X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fsnow.c;h=28f04f119b2dd770cae7c9e23d755da522d01c12;hb=3fbc9bbb884da6a1fb331b1cb03945008ee36312;hp=ca85ad676d10749e4db0b4082d78d9ece169c32c;hpb=ccc745cdf488ee0b999ea922c0cf09262f92ed4a;p=ffmpeg diff --git a/libavcodec/snow.c b/libavcodec/snow.c index ca85ad676d1..28f04f119b2 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -1,31 +1,34 @@ /* * Copyright (C) 2004 Michael Niedermayer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/intmath.h" #include "avcodec.h" #include "dsputil.h" +#include "dwt.h" #include "snow.h" #include "rangecoder.h" #include "mathops.h" #include "mpegvideo.h" +#include "h263.h" #undef NDEBUG #include @@ -434,11 +437,11 @@ typedef struct Plane{ }Plane; typedef struct SnowContext{ -// MpegEncContext m; // needed for motion estimation, should not be used for anything else, the idea is to eventually make the motion estimation independent of MpegEncContext, so this will be removed then (FIXME/XXX) AVCodecContext *avctx; RangeCoder c; DSPContext dsp; + DWTContext dwt; AVFrame new_picture; AVFrame input_picture; ///< new_picture with the internal linesizes AVFrame current_picture; @@ -493,91 +496,6 @@ typedef struct SnowContext{ uint8_t *scratchbuf; }SnowContext; -typedef struct { - IDWTELEM *b0; - IDWTELEM *b1; - IDWTELEM *b2; - IDWTELEM *b3; - int y; -} DWTCompose; - -#define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num))) -//#define slice_buffer_get_line(slice_buf, line_num) (slice_buffer_load_line((slice_buf), (line_num))) - -static void iterative_me(SnowContext *s); - -static void slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer) -{ - int i; - - buf->base_buffer = base_buffer; - buf->line_count = line_count; - buf->line_width = line_width; - buf->data_count = max_allocated_lines; - buf->line = av_mallocz (sizeof(IDWTELEM *) * line_count); - buf->data_stack = av_malloc (sizeof(IDWTELEM *) * max_allocated_lines); - - for(i = 0; i < max_allocated_lines; i++){ - buf->data_stack[i] = av_malloc (sizeof(IDWTELEM) * line_width); - } - - buf->data_stack_top = max_allocated_lines - 1; -} - -static IDWTELEM * slice_buffer_load_line(slice_buffer * buf, int line) -{ - int offset; - IDWTELEM * buffer; - - assert(buf->data_stack_top >= 0); -// assert(!buf->line[line]); - if (buf->line[line]) - return buf->line[line]; - - offset = buf->line_width * line; - buffer = buf->data_stack[buf->data_stack_top]; - buf->data_stack_top--; - buf->line[line] = buffer; - - return buffer; -} - -static void slice_buffer_release(slice_buffer * buf, int line) -{ - int offset; - IDWTELEM * buffer; - - assert(line >= 0 && line < buf->line_count); - assert(buf->line[line]); - - offset = buf->line_width * line; - buffer = buf->line[line]; - buf->data_stack_top++; - buf->data_stack[buf->data_stack_top] = buffer; - buf->line[line] = NULL; -} - -static void slice_buffer_flush(slice_buffer * buf) -{ - int i; - for(i = 0; i < buf->line_count; i++){ - if (buf->line[i]) - slice_buffer_release(buf, i); - } -} - -static void slice_buffer_destroy(slice_buffer * buf) -{ - int i; - slice_buffer_flush(buf); - - for(i = buf->data_count - 1; i >= 0; i--){ - av_freep(&buf->data_stack[i]); - } - av_freep(&buf->data_stack); - av_freep(&buf->line); -} - #ifdef __sgi // Avoid a name clash on SGI IRIX #undef qexp @@ -585,14 +503,6 @@ static void slice_buffer_destroy(slice_buffer * buf) #define QEXPSHIFT (7-FRAC_BITS+8) //FIXME try to change this to 0 static uint8_t qexp[QROOT]; -static inline int mirror(int v, int m){ - while((unsigned)v > (unsigned)m){ - v=-v; - if(v<0) v+= 2*m; - } - return v; -} - static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){ int i; @@ -639,14 +549,14 @@ static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signe for(i=0; i=0; i--){ put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31 } if(is_signed) - put_rac(c, state+11 + FFMIN(e,10), v < 0); //11..21 + put_rac(c, state+11 + 10, v < 0); //11..21 } #endif /* 1 */ }else{ @@ -669,10 +579,8 @@ static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ a += a + get_rac(c, state+22 + FFMIN(i,9)); //22..31 } - if(is_signed && get_rac(c, state+11 + FFMIN(e,10))) //11..21 - return -a; - else - return a; + e= -(is_signed && get_rac(c, state+11 + FFMIN(e,10))); //11..21 + return (a^e)-e; } } @@ -716,3439 +624,3080 @@ static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){ return v; } -static av_always_inline void -lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, - int dst_step, int src_step, int ref_step, - int width, int mul, int add, int shift, - int highpass, int inverse){ - const int mirror_left= !highpass; - const int mirror_right= (width&1) ^ highpass; - const int w= (width>>1) - 1 + (highpass & width); - int i; - -#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref))) - if(mirror_left){ - dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse); - dst += dst_step; - src += src_step; - } +static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, int orientation){ + const int w= b->width; + const int h= b->height; + int x,y; - for(i=0; i>shift), - inverse); - } + int run, runs; + x_and_coeff *xc= b->x_coeff; + x_and_coeff *prev_xc= NULL; + x_and_coeff *prev2_xc= xc; + x_and_coeff *parent_xc= parent ? parent->x_coeff : NULL; + x_and_coeff *prev_parent_xc= parent_xc; - if(mirror_right){ - dst[w*dst_step] = - LIFT(src[w*src_step], - ((mul*2*ref[w*ref_step]+add)>>shift), - inverse); - } -} + runs= get_symbol2(&s->c, b->state[30], 0); + if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); + else run= INT_MAX; -static av_always_inline void -inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref, - int dst_step, int src_step, int ref_step, - int width, int mul, int add, int shift, - int highpass, int inverse){ - const int mirror_left= !highpass; - const int mirror_right= (width&1) ^ highpass; - const int w= (width>>1) - 1 + (highpass & width); - int i; + for(y=0; y>shift), inverse); - dst += dst_step; - src += src_step; - } + if(y && prev_xc->x == 0){ + rt= prev_xc->coeff; + } + for(x=0; x>shift), - inverse); - } + lt= t; t= rt; - if(mirror_right){ - dst[w*dst_step] = - LIFT(src[w*src_step], - ((mul*2*ref[w*ref_step]+add)>>shift), - inverse); - } -} + if(y){ + if(prev_xc->x <= x) + prev_xc++; + if(prev_xc->x == x + 1) + rt= prev_xc->coeff; + else + rt=0; + } + if(parent_xc){ + if(x>>1 > parent_xc->x){ + parent_xc++; + } + if(x>>1 == parent_xc->x){ + p= parent_xc->coeff; + } + } + if(/*ll|*/l|lt|t|rt|p){ + int context= av_log2(/*FFABS(ll) + */3*(l>>1) + (lt>>1) + (t&~1) + (rt>>1) + (p>>1)); -#ifndef liftS -static av_always_inline void -liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, - int dst_step, int src_step, int ref_step, - int width, int mul, int add, int shift, - int highpass, int inverse){ - const int mirror_left= !highpass; - const int mirror_right= (width&1) ^ highpass; - const int w= (width>>1) - 1 + (highpass & width); - int i; + v=get_rac(&s->c, &b->state[0][context]); + if(v){ + v= 2*(get_symbol2(&s->c, b->state[context + 2], context-4) + 1); + v+=get_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l&0xFF] + 3*quant3bA[t&0xFF]]); - assert(shift == 4); -#define LIFTS(src, ref, inv) \ - ((inv) ? \ - (src) + (((ref) + 4*(src))>>shift): \ - -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23))) - if(mirror_left){ - dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse); - dst += dst_step; - src += src_step; - } + xc->x=x; + (xc++)->coeff= v; + } + }else{ + if(!run){ + if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); + else run= INT_MAX; + v= 2*(get_symbol2(&s->c, b->state[0 + 2], 0-4) + 1); + v+=get_rac(&s->c, &b->state[0][16 + 1 + 3]); + + xc->x=x; + (xc++)->coeff= v; + }else{ + int max_run; + run--; + v=0; + + if(y) max_run= FFMIN(run, prev_xc->x - x - 2); + else max_run= FFMIN(run, w-x-1); + if(parent_xc) + max_run= FFMIN(max_run, 2*parent_xc->x - x - 1); + x+= max_run; + run-= max_run; + } + } + } + (xc++)->x= w+1; //end marker + prev_xc= prev2_xc; + prev2_xc= xc; - for(i=0; ix != parent->width+1) + parent_xc++; + parent_xc++; + prev_parent_xc= parent_xc; + }else{ + parent_xc= prev_parent_xc; + } + } } - if(mirror_right){ - dst[w*dst_step] = - LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse); - } + (xc++)->x= w+1; //end marker } -static av_always_inline void -inv_liftS(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref, - int dst_step, int src_step, int ref_step, - int width, int mul, int add, int shift, - int highpass, int inverse){ - const int mirror_left= !highpass; - const int mirror_right= (width&1) ^ highpass; - const int w= (width>>1) - 1 + (highpass & width); - int i; - assert(shift == 4); -#define LIFTS(src, ref, inv) \ - ((inv) ? \ - (src) + (((ref) + 4*(src))>>shift): \ - -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23))) - if(mirror_left){ - dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse); - dst += dst_step; - src += src_step; - } +static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, slice_buffer * sb, int start_y, int h, int save_state[1]){ + const int w= b->width; + int y; + const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); + int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); + int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; + int new_index = 0; - for(i=0; iibuf == s->spatial_idwt_buffer || s->qlog == LOSSLESS_QLOG){ + qadd= 0; + qmul= 1<>1; - int x; - const int w2= (width+1)>>1; - for(x=0; x>1; - A4 += (A1 + 1)>>1; - b[0+width2] = A1; - b[0 ] = A4; - for(x=1; x+1>1; - A2 += (A1 + A3 + 2)>>2; - b[x+width2] = A3; - b[x ] = A2; - - A1= temp[x+1+width2]; - A2= temp[x+2 ]; - A1 -= (A2 + A4)>>1; - A4 += (A1 + A3 + 2)>>2; - b[x+1+width2] = A1; - b[x+1 ] = A4; - } - A3= temp[width-1]; - A3 -= A2; - A2 += (A1 + A3 + 2)>>2; - b[width -1] = A3; - b[width2-1] = A2; + for(y=start_y; ystride_line + b->buf_y_offset) + b->buf_x_offset; + memset(line, 0, b->width*sizeof(IDWTELEM)); + v = b->x_coeff[new_index].coeff; + x = b->x_coeff[new_index++].x; + while(x < w){ + register int t= ( (v>>1)*qmul + qadd)>>QEXPSHIFT; + register int u= -(v&1); + line[x] = (t^u) - u; + + v = b->x_coeff[new_index].coeff; + x = b->x_coeff[new_index++].x; + } } -#else - lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0); - lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0); -#endif /* 0 */ -} -static void vertical_decompose53iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ - int i; + /* Save our variables for the next slice. */ + save_state[0] = new_index; - for(i=0; i>1; - } + return; } -static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ - int i; +static void reset_contexts(SnowContext *s){ //FIXME better initial contexts + int plane_index, level, orientation; - for(i=0; i>2; + for(plane_index=0; plane_index<3; plane_index++){ + for(level=0; levelplane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state)); + } + } } + memset(s->header_state, MID_STATE, sizeof(s->header_state)); + memset(s->block_state, MID_STATE, sizeof(s->block_state)); } -static void spatial_decompose53i(DWTELEM *buffer, int width, int height, int stride){ - int y; - DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride; - DWTELEM *b1= buffer + mirror(-2 , height-1)*stride; - - for(y=-2; yavctx->width )>>LOG2_MB_SIZE); + int h= -((-s->avctx->height)>>LOG2_MB_SIZE); - if(y+1<(unsigned)height) vertical_decompose53iH0(b1, b2, b3, width); - if(y+0<(unsigned)height) vertical_decompose53iL0(b0, b1, b2, width); + s->b_width = w; + s->b_height= h; - b0=b2; - b1=b3; - } + av_free(s->block); + s->block= av_mallocz(w * h * sizeof(BlockNode) << (s->block_max_depth*2)); + return 0; } -static void horizontal_decompose97i(DWTELEM *b, int width){ - DWTELEM temp[width]; - const int w2= (width+1)>>1; - - lift (temp+w2, b +1, b , 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1); - liftS(temp , b , temp+w2, 1, 2, 1, width, W_BM, W_BO, W_BS, 0, 0); - lift (b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0); - lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0); +static inline void copy_rac_state(RangeCoder *d, RangeCoder *s){ + uint8_t *bytestream= d->bytestream; + uint8_t *bytestream_start= d->bytestream_start; + *d= *s; + d->bytestream= bytestream; + d->bytestream_start= bytestream_start; } +static inline void set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type){ + const int w= s->b_width << s->block_max_depth; + const int rem_depth= s->block_max_depth - level; + const int index= (x + y*w) << rem_depth; + const int block_w= 1<>W_AS; + for(j=0; jblock[index + i + j*w]= block; + } } } -static void vertical_decompose97iH1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ +static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){ + const int offset[3]= { + y*c-> stride + x, + ((y*c->uvstride + x)>>1), + ((y*c->uvstride + x)>>1), + }; int i; - - for(i=0; i>W_CS; + for(i=0; i<3; i++){ + c->src[0][i]= src [i]; + c->ref[0][i]= ref [i] + offset[i]; } + assert(!ref_index); } -static void vertical_decompose97iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ - int i; - - for(i=0; i>W_BS; -#else - b1[i] = (16*4*b1[i] - 4*(b0[i] + b2[i]) + W_BO*5 + (5<<27)) / (5*16) - (1<<23); -#endif +static inline void pred_mv(SnowContext *s, int *mx, int *my, int ref, + const BlockNode *left, const BlockNode *top, const BlockNode *tr){ + if(s->ref_frames == 1){ + *mx = mid_pred(left->mx, top->mx, tr->mx); + *my = mid_pred(left->my, top->my, tr->my); + }else{ + const int *scale = scale_mv_ref[ref]; + *mx = mid_pred((left->mx * scale[left->ref] + 128) >>8, + (top ->mx * scale[top ->ref] + 128) >>8, + (tr ->mx * scale[tr ->ref] + 128) >>8); + *my = mid_pred((left->my * scale[left->ref] + 128) >>8, + (top ->my * scale[top ->ref] + 128) >>8, + (tr ->my * scale[tr ->ref] + 128) >>8); } } -static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){ - int i; - - for(i=0; i>W_DS; +static av_always_inline int same_block(BlockNode *a, BlockNode *b){ + if((a->type&BLOCK_INTRA) && (b->type&BLOCK_INTRA)){ + return !((a->color[0] - b->color[0]) | (a->color[1] - b->color[1]) | (a->color[2] - b->color[2])); + }else{ + return !((a->mx - b->mx) | (a->my - b->my) | (a->ref - b->ref) | ((a->type ^ b->type)&BLOCK_INTRA)); } } -static void spatial_decompose97i(DWTELEM *buffer, int width, int height, int stride){ - int y; - DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride; - DWTELEM *b1= buffer + mirror(-4 , height-1)*stride; - DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride; - DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride; - - for(y=-4; yb_width << s->block_max_depth; + const int rem_depth= s->block_max_depth - level; + const int index= (x + y*w) << rem_depth; + int trx= (x+1)<block[index-1] : &null_block; + const BlockNode *top = y ? &s->block[index-w] : &null_block; + const BlockNode *tl = y && x ? &s->block[index-w-1] : left; + const BlockNode *tr = y && trxblock[index-w+(1<level + 2*top->level + tl->level + tr->level; + + if(s->keyframe){ + set_blocks(s, level, x, y, null_block.color[0], null_block.color[1], null_block.color[2], null_block.mx, null_block.my, null_block.ref, BLOCK_INTRA); + return; } -} -void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ - int level; + if(level==s->block_max_depth || get_rac(&s->c, &s->block_state[4 + s_context])){ + int type, mx, my; + int l = left->color[0]; + int cb= left->color[1]; + int cr= left->color[2]; + int ref = 0; + int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); + int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 0*av_log2(2*FFABS(tr->mx - top->mx)); + int my_context= av_log2(2*FFABS(left->my - top->my)) + 0*av_log2(2*FFABS(tr->my - top->my)); + + type= get_rac(&s->c, &s->block_state[1 + left->type + top->type]) ? BLOCK_INTRA : 0; - for(level=0; level>level, height>>level, stride<>level, height>>level, stride<c, &s->block_state[32], 1); + cb+= get_symbol(&s->c, &s->block_state[64], 1); + cr+= get_symbol(&s->c, &s->block_state[96], 1); + }else{ + if(s->ref_frames > 1) + ref= get_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], 0); + pred_mv(s, &mx, &my, ref, left, top, tr); + mx+= get_symbol(&s->c, &s->block_state[128 + 32*(mx_context + 16*!!ref)], 1); + my+= get_symbol(&s->c, &s->block_state[128 + 32*(my_context + 16*!!ref)], 1); } + set_blocks(s, level, x, y, l, cb, cr, mx, my, ref, type); + }else{ + decode_q_branch(s, level+1, 2*x+0, 2*y+0); + decode_q_branch(s, level+1, 2*x+1, 2*y+0); + decode_q_branch(s, level+1, 2*x+0, 2*y+1); + decode_q_branch(s, level+1, 2*x+1, 2*y+1); } } -static void horizontal_compose53i(IDWTELEM *b, int width){ - IDWTELEM temp[width]; - const int width2= width>>1; - const int w2= (width+1)>>1; - int x; +static void decode_blocks(SnowContext *s){ + int x, y; + int w= s->b_width; + int h= s->b_height; -#if 0 - int A1,A2,A3,A4; - A2= temp[1 ]; - A4= temp[0 ]; - A1= temp[0+width2]; - A1 -= (A2 + A4)>>1; - A4 += (A1 + 1)>>1; - b[0+width2] = A1; - b[0 ] = A4; - for(x=1; x+1>1; - A2 += (A1 + A3 + 2)>>2; - b[x+width2] = A3; - b[x ] = A2; - - A1= temp[x+1+width2]; - A2= temp[x+2 ]; - A1 -= (A2 + A4)>>1; - A4 += (A1 + A3 + 2)>>2; - b[x+1+width2] = A1; - b[x+1 ] = A4; - } - A3= temp[width-1]; - A3 -= A2; - A2 += (A1 + A3 + 2)>>2; - b[width -1] = A3; - b[width2-1] = A2; -#else - inv_lift(temp , b , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 1); - inv_lift(temp+w2, b+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 1); -#endif /* 0 */ - for(x=0; x>1; - } -} - -static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ - int i; - - for(i=0; i>2; - } -} - -static void spatial_compose53i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){ - cs->b0 = slice_buffer_get_line(sb, mirror(-1-1, height-1) * stride_line); - cs->b1 = slice_buffer_get_line(sb, mirror(-1 , height-1) * stride_line); - cs->y = -1; -} - -static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){ - cs->b0 = buffer + mirror(-1-1, height-1)*stride; - cs->b1 = buffer + mirror(-1 , height-1)*stride; - cs->y = -1; -} - -static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){ - int y= cs->y; - - IDWTELEM *b0= cs->b0; - IDWTELEM *b1= cs->b1; - IDWTELEM *b2= slice_buffer_get_line(sb, mirror(y+1, height-1) * stride_line); - IDWTELEM *b3= slice_buffer_get_line(sb, mirror(y+2, height-1) * stride_line); - - if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width); - if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width); - - if(y-1<(unsigned)height) horizontal_compose53i(b0, width); - if(y+0<(unsigned)height) horizontal_compose53i(b1, width); - - cs->b0 = b2; - cs->b1 = b3; - cs->y += 2; -} - -static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){ - int y= cs->y; - IDWTELEM *b0= cs->b0; - IDWTELEM *b1= cs->b1; - IDWTELEM *b2= buffer + mirror(y+1, height-1)*stride; - IDWTELEM *b3= buffer + mirror(y+2, height-1)*stride; - - if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width); - if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width); - - if(y-1<(unsigned)height) horizontal_compose53i(b0, width); - if(y+0<(unsigned)height) horizontal_compose53i(b1, width); - - cs->b0 = b2; - cs->b1 = b3; - cs->y += 2; -} - -static void av_unused spatial_compose53i(IDWTELEM *buffer, int width, int height, int stride){ - DWTCompose cs; - spatial_compose53i_init(&cs, buffer, height, stride); - while(cs.y <= height) - spatial_compose53i_dy(&cs, buffer, width, height, stride); -} - - -void ff_snow_horizontal_compose97i(IDWTELEM *b, int width){ - IDWTELEM temp[width]; - const int w2= (width+1)>>1; - - inv_lift (temp , b , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 1); - inv_lift (temp+w2, b +w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 1); - inv_liftS(b , temp , temp+w2, 2, 1, 1, width, W_BM, W_BO, W_BS, 0, 1); - inv_lift (b+1 , temp+w2, b , 2, 1, 2, width, W_AM, W_AO, W_AS, 1, 0); -} - -static void vertical_compose97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ - int i; - - for(i=0; i>W_AS; - } -} - -static void vertical_compose97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ - int i; - - for(i=0; i>W_CS; - } -} - -static void vertical_compose97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ - int i; - - for(i=0; i>W_BS; -#else - b1[i] += (W_BM*(b0[i] + b2[i])+4*b1[i]+W_BO)>>W_BS; -#endif - } -} - -static void vertical_compose97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){ - int i; - - for(i=0; i>W_DS; + for(y=0; y>W_DS; - b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS; -#ifdef liftS - b2[i] += (W_BM*(b1[i] + b3[i])+W_BO)>>W_BS; -#else - b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS; -#endif - b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; - } -} + static const uint8_t brane[256]={ + 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12, + 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52, + 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc, + 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc, + 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc, + 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc, + 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc, + 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16, + 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56, + 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96, + 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc, + 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc, + 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc, + 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc, + 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc, + 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A, + }; -static void spatial_compose97i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){ - cs->b0 = slice_buffer_get_line(sb, mirror(-3-1, height-1) * stride_line); - cs->b1 = slice_buffer_get_line(sb, mirror(-3 , height-1) * stride_line); - cs->b2 = slice_buffer_get_line(sb, mirror(-3+1, height-1) * stride_line); - cs->b3 = slice_buffer_get_line(sb, mirror(-3+2, height-1) * stride_line); - cs->y = -3; -} + static const uint8_t needs[16]={ + 0,1,0,0, + 2,4,2,0, + 0,1,0,0, + 15 + }; -static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){ - cs->b0 = buffer + mirror(-3-1, height-1)*stride; - cs->b1 = buffer + mirror(-3 , height-1)*stride; - cs->b2 = buffer + mirror(-3+1, height-1)*stride; - cs->b3 = buffer + mirror(-3+2, height-1)*stride; - cs->y = -3; -} + int x, y, b, r, l; + int16_t tmpIt [64*(32+HTAPS_MAX)]; + uint8_t tmp2t[3][stride*(32+HTAPS_MAX)]; + int16_t *tmpI= tmpIt; + uint8_t *tmp2= tmp2t[0]; + const uint8_t *hpel[11]; + assert(dx<16 && dy<16); + r= brane[dx + 16*dy]&15; + l= brane[dx + 16*dy]>>4; -static void spatial_compose97i_dy_buffered(DSPContext *dsp, DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){ - int y = cs->y; + b= needs[l] | needs[r]; + if(p && !p->diag_mc) + b= 15; - IDWTELEM *b0= cs->b0; - IDWTELEM *b1= cs->b1; - IDWTELEM *b2= cs->b2; - IDWTELEM *b3= cs->b3; - IDWTELEM *b4= slice_buffer_get_line(sb, mirror(y + 3, height - 1) * stride_line); - IDWTELEM *b5= slice_buffer_get_line(sb, mirror(y + 4, height - 1) * stride_line); + if(b&5){ + for(y=0; y < b_h+HTAPS_MAX-1; y++){ + for(x=0; x < b_w; x++){ + int a_1=src[x + HTAPS_MAX/2-4]; + int a0= src[x + HTAPS_MAX/2-3]; + int a1= src[x + HTAPS_MAX/2-2]; + int a2= src[x + HTAPS_MAX/2-1]; + int a3= src[x + HTAPS_MAX/2+0]; + int a4= src[x + HTAPS_MAX/2+1]; + int a5= src[x + HTAPS_MAX/2+2]; + int a6= src[x + HTAPS_MAX/2+3]; + int am=0; + if(!p || p->fast_mc){ + am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); + tmpI[x]= am; + am= (am+16)>>5; + }else{ + am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6); + tmpI[x]= am; + am= (am+32)>>6; + } - if(y>0 && y+4vertical_compose97i(b0, b1, b2, b3, b4, b5, width); - }else{ - if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width); - if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width); - if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width); - if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width); + if(am&(~255)) am= ~(am>>31); + tmp2[x]= am; + } + tmpI+= 64; + tmp2+= stride; + src += stride; + } + src -= stride*y; } + src += HTAPS_MAX/2 - 1; + tmp2= tmp2t[1]; - if(y-1<(unsigned)height) dsp->horizontal_compose97i(b0, width); - if(y+0<(unsigned)height) dsp->horizontal_compose97i(b1, width); - - cs->b0=b2; - cs->b1=b3; - cs->b2=b4; - cs->b3=b5; - cs->y += 2; -} - -static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){ - int y = cs->y; - IDWTELEM *b0= cs->b0; - IDWTELEM *b1= cs->b1; - IDWTELEM *b2= cs->b2; - IDWTELEM *b3= cs->b3; - IDWTELEM *b4= buffer + mirror(y+3, height-1)*stride; - IDWTELEM *b5= buffer + mirror(y+4, height-1)*stride; - - if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width); - if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width); - if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width); - if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width); - - if(y-1<(unsigned)height) ff_snow_horizontal_compose97i(b0, width); - if(y+0<(unsigned)height) ff_snow_horizontal_compose97i(b1, width); - - cs->b0=b2; - cs->b1=b3; - cs->b2=b4; - cs->b3=b5; - cs->y += 2; -} - -static void av_unused spatial_compose97i(IDWTELEM *buffer, int width, int height, int stride){ - DWTCompose cs; - spatial_compose97i_init(&cs, buffer, height, stride); - while(cs.y <= height) - spatial_compose97i_dy(&cs, buffer, width, height, stride); -} + if(b&2){ + for(y=0; y < b_h; y++){ + for(x=0; x < b_w+1; x++){ + int a_1=src[x + (HTAPS_MAX/2-4)*stride]; + int a0= src[x + (HTAPS_MAX/2-3)*stride]; + int a1= src[x + (HTAPS_MAX/2-2)*stride]; + int a2= src[x + (HTAPS_MAX/2-1)*stride]; + int a3= src[x + (HTAPS_MAX/2+0)*stride]; + int a4= src[x + (HTAPS_MAX/2+1)*stride]; + int a5= src[x + (HTAPS_MAX/2+2)*stride]; + int a6= src[x + (HTAPS_MAX/2+3)*stride]; + int am=0; + if(!p || p->fast_mc) + am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5; + else + am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6; -static void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count){ - int level; - for(level=decomposition_count-1; level>=0; level--){ - switch(type){ - case DWT_97: spatial_compose97i_buffered_init(cs+level, sb, height>>level, stride_line<>level, stride_line<>31); + tmp2[x]= am; + } + src += stride; + tmp2+= stride; } + src -= stride*y; } -} - -static void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ - int level; - for(level=decomposition_count-1; level>=0; level--){ - switch(type){ - case DWT_97: spatial_compose97i_init(cs+level, buffer, height>>level, stride<>level, stride<fast_mc) + am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10; + else + am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12; + if(am&(~255)) am= ~(am>>31); + tmp2[x]= am; + } + tmpI+= 64; + tmp2+= stride; } } -} -static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y){ - const int support = type==1 ? 3 : 5; - int level; - if(type==2) return; + hpel[ 0]= src; + hpel[ 1]= tmp2t[0] + stride*(HTAPS_MAX/2-1); + hpel[ 2]= src + 1; - for(level=decomposition_count-1; level>=0; level--){ - while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){ - switch(type){ - case DWT_97: spatial_compose97i_dy(cs+level, buffer, width>>level, height>>level, stride<>level, height>>level, stride<=0; level--){ - while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){ - switch(type){ - case DWT_97: spatial_compose97i_dy_buffered(dsp, cs+level, slice_buf, width>>level, height>>level, stride_line<>level, height>>level, stride_line<>6; + } + src1+=stride; + src2+=stride; + src3+=stride; + src4+=stride; + dst +=stride; + } + }else{ + const uint8_t *src1= hpel[l]; + const uint8_t *src2= hpel[r]; + int a= weight[((dx&7) + (8*(dy&7)))]; + int b= 8-a; + for(y=0; y < b_h; y++){ + for(x=0; x < b_w; x++){ + dst[x]= (a*src1[x] + b*src2[x] + 4)>>3; } + src1+=stride; + src2+=stride; + dst +=stride; } } } -static void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){ - DWTCompose cs[MAX_DECOMPOSITIONS]; - int y; - ff_spatial_idwt_init(cs, buffer, width, height, stride, type, decomposition_count); - for(y=0; ywidth; - const int h= b->height; - int x, y; - - if(1){ - int run=0; - int runs[w*h]; - int run_index=0; - int max_index; - - for(y=0; y 1){ - if(orientation==1) ll= src[y + (x-2)*stride]; - else ll= src[x - 2 + y*stride]; - }*/ - } - if(parent){ - int px= x>>1; - int py= y>>1; - if(pxparent->width && pyparent->height) - p= parent[px + py*2*stride]; - } - if(!(/*ll|*/l|lt|t|rt|p)){ - if(v){ - runs[run_index++]= run; - run=0; - }else{ - run++; - } +static void pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){ + if(block->type & BLOCK_INTRA){ + int x, y; + const int color = block->color[plane_index]; + const int color4= color*0x01010101; + if(b_w==32){ + for(y=0; y < b_h; y++){ + *(uint32_t*)&dst[0 + y*stride]= color4; + *(uint32_t*)&dst[4 + y*stride]= color4; + *(uint32_t*)&dst[8 + y*stride]= color4; + *(uint32_t*)&dst[12+ y*stride]= color4; + *(uint32_t*)&dst[16+ y*stride]= color4; + *(uint32_t*)&dst[20+ y*stride]= color4; + *(uint32_t*)&dst[24+ y*stride]= color4; + *(uint32_t*)&dst[28+ y*stride]= color4; + } + }else if(b_w==16){ + for(y=0; y < b_h; y++){ + *(uint32_t*)&dst[0 + y*stride]= color4; + *(uint32_t*)&dst[4 + y*stride]= color4; + *(uint32_t*)&dst[8 + y*stride]= color4; + *(uint32_t*)&dst[12+ y*stride]= color4; + } + }else if(b_w==8){ + for(y=0; y < b_h; y++){ + *(uint32_t*)&dst[0 + y*stride]= color4; + *(uint32_t*)&dst[4 + y*stride]= color4; + } + }else if(b_w==4){ + for(y=0; y < b_h; y++){ + *(uint32_t*)&dst[0 + y*stride]= color4; + } + }else{ + for(y=0; y < b_h; y++){ + for(x=0; x < b_w; x++){ + dst[x + y*stride]= color; } } } - max_index= run_index; - runs[run_index++]= run; - run_index=0; - run= runs[run_index++]; + }else{ + uint8_t *src= s->last_picture[block->ref].data[plane_index]; + const int scale= plane_index ? s->mv_scale : 2*s->mv_scale; + int mx= block->mx*scale; + int my= block->my*scale; + const int dx= mx&15; + const int dy= my&15; + const int tab_index= 3 - (b_w>>2) + (b_w>>4); + sx += (mx>>4) - (HTAPS_MAX/2-1); + sy += (my>>4) - (HTAPS_MAX/2-1); + src += sx + sy*stride; + if( (unsigned)sx >= w - b_w - (HTAPS_MAX-2) + || (unsigned)sy >= h - b_h - (HTAPS_MAX-2)){ + s->dsp.emulated_edge_mc(tmp + MB_SIZE, src, stride, b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, sx, sy, w, h); + src= tmp + MB_SIZE; + } +// assert(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h); +// assert(!(b_w&(b_w-1))); + assert(b_w>1 && b_h>1); + assert((tab_index>=0 && tab_index<4) || b_w==32); + if((dx&3) || (dy&3) || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) || (b_w&(b_w-1)) || !s->plane[plane_index].fast_mc ) + mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy); + else if(b_w==32){ + int y; + for(y=0; ydsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride); + s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride); + } + }else if(b_w==b_h) + s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride); + else if(b_w==2*b_h){ + s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride); + s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride); + }else{ + assert(2*b_w==b_h); + s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride); + s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride); + } + } +} - put_symbol2(&s->c, b->state[30], max_index, 0); - if(run_index <= max_index) - put_symbol2(&s->c, b->state[1], run, 3); +void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, + int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){ + int y, x; + IDWTELEM * dst; + for(y=0; y>1); + const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); + const uint8_t *obmc4= obmc3+ (obmc_stride>>1); + dst = slice_buffer_get_line(sb, src_y + y); + for(x=0; xc.bytestream_end - s->c.bytestream < w*40){ - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; + v <<= 8 - LOG2_OBMC_MAX; + if(FRAC_BITS != 8){ + v >>= 8 - FRAC_BITS; } - for(x=0; x> FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst8[x + y*src_stride] = v; + }else{ + dst[x + src_x] -= v; + } + } + } +} - if(y){ - t= src[x + (y-1)*stride]; - if(x){ - lt= src[x - 1 + (y-1)*stride]; - } - if(x + 1 < w){ - rt= src[x + 1 + (y-1)*stride]; - } - } - if(x){ - l= src[x - 1 + y*stride]; - /*if(x > 1){ - if(orientation==1) ll= src[y + (x-2)*stride]; - else ll= src[x - 2 + y*stride]; - }*/ - } - if(parent){ - int px= x>>1; - int py= y>>1; - if(pxparent->width && pyparent->height) - p= parent[px + py*2*stride]; - } - if(/*ll|*/l|lt|t|rt|p){ - int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); +//FIXME name cleanup (b_w, block_w, b_width stuff) +static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index){ + const int b_width = s->b_width << s->block_max_depth; + const int b_height= s->b_height << s->block_max_depth; + const int b_stride= b_width; + BlockNode *lt= &s->block[b_x + b_y*b_stride]; + BlockNode *rt= lt+1; + BlockNode *lb= lt+b_stride; + BlockNode *rb= lb+1; + uint8_t *block[4]; + int tmp_step= src_stride >= 7*MB_SIZE ? MB_SIZE : MB_SIZE*src_stride; + uint8_t *tmp = s->scratchbuf; + uint8_t *ptmp; + int x,y; - put_rac(&s->c, &b->state[0][context], !!v); - }else{ - if(!run){ - run= runs[run_index++]; + if(b_x<0){ + lt= rt; + lb= rb; + }else if(b_x + 1 >= b_width){ + rt= lt; + rb= lb; + } + if(b_y<0){ + lt= lb; + rt= rb; + }else if(b_y + 1 >= b_height){ + lb= lt; + rb= rt; + } - if(run_index <= max_index) - put_symbol2(&s->c, b->state[1], run, 3); - assert(v); - }else{ - run--; - assert(!v); - } - } - if(v){ - int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); - int l2= 2*FFABS(l) + (l<0); - int t2= 2*FFABS(t) + (t<0); + if(src_x<0){ //FIXME merge with prev & always round internal width up to *16 + obmc -= src_x; + b_w += src_x; + if(!sliced && !offset_dst) + dst -= src_x; + src_x=0; + }else if(src_x + b_w > w){ + b_w = w - src_x; + } + if(src_y<0){ + obmc -= src_y*obmc_stride; + b_h += src_y; + if(!sliced && !offset_dst) + dst -= src_y*dst_stride; + src_y=0; + }else if(src_y + b_h> h){ + b_h = h - src_y; + } + + if(b_w<=0 || b_h<=0) return; + + assert(src_stride > 2*MB_SIZE + 5); + + if(!sliced && offset_dst) + dst += src_x + src_y*dst_stride; + dst8+= src_x + src_y*src_stride; +// src += src_x + src_y*src_stride; + + ptmp= tmp + 3*tmp_step; + block[0]= ptmp; + ptmp+=tmp_step; + pred_block(s, block[0], tmp, src_stride, src_x, src_y, b_w, b_h, lt, plane_index, w, h); + + if(same_block(lt, rt)){ + block[1]= block[0]; + }else{ + block[1]= ptmp; + ptmp+=tmp_step; + pred_block(s, block[1], tmp, src_stride, src_x, src_y, b_w, b_h, rt, plane_index, w, h); + } + + if(same_block(lt, lb)){ + block[2]= block[0]; + }else if(same_block(rt, lb)){ + block[2]= block[1]; + }else{ + block[2]= ptmp; + ptmp+=tmp_step; + pred_block(s, block[2], tmp, src_stride, src_x, src_y, b_w, b_h, lb, plane_index, w, h); + } + + if(same_block(lt, rb) ){ + block[3]= block[0]; + }else if(same_block(rt, rb)){ + block[3]= block[1]; + }else if(same_block(lb, rb)){ + block[3]= block[2]; + }else{ + block[3]= ptmp; + pred_block(s, block[3], tmp, src_stride, src_x, src_y, b_w, b_h, rb, plane_index, w, h); + } +#if 0 + for(y=0; y>1); + for(x=0; x>1); + for(x=0; x>1); + uint8_t *obmc4= obmc3+ (obmc_stride>>1); + for(x=0; xdwt.inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8); + }else{ + for(y=0; y>1); + const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); + const uint8_t *obmc4= obmc3+ (obmc_stride>>1); + for(x=0; xc, b->state[context + 2], FFABS(v)-1, context-4); - put_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l2&0xFF] + 3*quant3bA[t2&0xFF]], v<0); + v <<= 8 - LOG2_OBMC_MAX; + if(FRAC_BITS != 8){ + v >>= 8 - FRAC_BITS; + } + if(add){ + v += dst[x + y*dst_stride]; + v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst8[x + y*src_stride] = v; + }else{ + dst[x + y*dst_stride] -= v; } } } } - return 0; -} - -static int encode_subband(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){ -// encode_subband_qtree(s, b, src, parent, stride, orientation); -// encode_subband_z0run(s, b, src, parent, stride, orientation); - return encode_subband_c0run(s, b, src, parent, stride, orientation); -// encode_subband_dzr(s, b, src, parent, stride, orientation); +#endif /* 0 */ } -static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, int orientation){ - const int w= b->width; - const int h= b->height; - int x,y; - - if(1){ - int run, runs; - x_and_coeff *xc= b->x_coeff; - x_and_coeff *prev_xc= NULL; - x_and_coeff *prev2_xc= xc; - x_and_coeff *parent_xc= parent ? parent->x_coeff : NULL; - x_and_coeff *prev_parent_xc= parent_xc; - - runs= get_symbol2(&s->c, b->state[30], 0); - if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); - else run= INT_MAX; - - for(y=0; yx == 0){ - rt= prev_xc->coeff; - } - for(x=0; xx <= x) - prev_xc++; - if(prev_xc->x == x + 1) - rt= prev_xc->coeff; - else - rt=0; - } - if(parent_xc){ - if(x>>1 > parent_xc->x){ - parent_xc++; - } - if(x>>1 == parent_xc->x){ - p= parent_xc->coeff; - } - } - if(/*ll|*/l|lt|t|rt|p){ - int context= av_log2(/*FFABS(ll) + */3*(l>>1) + (lt>>1) + (t&~1) + (rt>>1) + (p>>1)); - - v=get_rac(&s->c, &b->state[0][context]); - if(v){ - v= 2*(get_symbol2(&s->c, b->state[context + 2], context-4) + 1); - v+=get_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l&0xFF] + 3*quant3bA[t&0xFF]]); +static av_always_inline void predict_slice_buffered(SnowContext *s, slice_buffer * sb, IDWTELEM * old_buffer, int plane_index, int add, int mb_y){ + Plane *p= &s->plane[plane_index]; + const int mb_w= s->b_width << s->block_max_depth; + const int mb_h= s->b_height << s->block_max_depth; + int x, y, mb_x; + int block_size = MB_SIZE >> s->block_max_depth; + int block_w = plane_index ? block_size/2 : block_size; + const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; + int obmc_stride= plane_index ? block_size : 2*block_size; + int ref_stride= s->current_picture.linesize[plane_index]; + uint8_t *dst8= s->current_picture.data[plane_index]; + int w= p->width; + int h= p->height; - xc->x=x; - (xc++)->coeff= v; - } - }else{ - if(!run){ - if(runs-- > 0) run= get_symbol2(&s->c, b->state[1], 3); - else run= INT_MAX; - v= 2*(get_symbol2(&s->c, b->state[0 + 2], 0-4) + 1); - v+=get_rac(&s->c, &b->state[0][16 + 1 + 3]); + if(s->keyframe || (s->avctx->debug&512)){ + if(mb_y==mb_h) + return; - xc->x=x; - (xc++)->coeff= v; - }else{ - int max_run; - run--; - v=0; - - if(y) max_run= FFMIN(run, prev_xc->x - x - 2); - else max_run= FFMIN(run, w-x-1); - if(parent_xc) - max_run= FFMIN(max_run, 2*parent_xc->x - x - 1); - x+= max_run; - run-= max_run; - } + if(add){ + for(y=block_w*mb_y; yline[y]; + for(x=0; x>= FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst8[x + y*ref_stride]= v; } } - (xc++)->x= w+1; //end marker - prev_xc= prev2_xc; - prev2_xc= xc; - - if(parent_xc){ - if(y&1){ - while(parent_xc->x != parent->width+1) - parent_xc++; - parent_xc++; - prev_parent_xc= parent_xc; - }else{ - parent_xc= prev_parent_xc; + }else{ + for(y=block_w*mb_y; yline[y]; + for(x=0; xx= w+1; //end marker - } -} - -static inline void decode_subband_slice_buffered(SnowContext *s, SubBand *b, slice_buffer * sb, int start_y, int h, int save_state[1]){ - const int w= b->width; - int y; - const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); - int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; - int new_index = 0; - - if(b->ibuf == s->spatial_idwt_buffer || s->qlog == LOSSLESS_QLOG){ - qadd= 0; - qmul= 1<stride_line + b->buf_y_offset) + b->buf_x_offset; - memset(line, 0, b->width*sizeof(IDWTELEM)); - v = b->x_coeff[new_index].coeff; - x = b->x_coeff[new_index++].x; - while(x < w){ - register int t= ( (v>>1)*qmul + qadd)>>QEXPSHIFT; - register int u= -(v&1); - line[x] = (t^u) - u; - - v = b->x_coeff[new_index].coeff; - x = b->x_coeff[new_index++].x; - } + for(mb_x=0; mb_x<=mb_w; mb_x++){ + add_yblock(s, 1, sb, old_buffer, dst8, obmc, + block_w*mb_x - block_w/2, + block_w*mb_y - block_w/2, + block_w, block_w, + w, h, + w, ref_stride, obmc_stride, + mb_x - 1, mb_y - 1, + add, 0, plane_index); } - - /* Save our variables for the next slice. */ - save_state[0] = new_index; - - return; } -static void reset_contexts(SnowContext *s){ //FIXME better initial contexts - int plane_index, level, orientation; +static av_always_inline void predict_slice(SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y){ + Plane *p= &s->plane[plane_index]; + const int mb_w= s->b_width << s->block_max_depth; + const int mb_h= s->b_height << s->block_max_depth; + int x, y, mb_x; + int block_size = MB_SIZE >> s->block_max_depth; + int block_w = plane_index ? block_size/2 : block_size; + const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; + const int obmc_stride= plane_index ? block_size : 2*block_size; + int ref_stride= s->current_picture.linesize[plane_index]; + uint8_t *dst8= s->current_picture.data[plane_index]; + int w= p->width; + int h= p->height; - for(plane_index=0; plane_index<3; plane_index++){ - for(level=0; levelplane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state)); + if(s->keyframe || (s->avctx->debug&512)){ + if(mb_y==mb_h) + return; + + if(add){ + for(y=block_w*mb_y; y>= FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst8[x + y*ref_stride]= v; + } + } + }else{ + for(y=block_w*mb_y; yheader_state, MID_STATE, sizeof(s->header_state)); - memset(s->block_state, MID_STATE, sizeof(s->block_state)); -} - -static int alloc_blocks(SnowContext *s){ - int w= -((-s->avctx->width )>>LOG2_MB_SIZE); - int h= -((-s->avctx->height)>>LOG2_MB_SIZE); - s->b_width = w; - s->b_height= h; + return; + } - s->block= av_mallocz(w * h * sizeof(BlockNode) << (s->block_max_depth*2)); - return 0; + for(mb_x=0; mb_x<=mb_w; mb_x++){ + add_yblock(s, 0, NULL, buf, dst8, obmc, + block_w*mb_x - block_w/2, + block_w*mb_y - block_w/2, + block_w, block_w, + w, h, + w, ref_stride, obmc_stride, + mb_x - 1, mb_y - 1, + add, 1, plane_index); + } } -static inline void copy_rac_state(RangeCoder *d, RangeCoder *s){ - uint8_t *bytestream= d->bytestream; - uint8_t *bytestream_start= d->bytestream_start; - *d= *s; - d->bytestream= bytestream; - d->bytestream_start= bytestream_start; +static av_always_inline void predict_plane(SnowContext *s, IDWTELEM *buf, int plane_index, int add){ + const int mb_h= s->b_height << s->block_max_depth; + int mb_y; + for(mb_y=0; mb_y<=mb_h; mb_y++) + predict_slice(s, buf, plane_index, add, mb_y); } -//near copy & paste from dsputil, FIXME -static int pix_sum(uint8_t * pix, int line_size, int w) -{ - int s, i, j; - - s = 0; - for (i = 0; i < w; i++) { - for (j = 0; j < w; j++) { - s += pix[0]; - pix ++; - } - pix += line_size - w; - } - return s; -} +static void dequantize_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int start_y, int end_y){ + const int w= b->width; + const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); + const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); + const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; + int x,y; -//near copy & paste from dsputil, FIXME -static int pix_norm1(uint8_t * pix, int line_size, int w) -{ - int s, i, j; - uint32_t *sq = ff_squareTbl + 256; + if(s->qlog == LOSSLESS_QLOG) return; - s = 0; - for (i = 0; i < w; i++) { - for (j = 0; j < w; j ++) { - s += sq[pix[0]]; - pix ++; + for(y=start_y; ystride_line) + b->buf_y_offset) + b->buf_x_offset; + for(x=0; x>(QEXPSHIFT)); //FIXME try different bias + }else if(i>0){ + line[x]= (( i*qmul + qadd)>>(QEXPSHIFT)); + } } - pix += line_size - w; } - return s; } -static inline void set_blocks(SnowContext *s, int level, int x, int y, int l, int cb, int cr, int mx, int my, int ref, int type){ - const int w= s->b_width << s->block_max_depth; - const int rem_depth= s->block_max_depth - level; - const int index= (x + y*w) << rem_depth; - const int block_w= 1<width; + int x,y; - block.color[0]= l; - block.color[1]= cb; - block.color[2]= cr; - block.mx= mx; - block.my= my; - block.ref= ref; - block.type= type; - block.level= level; + IDWTELEM * line=0; // silence silly "could be used without having been initialized" warning + IDWTELEM * prev; - for(j=0; jblock[index + i + j*w]= block; + if (start_y != 0) + line = slice_buffer_get_line(sb, ((start_y - 1) * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; + + for(y=start_y; ystride_line) + b->buf_y_offset) + b->buf_x_offset; + for(x=0; x stride + x, - ((y*c->uvstride + x)>>1), - ((y*c->uvstride + x)>>1), - }; - int i; - for(i=0; i<3; i++){ - c->src[0][i]= src [i]; - c->ref[0][i]= ref [i] + offset[i]; - } - assert(!ref_index); -} +static void decode_qlogs(SnowContext *s){ + int plane_index, level, orientation; -static inline void pred_mv(SnowContext *s, int *mx, int *my, int ref, - const BlockNode *left, const BlockNode *top, const BlockNode *tr){ - if(s->ref_frames == 1){ - *mx = mid_pred(left->mx, top->mx, tr->mx); - *my = mid_pred(left->my, top->my, tr->my); - }else{ - const int *scale = scale_mv_ref[ref]; - *mx = mid_pred((left->mx * scale[left->ref] + 128) >>8, - (top ->mx * scale[top ->ref] + 128) >>8, - (tr ->mx * scale[tr ->ref] + 128) >>8); - *my = mid_pred((left->my * scale[left->ref] + 128) >>8, - (top ->my * scale[top ->ref] + 128) >>8, - (tr ->my * scale[tr ->ref] + 128) >>8); + for(plane_index=0; plane_index<3; plane_index++){ + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1:0; orientation<4; orientation++){ + int q; + if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; + else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; + else q= get_symbol(&s->c, s->header_state, 1); + s->plane[plane_index].band[level][orientation].qlog= q; + } + } } } -//FIXME copy&paste -#define P_LEFT P[1] -#define P_TOP P[2] -#define P_TOPRIGHT P[3] -#define P_MEDIAN P[4] -#define P_MV1 P[9] -#define FLAG_QPEL 1 //must be 1 - -static int encode_q_branch(SnowContext *s, int level, int x, int y){ - uint8_t p_buffer[1024]; - uint8_t i_buffer[1024]; - uint8_t p_state[sizeof(s->block_state)]; - uint8_t i_state[sizeof(s->block_state)]; - RangeCoder pc, ic; - uint8_t *pbbak= s->c.bytestream; - uint8_t *pbbak_start= s->c.bytestream_start; - int score, score2, iscore, i_len, p_len, block_s, sum, base_bits; - const int w= s->b_width << s->block_max_depth; - const int h= s->b_height << s->block_max_depth; - const int rem_depth= s->block_max_depth - level; - const int index= (x + y*w) << rem_depth; - const int block_w= 1<<(LOG2_MB_SIZE - level); - int trx= (x+1)<block[index-1] : &null_block; - const BlockNode *top = y ? &s->block[index-w] : &null_block; - const BlockNode *right = trxblock[index+1] : &null_block; - const BlockNode *bottom= tryblock[index+w] : &null_block; - const BlockNode *tl = y && x ? &s->block[index-w-1] : left; - const BlockNode *tr = y && trxblock[index-w+(1<color[0]; - int pcb= left->color[1]; - int pcr= left->color[2]; - int pmx, pmy; - int mx=0, my=0; - int l,cr,cb; - const int stride= s->current_picture.linesize[0]; - const int uvstride= s->current_picture.linesize[1]; - uint8_t *current_data[3]= { s->input_picture.data[0] + (x + y* stride)*block_w, - s->input_picture.data[1] + (x + y*uvstride)*block_w/2, - s->input_picture.data[2] + (x + y*uvstride)*block_w/2}; - int P[10][2]; - int16_t last_mv[3][2]; - int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused - const int shift= 1+qpel; - MotionEstContext *c= &s->m.me; - int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); - int mx_context= av_log2(2*FFABS(left->mx - top->mx)); - int my_context= av_log2(2*FFABS(left->my - top->my)); - int s_context= 2*left->level + 2*top->level + tl->level + tr->level; - int ref, best_ref, ref_score, ref_mx, ref_my; - - assert(sizeof(s->block_state) >= 256); - if(s->keyframe){ - set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); - return 0; - } +#define GET_S(dst, check) \ + tmp= get_symbol(&s->c, s->header_state, 0);\ + if(!(check)){\ + av_log(s->avctx, AV_LOG_ERROR, "Error " #dst " is %d\n", tmp);\ + return -1;\ + }\ + dst= tmp; -// clip predictors / edge ? +static int decode_header(SnowContext *s){ + int plane_index, tmp; + uint8_t kstate[32]; - P_LEFT[0]= left->mx; - P_LEFT[1]= left->my; - P_TOP [0]= top->mx; - P_TOP [1]= top->my; - P_TOPRIGHT[0]= tr->mx; - P_TOPRIGHT[1]= tr->my; + memset(kstate, MID_STATE, sizeof(kstate)); - last_mv[0][0]= s->block[index].mx; - last_mv[0][1]= s->block[index].my; - last_mv[1][0]= right->mx; - last_mv[1][1]= right->my; - last_mv[2][0]= bottom->mx; - last_mv[2][1]= bottom->my; + s->keyframe= get_rac(&s->c, kstate); + if(s->keyframe || s->always_reset){ + reset_contexts(s); + s->spatial_decomposition_type= + s->qlog= + s->qbias= + s->mv_scale= + s->block_max_depth= 0; + } + if(s->keyframe){ + GET_S(s->version, tmp <= 0U) + s->always_reset= get_rac(&s->c, s->header_state); + s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0); + s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0); + GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS) + s->colorspace_type= get_symbol(&s->c, s->header_state, 0); + s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0); + s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0); + s->spatial_scalability= get_rac(&s->c, s->header_state); +// s->rate_scalability= get_rac(&s->c, s->header_state); + GET_S(s->max_ref_frames, tmp < (unsigned)MAX_REF_FRAMES) + s->max_ref_frames++; - s->m.mb_stride=2; - s->m.mb_x= - s->m.mb_y= 0; - c->skip= 0; + decode_qlogs(s); + } - assert(c-> stride == stride); - assert(c->uvstride == uvstride); + if(!s->keyframe){ + if(get_rac(&s->c, s->header_state)){ + for(plane_index=0; plane_index<2; plane_index++){ + int htaps, i, sum=0; + Plane *p= &s->plane[plane_index]; + p->diag_mc= get_rac(&s->c, s->header_state); + htaps= get_symbol(&s->c, s->header_state, 0)*2 + 2; + if((unsigned)htaps > HTAPS_MAX || htaps==0) + return -1; + p->htaps= htaps; + for(i= htaps/2; i; i--){ + p->hcoeff[i]= get_symbol(&s->c, s->header_state, 0) * (1-2*(i&1)); + sum += p->hcoeff[i]; + } + p->hcoeff[0]= 32-sum; + } + s->plane[2].diag_mc= s->plane[1].diag_mc; + s->plane[2].htaps = s->plane[1].htaps; + memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff)); + } + if(get_rac(&s->c, s->header_state)){ + GET_S(s->spatial_decomposition_count, 0 < tmp && tmp <= MAX_DECOMPOSITIONS) + decode_qlogs(s); + } + } - c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp); - c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp); - c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp); - c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV; + s->spatial_decomposition_type+= get_symbol(&s->c, s->header_state, 1); + if(s->spatial_decomposition_type > 1U){ + av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); + return -1; + } + if(FFMIN(s->avctx-> width>>s->chroma_h_shift, + s->avctx->height>>s->chroma_v_shift) >> (s->spatial_decomposition_count-1) <= 0){ + av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_count %d too large for size", s->spatial_decomposition_count); + return -1; + } - c->xmin = - x*block_w - 16+2; - c->ymin = - y*block_w - 16+2; - c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-2; - c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-2; + s->qlog += get_symbol(&s->c, s->header_state, 1); + s->mv_scale += get_symbol(&s->c, s->header_state, 1); + s->qbias += get_symbol(&s->c, s->header_state, 1); + s->block_max_depth+= get_symbol(&s->c, s->header_state, 1); + if(s->block_max_depth > 1 || s->block_max_depth < 0){ + av_log(s->avctx, AV_LOG_ERROR, "block_max_depth= %d is too large", s->block_max_depth); + s->block_max_depth= 0; + return -1; + } - if(P_LEFT[0] > (c->xmax<xmax< (c->ymax<ymax< (c->xmax<xmax< (c->ymax<ymax<xmin<xmin< (c->xmax<xmax< (c->ymax<ymax<pred_x= P_LEFT[0]; - c->pred_y= P_LEFT[1]; - } else { - c->pred_x = P_MEDIAN[0]; - c->pred_y = P_MEDIAN[1]; + for(i=0; iref_frames; ref++){ - init_ref(c, current_data, s->last_picture[ref].data, NULL, block_w*x, block_w*y, 0); - - ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv, - (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w); +static av_cold int common_init(AVCodecContext *avctx){ + SnowContext *s = avctx->priv_data; + int width, height; + int i, j; - assert(ref_mx >= c->xmin); - assert(ref_mx <= c->xmax); - assert(ref_my >= c->ymin); - assert(ref_my <= c->ymax); + s->avctx= avctx; + s->max_ref_frames=1; //just make sure its not an invalid value in case of no initial keyframe - ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w); - ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0); - ref_score+= 2*av_log2(2*ref)*c->penalty_factor; - if(s->ref_mvs[ref]){ - s->ref_mvs[ref][index][0]= ref_mx; - s->ref_mvs[ref][index][1]= ref_my; - s->ref_scores[ref][index]= ref_score; - } - if(score > ref_score){ - score= ref_score; - best_ref= ref; - mx= ref_mx; - my= ref_my; - } - } - //FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2 + dsputil_init(&s->dsp, avctx); + ff_dwt_init(&s->dwt); - // subpel search - base_bits= get_rac_count(&s->c) - 8*(s->c.bytestream - s->c.bytestream_start); - pc= s->c; - pc.bytestream_start= - pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo - memcpy(p_state, s->block_state, sizeof(s->block_state)); +#define mcf(dx,dy)\ + s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\ + s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ + s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\ + s->dsp.put_qpel_pixels_tab [1][dy+dx/4]=\ + s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\ + s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4]; - if(level!=s->block_max_depth) - put_rac(&pc, &p_state[4 + s_context], 1); - put_rac(&pc, &p_state[1 + left->type + top->type], 0); - if(s->ref_frames > 1) - put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0); - pred_mv(s, &pmx, &pmy, best_ref, left, top, tr); - put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1); - put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1); - p_len= pc.bytestream - pc.bytestream_start; - score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT; + mcf( 0, 0) + mcf( 4, 0) + mcf( 8, 0) + mcf(12, 0) + mcf( 0, 4) + mcf( 4, 4) + mcf( 8, 4) + mcf(12, 4) + mcf( 0, 8) + mcf( 4, 8) + mcf( 8, 8) + mcf(12, 8) + mcf( 0,12) + mcf( 4,12) + mcf( 8,12) + mcf(12,12) - block_s= block_w*block_w; - sum = pix_sum(current_data[0], stride, block_w); - l= (sum + block_s/2)/block_s; - iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s; +#define mcfh(dx,dy)\ + s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ + s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ + mc_block_hpel ## dx ## dy ## 16;\ + s->dsp.put_pixels_tab [1][dy/4+dx/8]=\ + s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\ + mc_block_hpel ## dx ## dy ## 8; - block_s= block_w*block_w>>2; - sum = pix_sum(current_data[1], uvstride, block_w>>1); - cb= (sum + block_s/2)/block_s; -// iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s; - sum = pix_sum(current_data[2], uvstride, block_w>>1); - cr= (sum + block_s/2)/block_s; -// iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s; + mcfh(0, 0) + mcfh(8, 0) + mcfh(0, 8) + mcfh(8, 8) - ic= s->c; - ic.bytestream_start= - ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo - memcpy(i_state, s->block_state, sizeof(s->block_state)); - if(level!=s->block_max_depth) - put_rac(&ic, &i_state[4 + s_context], 1); - put_rac(&ic, &i_state[1 + left->type + top->type], 1); - put_symbol(&ic, &i_state[32], l-pl , 1); - put_symbol(&ic, &i_state[64], cb-pcb, 1); - put_symbol(&ic, &i_state[96], cr-pcr, 1); - i_len= ic.bytestream - ic.bytestream_start; - iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT; + if(!qexp[0]) + init_qexp(); -// assert(score==256*256*256*64-1); - assert(iscore < 255*255*256 + s->lambda2*10); - assert(iscore >= 0); - assert(l>=0 && l<=255); - assert(pl>=0 && pl<=255); +// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); - if(level==0){ - int varc= iscore >> 8; - int vard= score >> 8; - if (vard <= 64 || vard < varc) - c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc); - else - c->scene_change_score+= s->m.qscale; - } + width= s->avctx->width; + height= s->avctx->height; - if(level!=s->block_max_depth){ - put_rac(&s->c, &s->block_state[4 + s_context], 0); - score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0); - score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0); - score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1); - score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1); - score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead + s->spatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM)); + s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here - if(score2 < score && score2 < iscore) - return score2; - } + for(i=0; ic= ic; - s->c.bytestream_start= pbbak_start; - s->c.bytestream= pbbak + i_len; - set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA); - memcpy(s->block_state, i_state, sizeof(s->block_state)); - return iscore; - }else{ - memcpy(pbbak, p_buffer, p_len); - s->c= pc; - s->c.bytestream_start= pbbak_start; - s->c.bytestream= pbbak + p_len; - set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0); - memcpy(s->block_state, p_state, sizeof(s->block_state)); - return score; - } -} + s->avctx->get_buffer(s->avctx, &s->mconly_picture); + s->scratchbuf = av_malloc(s->mconly_picture.linesize[0]*7*MB_SIZE); -static av_always_inline int same_block(BlockNode *a, BlockNode *b){ - if((a->type&BLOCK_INTRA) && (b->type&BLOCK_INTRA)){ - return !((a->color[0] - b->color[0]) | (a->color[1] - b->color[1]) | (a->color[2] - b->color[2])); - }else{ - return !((a->mx - b->mx) | (a->my - b->my) | (a->ref - b->ref) | ((a->type ^ b->type)&BLOCK_INTRA)); - } + return 0; } -static void encode_q_branch2(SnowContext *s, int level, int x, int y){ - const int w= s->b_width << s->block_max_depth; - const int rem_depth= s->block_max_depth - level; - const int index= (x + y*w) << rem_depth; - int trx= (x+1)<block[index]; - const BlockNode *left = x ? &s->block[index-1] : &null_block; - const BlockNode *top = y ? &s->block[index-w] : &null_block; - const BlockNode *tl = y && x ? &s->block[index-w-1] : left; - const BlockNode *tr = y && trxblock[index-w+(1<color[0]; - int pcb= left->color[1]; - int pcr= left->color[2]; - int pmx, pmy; - int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); - int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref; - int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref; - int s_context= 2*left->level + 2*top->level + tl->level + tr->level; +static int common_init_after_header(AVCodecContext *avctx){ + SnowContext *s = avctx->priv_data; + int plane_index, level, orientation; - if(s->keyframe){ - set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); - return; - } + for(plane_index=0; plane_index<3; plane_index++){ + int w= s->avctx->width; + int h= s->avctx->height; - if(level!=s->block_max_depth){ - if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){ - put_rac(&s->c, &s->block_state[4 + s_context], 1); - }else{ - put_rac(&s->c, &s->block_state[4 + s_context], 0); - encode_q_branch2(s, level+1, 2*x+0, 2*y+0); - encode_q_branch2(s, level+1, 2*x+1, 2*y+0); - encode_q_branch2(s, level+1, 2*x+0, 2*y+1); - encode_q_branch2(s, level+1, 2*x+1, 2*y+1); - return; + if(plane_index){ + w>>= s->chroma_h_shift; + h>>= s->chroma_v_shift; } - } - if(b->type & BLOCK_INTRA){ - pred_mv(s, &pmx, &pmy, 0, left, top, tr); - put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1); - put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1); - put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1); - put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1); - set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA); - }else{ - pred_mv(s, &pmx, &pmy, b->ref, left, top, tr); - put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0); - if(s->ref_frames > 1) - put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0); - put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1); - put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1); - set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0); - } -} + s->plane[plane_index].width = w; + s->plane[plane_index].height= h; -static void decode_q_branch(SnowContext *s, int level, int x, int y){ - const int w= s->b_width << s->block_max_depth; - const int rem_depth= s->block_max_depth - level; - const int index= (x + y*w) << rem_depth; - int trx= (x+1)<block[index-1] : &null_block; - const BlockNode *top = y ? &s->block[index-w] : &null_block; - const BlockNode *tl = y && x ? &s->block[index-w-1] : left; - const BlockNode *tr = y && trxblock[index-w+(1<level + 2*top->level + tl->level + tr->level; + for(level=s->spatial_decomposition_count-1; level>=0; level--){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &s->plane[plane_index].band[level][orientation]; - if(s->keyframe){ - set_blocks(s, level, x, y, null_block.color[0], null_block.color[1], null_block.color[2], null_block.mx, null_block.my, null_block.ref, BLOCK_INTRA); - return; - } + b->buf= s->spatial_dwt_buffer; + b->level= level; + b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); + b->width = (w + !(orientation&1))>>1; + b->height= (h + !(orientation>1))>>1; - if(level==s->block_max_depth || get_rac(&s->c, &s->block_state[4 + s_context])){ - int type, mx, my; - int l = left->color[0]; - int cb= left->color[1]; - int cr= left->color[2]; - int ref = 0; - int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); - int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 0*av_log2(2*FFABS(tr->mx - top->mx)); - int my_context= av_log2(2*FFABS(left->my - top->my)) + 0*av_log2(2*FFABS(tr->my - top->my)); + b->stride_line = 1 << (s->spatial_decomposition_count - level); + b->buf_x_offset = 0; + b->buf_y_offset = 0; - type= get_rac(&s->c, &s->block_state[1 + left->type + top->type]) ? BLOCK_INTRA : 0; + if(orientation&1){ + b->buf += (w+1)>>1; + b->buf_x_offset = (w+1)>>1; + } + if(orientation>1){ + b->buf += b->stride>>1; + b->buf_y_offset = b->stride_line >> 1; + } + b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer); - if(type){ - pred_mv(s, &mx, &my, 0, left, top, tr); - l += get_symbol(&s->c, &s->block_state[32], 1); - cb+= get_symbol(&s->c, &s->block_state[64], 1); - cr+= get_symbol(&s->c, &s->block_state[96], 1); - }else{ - if(s->ref_frames > 1) - ref= get_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], 0); - pred_mv(s, &mx, &my, ref, left, top, tr); - mx+= get_symbol(&s->c, &s->block_state[128 + 32*(mx_context + 16*!!ref)], 1); - my+= get_symbol(&s->c, &s->block_state[128 + 32*(my_context + 16*!!ref)], 1); + if(level) + b->parent= &s->plane[plane_index].band[level-1][orientation]; + //FIXME avoid this realloc + av_freep(&b->x_coeff); + b->x_coeff=av_mallocz(((b->width+1) * b->height+1)*sizeof(x_and_coeff)); + } + w= (w+1)>>1; + h= (h+1)>>1; } - set_blocks(s, level, x, y, l, cb, cr, mx, my, ref, type); - }else{ - decode_q_branch(s, level+1, 2*x+0, 2*y+0); - decode_q_branch(s, level+1, 2*x+1, 2*y+0); - decode_q_branch(s, level+1, 2*x+0, 2*y+1); - decode_q_branch(s, level+1, 2*x+1, 2*y+1); } + + return 0; } -static void encode_blocks(SnowContext *s, int search){ +#define QUANTIZE2 0 + +#if QUANTIZE2==1 +#define Q2_STEP 8 + +static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDWTELEM *r0, IDWTELEM *r1, int level, int orientation){ + SubBand *b= &p->band[level][orientation]; int x, y; - int w= s->b_width; - int h= s->b_height; + int xo=0; + int yo=0; + int step= 1 << (s->spatial_decomposition_count - level); - if(s->avctx->me_method == ME_ITER && !s->keyframe && search) - iterative_me(s); + if(orientation&1) + xo= step>>1; + if(orientation&2) + yo= step>>1; - for(y=0; yc.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return; - } - for(x=0; xavctx->me_method == ME_ITER || !search) - encode_q_branch2(s, 0, x, y); - else - encode_q_branch (s, 0, x, y); + //FIXME bias for nonzero ? + //FIXME optimize + memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP)); + for(y=0; yheight; y++){ + for(x=0; xwidth; x++){ + int sx= (x-xo + step/2) / step / Q2_STEP; + int sy= (y-yo + step/2) / step / Q2_STEP; + int v= r0[x + y*p->width] - r1[x + y*p->width]; + assert(sx>=0 && sy>=0 && sx < score_stride); + v= ((v+8)>>4)<<4; + score[sx + sy*score_stride] += v*v; + assert(score[sx + sy*score_stride] >= 0); } } } -static void decode_blocks(SnowContext *s){ - int x, y; - int w= s->b_width; - int h= s->b_height; +static void dequantize_all(SnowContext *s, Plane *p, IDWTELEM *buffer, int width, int height){ + int level, orientation; - for(y=0; yspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + IDWTELEM *dst= buffer + (b->ibuf - s->spatial_idwt_buffer); + + dequantize(s, b, dst, b->stride); } } } -static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy){ - static const uint8_t weight[64]={ - 8,7,6,5,4,3,2,1, - 7,7,0,0,0,0,0,1, - 6,0,6,0,0,0,2,0, - 5,0,0,5,0,3,0,0, - 4,0,0,0,4,0,0,0, - 3,0,0,5,0,3,0,0, - 2,0,6,0,0,0,2,0, - 1,7,0,0,0,0,0,1, - }; - - static const uint8_t brane[256]={ - 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12, - 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52, - 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc, - 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc, - 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc, - 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc, - 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc, - 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16, - 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56, - 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96, - 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc, - 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc, - 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc, - 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc, - 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc, - 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A, - }; - - static const uint8_t needs[16]={ - 0,1,0,0, - 2,4,2,0, - 0,1,0,0, - 15 - }; +static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, int height, int stride, int type){ + int level, orientation, ys, xs, x, y, pass; + IDWTELEM best_dequant[height * stride]; + IDWTELEM idwt2_buffer[height * stride]; + const int score_stride= (width + 10)/Q2_STEP; + int best_score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size + int score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size + int threshold= (s->m.lambda * s->m.lambda) >> 6; - int x, y, b, r, l; - int16_t tmpIt [64*(32+HTAPS_MAX)]; - uint8_t tmp2t[3][stride*(32+HTAPS_MAX)]; - int16_t *tmpI= tmpIt; - uint8_t *tmp2= tmp2t[0]; - const uint8_t *hpel[11]; - assert(dx<16 && dy<16); - r= brane[dx + 16*dy]&15; - l= brane[dx + 16*dy]>>4; + //FIXME pass the copy cleanly ? - b= needs[l] | needs[r]; - if(p && !p->diag_mc) - b= 15; +// memcpy(dwt_buffer, buffer, height * stride * sizeof(DWTELEM)); + ff_spatial_dwt(buffer, width, height, stride, type, s->spatial_decomposition_count); - if(b&5){ - for(y=0; y < b_h+HTAPS_MAX-1; y++){ - for(x=0; x < b_w; x++){ - int a_1=src[x + HTAPS_MAX/2-4]; - int a0= src[x + HTAPS_MAX/2-3]; - int a1= src[x + HTAPS_MAX/2-2]; - int a2= src[x + HTAPS_MAX/2-1]; - int a3= src[x + HTAPS_MAX/2+0]; - int a4= src[x + HTAPS_MAX/2+1]; - int a5= src[x + HTAPS_MAX/2+2]; - int a6= src[x + HTAPS_MAX/2+3]; - int am=0; - if(!p || p->fast_mc){ - am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); - tmpI[x]= am; - am= (am+16)>>5; - }else{ - am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6); - tmpI[x]= am; - am= (am+32)>>6; - } + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); + DWTELEM *src= buffer + (b-> buf - s->spatial_dwt_buffer); + assert(src == b->buf); // code does not depend on this but it is true currently - if(am&(~255)) am= ~(am>>31); - tmp2[x]= am; - } - tmpI+= 64; - tmp2+= stride; - src += stride; + quantize(s, b, dst, src, b->stride, s->qbias); } - src -= stride*y; } - src += HTAPS_MAX/2 - 1; - tmp2= tmp2t[1]; - - if(b&2){ - for(y=0; y < b_h; y++){ - for(x=0; x < b_w+1; x++){ - int a_1=src[x + (HTAPS_MAX/2-4)*stride]; - int a0= src[x + (HTAPS_MAX/2-3)*stride]; - int a1= src[x + (HTAPS_MAX/2-2)*stride]; - int a2= src[x + (HTAPS_MAX/2-1)*stride]; - int a3= src[x + (HTAPS_MAX/2+0)*stride]; - int a4= src[x + (HTAPS_MAX/2+1)*stride]; - int a5= src[x + (HTAPS_MAX/2+2)*stride]; - int a6= src[x + (HTAPS_MAX/2+3)*stride]; - int am=0; - if(!p || p->fast_mc) - am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5; - else - am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6; + for(pass=0; pass<1; pass++){ + if(s->qbias == 0) //keyframe + continue; + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + IDWTELEM *dst= idwt2_buffer + (b->ibuf - s->spatial_idwt_buffer); + IDWTELEM *best_dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); - if(am&(~255)) am= ~(am>>31); - tmp2[x]= am; - } - src += stride; - tmp2+= stride; - } - src -= stride*y; - } - src += stride*(HTAPS_MAX/2 - 1); - tmp2= tmp2t[2]; - tmpI= tmpIt; - if(b&4){ - for(y=0; y < b_h; y++){ - for(x=0; x < b_w; x++){ - int a_1=tmpI[x + (HTAPS_MAX/2-4)*64]; - int a0= tmpI[x + (HTAPS_MAX/2-3)*64]; - int a1= tmpI[x + (HTAPS_MAX/2-2)*64]; - int a2= tmpI[x + (HTAPS_MAX/2-1)*64]; - int a3= tmpI[x + (HTAPS_MAX/2+0)*64]; - int a4= tmpI[x + (HTAPS_MAX/2+1)*64]; - int a5= tmpI[x + (HTAPS_MAX/2+2)*64]; - int a6= tmpI[x + (HTAPS_MAX/2+3)*64]; - int am=0; - if(!p || p->fast_mc) - am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10; - else - am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12; - if(am&(~255)) am= ~(am>>31); - tmp2[x]= am; + for(ys= 0; ysspatial_decomposition_count); + find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); + memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); + for(y=ys; yheight; y+= Q2_STEP){ + for(x=xs; xwidth; x+= Q2_STEP){ + if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++; + if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--; + //FIXME try more than just -- + } + } + dequantize_all(s, p, idwt2_buffer, width, height); + ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); + find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); + for(y=ys; yheight; y+= Q2_STEP){ + for(x=xs; xwidth; x+= Q2_STEP){ + int score_idx= x/Q2_STEP + (y/Q2_STEP)*score_stride; + if(score[score_idx] <= best_score[score_idx] + threshold){ + best_score[score_idx]= score[score_idx]; + if(best_dst[x + y*b->stride]<0) best_dst[x + y*b->stride]++; + if(best_dst[x + y*b->stride]>0) best_dst[x + y*b->stride]--; + //FIXME copy instead + } + } + } + } + } } - tmpI+= 64; - tmp2+= stride; } } + memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end +} - hpel[ 0]= src; - hpel[ 1]= tmp2t[0] + stride*(HTAPS_MAX/2-1); - hpel[ 2]= src + 1; +#endif /* QUANTIZE2==1 */ - hpel[ 4]= tmp2t[1]; - hpel[ 5]= tmp2t[2]; - hpel[ 6]= tmp2t[1] + 1; +#define USE_HALFPEL_PLANE 0 - hpel[ 8]= src + stride; - hpel[ 9]= hpel[1] + stride; - hpel[10]= hpel[8] + 1; +static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){ + int p,x,y; - if(b==15){ - const uint8_t *src1= hpel[dx/8 + dy/8*4 ]; - const uint8_t *src2= hpel[dx/8 + dy/8*4+1]; - const uint8_t *src3= hpel[dx/8 + dy/8*4+4]; - const uint8_t *src4= hpel[dx/8 + dy/8*4+5]; - dx&=7; - dy&=7; - for(y=0; y < b_h; y++){ - for(x=0; x < b_w; x++){ - dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+ - (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6; - } - src1+=stride; - src2+=stride; - src3+=stride; - src4+=stride; - dst +=stride; - } - }else{ - const uint8_t *src1= hpel[l]; - const uint8_t *src2= hpel[r]; - int a= weight[((dx&7) + (8*(dy&7)))]; - int b= 8-a; - for(y=0; y < b_h; y++){ - for(x=0; x < b_w; x++){ - dst[x]= (a*src1[x] + b*src2[x] + 4)>>3; - } - src1+=stride; - src2+=stride; - dst +=stride; - } - } -} + assert(!(s->avctx->flags & CODEC_FLAG_EMU_EDGE)); -#define mca(dx,dy,b_w)\ -static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\ - uint8_t tmp[stride*(b_w+HTAPS_MAX-1)];\ - assert(h==b_w);\ - mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, tmp, stride, b_w, b_w, dx, dy);\ -} + for(p=0; p<3; p++){ + int is_chroma= !!p; + int w= s->avctx->width >>is_chroma; + int h= s->avctx->height >>is_chroma; + int ls= frame->linesize[p]; + uint8_t *src= frame->data[p]; -mca( 0, 0,16) -mca( 8, 0,16) -mca( 0, 8,16) -mca( 8, 8,16) -mca( 0, 0,8) -mca( 8, 0,8) -mca( 0, 8,8) -mca( 8, 8,8) + halfpel[1][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); + halfpel[2][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); + halfpel[3][p]= (uint8_t*)av_malloc(ls * (h+2*EDGE_WIDTH)) + EDGE_WIDTH*(1+ls); -static void pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){ - if(block->type & BLOCK_INTRA){ - int x, y; - const int color = block->color[plane_index]; - const int color4= color*0x01010101; - if(b_w==32){ - for(y=0; y < b_h; y++){ - *(uint32_t*)&dst[0 + y*stride]= color4; - *(uint32_t*)&dst[4 + y*stride]= color4; - *(uint32_t*)&dst[8 + y*stride]= color4; - *(uint32_t*)&dst[12+ y*stride]= color4; - *(uint32_t*)&dst[16+ y*stride]= color4; - *(uint32_t*)&dst[20+ y*stride]= color4; - *(uint32_t*)&dst[24+ y*stride]= color4; - *(uint32_t*)&dst[28+ y*stride]= color4; - } - }else if(b_w==16){ - for(y=0; y < b_h; y++){ - *(uint32_t*)&dst[0 + y*stride]= color4; - *(uint32_t*)&dst[4 + y*stride]= color4; - *(uint32_t*)&dst[8 + y*stride]= color4; - *(uint32_t*)&dst[12+ y*stride]= color4; - } - }else if(b_w==8){ - for(y=0; y < b_h; y++){ - *(uint32_t*)&dst[0 + y*stride]= color4; - *(uint32_t*)&dst[4 + y*stride]= color4; - } - }else if(b_w==4){ - for(y=0; y < b_h; y++){ - *(uint32_t*)&dst[0 + y*stride]= color4; - } - }else{ - for(y=0; y < b_h; y++){ - for(x=0; x < b_w; x++){ - dst[x + y*stride]= color; - } + halfpel[0][p]= src; + for(y=0; y>5; } } - }else{ - uint8_t *src= s->last_picture[block->ref].data[plane_index]; - const int scale= plane_index ? s->mv_scale : 2*s->mv_scale; - int mx= block->mx*scale; - int my= block->my*scale; - const int dx= mx&15; - const int dy= my&15; - const int tab_index= 3 - (b_w>>2) + (b_w>>4); - sx += (mx>>4) - (HTAPS_MAX/2-1); - sy += (my>>4) - (HTAPS_MAX/2-1); - src += sx + sy*stride; - if( (unsigned)sx >= w - b_w - (HTAPS_MAX-2) - || (unsigned)sy >= h - b_h - (HTAPS_MAX-2)){ - ff_emulated_edge_mc(tmp + MB_SIZE, src, stride, b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, sx, sy, w, h); - src= tmp + MB_SIZE; - } -// assert(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h); -// assert(!(b_w&(b_w-1))); - assert(b_w>1 && b_h>1); - assert((tab_index>=0 && tab_index<4) || b_w==32); - if((dx&3) || (dy&3) || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) || (b_w&(b_w-1)) || !s->plane[plane_index].fast_mc ) - mc_block(&s->plane[plane_index], dst, src, tmp, stride, b_w, b_h, dx, dy); - else if(b_w==32){ - int y; - for(y=0; ydsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride); - s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride); + for(y=0; y>5; } - }else if(b_w==b_h) - s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride); - else if(b_w==2*b_h){ - s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride); - s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride); - }else{ - assert(2*b_w==b_h); - s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride); - s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride); } - } -} - -void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, - int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){ - int y, x; - IDWTELEM * dst; - for(y=0; y>1); - const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); - const uint8_t *obmc4= obmc3+ (obmc_stride>>1); - dst = slice_buffer_get_line(sb, src_y + y); - for(x=0; x>= 8 - FRAC_BITS; - } - if(add){ - v += dst[x + src_x]; - v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst8[x + y*src_stride] = v; - }else{ - dst[x + src_x] -= v; + halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; } } - } -} - -//FIXME name cleanup (b_w, block_w, b_width stuff) -static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer *sb, IDWTELEM *dst, uint8_t *dst8, const uint8_t *obmc, int src_x, int src_y, int b_w, int b_h, int w, int h, int dst_stride, int src_stride, int obmc_stride, int b_x, int b_y, int add, int offset_dst, int plane_index){ - const int b_width = s->b_width << s->block_max_depth; - const int b_height= s->b_height << s->block_max_depth; - const int b_stride= b_width; - BlockNode *lt= &s->block[b_x + b_y*b_stride]; - BlockNode *rt= lt+1; - BlockNode *lb= lt+b_stride; - BlockNode *rb= lb+1; - uint8_t *block[4]; - int tmp_step= src_stride >= 7*MB_SIZE ? MB_SIZE : MB_SIZE*src_stride; - uint8_t *tmp = s->scratchbuf; - uint8_t *ptmp; - int x,y; - - if(b_x<0){ - lt= rt; - lb= rb; - }else if(b_x + 1 >= b_width){ - rt= lt; - rb= lb; - } - if(b_y<0){ - lt= lb; - rt= rb; - }else if(b_y + 1 >= b_height){ - lb= lt; - rb= rt; - } - if(src_x<0){ //FIXME merge with prev & always round internal width up to *16 - obmc -= src_x; - b_w += src_x; - if(!sliced && !offset_dst) - dst -= src_x; - src_x=0; - }else if(src_x + b_w > w){ - b_w = w - src_x; - } - if(src_y<0){ - obmc -= src_y*obmc_stride; - b_h += src_y; - if(!sliced && !offset_dst) - dst -= src_y*dst_stride; - src_y=0; - }else if(src_y + b_h> h){ - b_h = h - src_y; +//FIXME border! } +} - if(b_w<=0 || b_h<=0) return; - - assert(src_stride > 2*MB_SIZE + 5); +static void release_buffer(AVCodecContext *avctx){ + SnowContext *s = avctx->priv_data; + int i; - if(!sliced && offset_dst) - dst += src_x + src_y*dst_stride; - dst8+= src_x + src_y*src_stride; -// src += src_x + src_y*src_stride; + if(s->last_picture[s->max_ref_frames-1].data[0]){ + avctx->release_buffer(avctx, &s->last_picture[s->max_ref_frames-1]); + for(i=0; i<9; i++) + if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) + av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture.linesize[i%3])); + } +} - ptmp= tmp + 3*tmp_step; - block[0]= ptmp; - ptmp+=tmp_step; - pred_block(s, block[0], tmp, src_stride, src_x, src_y, b_w, b_h, lt, plane_index, w, h); +static int frame_start(SnowContext *s){ + AVFrame tmp; + int w= s->avctx->width; //FIXME round up to x16 ? + int h= s->avctx->height; - if(same_block(lt, rt)){ - block[1]= block[0]; - }else{ - block[1]= ptmp; - ptmp+=tmp_step; - pred_block(s, block[1], tmp, src_stride, src_x, src_y, b_w, b_h, rt, plane_index, w, h); + if(s->current_picture.data[0]){ + s->dsp.draw_edges(s->current_picture.data[0], + s->current_picture.linesize[0], w , h , + EDGE_WIDTH , EDGE_WIDTH , EDGE_TOP | EDGE_BOTTOM); + s->dsp.draw_edges(s->current_picture.data[1], + s->current_picture.linesize[1], w>>1, h>>1, + EDGE_WIDTH/2, EDGE_WIDTH/2, EDGE_TOP | EDGE_BOTTOM); + s->dsp.draw_edges(s->current_picture.data[2], + s->current_picture.linesize[2], w>>1, h>>1, + EDGE_WIDTH/2, EDGE_WIDTH/2, EDGE_TOP | EDGE_BOTTOM); } - if(same_block(lt, lb)){ - block[2]= block[0]; - }else if(same_block(rt, lb)){ - block[2]= block[1]; - }else{ - block[2]= ptmp; - ptmp+=tmp_step; - pred_block(s, block[2], tmp, src_stride, src_x, src_y, b_w, b_h, lb, plane_index, w, h); - } + release_buffer(s->avctx); - if(same_block(lt, rb) ){ - block[3]= block[0]; - }else if(same_block(rt, rb)){ - block[3]= block[1]; - }else if(same_block(lb, rb)){ - block[3]= block[2]; + tmp= s->last_picture[s->max_ref_frames-1]; + memmove(s->last_picture+1, s->last_picture, (s->max_ref_frames-1)*sizeof(AVFrame)); + memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4); + if(USE_HALFPEL_PLANE && s->current_picture.data[0]) + halfpel_interpol(s, s->halfpel_plane[0], &s->current_picture); + s->last_picture[0]= s->current_picture; + s->current_picture= tmp; + + if(s->keyframe){ + s->ref_frames= 0; }else{ - block[3]= ptmp; - pred_block(s, block[3], tmp, src_stride, src_x, src_y, b_w, b_h, rb, plane_index, w, h); - } -#if 0 - for(y=0; y>1); - for(x=0; x>1); - for(x=0; x>1); - uint8_t *obmc4= obmc3+ (obmc_stride>>1); - for(x=0; xmax_ref_frames && s->last_picture[i].data[0]; i++) + if(i && s->last_picture[i-1].key_frame) + break; + s->ref_frames= i; + if(s->ref_frames==0){ + av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n"); + return -1; } } -#else - if(sliced){ - s->dsp.inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8); - }else{ - for(y=0; y>1); - const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); - const uint8_t *obmc4= obmc3+ (obmc_stride>>1); - for(x=0; x>= 8 - FRAC_BITS; - } - if(add){ - v += dst[x + y*dst_stride]; - v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst8[x + y*src_stride] = v; - }else{ - dst[x + y*dst_stride] -= v; - } - } - } + s->current_picture.reference= 1; + if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ + av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; } -#endif /* 0 */ + + s->current_picture.key_frame= s->keyframe; + + return 0; } -static av_always_inline void predict_slice_buffered(SnowContext *s, slice_buffer * sb, IDWTELEM * old_buffer, int plane_index, int add, int mb_y){ - Plane *p= &s->plane[plane_index]; - const int mb_w= s->b_width << s->block_max_depth; - const int mb_h= s->b_height << s->block_max_depth; - int x, y, mb_x; - int block_size = MB_SIZE >> s->block_max_depth; - int block_w = plane_index ? block_size/2 : block_size; - const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; - int obmc_stride= plane_index ? block_size : 2*block_size; - int ref_stride= s->current_picture.linesize[plane_index]; - uint8_t *dst8= s->current_picture.data[plane_index]; - int w= p->width; - int h= p->height; +static av_cold void common_end(SnowContext *s){ + int plane_index, level, orientation, i; - if(s->keyframe || (s->avctx->debug&512)){ - if(mb_y==mb_h) - return; + av_freep(&s->spatial_dwt_buffer); + av_freep(&s->spatial_idwt_buffer); - if(add){ - for(y=block_w*mb_y; yline[y]; - for(x=0; x>= FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst8[x + y*ref_stride]= v; - } - } - }else{ - for(y=block_w*mb_y; yline[y]; - for(x=0; xm.me.temp= NULL; + av_freep(&s->m.me.scratchpad); + av_freep(&s->m.me.map); + av_freep(&s->m.me.score_map); + av_freep(&s->m.obmc_scratchpad); - return; + av_freep(&s->block); + av_freep(&s->scratchbuf); + + for(i=0; iref_mvs[i]); + av_freep(&s->ref_scores[i]); + if(s->last_picture[i].data[0]) + s->avctx->release_buffer(s->avctx, &s->last_picture[i]); } - for(mb_x=0; mb_x<=mb_w; mb_x++){ - add_yblock(s, 1, sb, old_buffer, dst8, obmc, - block_w*mb_x - block_w/2, - block_w*mb_y - block_w/2, - block_w, block_w, - w, h, - w, ref_stride, obmc_stride, - mb_x - 1, mb_y - 1, - add, 0, plane_index); + for(plane_index=0; plane_index<3; plane_index++){ + for(level=s->spatial_decomposition_count-1; level>=0; level--){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &s->plane[plane_index].band[level][orientation]; + + av_freep(&b->x_coeff); + } + } } + if (s->mconly_picture.data[0]) + s->avctx->release_buffer(s->avctx, &s->mconly_picture); + if (s->current_picture.data[0]) + s->avctx->release_buffer(s->avctx, &s->current_picture); } -static av_always_inline void predict_slice(SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y){ - Plane *p= &s->plane[plane_index]; - const int mb_w= s->b_width << s->block_max_depth; - const int mb_h= s->b_height << s->block_max_depth; - int x, y, mb_x; - int block_size = MB_SIZE >> s->block_max_depth; - int block_w = plane_index ? block_size/2 : block_size; - const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; - const int obmc_stride= plane_index ? block_size : 2*block_size; - int ref_stride= s->current_picture.linesize[plane_index]; - uint8_t *dst8= s->current_picture.data[plane_index]; - int w= p->width; - int h= p->height; +static av_cold int decode_init(AVCodecContext *avctx) +{ + avctx->pix_fmt= PIX_FMT_YUV420P; - if(s->keyframe || (s->avctx->debug&512)){ - if(mb_y==mb_h) - return; + common_init(avctx); - if(add){ - for(y=block_w*mb_y; y>= FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst8[x + y*ref_stride]= v; - } - } - }else{ - for(y=block_w*mb_y; ydata; + int buf_size = avpkt->size; + SnowContext *s = avctx->priv_data; + RangeCoder * const c= &s->c; + int bytes_read; + AVFrame *picture = data; + int level, orientation, plane_index; + + ff_init_range_decoder(c, buf, buf_size); + ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); + + s->current_picture.pict_type= AV_PICTURE_TYPE_I; //FIXME I vs. P + if(decode_header(s)<0) + return -1; + common_init_after_header(avctx); + + // realloc slice buffer for the case that spatial_decomposition_count changed + ff_slice_buffer_destroy(&s->sb); + ff_slice_buffer_init(&s->sb, s->plane[0].height, (MB_SIZE >> s->block_max_depth) + s->spatial_decomposition_count * 8 + 1, s->plane[0].width, s->spatial_idwt_buffer); - for(mb_x=0; mb_x<=mb_w; mb_x++){ - add_yblock(s, 0, NULL, buf, dst8, obmc, - block_w*mb_x - block_w/2, - block_w*mb_y - block_w/2, - block_w, block_w, - w, h, - w, ref_stride, obmc_stride, - mb_x - 1, mb_y - 1, - add, 1, plane_index); + for(plane_index=0; plane_index<3; plane_index++){ + Plane *p= &s->plane[plane_index]; + p->fast_mc= p->diag_mc && p->htaps==6 && p->hcoeff[0]==40 + && p->hcoeff[1]==-10 + && p->hcoeff[2]==2; } -} -static av_always_inline void predict_plane(SnowContext *s, IDWTELEM *buf, int plane_index, int add){ - const int mb_h= s->b_height << s->block_max_depth; - int mb_y; - for(mb_y=0; mb_y<=mb_h; mb_y++) - predict_slice(s, buf, plane_index, add, mb_y); -} - -static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){ - int i, x2, y2; - Plane *p= &s->plane[plane_index]; - const int block_size = MB_SIZE >> s->block_max_depth; - const int block_w = plane_index ? block_size/2 : block_size; - const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; - const int obmc_stride= plane_index ? block_size : 2*block_size; - const int ref_stride= s->current_picture.linesize[plane_index]; - uint8_t *src= s-> input_picture.data[plane_index]; - IDWTELEM *dst= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned - const int b_stride = s->b_width << s->block_max_depth; - const int w= p->width; - const int h= p->height; - int index= mb_x + mb_y*b_stride; - BlockNode *b= &s->block[index]; - BlockNode backup= *b; - int ab=0; - int aa=0; + alloc_blocks(s); - b->type|= BLOCK_INTRA; - b->color[plane_index]= 0; - memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM)); + if(frame_start(s) < 0) + return -1; + //keyframe flag duplication mess FIXME + if(avctx->debug&FF_DEBUG_PICT_INFO) + av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); - for(i=0; i<4; i++){ - int mb_x2= mb_x + (i &1) - 1; - int mb_y2= mb_y + (i>>1) - 1; - int x= block_w*mb_x2 + block_w/2; - int y= block_w*mb_y2 + block_w/2; + decode_blocks(s); - add_yblock(s, 0, NULL, dst + ((i&1)+(i>>1)*obmc_stride)*block_w, NULL, obmc, - x, y, block_w, block_w, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index); + for(plane_index=0; plane_index<3; plane_index++){ + Plane *p= &s->plane[plane_index]; + int w= p->width; + int h= p->height; + int x, y; + int decode_state[MAX_DECOMPOSITIONS][4][1]; /* Stored state info for unpack_coeffs. 1 variable per instance. */ - for(y2= FFMAX(y, 0); y2h) obmc_v += obmc[index - block_w*obmc_stride]; - if(x+block_w>w) obmc_v += obmc[index - block_w]; - //FIXME precalculate this or simplify it somehow else + if(s->avctx->debug&2048){ + memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); + predict_plane(s, s->spatial_idwt_buffer, plane_index, 1); - d = -dst[index] + (1<<(FRAC_BITS-1)); - dst[index] = d; - ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v; - aa += obmc_v * obmc_v; //FIXME precalculate this + for(y=0; ycurrent_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]; + s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; + } } } - } - *b= backup; - return av_clip(((ab<spatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + unpack_coeffs(s, b, b->parent, orientation); + } + } + } -static inline int get_block_bits(SnowContext *s, int x, int y, int w){ - const int b_stride = s->b_width << s->block_max_depth; - const int b_height = s->b_height<< s->block_max_depth; - int index= x + y*b_stride; - const BlockNode *b = &s->block[index]; - const BlockNode *left = x ? &s->block[index-1] : &null_block; - const BlockNode *top = y ? &s->block[index-b_stride] : &null_block; - const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left; - const BlockNode *tr = y && x+wblock[index-b_stride+w] : tl; - int dmx, dmy; -// int mx_context= av_log2(2*FFABS(left->mx - top->mx)); -// int my_context= av_log2(2*FFABS(left->my - top->my)); + { + const int mb_h= s->b_height << s->block_max_depth; + const int block_size = MB_SIZE >> s->block_max_depth; + const int block_w = plane_index ? block_size/2 : block_size; + int mb_y; + DWTCompose cs[MAX_DECOMPOSITIONS]; + int yd=0, yq=0; + int y; + int end_y; - if(x<0 || x>=b_stride || y>=b_height) - return 0; -/* -1 0 0 -01X 1-2 1 -001XX 3-6 2-3 -0001XXX 7-14 4-7 -00001XXXX 15-30 8-15 -*/ -//FIXME try accurate rate -//FIXME intra and inter predictors if surrounding blocks are not the same type - if(b->type & BLOCK_INTRA){ - return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0])) - + av_log2(2*FFABS(left->color[1] - b->color[1])) - + av_log2(2*FFABS(left->color[2] - b->color[2]))); - }else{ - pred_mv(s, &dmx, &dmy, b->ref, left, top, tr); - dmx-= b->mx; - dmy-= b->my; - return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda - + av_log2(2*FFABS(dmy)) - + av_log2(2*b->ref)); - } -} + ff_spatial_idwt_buffered_init(cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count); + for(mb_y=0; mb_y<=mb_h; mb_y++){ -static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, const uint8_t *obmc_edged){ - Plane *p= &s->plane[plane_index]; - const int block_size = MB_SIZE >> s->block_max_depth; - const int block_w = plane_index ? block_size/2 : block_size; - const int obmc_stride= plane_index ? block_size : 2*block_size; - const int ref_stride= s->current_picture.linesize[plane_index]; - uint8_t *dst= s->current_picture.data[plane_index]; - uint8_t *src= s-> input_picture.data[plane_index]; - IDWTELEM *pred= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; - uint8_t *cur = s->scratchbuf; - uint8_t tmp[ref_stride*(2*MB_SIZE+HTAPS_MAX-1)]; - const int b_stride = s->b_width << s->block_max_depth; - const int b_height = s->b_height<< s->block_max_depth; - const int w= p->width; - const int h= p->height; - int distortion; - int rate= 0; - const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); - int sx= block_w*mb_x - block_w/2; - int sy= block_w*mb_y - block_w/2; - int x0= FFMAX(0,-sx); - int y0= FFMAX(0,-sy); - int x1= FFMIN(block_w*2, w-sx); - int y1= FFMIN(block_w*2, h-sy); - int i,x,y; + int slice_starty = block_w*mb_y; + int slice_h = block_w*(mb_y+1); + if (!(s->keyframe || s->avctx->debug&512)){ + slice_starty = FFMAX(0, slice_starty - (block_w >> 1)); + slice_h -= (block_w >> 1); + } - pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_w*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h); + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + int start_y; + int end_y; + int our_mb_start = mb_y; + int our_mb_end = (mb_y + 1); + const int extra= 3; + start_y = (mb_y ? ((block_w * our_mb_start) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra: 0); + end_y = (((block_w * our_mb_end) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra); + if (!(s->keyframe || s->avctx->debug&512)){ + start_y = FFMAX(0, start_y - (block_w >> (1+s->spatial_decomposition_count - level))); + end_y = FFMAX(0, end_y - (block_w >> (1+s->spatial_decomposition_count - level))); + } + start_y = FFMIN(b->height, start_y); + end_y = FFMIN(b->height, end_y); - for(y=y0; y= LOG2_OBMC_MAX - int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX); -#else - int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS); -#endif - v = (v + pred1[x]) >> FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst1[x] = v; - } - } + if (start_y != end_y){ + if (orientation == 0){ + SubBand * correlate_band = &p->band[0][0]; + int correlate_end_y = FFMIN(b->height, end_y + 1); + int correlate_start_y = FFMIN(b->height, (start_y ? start_y + 1 : 0)); + decode_subband_slice_buffered(s, correlate_band, &s->sb, correlate_start_y, correlate_end_y, decode_state[0][0]); + correlate_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, 1, 0, correlate_start_y, correlate_end_y); + dequantize_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, start_y, end_y); + } + else + decode_subband_slice_buffered(s, b, &s->sb, start_y, end_y, decode_state[level][orientation]); + } + } + } - /* copy the regions where obmc[] = (uint8_t)256 */ - if(LOG2_OBMC_MAX == 8 - && (mb_x == 0 || mb_x == b_stride-1) - && (mb_y == 0 || mb_y == b_height-1)){ - if(mb_x == 0) - x1 = block_w; - else - x0 = block_w; - if(mb_y == 0) - y1 = block_w; - else - y0 = block_w; - for(y=y0; ydwt, cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd); + } - if(block_w==16){ - /* FIXME rearrange dsputil to fit 32x32 cmp functions */ - /* FIXME check alignment of the cmp wavelet vs the encoding wavelet */ - /* FIXME cmps overlap but do not cover the wavelet's whole support. - * So improving the score of one block is not strictly guaranteed - * to improve the score of the whole frame, thus iterative motion - * estimation does not always converge. */ - if(s->avctx->me_cmp == FF_CMP_W97) - distortion = w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32); - else if(s->avctx->me_cmp == FF_CMP_W53) - distortion = w53_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32); - else{ - distortion = 0; - for(i=0; i<4; i++){ - int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride; - distortion += s->dsp.me_cmp[0](&s->m, src + off, dst + off, ref_stride, 16); + if(s->qlog == LOSSLESS_QLOG){ + for(; yqsb, yq); + for(x=0; xsb, s->spatial_idwt_buffer, plane_index, 1, mb_y); + + y = FFMIN(p->height, slice_starty); + end_y = FFMIN(p->height, slice_h); + while(y < end_y) + ff_slice_buffer_release(&s->sb, y++); } - }else{ - assert(block_w==8); - distortion = s->dsp.me_cmp[0](&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2); - } - if(plane_index==0){ - for(i=0; i<4; i++){ -/* ..RRr - * .RXx. - * rxx.. - */ - rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1); + ff_slice_buffer_flush(&s->sb); } - if(mb_x == b_stride-2) - rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1); + } - return distortion + rate*penalty_factor; + + emms_c(); + + release_buffer(avctx); + + if(!(s->avctx->debug&2048)) + *picture= s->current_picture; + else + *picture= s->mconly_picture; + + *data_size = sizeof(AVFrame); + + bytes_read= c->bytestream - c->bytestream_start; + if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); //FIXME + + return bytes_read; } -static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){ - int i, y2; - Plane *p= &s->plane[plane_index]; - const int block_size = MB_SIZE >> s->block_max_depth; - const int block_w = plane_index ? block_size/2 : block_size; - const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; - const int obmc_stride= plane_index ? block_size : 2*block_size; - const int ref_stride= s->current_picture.linesize[plane_index]; - uint8_t *dst= s->current_picture.data[plane_index]; - uint8_t *src= s-> input_picture.data[plane_index]; - //FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst - // const has only been removed from zero_dst to suppress a warning - static IDWTELEM zero_dst[4096]; //FIXME - const int b_stride = s->b_width << s->block_max_depth; - const int w= p->width; - const int h= p->height; - int distortion= 0; - int rate= 0; - const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); +static av_cold int decode_end(AVCodecContext *avctx) +{ + SnowContext *s = avctx->priv_data; - for(i=0; i<9; i++){ - int mb_x2= mb_x + (i%3) - 1; - int mb_y2= mb_y + (i/3) - 1; - int x= block_w*mb_x2 + block_w/2; - int y= block_w*mb_y2 + block_w/2; + ff_slice_buffer_destroy(&s->sb); - add_yblock(s, 0, NULL, zero_dst, dst, obmc, - x, y, block_w, block_w, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index); + common_end(s); - //FIXME find a cleaner/simpler way to skip the outside stuff - for(y2= y; y2<0; y2++) - memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w); - for(y2= h; y2 w){ - for(y2= y; y2dsp.me_cmp[block_w==8](&s->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_w); - } +AVCodec ff_snow_decoder = { + "snow", + AVMEDIA_TYPE_VIDEO, + CODEC_ID_SNOW, + sizeof(SnowContext), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1 /*| CODEC_CAP_DRAW_HORIZ_BAND*/, + NULL, + .long_name = NULL_IF_CONFIG_SMALL("Snow"), +}; - if(plane_index==0){ - BlockNode *b= &s->block[mb_x+mb_y*b_stride]; - int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1); +#if CONFIG_SNOW_ENCODER +static av_cold int encode_init(AVCodecContext *avctx) +{ + SnowContext *s = avctx->priv_data; + int plane_index; -/* ..RRRr - * .RXXx. - * .RXXx. - * rxxx. - */ - if(merged) - rate = get_block_bits(s, mb_x, mb_y, 2); - for(i=merged?4:0; i<9; i++){ - static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}}; - rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1); - } + if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ + av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n" + "Use vstrict=-2 / -strict -2 to use it anyway.\n"); + return -1; } - return distortion + rate*penalty_factor; -} -static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int p[3], int intra, const uint8_t *obmc_edged, int *best_rd){ - const int b_stride= s->b_width << s->block_max_depth; - BlockNode *block= &s->block[mb_x + mb_y * b_stride]; - BlockNode backup= *block; - int rd, index, value; + if(avctx->prediction_method == DWT_97 + && (avctx->flags & CODEC_FLAG_QSCALE) + && avctx->global_quality == 0){ + av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n"); + return -1; + } - assert(mb_x>=0 && mb_y>=0); - assert(mb_xspatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type - if(intra){ - block->color[0] = p[0]; - block->color[1] = p[1]; - block->color[2] = p[2]; - block->type |= BLOCK_INTRA; - }else{ - index= (p[0] + 31*p[1]) & (ME_CACHE_SIZE-1); - value= s->me_cache_generation + (p[0]>>10) + (p[1]<<6) + (block->ref<<12); - if(s->me_cache[index] == value) - return 0; - s->me_cache[index]= value; + s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; + s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0; - block->mx= p[0]; - block->my= p[1]; - block->type &= ~BLOCK_INTRA; + for(plane_index=0; plane_index<3; plane_index++){ + s->plane[plane_index].diag_mc= 1; + s->plane[plane_index].htaps= 6; + s->plane[plane_index].hcoeff[0]= 40; + s->plane[plane_index].hcoeff[1]= -10; + s->plane[plane_index].hcoeff[2]= 2; + s->plane[plane_index].fast_mc= 1; } - rd= get_block_rd(s, mb_x, mb_y, 0, obmc_edged); + common_init(avctx); + alloc_blocks(s); -//FIXME chroma - if(rd < *best_rd){ - *best_rd= rd; - return 1; - }else{ - *block= backup; - return 0; + s->version=0; + + s->m.avctx = avctx; + s->m.flags = avctx->flags; + s->m.bit_rate= avctx->bit_rate; + + s->m.me.temp = + s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); + s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); + s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); + s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t)); + h263_encode_init(&s->m); //mv_penalty + + s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1); + + if(avctx->flags&CODEC_FLAG_PASS1){ + if(!avctx->stats_out) + avctx->stats_out = av_mallocz(256); } -} + if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){ + if(ff_rate_control_init(&s->m) < 0) + return -1; + } + s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2)); -/* special case for int[2] args we discard afterwards, - * fixes compilation problem with gcc 2.95 */ -static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd){ - int p[2] = {p0, p1}; - return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd); -} + avctx->coded_frame= &s->current_picture; + switch(avctx->pix_fmt){ +// case PIX_FMT_YUV444P: +// case PIX_FMT_YUV422P: + case PIX_FMT_YUV420P: + case PIX_FMT_GRAY8: +// case PIX_FMT_YUV411P: +// case PIX_FMT_YUV410P: + s->colorspace_type= 0; + break; +/* case PIX_FMT_RGB32: + s->colorspace= 1; + break;*/ + default: + av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n"); + return -1; + } +// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); + s->chroma_h_shift= 1; + s->chroma_v_shift= 1; -static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd){ - const int b_stride= s->b_width << s->block_max_depth; - BlockNode *block= &s->block[mb_x + mb_y * b_stride]; - BlockNode backup[4]= {block[0], block[1], block[b_stride], block[b_stride+1]}; - int rd, index, value; + ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp); + ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp); - assert(mb_x>=0 && mb_y>=0); - assert(mb_xavctx->get_buffer(s->avctx, &s->input_picture); - index= (p0 + 31*p1) & (ME_CACHE_SIZE-1); - value= s->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12); - if(s->me_cache[index] == value) - return 0; - s->me_cache[index]= value; + if(s->avctx->me_method == ME_ITER){ + int i; + int size= s->b_width * s->b_height << 2*s->block_max_depth; + for(i=0; imax_ref_frames; i++){ + s->ref_mvs[i]= av_mallocz(size*sizeof(int16_t[2])); + s->ref_scores[i]= av_mallocz(size*sizeof(uint32_t)); + } + } - block->mx= p0; - block->my= p1; - block->ref= ref; - block->type &= ~BLOCK_INTRA; - block[1]= block[b_stride]= block[b_stride+1]= *block; + return 0; +} - rd= get_4block_rd(s, mb_x, mb_y, 0); +//near copy & paste from dsputil, FIXME +static int pix_sum(uint8_t * pix, int line_size, int w) +{ + int s, i, j; -//FIXME chroma - if(rd < *best_rd){ - *best_rd= rd; - return 1; - }else{ - block[0]= backup[0]; - block[1]= backup[1]; - block[b_stride]= backup[2]; - block[b_stride+1]= backup[3]; - return 0; + s = 0; + for (i = 0; i < w; i++) { + for (j = 0; j < w; j++) { + s += pix[0]; + pix ++; + } + pix += line_size - w; } + return s; } -static void iterative_me(SnowContext *s){ - int pass, mb_x, mb_y; - const int b_width = s->b_width << s->block_max_depth; - const int b_height= s->b_height << s->block_max_depth; - const int b_stride= b_width; - int color[3]; +//near copy & paste from dsputil, FIXME +static int pix_norm1(uint8_t * pix, int line_size, int w) +{ + int s, i, j; + uint32_t *sq = ff_squareTbl + 256; - { - RangeCoder r = s->c; - uint8_t state[sizeof(s->block_state)]; - memcpy(state, s->block_state, sizeof(s->block_state)); - for(mb_y= 0; mb_yb_height; mb_y++) - for(mb_x= 0; mb_xb_width; mb_x++) - encode_q_branch(s, 0, mb_x, mb_y); - s->c = r; - memcpy(s->block_state, state, sizeof(s->block_state)); + s = 0; + for (i = 0; i < w; i++) { + for (j = 0; j < w; j ++) { + s += sq[pix[0]]; + pix ++; + } + pix += line_size - w; } + return s; +} - for(pass=0; pass<25; pass++){ - int change= 0; +//FIXME copy&paste +#define P_LEFT P[1] +#define P_TOP P[2] +#define P_TOPRIGHT P[3] +#define P_MEDIAN P[4] +#define P_MV1 P[9] +#define FLAG_QPEL 1 //must be 1 - for(mb_y= 0; mb_yblock[index]; - BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL; - BlockNode *lb = mb_x ? &s->block[index -1] : NULL; - BlockNode *rb = mb_x+1block[index +1] : NULL; - BlockNode *bb = mb_y+1block[index+b_stride ] : NULL; - BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL; - BlockNode *trb= mb_x+1block[index-b_stride+1] : NULL; - BlockNode *blb= mb_x && mb_y+1block[index+b_stride-1] : NULL; - BlockNode *brb= mb_x+1block[index+b_stride+1] : NULL; - const int b_w= (MB_SIZE >> s->block_max_depth); - uint8_t obmc_edged[b_w*2][b_w*2]; +static int encode_q_branch(SnowContext *s, int level, int x, int y){ + uint8_t p_buffer[1024]; + uint8_t i_buffer[1024]; + uint8_t p_state[sizeof(s->block_state)]; + uint8_t i_state[sizeof(s->block_state)]; + RangeCoder pc, ic; + uint8_t *pbbak= s->c.bytestream; + uint8_t *pbbak_start= s->c.bytestream_start; + int score, score2, iscore, i_len, p_len, block_s, sum, base_bits; + const int w= s->b_width << s->block_max_depth; + const int h= s->b_height << s->block_max_depth; + const int rem_depth= s->block_max_depth - level; + const int index= (x + y*w) << rem_depth; + const int block_w= 1<<(LOG2_MB_SIZE - level); + int trx= (x+1)<block[index-1] : &null_block; + const BlockNode *top = y ? &s->block[index-w] : &null_block; + const BlockNode *right = trxblock[index+1] : &null_block; + const BlockNode *bottom= tryblock[index+w] : &null_block; + const BlockNode *tl = y && x ? &s->block[index-w-1] : left; + const BlockNode *tr = y && trxblock[index-w+(1<color[0]; + int pcb= left->color[1]; + int pcr= left->color[2]; + int pmx, pmy; + int mx=0, my=0; + int l,cr,cb; + const int stride= s->current_picture.linesize[0]; + const int uvstride= s->current_picture.linesize[1]; + uint8_t *current_data[3]= { s->input_picture.data[0] + (x + y* stride)*block_w, + s->input_picture.data[1] + (x + y*uvstride)*block_w/2, + s->input_picture.data[2] + (x + y*uvstride)*block_w/2}; + int P[10][2]; + int16_t last_mv[3][2]; + int qpel= !!(s->avctx->flags & CODEC_FLAG_QPEL); //unused + const int shift= 1+qpel; + MotionEstContext *c= &s->m.me; + int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); + int mx_context= av_log2(2*FFABS(left->mx - top->mx)); + int my_context= av_log2(2*FFABS(left->my - top->my)); + int s_context= 2*left->level + 2*top->level + tl->level + tr->level; + int ref, best_ref, ref_score, ref_mx, ref_my; - if(pass && (block->type & BLOCK_OPT)) - continue; - block->type |= BLOCK_OPT; + assert(sizeof(s->block_state) >= 256); + if(s->keyframe){ + set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); + return 0; + } - backup= *block; +// clip predictors / edge ? - if(!s->me_cache_generation) - memset(s->me_cache, 0, sizeof(s->me_cache)); - s->me_cache_generation += 1<<22; + P_LEFT[0]= left->mx; + P_LEFT[1]= left->my; + P_TOP [0]= top->mx; + P_TOP [1]= top->my; + P_TOPRIGHT[0]= tr->mx; + P_TOPRIGHT[1]= tr->my; - //FIXME precalculate - { - int x, y; - memcpy(obmc_edged, obmc_tab[s->block_max_depth], b_w*b_w*4); - if(mb_x==0) - for(y=0; yblock[index].mx; + last_mv[0][1]= s->block[index].my; + last_mv[1][0]= right->mx; + last_mv[1][1]= right->my; + last_mv[2][0]= bottom->mx; + last_mv[2][1]= bottom->my; - //skip stuff outside the picture - if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){ - uint8_t *src= s-> input_picture.data[0]; - uint8_t *dst= s->current_picture.data[0]; - const int stride= s->current_picture.linesize[0]; - const int block_w= MB_SIZE >> s->block_max_depth; - const int sx= block_w*mb_x - block_w/2; - const int sy= block_w*mb_y - block_w/2; - const int w= s->plane[0].width; - const int h= s->plane[0].height; - int y; + s->m.mb_stride=2; + s->m.mb_x= + s->m.mb_y= 0; + c->skip= 0; - for(y=sy; y<0; y++) - memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2); - for(y=h; y w){ - for(y=sy; y stride == stride); + assert(c->uvstride == uvstride); - // intra(black) = neighbors' contribution to the current block - for(i=0; i<3; i++) - color[i]= get_dc(s, mb_x, mb_y, i); + c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp); + c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp); + c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp); + c->current_mv_penalty= c->mv_penalty[s->m.f_code=1] + MAX_MV; - // get previous score (cannot be cached due to OBMC) - if(pass > 0 && (block->type&BLOCK_INTRA)){ - int color0[3]= {block->color[0], block->color[1], block->color[2]}; - check_block(s, mb_x, mb_y, color0, 1, *obmc_edged, &best_rd); - }else - check_block_inter(s, mb_x, mb_y, block->mx, block->my, *obmc_edged, &best_rd); + c->xmin = - x*block_w - 16+3; + c->ymin = - y*block_w - 16+3; + c->xmax = - (x+1)*block_w + (w<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3; + c->ymax = - (y+1)*block_w + (h<<(LOG2_MB_SIZE - s->block_max_depth)) + 16-3; - ref_b= *block; - ref_rd= best_rd; - for(ref=0; ref < s->ref_frames; ref++){ - int16_t (*mvr)[2]= &s->ref_mvs[ref][index]; - if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold - continue; - block->ref= ref; - best_rd= INT_MAX; + if(P_LEFT[0] > (c->xmax<xmax< (c->ymax<ymax< (c->xmax<xmax< (c->ymax<ymax<xmin<xmin< (c->xmax<xmax< (c->ymax<ymax<avctx->dia_size, 1); i++){ - for(j=0; jmx+4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); - dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); - dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); - dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); - } - } - }while(dia_change); - /* subpel ME */ - do{ - static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},}; - dia_change=0; - for(i=0; i<8; i++) - dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], *obmc_edged, &best_rd); - }while(dia_change); - //FIXME or try the standard 2 pass qpel or similar + if (!y) { + c->pred_x= P_LEFT[0]; + c->pred_y= P_LEFT[1]; + } else { + c->pred_x = P_MEDIAN[0]; + c->pred_y = P_MEDIAN[1]; + } - mvr[0][0]= block->mx; - mvr[0][1]= block->my; - if(ref_rd > best_rd){ - ref_rd= best_rd; - ref_b= *block; - } - } - best_rd= ref_rd; - *block= ref_b; -#if 1 - check_block(s, mb_x, mb_y, color, 1, *obmc_edged, &best_rd); - //FIXME RD style color selection -#endif - if(!same_block(block, &backup)){ - if(tb ) tb ->type &= ~BLOCK_OPT; - if(lb ) lb ->type &= ~BLOCK_OPT; - if(rb ) rb ->type &= ~BLOCK_OPT; - if(bb ) bb ->type &= ~BLOCK_OPT; - if(tlb) tlb->type &= ~BLOCK_OPT; - if(trb) trb->type &= ~BLOCK_OPT; - if(blb) blb->type &= ~BLOCK_OPT; - if(brb) brb->type &= ~BLOCK_OPT; - change ++; - } - } + score= INT_MAX; + best_ref= 0; + for(ref=0; refref_frames; ref++){ + init_ref(c, current_data, s->last_picture[ref].data, NULL, block_w*x, block_w*y, 0); + + ref_score= ff_epzs_motion_search(&s->m, &ref_mx, &ref_my, P, 0, /*ref_index*/ 0, last_mv, + (1<<16)>>shift, level-LOG2_MB_SIZE+4, block_w); + + assert(ref_mx >= c->xmin); + assert(ref_mx <= c->xmax); + assert(ref_my >= c->ymin); + assert(ref_my <= c->ymax); + + ref_score= c->sub_motion_search(&s->m, &ref_mx, &ref_my, ref_score, 0, 0, level-LOG2_MB_SIZE+4, block_w); + ref_score= ff_get_mb_score(&s->m, ref_mx, ref_my, 0, 0, level-LOG2_MB_SIZE+4, block_w, 0); + ref_score+= 2*av_log2(2*ref)*c->penalty_factor; + if(s->ref_mvs[ref]){ + s->ref_mvs[ref][index][0]= ref_mx; + s->ref_mvs[ref][index][1]= ref_my; + s->ref_scores[ref][index]= ref_score; + } + if(score > ref_score){ + score= ref_score; + best_ref= ref; + mx= ref_mx; + my= ref_my; } - av_log(NULL, AV_LOG_ERROR, "pass:%d changed:%d\n", pass, change); - if(!change) - break; } + //FIXME if mb_cmp != SSE then intra cannot be compared currently and mb_penalty vs. lambda2 - if(s->block_max_depth == 1){ - int change= 0; - for(mb_y= 0; mb_yc) - 8*(s->c.bytestream - s->c.bytestream_start); + pc= s->c; + pc.bytestream_start= + pc.bytestream= p_buffer; //FIXME end/start? and at the other stoo + memcpy(p_state, s->block_state, sizeof(s->block_state)); - b[0]= &s->block[index]; - b[1]= b[0]+1; - b[2]= b[0]+b_stride; - b[3]= b[2]+1; - if(same_block(b[0], b[1]) && - same_block(b[0], b[2]) && - same_block(b[0], b[3])) - continue; + if(level!=s->block_max_depth) + put_rac(&pc, &p_state[4 + s_context], 1); + put_rac(&pc, &p_state[1 + left->type + top->type], 0); + if(s->ref_frames > 1) + put_symbol(&pc, &p_state[128 + 1024 + 32*ref_context], best_ref, 0); + pred_mv(s, &pmx, &pmy, best_ref, left, top, tr); + put_symbol(&pc, &p_state[128 + 32*(mx_context + 16*!!best_ref)], mx - pmx, 1); + put_symbol(&pc, &p_state[128 + 32*(my_context + 16*!!best_ref)], my - pmy, 1); + p_len= pc.bytestream - pc.bytestream_start; + score += (s->lambda2*(get_rac_count(&pc)-base_bits))>>FF_LAMBDA_SHIFT; - if(!s->me_cache_generation) - memset(s->me_cache, 0, sizeof(s->me_cache)); - s->me_cache_generation += 1<<22; + block_s= block_w*block_w; + sum = pix_sum(current_data[0], stride, block_w); + l= (sum + block_s/2)/block_s; + iscore = pix_norm1(current_data[0], stride, block_w) - 2*l*sum + l*l*block_s; - init_rd= best_rd= get_4block_rd(s, mb_x, mb_y, 0); + block_s= block_w*block_w>>2; + sum = pix_sum(current_data[1], uvstride, block_w>>1); + cb= (sum + block_s/2)/block_s; +// iscore += pix_norm1(¤t_mb[1][0], uvstride, block_w>>1) - 2*cb*sum + cb*cb*block_s; + sum = pix_sum(current_data[2], uvstride, block_w>>1); + cr= (sum + block_s/2)/block_s; +// iscore += pix_norm1(¤t_mb[2][0], uvstride, block_w>>1) - 2*cr*sum + cr*cr*block_s; - //FIXME more multiref search? - check_4block_inter(s, mb_x, mb_y, - (b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2, - (b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd); + ic= s->c; + ic.bytestream_start= + ic.bytestream= i_buffer; //FIXME end/start? and at the other stoo + memcpy(i_state, s->block_state, sizeof(s->block_state)); + if(level!=s->block_max_depth) + put_rac(&ic, &i_state[4 + s_context], 1); + put_rac(&ic, &i_state[1 + left->type + top->type], 1); + put_symbol(&ic, &i_state[32], l-pl , 1); + put_symbol(&ic, &i_state[64], cb-pcb, 1); + put_symbol(&ic, &i_state[96], cr-pcr, 1); + i_len= ic.bytestream - ic.bytestream_start; + iscore += (s->lambda2*(get_rac_count(&ic)-base_bits))>>FF_LAMBDA_SHIFT; - for(i=0; i<4; i++) - if(!(b[i]->type&BLOCK_INTRA)) - check_4block_inter(s, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd); +// assert(score==256*256*256*64-1); + assert(iscore < 255*255*256 + s->lambda2*10); + assert(iscore >= 0); + assert(l>=0 && l<=255); + assert(pl>=0 && pl<=255); - if(init_rd != best_rd) - change++; - } - } - av_log(NULL, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4); + if(level==0){ + int varc= iscore >> 8; + int vard= score >> 8; + if (vard <= 64 || vard < varc) + c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc); + else + c->scene_change_score+= s->m.qscale; } -} -static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){ - const int w= b->width; - const int h= b->height; - const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); - const int qmul= qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS); - int x,y, thres1, thres2; + if(level!=s->block_max_depth){ + put_rac(&s->c, &s->block_state[4 + s_context], 0); + score2 = encode_q_branch(s, level+1, 2*x+0, 2*y+0); + score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+0); + score2+= encode_q_branch(s, level+1, 2*x+0, 2*y+1); + score2+= encode_q_branch(s, level+1, 2*x+1, 2*y+1); + score2+= s->lambda2>>FF_LAMBDA_SHIFT; //FIXME exact split overhead - if(s->qlog == LOSSLESS_QLOG){ - for(y=0; y>3; - thres1= ((qmul - bias)>>QEXPSHIFT) - 1; - thres2= 2*thres1; + if(iscore < score){ + pred_mv(s, &pmx, &pmy, 0, left, top, tr); + memcpy(pbbak, i_buffer, i_len); + s->c= ic; + s->c.bytestream_start= pbbak_start; + s->c.bytestream= pbbak + i_len; + set_blocks(s, level, x, y, l, cb, cr, pmx, pmy, 0, BLOCK_INTRA); + memcpy(s->block_state, i_state, sizeof(s->block_state)); + return iscore; + }else{ + memcpy(pbbak, p_buffer, p_len); + s->c= pc; + s->c.bytestream_start= pbbak_start; + s->c.bytestream= pbbak + p_len; + set_blocks(s, level, x, y, pl, pcb, pcr, mx, my, best_ref, 0); + memcpy(s->block_state, p_state, sizeof(s->block_state)); + return score; + } +} - if(!bias){ - for(y=0; yb_width << s->block_max_depth; + const int rem_depth= s->block_max_depth - level; + const int index= (x + y*w) << rem_depth; + int trx= (x+1)<block[index]; + const BlockNode *left = x ? &s->block[index-1] : &null_block; + const BlockNode *top = y ? &s->block[index-w] : &null_block; + const BlockNode *tl = y && x ? &s->block[index-w-1] : left; + const BlockNode *tr = y && trxblock[index-w+(1<color[0]; + int pcb= left->color[1]; + int pcr= left->color[2]; + int pmx, pmy; + int ref_context= av_log2(2*left->ref) + av_log2(2*top->ref); + int mx_context= av_log2(2*FFABS(left->mx - top->mx)) + 16*!!b->ref; + int my_context= av_log2(2*FFABS(left->my - top->my)) + 16*!!b->ref; + int s_context= 2*left->level + 2*top->level + tl->level + tr->level; - if((unsigned)(i+thres1) > thres2){ - if(i>=0){ - i<<= QEXPSHIFT; - i/= qmul; //FIXME optimize - dst[x + y*stride]= i; - }else{ - i= -i; - i<<= QEXPSHIFT; - i/= qmul; //FIXME optimize - dst[x + y*stride]= -i; - } - }else - dst[x + y*stride]= 0; - } - } - }else{ - for(y=0; ykeyframe){ + set_blocks(s, level, x, y, pl, pcb, pcr, 0, 0, 0, BLOCK_INTRA); + return; + } - if((unsigned)(i+thres1) > thres2){ - if(i>=0){ - i<<= QEXPSHIFT; - i= (i + bias) / qmul; //FIXME optimize - dst[x + y*stride]= i; - }else{ - i= -i; - i<<= QEXPSHIFT; - i= (i + bias) / qmul; //FIXME optimize - dst[x + y*stride]= -i; - } - }else - dst[x + y*stride]= 0; - } + if(level!=s->block_max_depth){ + if(same_block(b,b+1) && same_block(b,b+w) && same_block(b,b+w+1)){ + put_rac(&s->c, &s->block_state[4 + s_context], 1); + }else{ + put_rac(&s->c, &s->block_state[4 + s_context], 0); + encode_q_branch2(s, level+1, 2*x+0, 2*y+0); + encode_q_branch2(s, level+1, 2*x+1, 2*y+0); + encode_q_branch2(s, level+1, 2*x+0, 2*y+1); + encode_q_branch2(s, level+1, 2*x+1, 2*y+1); + return; } } + if(b->type & BLOCK_INTRA){ + pred_mv(s, &pmx, &pmy, 0, left, top, tr); + put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 1); + put_symbol(&s->c, &s->block_state[32], b->color[0]-pl , 1); + put_symbol(&s->c, &s->block_state[64], b->color[1]-pcb, 1); + put_symbol(&s->c, &s->block_state[96], b->color[2]-pcr, 1); + set_blocks(s, level, x, y, b->color[0], b->color[1], b->color[2], pmx, pmy, 0, BLOCK_INTRA); + }else{ + pred_mv(s, &pmx, &pmy, b->ref, left, top, tr); + put_rac(&s->c, &s->block_state[1 + (left->type&1) + (top->type&1)], 0); + if(s->ref_frames > 1) + put_symbol(&s->c, &s->block_state[128 + 1024 + 32*ref_context], b->ref, 0); + put_symbol(&s->c, &s->block_state[128 + 32*mx_context], b->mx - pmx, 1); + put_symbol(&s->c, &s->block_state[128 + 32*my_context], b->my - pmy, 1); + set_blocks(s, level, x, y, pl, pcb, pcr, b->mx, b->my, b->ref, 0); + } } -static void dequantize_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int start_y, int end_y){ - const int w= b->width; - const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); - const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; - int x,y; +static int get_dc(SnowContext *s, int mb_x, int mb_y, int plane_index){ + int i, x2, y2; + Plane *p= &s->plane[plane_index]; + const int block_size = MB_SIZE >> s->block_max_depth; + const int block_w = plane_index ? block_size/2 : block_size; + const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; + const int obmc_stride= plane_index ? block_size : 2*block_size; + const int ref_stride= s->current_picture.linesize[plane_index]; + uint8_t *src= s-> input_picture.data[plane_index]; + IDWTELEM *dst= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; //FIXME change to unsigned + const int b_stride = s->b_width << s->block_max_depth; + const int w= p->width; + const int h= p->height; + int index= mb_x + mb_y*b_stride; + BlockNode *b= &s->block[index]; + BlockNode backup= *b; + int ab=0; + int aa=0; - if(s->qlog == LOSSLESS_QLOG) return; + b->type|= BLOCK_INTRA; + b->color[plane_index]= 0; + memset(dst, 0, obmc_stride*obmc_stride*sizeof(IDWTELEM)); - for(y=start_y; ystride_line) + b->buf_y_offset) + b->buf_x_offset; - for(x=0; x>(QEXPSHIFT)); //FIXME try different bias - }else if(i>0){ - line[x]= (( i*qmul + qadd)>>(QEXPSHIFT)); - } - } - } -} + for(i=0; i<4; i++){ + int mb_x2= mb_x + (i &1) - 1; + int mb_y2= mb_y + (i>>1) - 1; + int x= block_w*mb_x2 + block_w/2; + int y= block_w*mb_y2 + block_w/2; -static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){ - const int w= b->width; - const int h= b->height; - const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); - const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; - int x,y; + add_yblock(s, 0, NULL, dst + ((i&1)+(i>>1)*obmc_stride)*block_w, NULL, obmc, + x, y, block_w, block_w, w, h, obmc_stride, ref_stride, obmc_stride, mb_x2, mb_y2, 0, 0, plane_index); - if(s->qlog == LOSSLESS_QLOG) return; + for(y2= FFMAX(y, 0); y2h) obmc_v += obmc[index - block_w*obmc_stride]; + if(x+block_w>w) obmc_v += obmc[index - block_w]; + //FIXME precalculate this or simplify it somehow else - for(y=0; y>(QEXPSHIFT)); //FIXME try different bias - }else if(i>0){ - src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT)); + d = -dst[index] + (1<<(FRAC_BITS-1)); + dst[index] = d; + ab += (src[x2 + y2*ref_stride] - (d>>FRAC_BITS)) * obmc_v; + aa += obmc_v * obmc_v; //FIXME precalculate this } } } -} + *b= backup; -static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){ - const int w= b->width; - const int h= b->height; - int x,y; + return av_clip(((ab<=0; y--){ - for(x=w-1; x>=0; x--){ - int i= x + y*stride; +static inline int get_block_bits(SnowContext *s, int x, int y, int w){ + const int b_stride = s->b_width << s->block_max_depth; + const int b_height = s->b_height<< s->block_max_depth; + int index= x + y*b_stride; + const BlockNode *b = &s->block[index]; + const BlockNode *left = x ? &s->block[index-1] : &null_block; + const BlockNode *top = y ? &s->block[index-b_stride] : &null_block; + const BlockNode *tl = y && x ? &s->block[index-b_stride-1] : left; + const BlockNode *tr = y && x+wblock[index-b_stride+w] : tl; + int dmx, dmy; +// int mx_context= av_log2(2*FFABS(left->mx - top->mx)); +// int my_context= av_log2(2*FFABS(left->my - top->my)); - if(x){ - if(use_median){ - if(y && x+1=b_stride || y>=b_height) + return 0; +/* +1 0 0 +01X 1-2 1 +001XX 3-6 2-3 +0001XXX 7-14 4-7 +00001XXXX 15-30 8-15 +*/ +//FIXME try accurate rate +//FIXME intra and inter predictors if surrounding blocks are not the same type + if(b->type & BLOCK_INTRA){ + return 3+2*( av_log2(2*FFABS(left->color[0] - b->color[0])) + + av_log2(2*FFABS(left->color[1] - b->color[1])) + + av_log2(2*FFABS(left->color[2] - b->color[2]))); + }else{ + pred_mv(s, &dmx, &dmy, b->ref, left, top, tr); + dmx-= b->mx; + dmy-= b->my; + return 2*(1 + av_log2(2*FFABS(dmx)) //FIXME kill the 2* can be merged in lambda + + av_log2(2*FFABS(dmy)) + + av_log2(2*b->ref)); } } -static void correlate_slice_buffered(SnowContext *s, slice_buffer * sb, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median, int start_y, int end_y){ - const int w= b->width; - int x,y; - - IDWTELEM * line=0; // silence silly "could be used without having been initialized" warning - IDWTELEM * prev; +static int get_block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index, const uint8_t *obmc_edged){ + Plane *p= &s->plane[plane_index]; + const int block_size = MB_SIZE >> s->block_max_depth; + const int block_w = plane_index ? block_size/2 : block_size; + const int obmc_stride= plane_index ? block_size : 2*block_size; + const int ref_stride= s->current_picture.linesize[plane_index]; + uint8_t *dst= s->current_picture.data[plane_index]; + uint8_t *src= s-> input_picture.data[plane_index]; + IDWTELEM *pred= (IDWTELEM*)s->m.obmc_scratchpad + plane_index*block_size*block_size*4; + uint8_t *cur = s->scratchbuf; + uint8_t tmp[ref_stride*(2*MB_SIZE+HTAPS_MAX-1)]; + const int b_stride = s->b_width << s->block_max_depth; + const int b_height = s->b_height<< s->block_max_depth; + const int w= p->width; + const int h= p->height; + int distortion; + int rate= 0; + const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); + int sx= block_w*mb_x - block_w/2; + int sy= block_w*mb_y - block_w/2; + int x0= FFMAX(0,-sx); + int y0= FFMAX(0,-sy); + int x1= FFMIN(block_w*2, w-sx); + int y1= FFMIN(block_w*2, h-sy); + int i,x,y; - if (start_y != 0) - line = slice_buffer_get_line(sb, ((start_y - 1) * b->stride_line) + b->buf_y_offset) + b->buf_x_offset; + pred_block(s, cur, tmp, ref_stride, sx, sy, block_w*2, block_w*2, &s->block[mb_x + mb_y*b_stride], plane_index, w, h); - for(y=start_y; ystride_line) + b->buf_y_offset) + b->buf_x_offset; - for(x=0; x= LOG2_OBMC_MAX + int v = (cur1[x] * obmc1[x]) << (FRAC_BITS - LOG2_OBMC_MAX); +#else + int v = (cur1[x] * obmc1[x] + (1<<(LOG2_OBMC_MAX - FRAC_BITS-1))) >> (LOG2_OBMC_MAX - FRAC_BITS); +#endif + v = (v + pred1[x]) >> FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst1[x] = v; } } -} - -static void correlate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){ - const int w= b->width; - const int h= b->height; - int x,y; - for(y=0; yavctx->me_cmp == FF_CMP_W97) + distortion = ff_w97_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32); + else if(s->avctx->me_cmp == FF_CMP_W53) + distortion = ff_w53_32_c(&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, 32); + else{ + distortion = 0; + for(i=0; i<4; i++){ + int off = sx+16*(i&1) + (sy+16*(i>>1))*ref_stride; + distortion += s->dsp.me_cmp[0](&s->m, src + off, dst + off, ref_stride, 16); } } + }else{ + assert(block_w==8); + distortion = s->dsp.me_cmp[0](&s->m, src + sx + sy*ref_stride, dst + sx + sy*ref_stride, ref_stride, block_w*2); } -} -static void encode_qlogs(SnowContext *s){ - int plane_index, level, orientation; - - for(plane_index=0; plane_index<2; plane_index++){ - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1:0; orientation<4; orientation++){ - if(orientation==2) continue; - put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1); - } + if(plane_index==0){ + for(i=0; i<4; i++){ +/* ..RRr + * .RXx. + * rxx.. + */ + rate += get_block_bits(s, mb_x + (i&1) - (i>>1), mb_y + (i>>1), 1); } + if(mb_x == b_stride-2) + rate += get_block_bits(s, mb_x + 1, mb_y + 1, 1); } + return distortion + rate*penalty_factor; } -static void encode_header(SnowContext *s){ - int plane_index, i; - uint8_t kstate[32]; - - memset(kstate, MID_STATE, sizeof(kstate)); +static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){ + int i, y2; + Plane *p= &s->plane[plane_index]; + const int block_size = MB_SIZE >> s->block_max_depth; + const int block_w = plane_index ? block_size/2 : block_size; + const uint8_t *obmc = plane_index ? obmc_tab[s->block_max_depth+1] : obmc_tab[s->block_max_depth]; + const int obmc_stride= plane_index ? block_size : 2*block_size; + const int ref_stride= s->current_picture.linesize[plane_index]; + uint8_t *dst= s->current_picture.data[plane_index]; + uint8_t *src= s-> input_picture.data[plane_index]; + //FIXME zero_dst is const but add_yblock changes dst if add is 0 (this is never the case for dst=zero_dst + // const has only been removed from zero_dst to suppress a warning + static IDWTELEM zero_dst[4096]; //FIXME + const int b_stride = s->b_width << s->block_max_depth; + const int w= p->width; + const int h= p->height; + int distortion= 0; + int rate= 0; + const int penalty_factor= get_penalty_factor(s->lambda, s->lambda2, s->avctx->me_cmp); - put_rac(&s->c, kstate, s->keyframe); - if(s->keyframe || s->always_reset){ - reset_contexts(s); - s->last_spatial_decomposition_type= - s->last_qlog= - s->last_qbias= - s->last_mv_scale= - s->last_block_max_depth= 0; - for(plane_index=0; plane_index<2; plane_index++){ - Plane *p= &s->plane[plane_index]; - p->last_htaps=0; - p->last_diag_mc=0; - memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff)); - } - } - if(s->keyframe){ - put_symbol(&s->c, s->header_state, s->version, 0); - put_rac(&s->c, s->header_state, s->always_reset); - put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0); - put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0); - put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); - put_symbol(&s->c, s->header_state, s->colorspace_type, 0); - put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0); - put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0); - put_rac(&s->c, s->header_state, s->spatial_scalability); -// put_rac(&s->c, s->header_state, s->rate_scalability); - put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0); + for(i=0; i<9; i++){ + int mb_x2= mb_x + (i%3) - 1; + int mb_y2= mb_y + (i/3) - 1; + int x= block_w*mb_x2 + block_w/2; + int y= block_w*mb_y2 + block_w/2; - encode_qlogs(s); - } + add_yblock(s, 0, NULL, zero_dst, dst, obmc, + x, y, block_w, block_w, w, h, /*dst_stride*/0, ref_stride, obmc_stride, mb_x2, mb_y2, 1, 1, plane_index); - if(!s->keyframe){ - int update_mc=0; - for(plane_index=0; plane_index<2; plane_index++){ - Plane *p= &s->plane[plane_index]; - update_mc |= p->last_htaps != p->htaps; - update_mc |= p->last_diag_mc != p->diag_mc; - update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff)); + //FIXME find a cleaner/simpler way to skip the outside stuff + for(y2= y; y2<0; y2++) + memcpy(dst + x + y2*ref_stride, src + x + y2*ref_stride, block_w); + for(y2= h; y2c, s->header_state, update_mc); - if(update_mc){ - for(plane_index=0; plane_index<2; plane_index++){ - Plane *p= &s->plane[plane_index]; - put_rac(&s->c, s->header_state, p->diag_mc); - put_symbol(&s->c, s->header_state, p->htaps/2-1, 0); - for(i= p->htaps/2; i; i--) - put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0); - } + if(x+block_w > w){ + for(y2= y; y2last_spatial_decomposition_count != s->spatial_decomposition_count){ - put_rac(&s->c, s->header_state, 1); - put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); - encode_qlogs(s); - }else - put_rac(&s->c, s->header_state, 0); - } - - put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1); - put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1); - put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1); - put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1); - put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1); - -} - -static void update_last_header_values(SnowContext *s){ - int plane_index; - if(!s->keyframe){ - for(plane_index=0; plane_index<2; plane_index++){ - Plane *p= &s->plane[plane_index]; - p->last_diag_mc= p->diag_mc; - p->last_htaps = p->htaps; - memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff)); - } + assert(block_w== 8 || block_w==16); + distortion += s->dsp.me_cmp[block_w==8](&s->m, src + x + y*ref_stride, dst + x + y*ref_stride, ref_stride, block_w); } - s->last_spatial_decomposition_type = s->spatial_decomposition_type; - s->last_qlog = s->qlog; - s->last_qbias = s->qbias; - s->last_mv_scale = s->mv_scale; - s->last_block_max_depth = s->block_max_depth; - s->last_spatial_decomposition_count = s->spatial_decomposition_count; -} - -static void decode_qlogs(SnowContext *s){ - int plane_index, level, orientation; + if(plane_index==0){ + BlockNode *b= &s->block[mb_x+mb_y*b_stride]; + int merged= same_block(b,b+1) && same_block(b,b+b_stride) && same_block(b,b+b_stride+1); - for(plane_index=0; plane_index<3; plane_index++){ - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1:0; orientation<4; orientation++){ - int q; - if (plane_index==2) q= s->plane[1].band[level][orientation].qlog; - else if(orientation==2) q= s->plane[plane_index].band[level][1].qlog; - else q= get_symbol(&s->c, s->header_state, 1); - s->plane[plane_index].band[level][orientation].qlog= q; - } +/* ..RRRr + * .RXXx. + * .RXXx. + * rxxx. + */ + if(merged) + rate = get_block_bits(s, mb_x, mb_y, 2); + for(i=merged?4:0; i<9; i++){ + static const int dxy[9][2] = {{0,0},{1,0},{0,1},{1,1},{2,0},{2,1},{-1,2},{0,2},{1,2}}; + rate += get_block_bits(s, mb_x + dxy[i][0], mb_y + dxy[i][1], 1); } } + return distortion + rate*penalty_factor; } -static int decode_header(SnowContext *s){ - int plane_index; - uint8_t kstate[32]; - - memset(kstate, MID_STATE, sizeof(kstate)); +static int encode_subband_c0run(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){ + const int w= b->width; + const int h= b->height; + int x, y; - s->keyframe= get_rac(&s->c, kstate); - if(s->keyframe || s->always_reset){ - reset_contexts(s); - s->spatial_decomposition_type= - s->qlog= - s->qbias= - s->mv_scale= - s->block_max_depth= 0; - } - if(s->keyframe){ - s->version= get_symbol(&s->c, s->header_state, 0); - if(s->version>0){ - av_log(s->avctx, AV_LOG_ERROR, "version %d not supported", s->version); - return -1; - } - s->always_reset= get_rac(&s->c, s->header_state); - s->temporal_decomposition_type= get_symbol(&s->c, s->header_state, 0); - s->temporal_decomposition_count= get_symbol(&s->c, s->header_state, 0); - s->spatial_decomposition_count= get_symbol(&s->c, s->header_state, 0); - s->colorspace_type= get_symbol(&s->c, s->header_state, 0); - s->chroma_h_shift= get_symbol(&s->c, s->header_state, 0); - s->chroma_v_shift= get_symbol(&s->c, s->header_state, 0); - s->spatial_scalability= get_rac(&s->c, s->header_state); -// s->rate_scalability= get_rac(&s->c, s->header_state); - s->max_ref_frames= get_symbol(&s->c, s->header_state, 0)+1; + if(1){ + int run=0; + int runs[w*h]; + int run_index=0; + int max_index; - decode_qlogs(s); - } + for(y=0; ykeyframe){ - if(get_rac(&s->c, s->header_state)){ - for(plane_index=0; plane_index<2; plane_index++){ - int htaps, i, sum=0; - Plane *p= &s->plane[plane_index]; - p->diag_mc= get_rac(&s->c, s->header_state); - htaps= get_symbol(&s->c, s->header_state, 0)*2 + 2; - if((unsigned)htaps > HTAPS_MAX || htaps==0) - return -1; - p->htaps= htaps; - for(i= htaps/2; i; i--){ - p->hcoeff[i]= get_symbol(&s->c, s->header_state, 0) * (1-2*(i&1)); - sum += p->hcoeff[i]; + if(y){ + t= src[x + (y-1)*stride]; + if(x){ + lt= src[x - 1 + (y-1)*stride]; + } + if(x + 1 < w){ + rt= src[x + 1 + (y-1)*stride]; + } + } + if(x){ + l= src[x - 1 + y*stride]; + /*if(x > 1){ + if(orientation==1) ll= src[y + (x-2)*stride]; + else ll= src[x - 2 + y*stride]; + }*/ + } + if(parent){ + int px= x>>1; + int py= y>>1; + if(pxparent->width && pyparent->height) + p= parent[px + py*2*stride]; + } + if(!(/*ll|*/l|lt|t|rt|p)){ + if(v){ + runs[run_index++]= run; + run=0; + }else{ + run++; + } } - p->hcoeff[0]= 32-sum; } - s->plane[2].diag_mc= s->plane[1].diag_mc; - s->plane[2].htaps = s->plane[1].htaps; - memcpy(s->plane[2].hcoeff, s->plane[1].hcoeff, sizeof(s->plane[1].hcoeff)); - } - if(get_rac(&s->c, s->header_state)){ - s->spatial_decomposition_count= get_symbol(&s->c, s->header_state, 0); - decode_qlogs(s); } - } + max_index= run_index; + runs[run_index++]= run; + run_index=0; + run= runs[run_index++]; - s->spatial_decomposition_type+= get_symbol(&s->c, s->header_state, 1); - if(s->spatial_decomposition_type > 1){ - av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); - return -1; - } + put_symbol2(&s->c, b->state[30], max_index, 0); + if(run_index <= max_index) + put_symbol2(&s->c, b->state[1], run, 3); - s->qlog += get_symbol(&s->c, s->header_state, 1); - s->mv_scale += get_symbol(&s->c, s->header_state, 1); - s->qbias += get_symbol(&s->c, s->header_state, 1); - s->block_max_depth+= get_symbol(&s->c, s->header_state, 1); - if(s->block_max_depth > 1 || s->block_max_depth < 0){ - av_log(s->avctx, AV_LOG_ERROR, "block_max_depth= %d is too large", s->block_max_depth); - s->block_max_depth= 0; - return -1; - } + for(y=0; yc.bytestream_end - s->c.bytestream < w*40){ + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + for(x=0; x 1){ + if(orientation==1) ll= src[y + (x-2)*stride]; + else ll= src[x - 2 + y*stride]; + }*/ + } + if(parent){ + int px= x>>1; + int py= y>>1; + if(pxparent->width && pyparent->height) + p= parent[px + py*2*stride]; + } + if(/*ll|*/l|lt|t|rt|p){ + int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); -static void init_qexp(void){ - int i; - double v=128; + put_rac(&s->c, &b->state[0][context], !!v); + }else{ + if(!run){ + run= runs[run_index++]; - for(i=0; ic, b->state[1], run, 3); + assert(v); + }else{ + run--; + assert(!v); + } + } + if(v){ + int context= av_log2(/*FFABS(ll) + */3*FFABS(l) + FFABS(lt) + 2*FFABS(t) + FFABS(rt) + FFABS(p)); + int l2= 2*FFABS(l) + (l<0); + int t2= 2*FFABS(t) + (t<0); + + put_symbol2(&s->c, b->state[context + 2], FFABS(v)-1, context-4); + put_rac(&s->c, &b->state[0][16 + 1 + 3 + quant3bA[l2&0xFF] + 3*quant3bA[t2&0xFF]], v<0); + } + } + } } + return 0; } -static av_cold int common_init(AVCodecContext *avctx){ - SnowContext *s = avctx->priv_data; - int width, height; - int i, j; +static int encode_subband(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){ +// encode_subband_qtree(s, b, src, parent, stride, orientation); +// encode_subband_z0run(s, b, src, parent, stride, orientation); + return encode_subband_c0run(s, b, src, parent, stride, orientation); +// encode_subband_dzr(s, b, src, parent, stride, orientation); +} - s->avctx= avctx; +static av_always_inline int check_block(SnowContext *s, int mb_x, int mb_y, int p[3], int intra, const uint8_t *obmc_edged, int *best_rd){ + const int b_stride= s->b_width << s->block_max_depth; + BlockNode *block= &s->block[mb_x + mb_y * b_stride]; + BlockNode backup= *block; + int rd, index, value; - dsputil_init(&s->dsp, avctx); + assert(mb_x>=0 && mb_y>=0); + assert(mb_xdsp.put_qpel_pixels_tab [0][dy+dx/4]=\ - s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ - s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\ - s->dsp.put_qpel_pixels_tab [1][dy+dx/4]=\ - s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\ - s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4]; + if(intra){ + block->color[0] = p[0]; + block->color[1] = p[1]; + block->color[2] = p[2]; + block->type |= BLOCK_INTRA; + }else{ + index= (p[0] + 31*p[1]) & (ME_CACHE_SIZE-1); + value= s->me_cache_generation + (p[0]>>10) + (p[1]<<6) + (block->ref<<12); + if(s->me_cache[index] == value) + return 0; + s->me_cache[index]= value; - mcf( 0, 0) - mcf( 4, 0) - mcf( 8, 0) - mcf(12, 0) - mcf( 0, 4) - mcf( 4, 4) - mcf( 8, 4) - mcf(12, 4) - mcf( 0, 8) - mcf( 4, 8) - mcf( 8, 8) - mcf(12, 8) - mcf( 0,12) - mcf( 4,12) - mcf( 8,12) - mcf(12,12) + block->mx= p[0]; + block->my= p[1]; + block->type &= ~BLOCK_INTRA; + } -#define mcfh(dx,dy)\ - s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ - s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ - mc_block_hpel ## dx ## dy ## 16;\ - s->dsp.put_pixels_tab [1][dy/4+dx/8]=\ - s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\ - mc_block_hpel ## dx ## dy ## 8; + rd= get_block_rd(s, mb_x, mb_y, 0, obmc_edged); - mcfh(0, 0) - mcfh(8, 0) - mcfh(0, 8) - mcfh(8, 8) +//FIXME chroma + if(rd < *best_rd){ + *best_rd= rd; + return 1; + }else{ + *block= backup; + return 0; + } +} - if(!qexp[0]) - init_qexp(); +/* special case for int[2] args we discard afterwards, + * fixes compilation problem with gcc 2.95 */ +static av_always_inline int check_block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, const uint8_t *obmc_edged, int *best_rd){ + int p[2] = {p0, p1}; + return check_block(s, mb_x, mb_y, p, 0, obmc_edged, best_rd); +} -// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); +static av_always_inline int check_4block_inter(SnowContext *s, int mb_x, int mb_y, int p0, int p1, int ref, int *best_rd){ + const int b_stride= s->b_width << s->block_max_depth; + BlockNode *block= &s->block[mb_x + mb_y * b_stride]; + BlockNode backup[4]= {block[0], block[1], block[b_stride], block[b_stride+1]}; + int rd, index, value; - width= s->avctx->width; - height= s->avctx->height; + assert(mb_x>=0 && mb_y>=0); + assert(mb_xspatial_idwt_buffer= av_mallocz(width*height*sizeof(IDWTELEM)); - s->spatial_dwt_buffer= av_mallocz(width*height*sizeof(DWTELEM)); //FIXME this does not belong here + index= (p0 + 31*p1) & (ME_CACHE_SIZE-1); + value= s->me_cache_generation + (p0>>10) + (p1<<6) + (block->ref<<12); + if(s->me_cache[index] == value) + return 0; + s->me_cache[index]= value; - for(i=0; imx= p0; + block->my= p1; + block->ref= ref; + block->type &= ~BLOCK_INTRA; + block[1]= block[b_stride]= block[b_stride+1]= *block; - s->avctx->get_buffer(s->avctx, &s->mconly_picture); - s->scratchbuf = av_malloc(s->mconly_picture.linesize[0]*7*MB_SIZE); + rd= get_4block_rd(s, mb_x, mb_y, 0); - return 0; +//FIXME chroma + if(rd < *best_rd){ + *best_rd= rd; + return 1; + }else{ + block[0]= backup[0]; + block[1]= backup[1]; + block[b_stride]= backup[2]; + block[b_stride+1]= backup[3]; + return 0; + } } -static int common_init_after_header(AVCodecContext *avctx){ - SnowContext *s = avctx->priv_data; - int plane_index, level, orientation; - - for(plane_index=0; plane_index<3; plane_index++){ - int w= s->avctx->width; - int h= s->avctx->height; - - if(plane_index){ - w>>= s->chroma_h_shift; - h>>= s->chroma_v_shift; - } - s->plane[plane_index].width = w; - s->plane[plane_index].height= h; - - for(level=s->spatial_decomposition_count-1; level>=0; level--){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &s->plane[plane_index].band[level][orientation]; +static void iterative_me(SnowContext *s){ + int pass, mb_x, mb_y; + const int b_width = s->b_width << s->block_max_depth; + const int b_height= s->b_height << s->block_max_depth; + const int b_stride= b_width; + int color[3]; - b->buf= s->spatial_dwt_buffer; - b->level= level; - b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); - b->width = (w + !(orientation&1))>>1; - b->height= (h + !(orientation>1))>>1; + { + RangeCoder r = s->c; + uint8_t state[sizeof(s->block_state)]; + memcpy(state, s->block_state, sizeof(s->block_state)); + for(mb_y= 0; mb_yb_height; mb_y++) + for(mb_x= 0; mb_xb_width; mb_x++) + encode_q_branch(s, 0, mb_x, mb_y); + s->c = r; + memcpy(s->block_state, state, sizeof(s->block_state)); + } - b->stride_line = 1 << (s->spatial_decomposition_count - level); - b->buf_x_offset = 0; - b->buf_y_offset = 0; + for(pass=0; pass<25; pass++){ + int change= 0; - if(orientation&1){ - b->buf += (w+1)>>1; - b->buf_x_offset = (w+1)>>1; - } - if(orientation>1){ - b->buf += b->stride>>1; - b->buf_y_offset = b->stride_line >> 1; - } - b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer); + for(mb_y= 0; mb_yblock[index]; + BlockNode *tb = mb_y ? &s->block[index-b_stride ] : NULL; + BlockNode *lb = mb_x ? &s->block[index -1] : NULL; + BlockNode *rb = mb_x+1block[index +1] : NULL; + BlockNode *bb = mb_y+1block[index+b_stride ] : NULL; + BlockNode *tlb= mb_x && mb_y ? &s->block[index-b_stride-1] : NULL; + BlockNode *trb= mb_x+1block[index-b_stride+1] : NULL; + BlockNode *blb= mb_x && mb_y+1block[index+b_stride-1] : NULL; + BlockNode *brb= mb_x+1block[index+b_stride+1] : NULL; + const int b_w= (MB_SIZE >> s->block_max_depth); + uint8_t obmc_edged[b_w*2][b_w*2]; - if(level) - b->parent= &s->plane[plane_index].band[level-1][orientation]; - //FIXME avoid this realloc - av_freep(&b->x_coeff); - b->x_coeff=av_mallocz(((b->width+1) * b->height+1)*sizeof(x_and_coeff)); - } - w= (w+1)>>1; - h= (h+1)>>1; - } - } + if(pass && (block->type & BLOCK_OPT)) + continue; + block->type |= BLOCK_OPT; - return 0; -} + backup= *block; -static int qscale2qlog(int qscale){ - return rint(QROOT*log(qscale / (float)FF_QP2LAMBDA)/log(2)) - + 61*QROOT/8; //<64 >60 -} + if(!s->me_cache_generation) + memset(s->me_cache, 0, sizeof(s->me_cache)); + s->me_cache_generation += 1<<22; -static int ratecontrol_1pass(SnowContext *s, AVFrame *pict) -{ - /* Estimate the frame's complexity as a sum of weighted dwt coefficients. - * FIXME we know exact mv bits at this point, - * but ratecontrol isn't set up to include them. */ - uint32_t coef_sum= 0; - int level, orientation, delta_qlog; + //FIXME precalculate + { + int x, y; + memcpy(obmc_edged, obmc_tab[s->block_max_depth], b_w*b_w*4); + if(mb_x==0) + for(y=0; yspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &s->plane[0].band[level][orientation]; - IDWTELEM *buf= b->ibuf; - const int w= b->width; - const int h= b->height; - const int stride= b->stride; - const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16); - const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); - const int qdiv= (1<<16)/qmul; - int x, y; - //FIXME this is ugly - for(y=0; ybuf[x+y*stride]; - if(orientation==0) - decorrelate(s, b, buf, stride, 1, 0); - for(y=0; y> 16; - } - } + //skip stuff outside the picture + if(mb_x==0 || mb_y==0 || mb_x==b_width-1 || mb_y==b_height-1){ + uint8_t *src= s-> input_picture.data[0]; + uint8_t *dst= s->current_picture.data[0]; + const int stride= s->current_picture.linesize[0]; + const int block_w= MB_SIZE >> s->block_max_depth; + const int sx= block_w*mb_x - block_w/2; + const int sy= block_w*mb_y - block_w/2; + const int w= s->plane[0].width; + const int h= s->plane[0].height; + int y; - /* ugly, ratecontrol just takes a sqrt again */ - coef_sum = (uint64_t)coef_sum * coef_sum >> 16; - assert(coef_sum < INT_MAX); + for(y=sy; y<0; y++) + memcpy(dst + sx + y*stride, src + sx + y*stride, block_w*2); + for(y=h; y w){ + for(y=sy; ypict_type == FF_I_TYPE){ - s->m.current_picture.mb_var_sum= coef_sum; - s->m.current_picture.mc_mb_var_sum= 0; - }else{ - s->m.current_picture.mc_mb_var_sum= coef_sum; - s->m.current_picture.mb_var_sum= 0; - } + // intra(black) = neighbors' contribution to the current block + for(i=0; i<3; i++) + color[i]= get_dc(s, mb_x, mb_y, i); - pict->quality= ff_rate_estimate_qscale(&s->m, 1); - if (pict->quality < 0) - return INT_MIN; - s->lambda= pict->quality * 3/2; - delta_qlog= qscale2qlog(pict->quality) - s->qlog; - s->qlog+= delta_qlog; - return delta_qlog; -} + // get previous score (cannot be cached due to OBMC) + if(pass > 0 && (block->type&BLOCK_INTRA)){ + int color0[3]= {block->color[0], block->color[1], block->color[2]}; + check_block(s, mb_x, mb_y, color0, 1, *obmc_edged, &best_rd); + }else + check_block_inter(s, mb_x, mb_y, block->mx, block->my, *obmc_edged, &best_rd); -static void calculate_visual_weight(SnowContext *s, Plane *p){ - int width = p->width; - int height= p->height; - int level, orientation, x, y; + ref_b= *block; + ref_rd= best_rd; + for(ref=0; ref < s->ref_frames; ref++){ + int16_t (*mvr)[2]= &s->ref_mvs[ref][index]; + if(s->ref_scores[ref][index] > s->ref_scores[ref_b.ref][index]*3/2) //FIXME tune threshold + continue; + block->ref= ref; + best_rd= INT_MAX; - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - IDWTELEM *ibuf= b->ibuf; - int64_t error=0; + check_block_inter(s, mb_x, mb_y, mvr[0][0], mvr[0][1], *obmc_edged, &best_rd); + check_block_inter(s, mb_x, mb_y, 0, 0, *obmc_edged, &best_rd); + if(tb) + check_block_inter(s, mb_x, mb_y, mvr[-b_stride][0], mvr[-b_stride][1], *obmc_edged, &best_rd); + if(lb) + check_block_inter(s, mb_x, mb_y, mvr[-1][0], mvr[-1][1], *obmc_edged, &best_rd); + if(rb) + check_block_inter(s, mb_x, mb_y, mvr[1][0], mvr[1][1], *obmc_edged, &best_rd); + if(bb) + check_block_inter(s, mb_x, mb_y, mvr[b_stride][0], mvr[b_stride][1], *obmc_edged, &best_rd); - memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height); - ibuf[b->width/2 + b->height/2*b->stride]= 256*16; - ff_spatial_idwt(s->spatial_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count); - for(y=0; yspatial_idwt_buffer[x + y*width]*16; - error += d*d; + /* fullpel ME */ + //FIXME avoid subpel interpolation / round to nearest integer + do{ + dia_change=0; + for(i=0; iavctx->dia_size, 1); i++){ + for(j=0; jmx+4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); + dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); + dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+4*(i-j), block->my-(4*j), *obmc_edged, &best_rd); + dia_change |= check_block_inter(s, mb_x, mb_y, block->mx-4*(i-j), block->my+(4*j), *obmc_edged, &best_rd); + } + } + }while(dia_change); + /* subpel ME */ + do{ + static const int square[8][2]= {{+1, 0},{-1, 0},{ 0,+1},{ 0,-1},{+1,+1},{-1,-1},{+1,-1},{-1,+1},}; + dia_change=0; + for(i=0; i<8; i++) + dia_change |= check_block_inter(s, mb_x, mb_y, block->mx+square[i][0], block->my+square[i][1], *obmc_edged, &best_rd); + }while(dia_change); + //FIXME or try the standard 2 pass qpel or similar + + mvr[0][0]= block->mx; + mvr[0][1]= block->my; + if(ref_rd > best_rd){ + ref_rd= best_rd; + ref_b= *block; + } + } + best_rd= ref_rd; + *block= ref_b; + check_block(s, mb_x, mb_y, color, 1, *obmc_edged, &best_rd); + //FIXME RD style color selection + if(!same_block(block, &backup)){ + if(tb ) tb ->type &= ~BLOCK_OPT; + if(lb ) lb ->type &= ~BLOCK_OPT; + if(rb ) rb ->type &= ~BLOCK_OPT; + if(bb ) bb ->type &= ~BLOCK_OPT; + if(tlb) tlb->type &= ~BLOCK_OPT; + if(trb) trb->type &= ~BLOCK_OPT; + if(blb) blb->type &= ~BLOCK_OPT; + if(brb) brb->type &= ~BLOCK_OPT; + change ++; } } - - b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5); } + av_log(s->avctx, AV_LOG_ERROR, "pass:%d changed:%d\n", pass, change); + if(!change) + break; } -} -#define QUANTIZE2 0 + if(s->block_max_depth == 1){ + int change= 0; + for(mb_y= 0; mb_yblock[index]; + b[1]= b[0]+1; + b[2]= b[0]+b_stride; + b[3]= b[2]+1; + if(same_block(b[0], b[1]) && + same_block(b[0], b[2]) && + same_block(b[0], b[3])) + continue; + + if(!s->me_cache_generation) + memset(s->me_cache, 0, sizeof(s->me_cache)); + s->me_cache_generation += 1<<22; -#if QUANTIZE2==1 -#define Q2_STEP 8 + init_rd= best_rd= get_4block_rd(s, mb_x, mb_y, 0); -static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDWTELEM *r0, IDWTELEM *r1, int level, int orientation){ - SubBand *b= &p->band[level][orientation]; - int x, y; - int xo=0; - int yo=0; - int step= 1 << (s->spatial_decomposition_count - level); + //FIXME more multiref search? + check_4block_inter(s, mb_x, mb_y, + (b[0]->mx + b[1]->mx + b[2]->mx + b[3]->mx + 2) >> 2, + (b[0]->my + b[1]->my + b[2]->my + b[3]->my + 2) >> 2, 0, &best_rd); - if(orientation&1) - xo= step>>1; - if(orientation&2) - yo= step>>1; + for(i=0; i<4; i++) + if(!(b[i]->type&BLOCK_INTRA)) + check_4block_inter(s, mb_x, mb_y, b[i]->mx, b[i]->my, b[i]->ref, &best_rd); - //FIXME bias for nonzero ? - //FIXME optimize - memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP)); - for(y=0; yheight; y++){ - for(x=0; xwidth; x++){ - int sx= (x-xo + step/2) / step / Q2_STEP; - int sy= (y-yo + step/2) / step / Q2_STEP; - int v= r0[x + y*p->width] - r1[x + y*p->width]; - assert(sx>=0 && sy>=0 && sx < score_stride); - v= ((v+8)>>4)<<4; - score[sx + sy*score_stride] += v*v; - assert(score[sx + sy*score_stride] >= 0); + if(init_rd != best_rd) + change++; + } } + av_log(s->avctx, AV_LOG_ERROR, "pass:4mv changed:%d\n", change*4); } } -static void dequantize_all(SnowContext *s, Plane *p, IDWTELEM *buffer, int width, int height){ - int level, orientation; +static void encode_blocks(SnowContext *s, int search){ + int x, y; + int w= s->b_width; + int h= s->b_height; - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - IDWTELEM *dst= buffer + (b->ibuf - s->spatial_idwt_buffer); + if(s->avctx->me_method == ME_ITER && !s->keyframe && search) + iterative_me(s); - dequantize(s, b, dst, b->stride); + for(y=0; yc.bytestream_end - s->c.bytestream < w*MB_SIZE*MB_SIZE*3){ //FIXME nicer limit + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return; + } + for(x=0; xavctx->me_method == ME_ITER || !search) + encode_q_branch2(s, 0, x, y); + else + encode_q_branch (s, 0, x, y); } } } -static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, int height, int stride, int type){ - int level, orientation, ys, xs, x, y, pass; - IDWTELEM best_dequant[height * stride]; - IDWTELEM idwt2_buffer[height * stride]; - const int score_stride= (width + 10)/Q2_STEP; - int best_score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size - int score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size - int threshold= (s->m.lambda * s->m.lambda) >> 6; +static void quantize(SnowContext *s, SubBand *b, IDWTELEM *dst, DWTELEM *src, int stride, int bias){ + const int w= b->width; + const int h= b->height; + const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); + const int qmul= qexp[qlog&(QROOT-1)]<<((qlog>>QSHIFT) + ENCODER_EXTRA_BITS); + int x,y, thres1, thres2; - //FIXME pass the copy cleanly ? + if(s->qlog == LOSSLESS_QLOG){ + for(y=0; yspatial_decomposition_count); + bias= bias ? 0 : (3*qmul)>>3; + thres1= ((qmul - bias)>>QEXPSHIFT) - 1; + thres2= 2*thres1; - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); - DWTELEM *src= buffer + (b-> buf - s->spatial_dwt_buffer); - assert(src == b->buf); // code does not depend on this but it is true currently + if(!bias){ + for(y=0; ystride, s->qbias); + if((unsigned)(i+thres1) > thres2){ + if(i>=0){ + i<<= QEXPSHIFT; + i/= qmul; //FIXME optimize + dst[x + y*stride]= i; + }else{ + i= -i; + i<<= QEXPSHIFT; + i/= qmul; //FIXME optimize + dst[x + y*stride]= -i; + } + }else + dst[x + y*stride]= 0; + } } - } - for(pass=0; pass<1; pass++){ - if(s->qbias == 0) //keyframe - continue; - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - IDWTELEM *dst= idwt2_buffer + (b->ibuf - s->spatial_idwt_buffer); - IDWTELEM *best_dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer); + }else{ + for(y=0; yspatial_decomposition_count); - find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); - memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); - for(y=ys; yheight; y+= Q2_STEP){ - for(x=xs; xwidth; x+= Q2_STEP){ - if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++; - if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--; - //FIXME try more than just -- - } - } - dequantize_all(s, p, idwt2_buffer, width, height); - ff_spatial_idwt(idwt2_buffer, width, height, stride, type, s->spatial_decomposition_count); - find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation); - for(y=ys; yheight; y+= Q2_STEP){ - for(x=xs; xwidth; x+= Q2_STEP){ - int score_idx= x/Q2_STEP + (y/Q2_STEP)*score_stride; - if(score[score_idx] <= best_score[score_idx] + threshold){ - best_score[score_idx]= score[score_idx]; - if(best_dst[x + y*b->stride]<0) best_dst[x + y*b->stride]++; - if(best_dst[x + y*b->stride]>0) best_dst[x + y*b->stride]--; - //FIXME copy instead - } - } - } + if((unsigned)(i+thres1) > thres2){ + if(i>=0){ + i<<= QEXPSHIFT; + i= (i + bias) / qmul; //FIXME optimize + dst[x + y*stride]= i; + }else{ + i= -i; + i<<= QEXPSHIFT; + i= (i + bias) / qmul; //FIXME optimize + dst[x + y*stride]= -i; } - } + }else + dst[x + y*stride]= 0; } } } - memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end } -#endif /* QUANTIZE2==1 */ - -static av_cold int encode_init(AVCodecContext *avctx) -{ - SnowContext *s = avctx->priv_data; - int plane_index; - - if(avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){ - av_log(avctx, AV_LOG_ERROR, "This codec is under development, files encoded with it may not be decodable with future versions!!!\n" - "Use vstrict=-2 / -strict -2 to use it anyway.\n"); - return -1; - } - - if(avctx->prediction_method == DWT_97 - && (avctx->flags & CODEC_FLAG_QSCALE) - && avctx->global_quality == 0){ - av_log(avctx, AV_LOG_ERROR, "The 9/7 wavelet is incompatible with lossless mode.\n"); - return -1; - } - - s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type - - s->chroma_h_shift= 1; //FIXME XXX - s->chroma_v_shift= 1; - - s->mv_scale = (avctx->flags & CODEC_FLAG_QPEL) ? 2 : 4; - s->block_max_depth= (avctx->flags & CODEC_FLAG_4MV ) ? 1 : 0; - - for(plane_index=0; plane_index<3; plane_index++){ - s->plane[plane_index].diag_mc= 1; - s->plane[plane_index].htaps= 6; - s->plane[plane_index].hcoeff[0]= 40; - s->plane[plane_index].hcoeff[1]= -10; - s->plane[plane_index].hcoeff[2]= 2; - s->plane[plane_index].fast_mc= 1; - } - - common_init(avctx); - alloc_blocks(s); - - s->version=0; - - s->m.avctx = avctx; - s->m.flags = avctx->flags; - s->m.bit_rate= avctx->bit_rate; - - s->m.me.temp = - s->m.me.scratchpad= av_mallocz((avctx->width+64)*2*16*2*sizeof(uint8_t)); - s->m.me.map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); - s->m.me.score_map = av_mallocz(ME_MAP_SIZE*sizeof(uint32_t)); - s->m.obmc_scratchpad= av_mallocz(MB_SIZE*MB_SIZE*12*sizeof(uint32_t)); - h263_encode_init(&s->m); //mv_penalty - - s->max_ref_frames = FFMAX(FFMIN(avctx->refs, MAX_REF_FRAMES), 1); - - if(avctx->flags&CODEC_FLAG_PASS1){ - if(!avctx->stats_out) - avctx->stats_out = av_mallocz(256); - } - if((avctx->flags&CODEC_FLAG_PASS2) || !(avctx->flags&CODEC_FLAG_QSCALE)){ - if(ff_rate_control_init(&s->m) < 0) - return -1; - } - s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2)); - - avctx->coded_frame= &s->current_picture; - switch(avctx->pix_fmt){ -// case PIX_FMT_YUV444P: -// case PIX_FMT_YUV422P: - case PIX_FMT_YUV420P: - case PIX_FMT_GRAY8: -// case PIX_FMT_YUV411P: -// case PIX_FMT_YUV410P: - s->colorspace_type= 0; - break; -/* case PIX_FMT_RGB32: - s->colorspace= 1; - break;*/ - default: - av_log(avctx, AV_LOG_ERROR, "pixel format not supported\n"); - return -1; - } -// avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_h_shift, &s->chroma_v_shift); - s->chroma_h_shift= 1; - s->chroma_v_shift= 1; - - ff_set_cmp(&s->dsp, s->dsp.me_cmp, s->avctx->me_cmp); - ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp); +static void dequantize(SnowContext *s, SubBand *b, IDWTELEM *src, int stride){ + const int w= b->width; + const int h= b->height; + const int qlog= av_clip(s->qlog + b->qlog, 0, QROOT*16); + const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); + const int qadd= (s->qbias*qmul)>>QBIAS_SHIFT; + int x,y; - s->avctx->get_buffer(s->avctx, &s->input_picture); + if(s->qlog == LOSSLESS_QLOG) return; - if(s->avctx->me_method == ME_ITER){ - int i; - int size= s->b_width * s->b_height << 2*s->block_max_depth; - for(i=0; imax_ref_frames; i++){ - s->ref_mvs[i]= av_mallocz(size*sizeof(int16_t[2])); - s->ref_scores[i]= av_mallocz(size*sizeof(uint32_t)); + for(y=0; y>(QEXPSHIFT)); //FIXME try different bias + }else if(i>0){ + src[x + y*stride]= (( i*qmul + qadd)>>(QEXPSHIFT)); + } } } - - return 0; } -#define USE_HALFPEL_PLANE 0 - -static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){ - int p,x,y; +static void decorrelate(SnowContext *s, SubBand *b, IDWTELEM *src, int stride, int inverse, int use_median){ + const int w= b->width; + const int h= b->height; + int x,y; - assert(!(s->avctx->flags & CODEC_FLAG_EMU_EDGE)); + for(y=h-1; y>=0; y--){ + for(x=w-1; x>=0; x--){ + int i= x + y*stride; - for(p=0; p<3; p++){ - int is_chroma= !!p; - int w= s->avctx->width >>is_chroma; - int h= s->avctx->height >>is_chroma; - int ls= frame->linesize[p]; - uint8_t *src= frame->data[p]; + if(x){ + if(use_median){ + if(y && x+1width; + const int h= b->height; + int x,y; - halfpel[0][p]= src; - for(y=0; y>5; + if(x){ + if(use_median){ + if(y && x+1>5; +static void encode_qlogs(SnowContext *s){ + int plane_index, level, orientation; + + for(plane_index=0; plane_index<2; plane_index++){ + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1:0; orientation<4; orientation++){ + if(orientation==2) continue; + put_symbol(&s->c, s->header_state, s->plane[plane_index].band[level][orientation].qlog, 1); } } - src= halfpel[1][p]; - for(y=0; y>5; +static void encode_header(SnowContext *s){ + int plane_index, i; + uint8_t kstate[32]; + + memset(kstate, MID_STATE, sizeof(kstate)); + + put_rac(&s->c, kstate, s->keyframe); + if(s->keyframe || s->always_reset){ + reset_contexts(s); + s->last_spatial_decomposition_type= + s->last_qlog= + s->last_qbias= + s->last_mv_scale= + s->last_block_max_depth= 0; + for(plane_index=0; plane_index<2; plane_index++){ + Plane *p= &s->plane[plane_index]; + p->last_htaps=0; + p->last_diag_mc=0; + memset(p->last_hcoeff, 0, sizeof(p->last_hcoeff)); + } + } + if(s->keyframe){ + put_symbol(&s->c, s->header_state, s->version, 0); + put_rac(&s->c, s->header_state, s->always_reset); + put_symbol(&s->c, s->header_state, s->temporal_decomposition_type, 0); + put_symbol(&s->c, s->header_state, s->temporal_decomposition_count, 0); + put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); + put_symbol(&s->c, s->header_state, s->colorspace_type, 0); + put_symbol(&s->c, s->header_state, s->chroma_h_shift, 0); + put_symbol(&s->c, s->header_state, s->chroma_v_shift, 0); + put_rac(&s->c, s->header_state, s->spatial_scalability); +// put_rac(&s->c, s->header_state, s->rate_scalability); + put_symbol(&s->c, s->header_state, s->max_ref_frames-1, 0); + + encode_qlogs(s); + } + + if(!s->keyframe){ + int update_mc=0; + for(plane_index=0; plane_index<2; plane_index++){ + Plane *p= &s->plane[plane_index]; + update_mc |= p->last_htaps != p->htaps; + update_mc |= p->last_diag_mc != p->diag_mc; + update_mc |= !!memcmp(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff)); + } + put_rac(&s->c, s->header_state, update_mc); + if(update_mc){ + for(plane_index=0; plane_index<2; plane_index++){ + Plane *p= &s->plane[plane_index]; + put_rac(&s->c, s->header_state, p->diag_mc); + put_symbol(&s->c, s->header_state, p->htaps/2-1, 0); + for(i= p->htaps/2; i; i--) + put_symbol(&s->c, s->header_state, FFABS(p->hcoeff[i]), 0); } } + if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){ + put_rac(&s->c, s->header_state, 1); + put_symbol(&s->c, s->header_state, s->spatial_decomposition_count, 0); + encode_qlogs(s); + }else + put_rac(&s->c, s->header_state, 0); + } -//FIXME border! + put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1); + put_symbol(&s->c, s->header_state, s->qlog - s->last_qlog , 1); + put_symbol(&s->c, s->header_state, s->mv_scale - s->last_mv_scale, 1); + put_symbol(&s->c, s->header_state, s->qbias - s->last_qbias , 1); + put_symbol(&s->c, s->header_state, s->block_max_depth - s->last_block_max_depth, 1); + +} + +static void update_last_header_values(SnowContext *s){ + int plane_index; + + if(!s->keyframe){ + for(plane_index=0; plane_index<2; plane_index++){ + Plane *p= &s->plane[plane_index]; + p->last_diag_mc= p->diag_mc; + p->last_htaps = p->htaps; + memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff)); + } } + + s->last_spatial_decomposition_type = s->spatial_decomposition_type; + s->last_qlog = s->qlog; + s->last_qbias = s->qbias; + s->last_mv_scale = s->mv_scale; + s->last_block_max_depth = s->block_max_depth; + s->last_spatial_decomposition_count = s->spatial_decomposition_count; } -static int frame_start(SnowContext *s){ - AVFrame tmp; - int w= s->avctx->width; //FIXME round up to x16 ? - int h= s->avctx->height; +static int qscale2qlog(int qscale){ + return rint(QROOT*log(qscale / (float)FF_QP2LAMBDA)/log(2)) + + 61*QROOT/8; //<64 >60 +} - if(s->current_picture.data[0]){ - s->dsp.draw_edges(s->current_picture.data[0], s->current_picture.linesize[0], w , h , EDGE_WIDTH ); - s->dsp.draw_edges(s->current_picture.data[1], s->current_picture.linesize[1], w>>1, h>>1, EDGE_WIDTH/2); - s->dsp.draw_edges(s->current_picture.data[2], s->current_picture.linesize[2], w>>1, h>>1, EDGE_WIDTH/2); +static int ratecontrol_1pass(SnowContext *s, AVFrame *pict) +{ + /* Estimate the frame's complexity as a sum of weighted dwt coefficients. + * FIXME we know exact mv bits at this point, + * but ratecontrol isn't set up to include them. */ + uint32_t coef_sum= 0; + int level, orientation, delta_qlog; + + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &s->plane[0].band[level][orientation]; + IDWTELEM *buf= b->ibuf; + const int w= b->width; + const int h= b->height; + const int stride= b->stride; + const int qlog= av_clip(2*QROOT + b->qlog, 0, QROOT*16); + const int qmul= qexp[qlog&(QROOT-1)]<<(qlog>>QSHIFT); + const int qdiv= (1<<16)/qmul; + int x, y; + //FIXME this is ugly + for(y=0; ybuf[x+y*stride]; + if(orientation==0) + decorrelate(s, b, buf, stride, 1, 0); + for(y=0; y> 16; + } } - tmp= s->last_picture[s->max_ref_frames-1]; - memmove(s->last_picture+1, s->last_picture, (s->max_ref_frames-1)*sizeof(AVFrame)); - memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4); - if(USE_HALFPEL_PLANE && s->current_picture.data[0]) - halfpel_interpol(s, s->halfpel_plane[0], &s->current_picture); - s->last_picture[0]= s->current_picture; - s->current_picture= tmp; + /* ugly, ratecontrol just takes a sqrt again */ + coef_sum = (uint64_t)coef_sum * coef_sum >> 16; + assert(coef_sum < INT_MAX); - if(s->keyframe){ - s->ref_frames= 0; + if(pict->pict_type == AV_PICTURE_TYPE_I){ + s->m.current_picture.mb_var_sum= coef_sum; + s->m.current_picture.mc_mb_var_sum= 0; }else{ - int i; - for(i=0; imax_ref_frames && s->last_picture[i].data[0]; i++) - if(i && s->last_picture[i-1].key_frame) - break; - s->ref_frames= i; + s->m.current_picture.mc_mb_var_sum= coef_sum; + s->m.current_picture.mb_var_sum= 0; } - s->current_picture.reference= 1; - if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ - av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } + pict->quality= ff_rate_estimate_qscale(&s->m, 1); + if (pict->quality < 0) + return INT_MIN; + s->lambda= pict->quality * 3/2; + delta_qlog= qscale2qlog(pict->quality) - s->qlog; + s->qlog+= delta_qlog; + return delta_qlog; +} + +static void calculate_visual_weight(SnowContext *s, Plane *p){ + int width = p->width; + int height= p->height; + int level, orientation, x, y; - s->current_picture.key_frame= s->keyframe; + for(level=0; levelspatial_decomposition_count; level++){ + for(orientation=level ? 1 : 0; orientation<4; orientation++){ + SubBand *b= &p->band[level][orientation]; + IDWTELEM *ibuf= b->ibuf; + int64_t error=0; - return 0; + memset(s->spatial_idwt_buffer, 0, sizeof(*s->spatial_idwt_buffer)*width*height); + ibuf[b->width/2 + b->height/2*b->stride]= 256*16; + ff_spatial_idwt(s->spatial_idwt_buffer, width, height, width, s->spatial_decomposition_type, s->spatial_decomposition_count); + for(y=0; yspatial_idwt_buffer[x + y*width]*16; + error += d*d; + } + } + + b->qlog= (int)(log(352256.0/sqrt(error)) / log(pow(2.0, 1.0/QROOT))+0.5); + } + } } static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ @@ -4177,7 +3726,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, if(avctx->flags&CODEC_FLAG_PASS2){ s->m.pict_type = pict->pict_type= s->m.rc_context.entry[avctx->frame_number].new_pict_type; - s->keyframe= pict->pict_type==FF_I_TYPE; + s->keyframe= pict->pict_type==AV_PICTURE_TYPE_I; if(!(avctx->flags&CODEC_FLAG_QSCALE)) { pict->quality= ff_rate_estimate_qscale(&s->m, 0); if (pict->quality < 0) @@ -4186,7 +3735,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, }else{ s->keyframe= avctx->gop_size==0 || avctx->frame_number % avctx->gop_size == 0; s->m.pict_type= - pict->pict_type= s->keyframe ? FF_I_TYPE : FF_P_TYPE; + pict->pict_type= s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; } if(s->pass1_rc && avctx->frame_number == 0) @@ -4203,7 +3752,9 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, frame_start(s); s->m.current_picture_ptr= &s->m.current_picture; - if(pict->pict_type == FF_P_TYPE){ + s->m.last_picture.pts= s->m.current_picture.pts; + s->m.current_picture.pts= pict->pts; + if(pict->pict_type == AV_PICTURE_TYPE_P){ int block_width = (width +15)>>4; int block_height= (height+15)>>4; int stride= s->current_picture.linesize[0]; @@ -4252,13 +3803,13 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, redo_frame: - if(pict->pict_type == FF_I_TYPE) + if(pict->pict_type == AV_PICTURE_TYPE_I) s->spatial_decomposition_count= 5; else s->spatial_decomposition_count= 5; s->m.pict_type = pict->pict_type; - s->qbias= pict->pict_type == FF_P_TYPE ? 2 : 0; + s->qbias= pict->pict_type == AV_PICTURE_TYPE_P ? 2 : 0; common_init_after_header(avctx); @@ -4291,12 +3842,12 @@ redo_frame: predict_plane(s, s->spatial_idwt_buffer, plane_index, 0); if( plane_index==0 - && pict->pict_type == FF_P_TYPE + && pict->pict_type == AV_PICTURE_TYPE_P && !(avctx->flags&CODEC_FLAG_PASS2) && s->m.me.scene_change_score > s->avctx->scenechange_threshold){ ff_init_range_encoder(c, buf, buf_size); ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - pict->pict_type= FF_I_TYPE; + pict->pict_type= AV_PICTURE_TYPE_I; s->keyframe=1; s->current_picture.key_frame=1; goto redo_frame; @@ -4342,7 +3893,7 @@ redo_frame: if(!QUANTIZE2) quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias); if(orientation==0) - decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == FF_P_TYPE, 0); + decorrelate(s, b, b->ibuf, b->stride, pict->pict_type == AV_PICTURE_TYPE_P, 0); encode_subband(s, b, b->ibuf, b->parent ? b->parent->ibuf : NULL, b->stride, orientation); assert(b->parent==NULL || b->parent->stride == b->stride*2); if(orientation==0) @@ -4369,7 +3920,7 @@ redo_frame: predict_plane(s, s->spatial_idwt_buffer, plane_index, 1); }else{ //ME/MC only - if(pict->pict_type == FF_I_TYPE){ + if(pict->pict_type == AV_PICTURE_TYPE_I){ for(y=0; ycurrent_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]= @@ -4399,12 +3950,7 @@ redo_frame: update_last_header_values(s); - if(s->last_picture[s->max_ref_frames-1].data[0]){ - avctx->release_buffer(avctx, &s->last_picture[s->max_ref_frames-1]); - for(i=0; i<9; i++) - if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) - av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture.linesize[i%3])); - } + release_buffer(avctx); s->current_picture.coded_picture_number = avctx->frame_number; s->current_picture.pict_type = pict->pict_type; @@ -4431,250 +3977,21 @@ redo_frame: return ff_rac_terminate(c); } -static av_cold void common_end(SnowContext *s){ - int plane_index, level, orientation, i; - - av_freep(&s->spatial_dwt_buffer); - av_freep(&s->spatial_idwt_buffer); - - s->m.me.temp= NULL; - av_freep(&s->m.me.scratchpad); - av_freep(&s->m.me.map); - av_freep(&s->m.me.score_map); - av_freep(&s->m.obmc_scratchpad); - - av_freep(&s->block); - av_freep(&s->scratchbuf); - - for(i=0; iref_mvs[i]); - av_freep(&s->ref_scores[i]); - if(s->last_picture[i].data[0]) - s->avctx->release_buffer(s->avctx, &s->last_picture[i]); - } - - for(plane_index=0; plane_index<3; plane_index++){ - for(level=s->spatial_decomposition_count-1; level>=0; level--){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &s->plane[plane_index].band[level][orientation]; - - av_freep(&b->x_coeff); - } - } - } -} - static av_cold int encode_end(AVCodecContext *avctx) { SnowContext *s = avctx->priv_data; common_end(s); + if (s->input_picture.data[0]) + avctx->release_buffer(avctx, &s->input_picture); av_free(avctx->stats_out); return 0; } -static av_cold int decode_init(AVCodecContext *avctx) -{ - avctx->pix_fmt= PIX_FMT_YUV420P; - - common_init(avctx); - - return 0; -} - -static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size){ - SnowContext *s = avctx->priv_data; - RangeCoder * const c= &s->c; - int bytes_read; - AVFrame *picture = data; - int level, orientation, plane_index, i; - - ff_init_range_decoder(c, buf, buf_size); - ff_build_rac_states(c, 0.05*(1LL<<32), 256-8); - - s->current_picture.pict_type= FF_I_TYPE; //FIXME I vs. P - if(decode_header(s)<0) - return -1; - common_init_after_header(avctx); - - // realloc slice buffer for the case that spatial_decomposition_count changed - slice_buffer_destroy(&s->sb); - slice_buffer_init(&s->sb, s->plane[0].height, (MB_SIZE >> s->block_max_depth) + s->spatial_decomposition_count * 8 + 1, s->plane[0].width, s->spatial_idwt_buffer); - - for(plane_index=0; plane_index<3; plane_index++){ - Plane *p= &s->plane[plane_index]; - p->fast_mc= p->diag_mc && p->htaps==6 && p->hcoeff[0]==40 - && p->hcoeff[1]==-10 - && p->hcoeff[2]==2; - } - - if(!s->block) alloc_blocks(s); - - frame_start(s); - //keyframe flag duplication mess FIXME - if(avctx->debug&FF_DEBUG_PICT_INFO) - av_log(avctx, AV_LOG_ERROR, "keyframe:%d qlog:%d\n", s->keyframe, s->qlog); - - decode_blocks(s); - - for(plane_index=0; plane_index<3; plane_index++){ - Plane *p= &s->plane[plane_index]; - int w= p->width; - int h= p->height; - int x, y; - int decode_state[MAX_DECOMPOSITIONS][4][1]; /* Stored state info for unpack_coeffs. 1 variable per instance. */ - - if(s->avctx->debug&2048){ - memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h); - predict_plane(s, s->spatial_idwt_buffer, plane_index, 1); - - for(y=0; ycurrent_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]; - s->mconly_picture.data[plane_index][y*s->mconly_picture.linesize[plane_index] + x]= v; - } - } - } - - { - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - unpack_coeffs(s, b, b->parent, orientation); - } - } - } - - { - const int mb_h= s->b_height << s->block_max_depth; - const int block_size = MB_SIZE >> s->block_max_depth; - const int block_w = plane_index ? block_size/2 : block_size; - int mb_y; - DWTCompose cs[MAX_DECOMPOSITIONS]; - int yd=0, yq=0; - int y; - int end_y; - - ff_spatial_idwt_buffered_init(cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count); - for(mb_y=0; mb_y<=mb_h; mb_y++){ - - int slice_starty = block_w*mb_y; - int slice_h = block_w*(mb_y+1); - if (!(s->keyframe || s->avctx->debug&512)){ - slice_starty = FFMAX(0, slice_starty - (block_w >> 1)); - slice_h -= (block_w >> 1); - } - - for(level=0; levelspatial_decomposition_count; level++){ - for(orientation=level ? 1 : 0; orientation<4; orientation++){ - SubBand *b= &p->band[level][orientation]; - int start_y; - int end_y; - int our_mb_start = mb_y; - int our_mb_end = (mb_y + 1); - const int extra= 3; - start_y = (mb_y ? ((block_w * our_mb_start) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra: 0); - end_y = (((block_w * our_mb_end) >> (s->spatial_decomposition_count - level)) + s->spatial_decomposition_count - level + extra); - if (!(s->keyframe || s->avctx->debug&512)){ - start_y = FFMAX(0, start_y - (block_w >> (1+s->spatial_decomposition_count - level))); - end_y = FFMAX(0, end_y - (block_w >> (1+s->spatial_decomposition_count - level))); - } - start_y = FFMIN(b->height, start_y); - end_y = FFMIN(b->height, end_y); - - if (start_y != end_y){ - if (orientation == 0){ - SubBand * correlate_band = &p->band[0][0]; - int correlate_end_y = FFMIN(b->height, end_y + 1); - int correlate_start_y = FFMIN(b->height, (start_y ? start_y + 1 : 0)); - decode_subband_slice_buffered(s, correlate_band, &s->sb, correlate_start_y, correlate_end_y, decode_state[0][0]); - correlate_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, 1, 0, correlate_start_y, correlate_end_y); - dequantize_slice_buffered(s, &s->sb, correlate_band, correlate_band->ibuf, correlate_band->stride, start_y, end_y); - } - else - decode_subband_slice_buffered(s, b, &s->sb, start_y, end_y, decode_state[level][orientation]); - } - } - } - - for(; yddsp, cs, &s->sb, w, h, 1, s->spatial_decomposition_type, s->spatial_decomposition_count, yd); - } - - if(s->qlog == LOSSLESS_QLOG){ - for(; yqsb, yq); - for(x=0; xsb, s->spatial_idwt_buffer, plane_index, 1, mb_y); - - y = FFMIN(p->height, slice_starty); - end_y = FFMIN(p->height, slice_h); - while(y < end_y) - slice_buffer_release(&s->sb, y++); - } - - slice_buffer_flush(&s->sb); - } - - } - - emms_c(); - - if(s->last_picture[s->max_ref_frames-1].data[0]){ - avctx->release_buffer(avctx, &s->last_picture[s->max_ref_frames-1]); - for(i=0; i<9; i++) - if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) - av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture.linesize[i%3])); - } - - if(!(s->avctx->debug&2048)) - *picture= s->current_picture; - else - *picture= s->mconly_picture; - - *data_size = sizeof(AVFrame); - - bytes_read= c->bytestream - c->bytestream_start; - if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); //FIXME - - return bytes_read; -} - -static av_cold int decode_end(AVCodecContext *avctx) -{ - SnowContext *s = avctx->priv_data; - - slice_buffer_destroy(&s->sb); - - common_end(s); - - return 0; -} - -AVCodec snow_decoder = { - "snow", - CODEC_TYPE_VIDEO, - CODEC_ID_SNOW, - sizeof(SnowContext), - decode_init, - NULL, - decode_end, - decode_frame, - 0 /*CODEC_CAP_DR1*/ /*| CODEC_CAP_DRAW_HORIZ_BAND*/, - NULL, - .long_name = NULL_IF_CONFIG_SMALL("Snow"), -}; - -#if CONFIG_SNOW_ENCODER -AVCodec snow_encoder = { +AVCodec ff_snow_encoder = { "snow", - CODEC_TYPE_VIDEO, + AVMEDIA_TYPE_VIDEO, CODEC_ID_SNOW, sizeof(SnowContext), encode_init, @@ -4698,15 +4015,15 @@ int main(void){ int buffer[2][width*height]; SnowContext s; int i; - AVLFG prn; + AVLFG prng; s.spatial_decomposition_count=6; s.spatial_decomposition_type=1; - av_lfg_init(&prn, 1); + av_lfg_init(&prng, 1); printf("testing 5/3 DWT\n"); for(i=0; i