X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fdv.c;h=a43e6e43b62993ae5ca1b184cc3262fa04c6594a;hb=bd4110f99b6c4ce3a7fc134206404489dc8e41a6;hp=4d79b2cc5333ba209bb8c6f686baedaa20cf5530;hpb=d2d230a7569154306a1625ca37dbfa4c36627ec6;p=ffmpeg diff --git a/libavcodec/dv.c b/libavcodec/dv.c index 4d79b2cc533..a43e6e43b62 100644 --- a/libavcodec/dv.c +++ b/libavcodec/dv.c @@ -1,36 +1,47 @@ /* * DV decoder - * Copyright (c) 2002 Fabrice Bellard. - * Copyright (c) 2004 Roman Shaposhnik. + * Copyright (c) 2002 Fabrice Bellard + * Copyright (c) 2004 Roman Shaposhnik * * DV encoder - * Copyright (c) 2003 Roman Shaposhnik. + * Copyright (c) 2003 Roman Shaposhnik + * + * 50 Mbps (DVCPRO50) support + * Copyright (c) 2006 Daniel Maas + * + * 100 Mbps (DVCPRO HD) support + * Initial code by Daniel Maas (funded by BBC R&D) + * Final code by Roman Shaposhnik * * Many thanks to Dan Dennedy for providing wealth * of DV technical info. * - * This library is free software; you can redistribute it and/or + * This file is part of FFmpeg. + * + * FFmpeg 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 of the License, or (at your option) any later version. + * version 2.1 of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * FFmpeg 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 this library; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file dv.c + * @file libavcodec/dv.c * DV codec. */ +#define ALT_BITSTREAM_READER #include "avcodec.h" #include "dsputil.h" -#include "mpegvideo.h" +#include "get_bits.h" +#include "put_bits.h" #include "simple_idct.h" #include "dvdata.h" @@ -38,25 +49,22 @@ //#include typedef struct DVVideoContext { - const DVprofile* sys; - AVFrame picture; - AVCodecContext *avctx; - uint8_t *buf; + const DVprofile *sys; + AVFrame picture; + AVCodecContext *avctx; + uint8_t *buf; - uint8_t dv_zigzag[2][64]; - uint8_t dv_idct_shift[2][2][22][64]; + uint8_t dv_zigzag[2][64]; void (*get_pixels)(DCTELEM *block, const uint8_t *pixels, int line_size); void (*fdct[2])(DCTELEM *block); void (*idct_put[2])(uint8_t *dest, int line_size, DCTELEM *block); + me_cmp_func ildct_cmp; } DVVideoContext; -/* MultiThreading - applies to entire DV codec, not just the avcontext */ -uint8_t** dv_anchor; - #define TEX_VLC_BITS 9 -#ifdef DV_CODEC_TINY_TARGET +#if CONFIG_SMALL #define DV_VLC_MAP_RUN_SIZE 15 #define DV_VLC_MAP_LEV_SIZE 23 #else @@ -65,71 +73,220 @@ uint8_t** dv_anchor; #endif /* XXX: also include quantization */ -static RL_VLC_ELEM *dv_rl_vlc; +static RL_VLC_ELEM dv_rl_vlc[1184]; /* VLC encoding lookup table */ static struct dv_vlc_pair { uint32_t vlc; uint8_t size; -} (*dv_vlc_map)[DV_VLC_MAP_LEV_SIZE] = NULL; +} dv_vlc_map[DV_VLC_MAP_RUN_SIZE][DV_VLC_MAP_LEV_SIZE]; + +static inline int dv_work_pool_size(const DVprofile *d) +{ + int size = d->n_difchan*d->difseg_size*27; + if (DV_PROFILE_IS_1080i50(d)) + size -= 3*27; + if (DV_PROFILE_IS_720p50(d)) + size -= 4*27; + return size; +} + +static inline void dv_calc_mb_coordinates(const DVprofile *d, int chan, int seq, int slot, + uint16_t *tbl) +{ + static const uint8_t off[] = { 2, 6, 8, 0, 4 }; + static const uint8_t shuf1[] = { 36, 18, 54, 0, 72 }; + static const uint8_t shuf2[] = { 24, 12, 36, 0, 48 }; + static const uint8_t shuf3[] = { 18, 9, 27, 0, 36 }; + + static const uint8_t l_start[] = {0, 4, 9, 13, 18, 22, 27, 31, 36, 40}; + static const uint8_t l_start_shuffled[] = { 9, 4, 13, 0, 18 }; + + static const uint8_t serpent1[] = {0, 1, 2, 2, 1, 0, + 0, 1, 2, 2, 1, 0, + 0, 1, 2, 2, 1, 0, + 0, 1, 2, 2, 1, 0, + 0, 1, 2}; + static const uint8_t serpent2[] = {0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0, + 0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0, + 0, 1, 2, 3, 4, 5}; + + static const uint8_t remap[][2] = {{ 0, 0}, { 0, 0}, { 0, 0}, { 0, 0}, /* dummy */ + { 0, 0}, { 0, 1}, { 0, 2}, { 0, 3}, {10, 0}, + {10, 1}, {10, 2}, {10, 3}, {20, 0}, {20, 1}, + {20, 2}, {20, 3}, {30, 0}, {30, 1}, {30, 2}, + {30, 3}, {40, 0}, {40, 1}, {40, 2}, {40, 3}, + {50, 0}, {50, 1}, {50, 2}, {50, 3}, {60, 0}, + {60, 1}, {60, 2}, {60, 3}, {70, 0}, {70, 1}, + {70, 2}, {70, 3}, { 0,64}, { 0,65}, { 0,66}, + {10,64}, {10,65}, {10,66}, {20,64}, {20,65}, + {20,66}, {30,64}, {30,65}, {30,66}, {40,64}, + {40,65}, {40,66}, {50,64}, {50,65}, {50,66}, + {60,64}, {60,65}, {60,66}, {70,64}, {70,65}, + {70,66}, { 0,67}, {20,67}, {40,67}, {60,67}}; + + int i, k, m; + int x, y, blk; + + for (m=0; m<5; m++) { + switch (d->width) { + case 1440: + blk = (chan*11+seq)*27+slot; + + if (chan == 0 && seq == 11) { + x = m*27+slot; + if (x<90) { + y = 0; + } else { + x = (x - 90)*2; + y = 67; + } + } else { + i = (4*chan + blk + off[m])%11; + k = (blk/11)%27; + + x = shuf1[m] + (chan&1)*9 + k%9; + y = (i*3+k/9)*2 + (chan>>1) + 1; + } + tbl[m] = (x<<1)|(y<<9); + break; + case 1280: + blk = (chan*10+seq)*27+slot; + + i = (4*chan + (seq/5) + 2*blk + off[m])%10; + k = (blk/5)%27; + + x = shuf1[m]+(chan&1)*9 + k%9; + y = (i*3+k/9)*2 + (chan>>1) + 4; + + if (x >= 80) { + x = remap[y][0]+((x-80)<<(y>59)); + y = remap[y][1]; + } + tbl[m] = (x<<1)|(y<<9); + break; + case 960: + blk = (chan*10+seq)*27+slot; + + i = (4*chan + (seq/5) + 2*blk + off[m])%10; + k = (blk/5)%27 + (i&1)*3; + + x = shuf2[m] + k%6 + 6*(chan&1); + y = l_start[i] + k/6 + 45*(chan>>1); + tbl[m] = (x<<1)|(y<<9); + break; + case 720: + switch (d->pix_fmt) { + case PIX_FMT_YUV422P: + x = shuf3[m] + slot/3; + y = serpent1[slot] + + ((((seq + off[m]) % d->difseg_size)<<1) + chan)*3; + tbl[m] = (x<<1)|(y<<8); + break; + case PIX_FMT_YUV420P: + x = shuf3[m] + slot/3; + y = serpent1[slot] + + ((seq + off[m]) % d->difseg_size)*3; + tbl[m] = (x<<1)|(y<<9); + break; + case PIX_FMT_YUV411P: + i = (seq + off[m]) % d->difseg_size; + k = slot + ((m==1||m==2)?3:0); + + x = l_start_shuffled[m] + k/6; + y = serpent2[k] + i*6; + if (x>21) + y = y*2 - i*6; + tbl[m] = (x<<2)|(y<<8); + break; + } + default: + break; + } + } +} -static void dv_build_unquantize_tables(DVVideoContext *s, uint8_t* perm) +static int dv_init_dynamic_tables(const DVprofile *d) { - int i, q, j; - - /* NOTE: max left shift is 6 */ - for(q = 0; q < 22; q++) { - /* 88DCT */ - for(i = 1; i < 64; i++) { - /* 88 table */ - j = perm[i]; - s->dv_idct_shift[0][0][q][j] = - dv_quant_shifts[q][dv_88_areas[i]] + 1; - s->dv_idct_shift[1][0][q][j] = s->dv_idct_shift[0][0][q][j] + 1; + int j,i,c,s,p; + uint32_t *factor1, *factor2; + const int *iweight1, *iweight2; + + if (!d->work_chunks[dv_work_pool_size(d)-1].buf_offset) { + p = i = 0; + for (c=0; cn_difchan; c++) { + for (s=0; sdifseg_size; s++) { + p += 6; + for (j=0; j<27; j++) { + p += !(j%3); + if (!(DV_PROFILE_IS_1080i50(d) && c != 0 && s == 11) && + !(DV_PROFILE_IS_720p50(d) && s > 9)) { + dv_calc_mb_coordinates(d, c, s, j, &d->work_chunks[i].mb_coordinates[0]); + d->work_chunks[i++].buf_offset = p; + } + p += 5; + } + } } + } - /* 248DCT */ - for(i = 1; i < 64; i++) { - /* 248 table */ - s->dv_idct_shift[0][1][q][i] = - dv_quant_shifts[q][dv_248_areas[i]] + 1; - s->dv_idct_shift[1][1][q][i] = s->dv_idct_shift[0][1][q][i] + 1; + if (!d->idct_factor[DV_PROFILE_IS_HD(d)?8191:5631]) { + factor1 = &d->idct_factor[0]; + factor2 = &d->idct_factor[DV_PROFILE_IS_HD(d)?4096:2816]; + if (d->height == 720) { + iweight1 = &dv_iweight_720_y[0]; + iweight2 = &dv_iweight_720_c[0]; + } else { + iweight1 = &dv_iweight_1080_y[0]; + iweight2 = &dv_iweight_1080_c[0]; + } + if (DV_PROFILE_IS_HD(d)) { + for (c = 0; c < 4; c++) { + for (s = 0; s < 16; s++) { + for (i = 0; i < 64; i++) { + *factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i]; + *factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i]; + } + } + } + } else { + iweight1 = &dv_iweight_88[0]; + for (j = 0; j < 2; j++, iweight1 = &dv_iweight_248[0]) { + for (s = 0; s < 22; s++) { + for (i = c = 0; c < 4; c++) { + for (; i < dv_quant_areas[c]; i++) { + *factor1 = iweight1[i] << (dv_quant_shifts[s][c] + 1); + *factor2++ = (*factor1++) << 1; + } + } + } } } } -static int dvvideo_init(AVCodecContext *avctx) + return 0; +} + +static av_cold int dvvideo_init(AVCodecContext *avctx) { DVVideoContext *s = avctx->priv_data; DSPContext dsp; - static int done=0; + static int done = 0; int i, j; if (!done) { VLC dv_vlc; uint16_t new_dv_vlc_bits[NB_DV_VLC*2]; - uint8_t new_dv_vlc_len[NB_DV_VLC*2]; - uint8_t new_dv_vlc_run[NB_DV_VLC*2]; - int16_t new_dv_vlc_level[NB_DV_VLC*2]; + uint8_t new_dv_vlc_len[NB_DV_VLC*2]; + uint8_t new_dv_vlc_run[NB_DV_VLC*2]; + int16_t new_dv_vlc_level[NB_DV_VLC*2]; done = 1; - dv_vlc_map = av_mallocz_static(DV_VLC_MAP_LEV_SIZE*DV_VLC_MAP_RUN_SIZE*sizeof(struct dv_vlc_pair)); - if (!dv_vlc_map) - return -ENOMEM; - - /* dv_anchor lets each thread know its Id */ - dv_anchor = av_malloc(12*27*sizeof(void*)); - if (!dv_anchor) { - return -ENOMEM; - } - for (i=0; i<12*27; i++) - dv_anchor[i] = (void*)(size_t)i; - /* it's faster to include sign bit in a generic VLC parsing scheme */ - for (i=0, j=0; i= DV_VLC_MAP_RUN_SIZE) continue; -#ifdef DV_CODEC_TINY_TARGET +#if CONFIG_SMALL if (dv_vlc_level[i] >= DV_VLC_MAP_LEV_SIZE) continue; #endif @@ -182,13 +336,13 @@ static int dvvideo_init(AVCodecContext *avctx) if (dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size != 0) continue; - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = dv_vlc_bits[i] << - (!!dv_vlc_level[i]); - dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = dv_vlc_len[i] + - (!!dv_vlc_level[i]); + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].vlc = + dv_vlc_bits[i] << (!!dv_vlc_level[i]); + dv_vlc_map[dv_vlc_run[i]][dv_vlc_level[i]].size = + dv_vlc_len[i] + (!!dv_vlc_level[i]); } for (i = 0; i < DV_VLC_MAP_RUN_SIZE; i++) { -#ifdef DV_CODEC_TINY_TARGET +#if CONFIG_SMALL for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) { if (dv_vlc_map[i][j].size == 0) { dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc | @@ -216,33 +370,29 @@ static int dvvideo_init(AVCodecContext *avctx) /* Generic DSP setup */ dsputil_init(&dsp, avctx); + ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp); s->get_pixels = dsp.get_pixels; + s->ildct_cmp = dsp.ildct_cmp[5]; /* 88DCT setup */ - s->fdct[0] = dsp.fdct; + s->fdct[0] = dsp.fdct; s->idct_put[0] = dsp.idct_put; - for (i=0; i<64; i++) + for (i = 0; i < 64; i++) s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]]; /* 248DCT setup */ - s->fdct[1] = dsp.fdct248; - s->idct_put[1] = simple_idct248_put; // FIXME: need to add it to DSP - if(avctx->lowres){ - for (i=0; i<64; i++){ - int j= ff_zigzag248_direct[i]; - s->dv_zigzag[1][i] = dsp.idct_permutation[(j&7) + (j&8)*4 + (j&48)/2]; + s->fdct[1] = dsp.fdct248; + s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP + if (avctx->lowres){ + for (i = 0; i < 64; i++){ + int j = ff_zigzag248_direct[i]; + s->dv_zigzag[1][i] = dsp.idct_permutation[(j & 7) + (j & 8) * 4 + (j & 48) / 2]; } }else memcpy(s->dv_zigzag[1], ff_zigzag248_direct, 64); - /* XXX: do it only for constant case */ - dv_build_unquantize_tables(s, dsp.idct_permutation); - - /* FIXME: I really don't think this should be here */ - if (dv_codec_profile(avctx)) - avctx->pix_fmt = dv_codec_profile(avctx)->pix_fmt; avctx->coded_frame = &s->picture; - s->avctx= avctx; + s->avctx = avctx; return 0; } @@ -251,53 +401,39 @@ static int dvvideo_init(AVCodecContext *avctx) // #define printf(...) av_log(NULL, AV_LOG_ERROR, __VA_ARGS__) typedef struct BlockInfo { - const uint8_t *shift_table; + const uint32_t *factor_table; const uint8_t *scan_table; uint8_t pos; /* position in block */ - uint8_t dct_mode; + void (*idct_put)(uint8_t *dest, int line_size, DCTELEM *block); uint8_t partial_bit_count; uint16_t partial_bit_buffer; int shift_offset; } BlockInfo; -/* block size in bits */ -static const uint16_t block_sizes[6] = { - 112, 112, 112, 112, 80, 80 -}; /* bit budget for AC only in 5 MBs */ static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5; /* see dv_88_areas and dv_248_areas for details */ static const int mb_area_start[5] = { 1, 6, 21, 43, 64 }; -#ifndef ALT_BITSTREAM_READER -#warning only works with ALT_BITSTREAM_READER -static int re_index; //Hack to make it compile -#endif - static inline int get_bits_left(GetBitContext *s) { return s->size_in_bits - get_bits_count(s); } -static inline int get_bits_size(GetBitContext *s) -{ - return s->size_in_bits; -} - static inline int put_bits_left(PutBitContext* s) { return (s->buf_end - s->buf) * 8 - put_bits_count(s); } -/* decode ac coefs */ +/* decode ac coefficients */ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) { - int last_index = get_bits_size(gb); - const uint8_t *scan_table = mb->scan_table; - const uint8_t *shift_table = mb->shift_table; - int pos = mb->pos; + int last_index = gb->size_in_bits; + const uint8_t *scan_table = mb->scan_table; + const uint32_t *factor_table = mb->factor_table; + int pos = mb->pos; int partial_bit_count = mb->partial_bit_count; - int level, pos1, run, vlc_len, index; + int level, run, vlc_len, index; OPEN_READER(re, gb); UPDATE_CACHE(re, gb); @@ -305,25 +441,25 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) /* if we must parse a partial vlc, we do it here */ if (partial_bit_count > 0) { re_cache = ((unsigned)re_cache >> partial_bit_count) | - (mb->partial_bit_buffer << (sizeof(re_cache)*8 - partial_bit_count)); + (mb->partial_bit_buffer << (sizeof(re_cache) * 8 - partial_bit_count)); re_index -= partial_bit_count; mb->partial_bit_count = 0; } /* get the AC coefficients until last_index is reached */ - for(;;) { + for (;;) { #ifdef VLC_DEBUG printf("%2d: bits=%04x index=%d\n", pos, SHOW_UBITS(re, gb, 16), re_index); #endif /* our own optimized GET_RL_VLC */ - index = NEG_USR32(re_cache, TEX_VLC_BITS); + index = NEG_USR32(re_cache, TEX_VLC_BITS); vlc_len = dv_rl_vlc[index].len; if (vlc_len < 0) { index = NEG_USR32((unsigned)re_cache << TEX_VLC_BITS, -vlc_len) + dv_rl_vlc[index].level; vlc_len = TEX_VLC_BITS - vlc_len; } level = dv_rl_vlc[index].level; - run = dv_rl_vlc[index].run; + run = dv_rl_vlc[index].run; /* gotta check if we're still within gb boundaries */ if (re_index + vlc_len > last_index) { @@ -342,9 +478,8 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block) if (pos >= 64) break; - assert(level); - pos1 = scan_table[pos]; - block[pos1] = level << shift_table[pos1]; + level = (level * factor_table[pos] + (1 << (dv_iweight_bits - 1))) >> dv_iweight_bits; + block[scan_table[pos]] = level; UPDATE_CACHE(re, gb); } @@ -364,62 +499,82 @@ static inline void bit_copy(PutBitContext *pb, GetBitContext *gb) } } +static inline void dv_calculate_mb_xy(DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y) +{ + *mb_x = work_chunk->mb_coordinates[m] & 0xff; + *mb_y = work_chunk->mb_coordinates[m] >> 8; + + /* We work with 720p frames split in half. The odd half-frame (chan==2,3) is displaced :-( */ + if (s->sys->height == 720 && !(s->buf[1]&0x0C)) { + *mb_y -= (*mb_y>17)?18:-72; /* shifting the Y coordinate down by 72/2 macro blocks */ + } +} + /* mb_x and mb_y are in units of 8 pixels */ -static inline void dv_decode_video_segment(DVVideoContext *s, - uint8_t *buf_ptr1, - const uint16_t *mb_pos_ptr) +static int dv_decode_video_segment(AVCodecContext *avctx, void *arg) { + DVVideoContext *s = avctx->priv_data; + DVwork_chunk *work_chunk = arg; int quant, dc, dct_mode, class1, j; - int mb_index, mb_x, mb_y, v, last_index; + int mb_index, mb_x, mb_y, last_index; + int y_stride, linesize; DCTELEM *block, *block1; int c_offset; uint8_t *y_ptr; - void (*idct_put)(uint8_t *dest, int line_size, DCTELEM *block); - uint8_t *buf_ptr; + const uint8_t *buf_ptr; PutBitContext pb, vs_pb; GetBitContext gb; - BlockInfo mb_data[5 * 6], *mb, *mb1; - DECLARE_ALIGNED_8(DCTELEM, sblock[5*6][64]); + BlockInfo mb_data[5 * DV_MAX_BPM], *mb, *mb1; + DECLARE_ALIGNED_16(DCTELEM, sblock[5*DV_MAX_BPM][64]); DECLARE_ALIGNED_8(uint8_t, mb_bit_buffer[80 + 4]); /* allow some slack */ DECLARE_ALIGNED_8(uint8_t, vs_bit_buffer[5 * 80 + 4]); /* allow some slack */ - const int log2_blocksize= 3-s->avctx->lowres; + const int log2_blocksize = 3-s->avctx->lowres; + int is_field_mode[5]; - assert((((int)mb_bit_buffer)&7)==0); - assert((((int)vs_bit_buffer)&7)==0); + assert((((int)mb_bit_buffer) & 7) == 0); + assert((((int)vs_bit_buffer) & 7) == 0); memset(sblock, 0, sizeof(sblock)); /* pass 1 : read DC and AC coefficients in blocks */ - buf_ptr = buf_ptr1; - block1 = &sblock[0][0]; - mb1 = mb_data; + buf_ptr = &s->buf[work_chunk->buf_offset*80]; + block1 = &sblock[0][0]; + mb1 = mb_data; init_put_bits(&vs_pb, vs_bit_buffer, 5 * 80); - for(mb_index = 0; mb_index < 5; mb_index++, mb1 += 6, block1 += 6 * 64) { + for (mb_index = 0; mb_index < 5; mb_index++, mb1 += s->sys->bpm, block1 += s->sys->bpm * 64) { /* skip header */ quant = buf_ptr[3] & 0x0f; buf_ptr += 4; init_put_bits(&pb, mb_bit_buffer, 80); - mb = mb1; + mb = mb1; block = block1; - for(j = 0;j < 6; j++) { - last_index = block_sizes[j]; + is_field_mode[mb_index] = 0; + for (j = 0; j < s->sys->bpm; j++) { + last_index = s->sys->block_sizes[j]; init_get_bits(&gb, buf_ptr, last_index); /* get the dc */ - dc = get_sbits(&gb, 9); + dc = get_sbits(&gb, 9); dct_mode = get_bits1(&gb); - mb->dct_mode = dct_mode; - mb->scan_table = s->dv_zigzag[dct_mode]; - class1 = get_bits(&gb, 2); - mb->shift_table = s->dv_idct_shift[class1 == 3][dct_mode] - [quant + dv_quant_offset[class1]]; + class1 = get_bits(&gb, 2); + if (DV_PROFILE_IS_HD(s->sys)) { + mb->idct_put = s->idct_put[0]; + mb->scan_table = s->dv_zigzag[0]; + mb->factor_table = &s->sys->idct_factor[(j >= 4)*4*16*64 + class1*16*64 + quant*64]; + is_field_mode[mb_index] |= !j && dct_mode; + } else { + mb->idct_put = s->idct_put[dct_mode && log2_blocksize == 3]; + mb->scan_table = s->dv_zigzag[dct_mode]; + mb->factor_table = &s->sys->idct_factor[(class1 == 3)*2*22*64 + dct_mode*22*64 + + (quant + dv_quant_offset[class1])*64]; + } dc = dc << 2; /* convert to unsigned because 128 is not added in the standard IDCT */ dc += 1024; block[0] = dc; buf_ptr += last_index >> 3; - mb->pos = 0; + mb->pos = 0; mb->partial_bit_count = 0; #ifdef VLC_DEBUG @@ -441,10 +596,10 @@ static inline void dv_decode_video_segment(DVVideoContext *s, printf("***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index); #endif block = block1; - mb = mb1; + mb = mb1; init_get_bits(&gb, mb_bit_buffer, put_bits_count(&pb)); flush_put_bits(&pb); - for(j = 0;j < 6; j++, block += 64, mb++) { + for (j = 0; j < s->sys->bpm; j++, block += 64, mb++) { if (mb->pos < 64 && get_bits_left(&gb) > 0) { dv_decode_ac(&gb, mb, block); /* if still not finished, no need to parse other blocks */ @@ -454,7 +609,7 @@ static inline void dv_decode_video_segment(DVVideoContext *s, } /* all blocks are finished, so the extra bytes can be used at the video segment level */ - if (j >= 6) + if (j >= s->sys->bpm) bit_copy(&vs_pb, &gb); } @@ -463,11 +618,11 @@ static inline void dv_decode_video_segment(DVVideoContext *s, printf("***pass 3 size=%d\n", put_bits_count(&vs_pb)); #endif block = &sblock[0][0]; - mb = mb_data; + mb = mb_data; init_get_bits(&gb, vs_bit_buffer, put_bits_count(&vs_pb)); flush_put_bits(&vs_pb); - for(mb_index = 0; mb_index < 5; mb_index++) { - for(j = 0;j < 6; j++) { + for (mb_index = 0; mb_index < 5; mb_index++) { + for (j = 0; j < s->sys->bpm; j++) { if (mb->pos < 64) { #ifdef VLC_DEBUG printf("start %d:%d\n", mb_index, j); @@ -483,61 +638,68 @@ static inline void dv_decode_video_segment(DVVideoContext *s, /* compute idct and place blocks */ block = &sblock[0][0]; - mb = mb_data; - for(mb_index = 0; mb_index < 5; mb_index++) { - v = *mb_pos_ptr++; - mb_x = v & 0xff; - mb_y = v >> 8; - y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x)<sys->pix_fmt == PIX_FMT_YUV411P) - c_offset = ((mb_y * s->picture.linesize[1] + (mb_x >> 2))<> 1) * s->picture.linesize[1] + (mb_x >> 1))<idct_put[mb->dct_mode && log2_blocksize==3]; - if (j < 4) { - if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) { - /* NOTE: at end of line, the macroblock is handled as 420 */ - idct_put(y_ptr + (j<picture.linesize[0], block); - } else { - idct_put(y_ptr + (((j & 1) + (j >> 1) * s->picture.linesize[0])<picture.linesize[0], block); - } + mb = mb_data; + for (mb_index = 0; mb_index < 5; mb_index++) { + dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y); + + /* idct_put'ting luminance */ + if ((s->sys->pix_fmt == PIX_FMT_YUV420P) || + (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) || + (s->sys->height >= 720 && mb_y != 134)) { + y_stride = (s->picture.linesize[0] << ((!is_field_mode[mb_index]) * log2_blocksize)); + } else { + y_stride = (2 << log2_blocksize); + } + y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << log2_blocksize); + linesize = s->picture.linesize[0] << is_field_mode[mb_index]; + mb[0] .idct_put(y_ptr , linesize, block + 0*64); + if (s->sys->video_stype == 4) { /* SD 422 */ + mb[2].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 2*64); + } else { + mb[1].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 1*64); + mb[2].idct_put(y_ptr + y_stride, linesize, block + 2*64); + mb[3].idct_put(y_ptr + (1 << log2_blocksize) + y_stride, linesize, block + 3*64); + } + mb += 4; + block += 4*64; + + /* idct_put'ting chrominance */ + c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] + + (mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << log2_blocksize); + for (j = 2; j; j--) { + uint8_t *c_ptr = s->picture.data[j] + c_offset; + if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) { + uint64_t aligned_pixels[64/8]; + uint8_t *pixels = (uint8_t*)aligned_pixels; + uint8_t *c_ptr1, *ptr1; + int x, y; + mb->idct_put(pixels, 8, block); + for (y = 0; y < (1 << log2_blocksize); y++, c_ptr += s->picture.linesize[j], pixels += 8) { + ptr1 = pixels + (1 << (log2_blocksize - 1)); + c_ptr1 = c_ptr + (s->picture.linesize[j] << log2_blocksize); + for (x = 0; x < (1 << (log2_blocksize - 1)); x++) { + c_ptr[x] = pixels[x]; + c_ptr1[x] = ptr1[x]; + } + } + block += 64; mb++; } else { - if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) { - uint64_t aligned_pixels[64/8]; - uint8_t *pixels= (uint8_t*)aligned_pixels; - uint8_t *c_ptr, *c_ptr1, *ptr, *ptr1; - int x, y, linesize; - /* NOTE: at end of line, the macroblock is handled as 420 */ - idct_put(pixels, 8, block); - linesize = s->picture.linesize[6 - j]; - c_ptr = s->picture.data[6 - j] + c_offset; - ptr = pixels; - for(y = 0;y < (1<picture.data[6 - j] + c_offset, - s->picture.linesize[6 - j], block); - } + y_stride = (mb_y == 134) ? (1 << log2_blocksize) : + s->picture.linesize[j] << ((!is_field_mode[mb_index]) * log2_blocksize); + linesize = s->picture.linesize[j] << is_field_mode[mb_index]; + (mb++)-> idct_put(c_ptr , linesize, block); block += 64; + if (s->sys->bpm == 8) { + (mb++)->idct_put(c_ptr + y_stride, linesize, block); block += 64; + } } - block += 64; - mb++; } } + return 0; } -#ifdef DV_CODEC_TINY_TARGET +#if CONFIG_SMALL /* Converts run and level (where level != 0) pair into vlc, returning bit size */ -static always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) +static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) { int size; if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) { @@ -555,14 +717,14 @@ static always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc) if (run) { *vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc : (0x1f80 | (run - 1))) << size; - size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; + size += (run < 16) ? dv_vlc_map[run-1][0].size : 13; } } return size; } -static always_inline int dv_rl2vlc_size(int run, int level) +static av_always_inline int dv_rl2vlc_size(int run, int level) { int size; @@ -578,52 +740,52 @@ static always_inline int dv_rl2vlc_size(int run, int level) return size; } #else -static always_inline int dv_rl2vlc(int run, int l, int sign, uint32_t* vlc) +static av_always_inline int dv_rl2vlc(int run, int l, int sign, uint32_t* vlc) { *vlc = dv_vlc_map[run][l].vlc | sign; return dv_vlc_map[run][l].size; } -static always_inline int dv_rl2vlc_size(int run, int l) +static av_always_inline int dv_rl2vlc_size(int run, int l) { return dv_vlc_map[run][l].size; } #endif typedef struct EncBlockInfo { - int area_q[4]; - int bit_size[4]; - int prev[5]; - int cur_ac; - int cno; - int dct_mode; - DCTELEM mb[64]; - uint8_t next[64]; - uint8_t sign[64]; - uint8_t partial_bit_count; + int area_q[4]; + int bit_size[4]; + int prev[5]; + int cur_ac; + int cno; + int dct_mode; + DCTELEM mb[64]; + uint8_t next[64]; + uint8_t sign[64]; + uint8_t partial_bit_count; uint32_t partial_bit_buffer; /* we can't use uint16_t here */ } EncBlockInfo; -static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext* pb_pool, - PutBitContext* pb_end) +static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, + PutBitContext* pb_pool, + PutBitContext* pb_end) { - int prev; - int bits_left; + int prev, bits_left; PutBitContext* pb = pb_pool; int size = bi->partial_bit_count; uint32_t vlc = bi->partial_bit_buffer; bi->partial_bit_count = bi->partial_bit_buffer = 0; - for(;;){ + for (;;){ /* Find suitable storage space */ for (; size > (bits_left = put_bits_left(pb)); pb++) { if (bits_left) { size -= bits_left; put_bits(pb, bits_left, vlc >> size); - vlc = vlc & ((1<= pb_end) { - bi->partial_bit_count = size; + bi->partial_bit_count = size; bi->partial_bit_buffer = vlc; return pb; } @@ -632,13 +794,13 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext /* Store VLC */ put_bits(pb, size, vlc); - if(bi->cur_ac>=64) + if (bi->cur_ac >= 64) break; /* Construct the next VLC */ - prev= bi->cur_ac; + prev = bi->cur_ac; bi->cur_ac = bi->next[prev]; - if(bi->cur_ac < 64){ + if (bi->cur_ac < 64){ size = dv_rl2vlc(bi->cur_ac - prev - 1, bi->mb[bi->cur_ac], bi->sign[bi->cur_ac], &vlc); } else { size = 4; vlc = 6; /* End Of Block stamp */ @@ -647,82 +809,111 @@ static always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi, PutBitContext return pb; } -static always_inline void dv_set_class_number(DCTELEM* blk, EncBlockInfo* bi, - const uint8_t* zigzag_scan, int bias) +static av_always_inline int dv_guess_dct_mode(DVVideoContext *s, uint8_t *data, int linesize) { + if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) { + int ps = s->ildct_cmp(NULL, data, NULL, linesize, 8) - 400; + if (ps > 0) { + int is = s->ildct_cmp(NULL, data , NULL, linesize<<1, 4) + + s->ildct_cmp(NULL, data + linesize, NULL, linesize<<1, 4); + return (ps > is); + } + } + + return 0; +} + +static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, int linesize, DVVideoContext *s, int bias) { + const int *weight; + const uint8_t* zigzag_scan; + DECLARE_ALIGNED_16(DCTELEM, blk[64]); int i, area; + /* We offer two different methods for class number assignment: the + method suggested in SMPTE 314M Table 22, and an improved + method. The SMPTE method is very conservative; it assigns class + 3 (i.e. severe quantization) to any block where the largest AC + component is greater than 36. FFmpeg's DV encoder tracks AC bit + consumption precisely, so there is no need to bias most blocks + towards strongly lossy compression. Instead, we assign class 2 + to most blocks, and use class 3 only when strictly necessary + (for blocks whose largest AC component exceeds 255). */ + +#if 0 /* SMPTE spec method */ static const int classes[] = {12, 24, 36, 0xffff}; - int max=12; - int prev=0; - +#else /* improved FFmpeg method */ + static const int classes[] = {-1, -1, 255, 0xffff}; +#endif + int max = classes[0]; + int prev = 0; + + assert((((int)blk) & 15) == 0); + + bi->area_q[0] = bi->area_q[1] = bi->area_q[2] = bi->area_q[3] = 0; + bi->partial_bit_count = 0; + bi->partial_bit_buffer = 0; + bi->cur_ac = 0; + if (data) { + bi->dct_mode = dv_guess_dct_mode(s, data, linesize); + s->get_pixels(blk, data, linesize); + s->fdct[bi->dct_mode](blk); + } else { + /* We rely on the fact that encoding all zeros leads to an immediate EOB, + which is precisely what the spec calls for in the "dummy" blocks. */ + memset(blk, 0, sizeof(blk)); + bi->dct_mode = 0; + } bi->mb[0] = blk[0]; + zigzag_scan = bi->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct; + weight = bi->dct_mode ? dv_weight_248 : dv_weight_88; + for (area = 0; area < 4; area++) { - bi->prev[area] = prev; + bi->prev[area] = prev; bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) - for (i=mb_area_start[area]; i 30U) { - bi->sign[i] = (level>>31)&1; - bi->mb[i] = level= ABS(level)>>4; - if(level>max) max= level; + if (level + 15 > 30U) { + bi->sign[i] = (level >> 31) & 1; + /* weigh it and and shift down into range, adding for rounding */ + /* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT + AND the 2x doubling of the weights */ + level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4); + bi->mb[i] = level; + if (level > max) + max = level; bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, level); bi->next[prev]= i; - prev= i; + prev = i; } } } bi->next[prev]= i; - for(bi->cno = 0; max > classes[bi->cno]; bi->cno++); + for (bi->cno = 0; max > classes[bi->cno]; bi->cno++); bi->cno += bias; if (bi->cno >= 3) { bi->cno = 3; - prev=0; - i= bi->next[prev]; + prev = 0; + i = bi->next[prev]; for (area = 0; area < 4; area++) { - bi->prev[area] = prev; + bi->prev[area] = prev; bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :) - for (; inext[i]) { - bi->mb[i] >>=1; + for (; i < mb_area_start[area+1]; i = bi->next[i]) { + bi->mb[i] >>= 1; if (bi->mb[i]) { bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]); bi->next[prev]= i; - prev= i; + prev = i; } } } bi->next[prev]= i; } -} - -//FIXME replace this by dsputil -#define SC(x, y) ((s[x] - s[y]) ^ ((s[x] - s[y]) >> 7)) -static always_inline int dv_guess_dct_mode(DCTELEM *blk) { - DCTELEM *s; - int score88 = 0; - int score248 = 0; - int i; - - /* Compute 8-8 score (small values give a better chance for 8-8 DCT) */ - s = blk; - for(i=0; i<7; i++) { - score88 += SC(0, 8) + SC(1, 9) + SC(2, 10) + SC(3, 11) + - SC(4, 12) + SC(5,13) + SC(6, 14) + SC(7, 15); - s += 8; - } - /* Compute 2-4-8 score (small values give a better chance for 2-4-8 DCT) */ - s = blk; - for(i=0; i<6; i++) { - score248 += SC(0, 16) + SC(1,17) + SC(2, 18) + SC(3, 19) + - SC(4, 20) + SC(5,21) + SC(6, 22) + SC(7, 23); - s += 8; - } - return (score88 - score248 > -10); + return bi->bit_size[0] + bi->bit_size[1] + bi->bit_size[2] + bi->bit_size[3]; } static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) @@ -731,32 +922,37 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) int i, j, k, a, prev, a2; EncBlockInfo* b; + size[0] = size[1] = size[2] = size[3] = size[4] = 1 << 24; do { b = blks; - for (i=0; i<5; i++) { + for (i = 0; i < 5; i++) { if (!qnos[i]) continue; qnos[i]--; size[i] = 0; - for (j=0; j<6; j++, b++) { - for (a=0; a<4; a++) { + for (j = 0; j < 6; j++, b++) { + for (a = 0; a < 4; a++) { if (b->area_q[a] != dv_quant_shifts[qnos[i] + dv_quant_offset[b->cno]][a]) { b->bit_size[a] = 1; // 4 areas 4 bits for EOB :) b->area_q[a]++; - prev= b->prev[a]; - for (k= b->next[prev] ; knext[k]) { + prev = b->prev[a]; + assert(b->next[prev] >= mb_area_start[a+1] || b->mb[prev]); + for (k = b->next[prev] ; k < mb_area_start[a+1]; k = b->next[k]) { b->mb[k] >>= 1; if (b->mb[k]) { b->bit_size[a] += dv_rl2vlc_size(k - prev - 1, b->mb[k]); - prev= k; + prev = k; } else { - if(b->next[k] >= mb_area_start[a+1] && b->next[k]<64){ - for(a2=a+1; b->next[k] >= mb_area_start[a2+1]; a2++); - assert(a2<4); + if (b->next[k] >= mb_area_start[a+1] && b->next[k]<64){ + for (a2 = a + 1; b->next[k] >= mb_area_start[a2+1]; a2++) + b->prev[a2] = prev; + assert(a2 < 4); assert(b->mb[b->next[k]]); b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]]) -dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]); + assert(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2+1] != k)); + b->prev[a2] = prev; } b->next[prev] = b->next[k]; } @@ -766,216 +962,319 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos) size[i] += b->bit_size[a]; } } + if (vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4]) + return; } - if(vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4]) - return; } while (qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4]); - for(a=2; a==2 || vs_total_ac_bits < size[0]; a+=a){ + for (a = 2; a == 2 || vs_total_ac_bits < size[0]; a += a){ b = blks; - size[0] = 0; - for (j=0; j<6*5; j++, b++) { - prev= b->prev[0]; - for (k= b->next[prev]; k<64; k= b->next[k]) { - if(b->mb[k] < a && b->mb[k] > -a){ + size[0] = 5 * 6 * 4; //EOB + for (j = 0; j < 6 *5; j++, b++) { + prev = b->prev[0]; + for (k = b->next[prev]; k < 64; k = b->next[k]) { + if (b->mb[k] < a && b->mb[k] > -a){ b->next[prev] = b->next[k]; }else{ size[0] += dv_rl2vlc_size(k - prev - 1, b->mb[k]); - prev= k; + prev = k; } } } } } -/* - * This is a very rough initial implementaion. The performance is - * horrible and the weighting is missing. But it's missing from the - * decoding step also -- so at least we're on the same page with decoder ;-) - */ -static inline void dv_encode_video_segment(DVVideoContext *s, - uint8_t *dif, - const uint16_t *mb_pos_ptr) +static int dv_encode_video_segment(AVCodecContext *avctx, void *arg) { - int mb_index, i, j, v; - int mb_x, mb_y, c_offset, linesize; + DVVideoContext *s = avctx->priv_data; + DVwork_chunk *work_chunk = arg; + int mb_index, i, j; + int mb_x, mb_y, c_offset, linesize, y_stride; uint8_t* y_ptr; - uint8_t* data; - uint8_t* ptr; - int do_edge_wrap; - DECLARE_ALIGNED_8(DCTELEM, block[64]); - EncBlockInfo enc_blks[5*6]; - PutBitContext pbs[5*6]; + uint8_t* dif; + uint8_t scratch[64]; + EncBlockInfo enc_blks[5*DV_MAX_BPM]; + PutBitContext pbs[5*DV_MAX_BPM]; PutBitContext* pb; EncBlockInfo* enc_blk; int vs_bit_size = 0; - int qnos[5]; - - assert((((int)block) & 7) == 0); + int qnos[5] = {15, 15, 15, 15, 15}; /* No quantization */ + int* qnosp = &qnos[0]; + dif = &s->buf[work_chunk->buf_offset*80]; enc_blk = &enc_blks[0]; - pb = &pbs[0]; - for(mb_index = 0; mb_index < 5; mb_index++) { - v = *mb_pos_ptr++; - mb_x = v & 0xff; - mb_y = v >> 8; - y_ptr = s->picture.data[0] + (mb_y * s->picture.linesize[0] * 8) + (mb_x * 8); - c_offset = (s->sys->pix_fmt == PIX_FMT_YUV411P) ? - ((mb_y * s->picture.linesize[1] * 8) + ((mb_x >> 2) * 8)) : - (((mb_y >> 1) * s->picture.linesize[1] * 8) + ((mb_x >> 1) * 8)); - do_edge_wrap = 0; - qnos[mb_index] = 15; /* No quantization */ - ptr = dif + mb_index*80 + 4; - for(j = 0;j < 6; j++) { - if (j < 4) { /* Four Y blocks */ - /* NOTE: at end of line, the macroblock is handled as 420 */ - if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) { - data = y_ptr + (j * 8); - } else { - data = y_ptr + ((j & 1) * 8) + ((j >> 1) * 8 * s->picture.linesize[0]); - } - linesize = s->picture.linesize[0]; - } else { /* Cr and Cb blocks */ - /* don't ask Fabrice why they inverted Cb and Cr ! */ - data = s->picture.data[6 - j] + c_offset; - linesize = s->picture.linesize[6 - j]; - if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) - do_edge_wrap = 1; - } - - /* Everything is set up -- now just copy data -> DCT block */ - if (do_edge_wrap) { /* Edge wrap copy: 4x16 -> 8x8 */ + for (mb_index = 0; mb_index < 5; mb_index++) { + dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y); + + /* initializing luminance blocks */ + if ((s->sys->pix_fmt == PIX_FMT_YUV420P) || + (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) || + (s->sys->height >= 720 && mb_y != 134)) { + y_stride = s->picture.linesize[0] << 3; + } else { + y_stride = 16; + } + y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << 3); + linesize = s->picture.linesize[0]; + + if (s->sys->video_stype == 4) { /* SD 422 */ + vs_bit_size += + dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) + + dv_init_enc_block(enc_blk+1, NULL , linesize, s, 0) + + dv_init_enc_block(enc_blk+2, y_ptr + 8 , linesize, s, 0) + + dv_init_enc_block(enc_blk+3, NULL , linesize, s, 0); + } else { + vs_bit_size += + dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) + + dv_init_enc_block(enc_blk+1, y_ptr + 8 , linesize, s, 0) + + dv_init_enc_block(enc_blk+2, y_ptr + y_stride, linesize, s, 0) + + dv_init_enc_block(enc_blk+3, y_ptr + 8 + y_stride, linesize, s, 0); + } + enc_blk += 4; + + /* initializing chrominance blocks */ + c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] + + (mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << 3); + for (j = 2; j; j--) { + uint8_t *c_ptr = s->picture.data[j] + c_offset; + linesize = s->picture.linesize[j]; + y_stride = (mb_y == 134) ? 8 : (s->picture.linesize[j] << 3); + if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8)) { uint8_t* d; - DCTELEM *b = block; - for (i=0;i<8;i++) { - d = data + 8 * linesize; - b[0] = data[0]; b[1] = data[1]; b[2] = data[2]; b[3] = data[3]; - b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3]; - data += linesize; - b += 8; + uint8_t* b = scratch; + for (i = 0; i < 8; i++) { + d = c_ptr + (linesize << 3); + b[0] = c_ptr[0]; b[1] = c_ptr[1]; b[2] = c_ptr[2]; b[3] = c_ptr[3]; + b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3]; + c_ptr += linesize; + b += 8; } - } else { /* Simple copy: 8x8 -> 8x8 */ - s->get_pixels(block, data, linesize); + c_ptr = scratch; + linesize = 8; } - if(s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) - enc_blk->dct_mode = dv_guess_dct_mode(block); - else - enc_blk->dct_mode = 0; - enc_blk->area_q[0] = enc_blk->area_q[1] = enc_blk->area_q[2] = enc_blk->area_q[3] = 0; - enc_blk->partial_bit_count = 0; - enc_blk->partial_bit_buffer = 0; - enc_blk->cur_ac = 0; - - s->fdct[enc_blk->dct_mode](block); - - dv_set_class_number(block, enc_blk, - enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct, j/4); - - init_put_bits(pb, ptr, block_sizes[j]/8); - put_bits(pb, 9, (uint16_t)(((enc_blk->mb[0] >> 3) - 1024 + 2) >> 2)); - put_bits(pb, 1, enc_blk->dct_mode); - put_bits(pb, 2, enc_blk->cno); - - vs_bit_size += enc_blk->bit_size[0] + enc_blk->bit_size[1] + - enc_blk->bit_size[2] + enc_blk->bit_size[3]; - ++enc_blk; - ++pb; - ptr += block_sizes[j]/8; + vs_bit_size += dv_init_enc_block( enc_blk++, c_ptr , linesize, s, 1); + if (s->sys->bpm == 8) { + vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr + y_stride, linesize, s, 1); + } } } if (vs_total_ac_bits < vs_bit_size) - dv_guess_qnos(&enc_blks[0], &qnos[0]); + dv_guess_qnos(&enc_blks[0], qnosp); - for (i=0; i<5; i++) { - dif[i*80 + 3] = qnos[i]; - } + /* DIF encoding process */ + for (j=0; j<5*s->sys->bpm;) { + int start_mb = j; + + dif[3] = *qnosp++; + dif += 4; + + /* First pass over individual cells only */ + for (i=0; isys->bpm; i++, j++) { + int sz = s->sys->block_sizes[i]>>3; + + init_put_bits(&pbs[j], dif, sz); + put_bits(&pbs[j], 9, (uint16_t)(((enc_blks[j].mb[0] >> 3) - 1024 + 2) >> 2)); + put_bits(&pbs[j], 1, enc_blks[j].dct_mode); + put_bits(&pbs[j], 2, enc_blks[j].cno); - /* First pass over individual cells only */ - for (j=0; j<5*6; j++) - dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]); + dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]); + dif += sz; + } - /* Second pass over each MB space */ - for (j=0; j<5*6; j+=6) { - pb= &pbs[j]; - for (i=0; i<6; i++) { - if (enc_blks[i+j].partial_bit_count) - pb=dv_encode_ac(&enc_blks[i+j], pb, &pbs[j+6]); + /* Second pass over each MB space */ + pb = &pbs[start_mb]; + for (i=0; isys->bpm; i++) { + if (enc_blks[start_mb+i].partial_bit_count) + pb = dv_encode_ac(&enc_blks[start_mb+i], pb, &pbs[start_mb+s->sys->bpm]); } } - /* Third and final pass over the whole vides segment space */ - pb= &pbs[0]; - for (j=0; j<5*6; j++) { + /* Third and final pass over the whole video segment space */ + pb = &pbs[0]; + for (j=0; j<5*s->sys->bpm; j++) { if (enc_blks[j].partial_bit_count) - pb=dv_encode_ac(&enc_blks[j], pb, &pbs[6*5]); + pb = dv_encode_ac(&enc_blks[j], pb, &pbs[s->sys->bpm*5]); if (enc_blks[j].partial_bit_count) av_log(NULL, AV_LOG_ERROR, "ac bitstream overflow\n"); } - for (j=0; j<5*6; j++) + for (j=0; j<5*s->sys->bpm; j++) flush_put_bits(&pbs[j]); -} - -static int dv_decode_mt(AVCodecContext *avctx, void* sl) -{ - DVVideoContext *s = avctx->priv_data; - int slice = (size_t)sl; - dv_decode_video_segment(s, &s->buf[((slice/27)*6+(slice/3)+slice*5+7)*80], - &s->sys->video_place[slice*5]); - return 0; -} -static int dv_encode_mt(AVCodecContext *avctx, void* sl) -{ - DVVideoContext *s = avctx->priv_data; - int slice = (size_t)sl; - dv_encode_video_segment(s, &s->buf[((slice/27)*6+(slice/3)+slice*5+7)*80], - &s->sys->video_place[slice*5]); return 0; } +#if CONFIG_DVVIDEO_DECODER /* NOTE: exactly one frame must be given (120000 bytes for NTSC, - 144000 bytes for PAL) */ + 144000 bytes for PAL - or twice those for 50Mbps) */ static int dvvideo_decode_frame(AVCodecContext *avctx, void *data, int *data_size, - uint8_t *buf, int buf_size) + AVPacket *avpkt) { + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; DVVideoContext *s = avctx->priv_data; s->sys = dv_frame_profile(buf); - if (!s->sys || buf_size < s->sys->frame_size) + if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys)) return -1; /* NOTE: we only accept several full frames */ - if(s->picture.data[0]) + if (s->picture.data[0]) avctx->release_buffer(avctx, &s->picture); s->picture.reference = 0; s->picture.key_frame = 1; s->picture.pict_type = FF_I_TYPE; - avctx->pix_fmt = s->sys->pix_fmt; + avctx->pix_fmt = s->sys->pix_fmt; + avctx->time_base = s->sys->time_base; avcodec_set_dimensions(avctx, s->sys->width, s->sys->height); - if(avctx->get_buffer(avctx, &s->picture) < 0) { + if (avctx->get_buffer(avctx, &s->picture) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } s->picture.interlaced_frame = 1; - s->picture.top_field_first = 0; + s->picture.top_field_first = 0; s->buf = buf; - avctx->execute(avctx, dv_decode_mt, (void**)&dv_anchor[0], NULL, - s->sys->difseg_size * 27); + avctx->execute(avctx, dv_decode_video_segment, s->sys->work_chunks, NULL, + dv_work_pool_size(s->sys), sizeof(DVwork_chunk)); emms_c(); /* return image */ *data_size = sizeof(AVFrame); - *(AVFrame*)data= s->picture; + *(AVFrame*)data = s->picture; return s->sys->frame_size; } +#endif /* CONFIG_DVVIDEO_DECODER */ + + +static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c, + uint8_t* buf) +{ + /* + * Here's what SMPTE314M says about these two: + * (page 6) APTn, AP1n, AP2n, AP3n: These data shall be identical + * as track application IDs (APTn = 001, AP1n = + * 001, AP2n = 001, AP3n = 001), if the source signal + * comes from a digital VCR. If the signal source is + * unknown, all bits for these data shall be set to 1. + * (page 12) STYPE: STYPE defines a signal type of video signal + * 00000b = 4:1:1 compression + * 00100b = 4:2:2 compression + * XXXXXX = Reserved + * Now, I've got two problems with these statements: + * 1. it looks like APT == 111b should be a safe bet, but it isn't. + * It seems that for PAL as defined in IEC 61834 we have to set + * APT to 000 and for SMPTE314M to 001. + * 2. It is not at all clear what STYPE is used for 4:2:0 PAL + * compression scheme (if any). + */ + int apt = (c->sys->pix_fmt == PIX_FMT_YUV420P ? 0 : 1); + + uint8_t aspect = 0; + if ((int)(av_q2d(c->avctx->sample_aspect_ratio) * c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */ + aspect = 0x02; + + buf[0] = (uint8_t)pack_id; + switch (pack_id) { + case dv_header525: /* I can't imagine why these two weren't defined as real */ + case dv_header625: /* packs in SMPTE314M -- they definitely look like ones */ + buf[1] = 0xf8 | /* reserved -- always 1 */ + (apt & 0x07); /* APT: Track application ID */ + buf[2] = (0 << 7) | /* TF1: audio data is 0 - valid; 1 - invalid */ + (0x0f << 3) | /* reserved -- always 1 */ + (apt & 0x07); /* AP1: Audio application ID */ + buf[3] = (0 << 7) | /* TF2: video data is 0 - valid; 1 - invalid */ + (0x0f << 3) | /* reserved -- always 1 */ + (apt & 0x07); /* AP2: Video application ID */ + buf[4] = (0 << 7) | /* TF3: subcode(SSYB) is 0 - valid; 1 - invalid */ + (0x0f << 3) | /* reserved -- always 1 */ + (apt & 0x07); /* AP3: Subcode application ID */ + break; + case dv_video_source: + buf[1] = 0xff; /* reserved -- always 1 */ + buf[2] = (1 << 7) | /* B/W: 0 - b/w, 1 - color */ + (1 << 6) | /* following CLF is valid - 0, invalid - 1 */ + (3 << 4) | /* CLF: color frames ID (see ITU-R BT.470-4) */ + 0xf; /* reserved -- always 1 */ + buf[3] = (3 << 6) | /* reserved -- always 1 */ + (c->sys->dsf << 5) | /* system: 60fields/50fields */ + c->sys->video_stype; /* signal type video compression */ + buf[4] = 0xff; /* VISC: 0xff -- no information */ + break; + case dv_video_control: + buf[1] = (0 << 6) | /* Copy generation management (CGMS) 0 -- free */ + 0x3f; /* reserved -- always 1 */ + buf[2] = 0xc8 | /* reserved -- always b11001xxx */ + aspect; + buf[3] = (1 << 7) | /* frame/field flag 1 -- frame, 0 -- field */ + (1 << 6) | /* first/second field flag 0 -- field 2, 1 -- field 1 */ + (1 << 5) | /* frame change flag 0 -- same picture as before, 1 -- different */ + (1 << 4) | /* 1 - interlaced, 0 - noninterlaced */ + 0xc; /* reserved -- always b1100 */ + buf[4] = 0xff; /* reserved -- always 1 */ + break; + default: + buf[1] = buf[2] = buf[3] = buf[4] = 0xff; + } + return 5; +} + +#if CONFIG_DVVIDEO_ENCODER +static void dv_format_frame(DVVideoContext* c, uint8_t* buf) +{ + int chan, i, j, k; + + for (chan = 0; chan < c->sys->n_difchan; chan++) { + for (i = 0; i < c->sys->difseg_size; i++) { + memset(buf, 0xff, 80 * 6); /* first 6 DIF blocks are for control data */ + + /* DV header: 1DIF */ + buf += dv_write_dif_id(dv_sect_header, chan, i, 0, buf); + buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525), c, buf); + buf += 72; /* unused bytes */ + + /* DV subcode: 2DIFs */ + for (j = 0; j < 2; j++) { + buf += dv_write_dif_id(dv_sect_subcode, chan, i, j, buf); + for (k = 0; k < 6; k++) + buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size/2), buf) + 5; + buf += 29; /* unused bytes */ + } + + /* DV VAUX: 3DIFS */ + for (j = 0; j < 3; j++) { + buf += dv_write_dif_id(dv_sect_vaux, chan, i, j, buf); + buf += dv_write_pack(dv_video_source, c, buf); + buf += dv_write_pack(dv_video_control, c, buf); + buf += 7*5; + buf += dv_write_pack(dv_video_source, c, buf); + buf += dv_write_pack(dv_video_control, c, buf); + buf += 4*5 + 2; /* unused bytes */ + } + + /* DV Audio/Video: 135 Video DIFs + 9 Audio DIFs */ + for (j = 0; j < 135; j++) { + if (j%15 == 0) { + memset(buf, 0xff, 80); + buf += dv_write_dif_id(dv_sect_audio, chan, i, j/15, buf); + buf += 77; /* audio control & shuffled PCM audio */ + } + buf += dv_write_dif_id(dv_sect_video, chan, i, j, buf); + buf += 77; /* 1 video macroblock: 1 bytes control + 4 * 14 bytes Y 8x8 data + 10 bytes Cr 8x8 data + 10 bytes Cb 8x8 data */ + } + } + } +} + static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size, void *data) @@ -983,32 +1282,38 @@ static int dvvideo_encode_frame(AVCodecContext *c, uint8_t *buf, int buf_size, DVVideoContext *s = c->priv_data; s->sys = dv_codec_profile(c); - if (!s->sys) - return -1; - if(buf_size < s->sys->frame_size) + if (!s->sys || buf_size < s->sys->frame_size || dv_init_dynamic_tables(s->sys)) return -1; - c->pix_fmt = s->sys->pix_fmt; - s->picture = *((AVFrame *)data); + c->pix_fmt = s->sys->pix_fmt; + s->picture = *((AVFrame *)data); s->picture.key_frame = 1; s->picture.pict_type = FF_I_TYPE; s->buf = buf; - c->execute(c, dv_encode_mt, (void**)&dv_anchor[0], NULL, - s->sys->difseg_size * 27); + c->execute(c, dv_encode_video_segment, s->sys->work_chunks, NULL, + dv_work_pool_size(s->sys), sizeof(DVwork_chunk)); emms_c(); + + dv_format_frame(s, buf); + return s->sys->frame_size; } +#endif static int dvvideo_close(AVCodecContext *c) { + DVVideoContext *s = c->priv_data; + + if (s->picture.data[0]) + c->release_buffer(c, &s->picture); return 0; } -#ifdef CONFIG_DVVIDEO_ENCODER +#if CONFIG_DVVIDEO_ENCODER AVCodec dvvideo_encoder = { "dvvideo", CODEC_TYPE_VIDEO, @@ -1016,13 +1321,12 @@ AVCodec dvvideo_encoder = { sizeof(DVVideoContext), dvvideo_init, dvvideo_encode_frame, - dvvideo_close, - NULL, - CODEC_CAP_DR1, - NULL + .pix_fmts = (enum PixelFormat[]) {PIX_FMT_YUV411P, PIX_FMT_YUV422P, PIX_FMT_YUV420P, PIX_FMT_NONE}, + .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"), }; #endif // CONFIG_DVVIDEO_ENCODER +#if CONFIG_DVVIDEO_DECODER AVCodec dvvideo_decoder = { "dvvideo", CODEC_TYPE_VIDEO, @@ -1033,5 +1337,7 @@ AVCodec dvvideo_decoder = { dvvideo_close, dvvideo_decode_frame, CODEC_CAP_DR1, - NULL + NULL, + .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"), }; +#endif