#include "rangecoder.h"
#include "golomb.h"
#include "mathops.h"
+#include "libavutil/avassert.h"
#define MAX_PLANES 4
#define CONTEXT_SIZE 32
+#define MAX_QUANT_TABLES 8
+#define MAX_CONTEXT_INPUTS 5
+
extern const uint8_t ff_log2_run[32];
static const int8_t quant3[256]={
} VlcState;
typedef struct PlaneContext{
+ int16_t quant_table[MAX_CONTEXT_INPUTS][256];
+ int quant_table_index;
int context_count;
uint8_t (*state)[CONTEXT_SIZE];
VlcState *vlc_state;
uint8_t interlace_bit_state[2];
} PlaneContext;
+#define MAX_SLICES 256
+
typedef struct FFV1Context{
AVCodecContext *avctx;
RangeCoder c;
GetBitContext gb;
PutBitContext pb;
+ uint64_t rc_stat[256][2];
int version;
int width, height;
int chroma_h_shift, chroma_v_shift;
int plane_count;
int ac; ///< 1=range coder <-> 0=golomb rice
PlaneContext plane[MAX_PLANES];
- int16_t quant_table[5][256];
+ int16_t quant_table[MAX_CONTEXT_INPUTS][256];
+ int16_t quant_tables[MAX_QUANT_TABLES][MAX_CONTEXT_INPUTS][256];
+ int context_count[MAX_QUANT_TABLES];
uint8_t state_transition[256];
int run_index;
int colorspace;
int_fast16_t *sample_buffer;
+ int quant_table_count;
+
DSPContext dsp;
+
+ struct FFV1Context *slice_context[MAX_SLICES];
+ int slice_count;
+ int num_v_slices;
+ int num_h_slices;
+ int slice_width;
+ int slice_height;
+ int slice_x;
+ int slice_y;
}FFV1Context;
static av_always_inline int fold(int diff, int bits){
return mid_pred(L, L + T - LT, T);
}
-static inline int get_context(FFV1Context *f, int_fast16_t *src, int_fast16_t *last, int_fast16_t *last2){
+static inline int get_context(PlaneContext *p, int_fast16_t *src, int_fast16_t *last, int_fast16_t *last2){
const int LT= last[-1];
const int T= last[ 0];
const int RT= last[ 1];
const int L = src[-1];
- if(f->quant_table[3][127]){
+ if(p->quant_table[3][127]){
const int TT= last2[0];
const int LL= src[-2];
- return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF]
- +f->quant_table[3][(LL-L) & 0xFF] + f->quant_table[4][(TT-T) & 0xFF];
+ return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF]
+ +p->quant_table[3][(LL-L) & 0xFF] + p->quant_table[4][(TT-T) & 0xFF];
}else
- return f->quant_table[0][(L-LT) & 0xFF] + f->quant_table[1][(LT-T) & 0xFF] + f->quant_table[2][(T-RT) & 0xFF];
+ return p->quant_table[0][(L-LT) & 0xFF] + p->quant_table[1][(LT-T) & 0xFF] + p->quant_table[2][(T-RT) & 0xFF];
}
-static inline void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed){
+static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed, uint64_t rc_stat[256][2]){
int i;
+#define put_rac(C,S,B) \
+do{\
+ if(rc_stat){\
+ rc_stat[*(S)][B]++;\
+ }\
+ put_rac(C,S,B);\
+}while(0)
+
if(v){
const int a= FFABS(v);
const int e= av_log2(a);
}else{
put_rac(c, state+0, 1);
}
+#undef put_rac
}
static void av_noinline put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
- put_symbol_inline(c, state, v, is_signed);
+ put_symbol_inline(c, state, v, is_signed, NULL);
}
static inline av_flatten int get_symbol_inline(RangeCoder *c, uint8_t *state, int is_signed){
}
#if CONFIG_FFV1_ENCODER
-static inline int encode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
+static av_always_inline int encode_line(FFV1Context *s, int w, int_fast16_t *sample[2], int plane_index, int bits){
PlaneContext * const p= &s->plane[plane_index];
RangeCoder * const c= &s->c;
int x;
for(x=0; x<w; x++){
int diff, context;
- context= get_context(s, sample[0]+x, sample[1]+x, sample[2]+x);
+ context= get_context(p, sample[0]+x, sample[1]+x, sample[2]+x);
diff= sample[0][x] - predict(sample[0]+x, sample[1]+x);
if(context < 0){
diff= fold(diff, bits);
if(s->ac){
- put_symbol_inline(c, p->state[context], diff, 1);
+ if(s->flags & CODEC_FLAG_PASS1){
+ put_symbol_inline(c, p->state[context], diff, 1, s->rc_stat);
+ }else{
+ put_symbol_inline(c, p->state[context], diff, 1, NULL);
+ }
}else{
if(context == 0) run_mode=1;
put_symbol(c, state, i-last-1, 0);
}
-static void write_quant_tables(RangeCoder *c, int16_t quant_table[5][256]){
+static void write_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){
int i;
for(i=0; i<5; i++)
write_quant_table(c, quant_table[i]);
static void write_header(FFV1Context *f){
uint8_t state[CONTEXT_SIZE];
- int i;
- RangeCoder * const c= &f->c;
+ int i, j;
+ RangeCoder * const c= &f->slice_context[0]->c;
memset(state, 128, sizeof(state));
if(f->version < 2){
- put_symbol(c, state, f->version, 0);
- put_symbol(c, state, f->ac, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- f->state_transition[i]=ver2_state[i];
- put_symbol(c, state, ver2_state[i] - c->one_state[i], 1);
+ put_symbol(c, state, f->version, 0);
+ put_symbol(c, state, f->ac, 0);
+ if(f->ac>1){
+ for(i=1; i<256; i++){
+ put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
+ }
+ }
+ put_symbol(c, state, f->colorspace, 0); //YUV cs type
+ if(f->version>0)
+ put_symbol(c, state, f->avctx->bits_per_raw_sample, 0);
+ put_rac(c, state, 1); //chroma planes
+ put_symbol(c, state, f->chroma_h_shift, 0);
+ put_symbol(c, state, f->chroma_v_shift, 0);
+ put_rac(c, state, 0); //no transparency plane
+
+ write_quant_tables(c, f->quant_table);
+ }else{
+ put_symbol(c, state, f->slice_count, 0);
+ for(i=0; i<f->slice_count; i++){
+ FFV1Context *fs= f->slice_context[i];
+ put_symbol(c, state, (fs->slice_x +1)*f->num_h_slices / f->width , 0);
+ put_symbol(c, state, (fs->slice_y +1)*f->num_v_slices / f->height , 0);
+ put_symbol(c, state, (fs->slice_width +1)*f->num_h_slices / f->width -1, 0);
+ put_symbol(c, state, (fs->slice_height+1)*f->num_v_slices / f->height-1, 0);
+ for(j=0; j<f->plane_count; j++){
+ put_symbol(c, state, f->plane[j].quant_table_index, 0);
+ av_assert0(f->plane[j].quant_table_index == f->avctx->context_model);
+ }
}
- }
- put_symbol(c, state, f->colorspace, 0); //YUV cs type
- if(f->version>0)
- put_symbol(c, state, f->avctx->bits_per_raw_sample, 0);
- put_rac(c, state, 1); //chroma planes
- put_symbol(c, state, f->chroma_h_shift, 0);
- put_symbol(c, state, f->chroma_v_shift, 0);
- put_rac(c, state, 0); //no transparency plane
-
- write_quant_tables(c, f->quant_table);
}
}
#endif /* CONFIG_FFV1_ENCODER */
s->height= avctx->height;
assert(s->width && s->height);
+ //defaults
+ s->num_h_slices=1;
+ s->num_v_slices=1;
+
+
+ return 0;
+}
+
+static int init_slice_state(FFV1Context *f){
+ int i, j;
+
+ for(i=0; i<f->slice_count; i++){
+ FFV1Context *fs= f->slice_context[i];
+ for(j=0; j<f->plane_count; j++){
+ PlaneContext * const p= &fs->plane[j];
+
+ if(fs->ac){
+ if(!p-> state) p-> state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
+ if(!p-> state)
+ return AVERROR(ENOMEM);
+ }else{
+ if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
+ if(!p->vlc_state)
+ return AVERROR(ENOMEM);
+ }
+ }
- s->sample_buffer = av_malloc(6 * (s->width+6) * sizeof(*s->sample_buffer));
- if (!s->sample_buffer)
- return AVERROR(ENOMEM);
+ if (fs->ac>1){
+ //FIXME only redo if state_transition changed
+ for(j=1; j<256; j++){
+ fs->c.one_state [ j]= fs->state_transition[j];
+ fs->c.zero_state[256-j]= 256-fs->c.one_state [j];
+ }
+ }
+ }
+
+ return 0;
+}
+static av_cold int init_slice_contexts(FFV1Context *f){
+ int i;
+
+ f->slice_count= f->num_h_slices * f->num_v_slices;
+
+ for(i=0; i<f->slice_count; i++){
+ FFV1Context *fs= av_mallocz(sizeof(*fs));
+ int sx= i % f->num_h_slices;
+ int sy= i / f->num_h_slices;
+ int sxs= f->avctx->width * sx / f->num_h_slices;
+ int sxe= f->avctx->width *(sx+1) / f->num_h_slices;
+ int sys= f->avctx->height* sy / f->num_v_slices;
+ int sye= f->avctx->height*(sy+1) / f->num_v_slices;
+ f->slice_context[i]= fs;
+ memcpy(fs, f, sizeof(*fs));
+
+ fs->slice_width = sxe - sxs;
+ fs->slice_height= sye - sys;
+ fs->slice_x = sxs;
+ fs->slice_y = sys;
+
+ fs->sample_buffer = av_malloc(6 * (fs->width+6) * sizeof(*fs->sample_buffer));
+ if (!fs->sample_buffer)
+ return AVERROR(ENOMEM);
+ }
return 0;
}
put_symbol(c, state, f->ac, 0);
if(f->ac>1){
for(i=1; i<256; i++){
- f->state_transition[i]=ver2_state[i];
- put_symbol(c, state, ver2_state[i] - c->one_state[i], 1);
+ put_symbol(c, state, f->state_transition[i] - c->one_state[i], 1);
}
}
put_symbol(c, state, f->colorspace, 0); //YUV cs type
put_symbol(c, state, f->chroma_h_shift, 0);
put_symbol(c, state, f->chroma_v_shift, 0);
put_rac(c, state, 0); //no transparency plane
- write_quant_tables(c, f->quant_table);
+ put_symbol(c, state, f->num_h_slices-1, 0);
+ put_symbol(c, state, f->num_v_slices-1, 0);
+
+ put_symbol(c, state, f->quant_table_count, 0);
+ for(i=0; i<f->quant_table_count; i++)
+ write_quant_tables(c, f->quant_tables[i]);
f->avctx->extradata_size= ff_rac_terminate(c);
return 0;
}
+static int sort_stt(FFV1Context *s, uint8_t stt[256]){
+ int i,i2,changed,print=0;
+
+ do{
+ changed=0;
+ for(i=12; i<244; i++){
+ for(i2=i+1; i2<245 && i2<i+4; i2++){
+#define COST(old, new) \
+ s->rc_stat[old][0]*-log2((256-(new))/256.0)\
+ +s->rc_stat[old][1]*-log2( (new) /256.0)
+
+#define COST2(old, new) \
+ COST(old, new)\
+ +COST(256-(old), 256-(new))
+
+ double size0= COST2(i, i ) + COST2(i2, i2);
+ double sizeX= COST2(i, i2) + COST2(i2, i );
+ if(sizeX < size0 && i!=128 && i2!=128){
+ int j;
+ FFSWAP(int, stt[ i], stt[ i2]);
+ FFSWAP(int, s->rc_stat[i ][0],s->rc_stat[ i2][0]);
+ FFSWAP(int, s->rc_stat[i ][1],s->rc_stat[ i2][1]);
+ if(i != 256-i2){
+ FFSWAP(int, stt[256-i], stt[256-i2]);
+ FFSWAP(int, s->rc_stat[256-i][0],s->rc_stat[256-i2][0]);
+ FFSWAP(int, s->rc_stat[256-i][1],s->rc_stat[256-i2][1]);
+ }
+ for(j=1; j<256; j++){
+ if (stt[j] == i ) stt[j] = i2;
+ else if(stt[j] == i2) stt[j] = i ;
+ if(i != 256-i2){
+ if (stt[256-j] == 256-i ) stt[256-j] = 256-i2;
+ else if(stt[256-j] == 256-i2) stt[256-j] = 256-i ;
+ }
+ }
+ print=changed=1;
+ }
+ }
+ }
+ }while(changed);
+ return print;
+}
+
static av_cold int encode_init(AVCodecContext *avctx)
{
FFV1Context *s = avctx->priv_data;
- int i;
+ int i, j;
common_init(avctx);
s->version=0;
s->ac= avctx->coder_type ? 2:0;
+ if(s->ac>1)
+ for(i=1; i<256; i++)
+ s->state_transition[i]=ver2_state[i];
+
s->plane_count=2;
for(i=0; i<256; i++){
+ s->quant_table_count=2;
if(avctx->bits_per_raw_sample <=8){
- s->quant_table[0][i]= quant11[i];
- s->quant_table[1][i]= 11*quant11[i];
- if(avctx->context_model==0){
- s->quant_table[2][i]= 11*11*quant11[i];
- s->quant_table[3][i]=
- s->quant_table[4][i]=0;
- }else{
- s->quant_table[2][i]= 11*11*quant5 [i];
- s->quant_table[3][i]= 5*11*11*quant5 [i];
- s->quant_table[4][i]= 5*5*11*11*quant5 [i];
- }
+ s->quant_tables[0][0][i]= quant11[i];
+ s->quant_tables[0][1][i]= 11*quant11[i];
+ s->quant_tables[0][2][i]= 11*11*quant11[i];
+ s->quant_tables[1][0][i]= quant11[i];
+ s->quant_tables[1][1][i]= 11*quant11[i];
+ s->quant_tables[1][2][i]= 11*11*quant5 [i];
+ s->quant_tables[1][3][i]= 5*11*11*quant5 [i];
+ s->quant_tables[1][4][i]= 5*5*11*11*quant5 [i];
}else{
- s->quant_table[0][i]= quant9_10bit[i];
- s->quant_table[1][i]= 11*quant9_10bit[i];
- if(avctx->context_model==0){
- s->quant_table[2][i]= 11*11*quant9_10bit[i];
- s->quant_table[3][i]=
- s->quant_table[4][i]=0;
- }else{
- s->quant_table[2][i]= 11*11*quant5_10bit[i];
- s->quant_table[3][i]= 5*11*11*quant5_10bit[i];
- s->quant_table[4][i]= 5*5*11*11*quant5_10bit[i];
- }
+ s->quant_tables[0][0][i]= quant9_10bit[i];
+ s->quant_tables[0][1][i]= 11*quant9_10bit[i];
+ s->quant_tables[0][2][i]= 11*11*quant9_10bit[i];
+ s->quant_tables[1][0][i]= quant9_10bit[i];
+ s->quant_tables[1][1][i]= 11*quant9_10bit[i];
+ s->quant_tables[1][2][i]= 11*11*quant5_10bit[i];
+ s->quant_tables[1][3][i]= 5*11*11*quant5_10bit[i];
+ s->quant_tables[1][4][i]= 5*5*11*11*quant5_10bit[i];
}
}
+ s->context_count[0]= (11*11*11+1)/2;
+ s->context_count[1]= (11*11*5*5*5+1)/2;
+ memcpy(s->quant_table, s->quant_tables[avctx->context_model], sizeof(s->quant_table));
for(i=0; i<s->plane_count; i++){
PlaneContext * const p= &s->plane[i];
- if(avctx->context_model==0){
- p->context_count= (11*11*11+1)/2;
- }else{
- p->context_count= (11*11*5*5*5+1)/2;
- }
-
- if(s->ac){
- if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
- }else{
- if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
- }
+ memcpy(p->quant_table, s->quant_table, sizeof(p->quant_table));
+ p->quant_table_index= avctx->context_model;
+ p->context_count= s->context_count[p->quant_table_index];
}
avctx->coded_frame= &s->picture;
s->picture_number=0;
- if(s->version>1)
+ if(avctx->stats_in){
+ char *p= avctx->stats_in;
+
+ for(;;){
+ for(j=0; j<256; j++){
+ for(i=0; i<2; i++){
+ char *next;
+ s->rc_stat[j][i]= strtol(p, &next, 0);
+ if(next==p){
+ av_log(avctx, AV_LOG_ERROR, "2Pass file invalid at %d %d [%s]\n", j,i,p);
+ return -1;
+ }
+ p=next;
+ }
+ }
+ while(*p=='\n' || *p==' ') p++;
+ if(p[0]==0) break;
+ }
+ sort_stt(s, s->state_transition);
+ }
+
+ if(s->version>1){
+ s->num_h_slices=2;
+ s->num_v_slices=2;
write_extra_header(s);
+ }
+
+ if(init_slice_contexts(s) < 0)
+ return -1;
+ if(init_slice_state(s) < 0)
+ return -1;
+
+ avctx->stats_out= av_mallocz(1024*30);
return 0;
}
static void clear_state(FFV1Context *f){
- int i, j;
+ int i, si, j;
- for(i=0; i<f->plane_count; i++){
- PlaneContext *p= &f->plane[i];
+ for(si=0; si<f->slice_count; si++){
+ FFV1Context *fs= f->slice_context[si];
+ for(i=0; i<f->plane_count; i++){
+ PlaneContext *p= &fs->plane[i];
- p->interlace_bit_state[0]= 128;
- p->interlace_bit_state[1]= 128;
+ p->interlace_bit_state[0]= 128;
+ p->interlace_bit_state[1]= 128;
- for(j=0; j<p->context_count; j++){
- if(f->ac){
- memset(p->state[j], 128, sizeof(uint8_t)*CONTEXT_SIZE);
- }else{
- p->vlc_state[j].drift= 0;
- p->vlc_state[j].error_sum= 4; //FFMAX((RANGE + 32)/64, 2);
- p->vlc_state[j].bias= 0;
- p->vlc_state[j].count= 1;
+ for(j=0; j<p->context_count; j++){
+ if(fs->ac){
+ memset(p->state[j], 128, sizeof(uint8_t)*CONTEXT_SIZE);
+ }else{
+ p->vlc_state[j].drift= 0;
+ p->vlc_state[j].error_sum= 4; //FFMAX((RANGE + 32)/64, 2);
+ p->vlc_state[j].bias= 0;
+ p->vlc_state[j].count= 1;
+ }
}
}
}
}
#if CONFIG_FFV1_ENCODER
+static int encode_slice(AVCodecContext *c, void *arg){
+ FFV1Context *fs= *(void**)arg;
+ FFV1Context *f= fs->avctx->priv_data;
+ int width = fs->slice_width;
+ int height= fs->slice_height;
+ int x= fs->slice_x;
+ int y= fs->slice_y;
+ AVFrame * const p= &f->picture;
+
+ if(f->colorspace==0){
+ const int chroma_width = -((-width )>>f->chroma_h_shift);
+ const int chroma_height= -((-height)>>f->chroma_v_shift);
+ const int cx= x>>f->chroma_h_shift;
+ const int cy= y>>f->chroma_v_shift;
+
+ encode_plane(fs, p->data[0] + x + y*p->linesize[0], width, height, p->linesize[0], 0);
+
+ encode_plane(fs, p->data[1] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
+ encode_plane(fs, p->data[2] + cx+cy*p->linesize[2], chroma_width, chroma_height, p->linesize[2], 1);
+ }else{
+ encode_rgb_frame(fs, (uint32_t*)(p->data[0]) + x + y*(p->linesize[0]/4), width, height, p->linesize[0]/4);
+ }
+ emms_c();
+
+ return 0;
+}
+
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
FFV1Context *f = avctx->priv_data;
- RangeCoder * const c= &f->c;
+ RangeCoder * const c= &f->slice_context[0]->c;
AVFrame *pict = data;
- const int width= f->width;
- const int height= f->height;
AVFrame * const p= &f->picture;
int used_count= 0;
uint8_t keystate=128;
+ uint8_t *buf_p;
+ int i;
ff_init_range_encoder(c, buf, buf_size);
ff_build_rac_states(c, 0.05*(1LL<<32), 256-8);
if(!f->ac){
used_count += ff_rac_terminate(c);
//printf("pos=%d\n", used_count);
- init_put_bits(&f->pb, buf + used_count, buf_size - used_count);
+ init_put_bits(&f->slice_context[0]->pb, buf + used_count, buf_size - used_count);
}else if (f->ac>1){
int i;
for(i=1; i<256; i++){
}
}
- if(f->colorspace==0){
- const int chroma_width = -((-width )>>f->chroma_h_shift);
- const int chroma_height= -((-height)>>f->chroma_v_shift);
-
- encode_plane(f, p->data[0], width, height, p->linesize[0], 0);
+ for(i=1; i<f->slice_count; i++){
+ FFV1Context *fs= f->slice_context[i];
+ uint8_t *start= buf + (buf_size-used_count)*i/f->slice_count;
+ int len= buf_size/f->slice_count;
- encode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1);
- encode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1);
- }else{
- encode_rgb_frame(f, (uint32_t*)(p->data[0]), width, height, p->linesize[0]/4);
+ if(fs->ac){
+ ff_init_range_encoder(&fs->c, start, len);
+ }else{
+ init_put_bits(&fs->pb, start, len);
+ }
}
- emms_c();
+ avctx->execute(avctx, encode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*));
- f->picture_number++;
+ buf_p=buf;
+ for(i=0; i<f->slice_count; i++){
+ FFV1Context *fs= f->slice_context[i];
+ int bytes;
- if(f->ac){
- return ff_rac_terminate(c);
- }else{
- flush_put_bits(&f->pb); //nicer padding FIXME
- return used_count + (put_bits_count(&f->pb)+7)/8;
+ if(fs->ac){
+ uint8_t state=128;
+ put_rac(&fs->c, &state, 0);
+ bytes= ff_rac_terminate(&fs->c);
+ }else{
+ flush_put_bits(&fs->pb); //nicer padding FIXME
+ bytes= used_count + (put_bits_count(&fs->pb)+7)/8;
+ used_count= 0;
+ }
+ if(i>0){
+ av_assert0(bytes < buf_size/f->slice_count);
+ memmove(buf_p, fs->ac ? fs->c.bytestream_start : fs->pb.buf, bytes);
+ av_assert0(bytes < (1<<24));
+ AV_WB24(buf_p+bytes, bytes);
+ bytes+=3;
+ }
+ buf_p += bytes;
}
+
+ if((avctx->flags&CODEC_FLAG_PASS1) && (f->picture_number&31)==0){
+ int j;
+ char *p= avctx->stats_out;
+ char *end= p + 1024*30;
+
+ memset(f->rc_stat, 0, sizeof(f->rc_stat));
+ for(j=0; j<f->slice_count; j++){
+ FFV1Context *fs= f->slice_context[j];
+ for(i=0; i<256; i++){
+ f->rc_stat[i][0] += fs->rc_stat[i][0];
+ f->rc_stat[i][1] += fs->rc_stat[i][1];
+ }
+ }
+
+ for(j=0; j<256; j++){
+ snprintf(p, end-p, "%"PRIu64" %"PRIu64" ", f->rc_stat[j][0], f->rc_stat[j][1]);
+ p+= strlen(p);
+ }
+ snprintf(p, end-p, "\n");
+ } else
+ avctx->stats_out[0] = '\0';
+
+ f->picture_number++;
+ return buf_p-buf;
}
#endif /* CONFIG_FFV1_ENCODER */
static av_cold int common_end(AVCodecContext *avctx){
FFV1Context *s = avctx->priv_data;
- int i;
+ int i, j;
- for(i=0; i<s->plane_count; i++){
- PlaneContext *p= &s->plane[i];
+ for(j=0; j<s->slice_count; j++){
+ FFV1Context *fs= s->slice_context[j];
+ for(i=0; i<s->plane_count; i++){
+ PlaneContext *p= &fs->plane[i];
- av_freep(&p->state);
- av_freep(&p->vlc_state);
+ av_freep(&p->state);
+ av_freep(&p->vlc_state);
+ }
+ av_freep(&fs->sample_buffer);
}
- av_freep(&s->sample_buffer);
+ av_freep(&avctx->stats_out);
return 0;
}
for(x=0; x<w; x++){
int diff, context, sign;
- context= get_context(s, sample[1] + x, sample[0] + x, sample[1] + x);
+ context= get_context(p, sample[1] + x, sample[0] + x, sample[1] + x);
if(context < 0){
context= -context;
sign=1;
}else
sign=0;
+ av_assert2(context < p->context_count);
if(s->ac){
diff= get_symbol_inline(c, p->state[context], 1);
}
}
+static int decode_slice(AVCodecContext *c, void *arg){
+ FFV1Context *fs= *(void**)arg;
+ FFV1Context *f= fs->avctx->priv_data;
+ int width = fs->slice_width;
+ int height= fs->slice_height;
+ int x= fs->slice_x;
+ int y= fs->slice_y;
+ AVFrame * const p= &f->picture;
+
+ av_assert1(width && height);
+ if(f->colorspace==0){
+ const int chroma_width = -((-width )>>f->chroma_h_shift);
+ const int chroma_height= -((-height)>>f->chroma_v_shift);
+ const int cx= x>>f->chroma_h_shift;
+ const int cy= y>>f->chroma_v_shift;
+ decode_plane(fs, p->data[0] + x + y*p->linesize[0], width, height, p->linesize[0], 0);
+
+ decode_plane(fs, p->data[1] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[1], 1);
+ decode_plane(fs, p->data[2] + cx+cy*p->linesize[1], chroma_width, chroma_height, p->linesize[2], 1);
+ }else{
+ decode_rgb_frame(fs, (uint32_t*)p->data[0] + x + y*(p->linesize[0]/4), width, height, p->linesize[0]/4);
+ }
+
+ emms_c();
+
+ return 0;
+}
+
static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale){
int v;
int i=0;
return 2*v - 1;
}
-static int read_quant_tables(RangeCoder *c, int16_t quant_table[5][256]){
+static int read_quant_tables(RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256]){
int i;
int context_count=1;
static int read_extra_header(FFV1Context *f){
RangeCoder * const c= &f->c;
uint8_t state[CONTEXT_SIZE];
- int i,context_count;
+ int i;
memset(state, 128, sizeof(state));
f->chroma_v_shift= get_symbol(c, state, 0);
get_rac(c, state); //transparency plane
f->plane_count= 2;
- context_count= read_quant_tables(c, f->quant_table);
- if(context_count < 0){
- av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
+ f->num_h_slices= 1 + get_symbol(c, state, 0);
+ f->num_v_slices= 1 + get_symbol(c, state, 0);
+ if(f->num_h_slices > (unsigned)f->width || f->num_v_slices > (unsigned)f->height){
+ av_log(f->avctx, AV_LOG_ERROR, "too many slices\n");
return -1;
}
- for(i=0; i<f->plane_count; i++){
- PlaneContext * const p= &f->plane[i];
-
- p->context_count= context_count;
- if(f->ac){
- if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
- }else{
- if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
+ f->quant_table_count= get_symbol(c, state, 0);
+ if(f->quant_table_count > (unsigned)MAX_QUANT_TABLES)
+ return -1;
+ for(i=0; i<f->quant_table_count; i++){
+ if((f->context_count[i]= read_quant_tables(c, f->quant_tables[i])) < 0){
+ av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
+ return -1;
}
}
static int read_header(FFV1Context *f){
uint8_t state[CONTEXT_SIZE];
- int i, context_count;
- RangeCoder * const c= &f->c;
+ int i, j, context_count;
+ RangeCoder * const c= &f->slice_context[0]->c;
memset(state, 128, sizeof(state));
if(f->version < 2){
- f->version= get_symbol(c, state, 0);
- f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
- if(f->ac>1){
- for(i=1; i<256; i++){
- f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i];
+ f->version= get_symbol(c, state, 0);
+ f->ac= f->avctx->coder_type= get_symbol(c, state, 0);
+ if(f->ac>1){
+ for(i=1; i<256; i++){
+ f->state_transition[i]= get_symbol(c, state, 1) + c->one_state[i];
+ }
}
- }
- f->colorspace= get_symbol(c, state, 0); //YUV cs type
- if(f->version>0)
- f->avctx->bits_per_raw_sample= get_symbol(c, state, 0);
- get_rac(c, state); //no chroma = false
- f->chroma_h_shift= get_symbol(c, state, 0);
- f->chroma_v_shift= get_symbol(c, state, 0);
- get_rac(c, state); //transparency plane
- f->plane_count= 2;
+ f->colorspace= get_symbol(c, state, 0); //YUV cs type
+ if(f->version>0)
+ f->avctx->bits_per_raw_sample= get_symbol(c, state, 0);
+ get_rac(c, state); //no chroma = false
+ f->chroma_h_shift= get_symbol(c, state, 0);
+ f->chroma_v_shift= get_symbol(c, state, 0);
+ get_rac(c, state); //transparency plane
+ f->plane_count= 2;
}
if(f->colorspace==0){
//printf("%d %d %d\n", f->chroma_h_shift, f->chroma_v_shift,f->avctx->pix_fmt);
if(f->version < 2){
- context_count= read_quant_tables(c, f->quant_table);
- if(context_count < 0){
- av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
+ context_count= read_quant_tables(c, f->quant_table);
+ if(context_count < 0){
+ av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");
+ return -1;
+ }
+ }else{
+ f->slice_count= get_symbol(c, state, 0);
+ if(f->slice_count > (unsigned)MAX_SLICES)
return -1;
+ }
+
+ for(j=0; j<f->slice_count; j++){
+ FFV1Context *fs= f->slice_context[j];
+ fs->ac= f->ac;
+
+ if(f->version >= 2){
+ fs->slice_x = get_symbol(c, state, 0) *f->width ;
+ fs->slice_y = get_symbol(c, state, 0) *f->height;
+ fs->slice_width =(get_symbol(c, state, 0)+1)*f->width + fs->slice_x;
+ fs->slice_height=(get_symbol(c, state, 0)+1)*f->height + fs->slice_y;
+
+ fs->slice_x /= f->num_h_slices;
+ fs->slice_y /= f->num_v_slices;
+ fs->slice_width = fs->slice_width /f->num_h_slices - fs->slice_x;
+ fs->slice_height = fs->slice_height/f->num_v_slices - fs->slice_y;
+ if((unsigned)fs->slice_width > f->width || (unsigned)fs->slice_height > f->height)
+ return -1;
+ if( (unsigned)fs->slice_x + (uint64_t)fs->slice_width > f->width
+ || (unsigned)fs->slice_y + (uint64_t)fs->slice_height > f->height)
+ return -1;
}
- for(i=0; i<f->plane_count; i++){
- PlaneContext * const p= &f->plane[i];
+ for(i=0; i<f->plane_count; i++){
+ PlaneContext * const p= &fs->plane[i];
- p->context_count= context_count;
+ if(f->version >= 2){
+ int idx=get_symbol(c, state, 0);
+ if(idx > (unsigned)f->quant_table_count){
+ av_log(f->avctx, AV_LOG_ERROR, "quant_table_index out of range\n");
+ return -1;
+ }
+ p->quant_table_index= idx;
+ memcpy(p->quant_table, f->quant_tables[idx], sizeof(p->quant_table));
+ context_count= f->context_count[idx];
+ }else{
+ memcpy(p->quant_table, f->quant_table, sizeof(p->quant_table));
+ }
- if(f->ac){
- if(!p->state) p->state= av_malloc(CONTEXT_SIZE*p->context_count*sizeof(uint8_t));
- }else{
- if(!p->vlc_state) p->vlc_state= av_malloc(p->context_count*sizeof(VlcState));
+ if(p->context_count < context_count){
+ av_freep(&p->state);
+ av_freep(&p->vlc_state);
+ }
+ p->context_count= context_count;
}
}
- }
return 0;
}
common_init(avctx);
- if(avctx->extradata)
- return read_extra_header(f);
+ if(avctx->extradata && read_extra_header(f) < 0)
+ return -1;
+
+ if(init_slice_contexts(f) < 0)
+ return -1;
return 0;
}
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
FFV1Context *f = avctx->priv_data;
- RangeCoder * const c= &f->c;
- const int width= f->width;
- const int height= f->height;
+ RangeCoder * const c= &f->slice_context[0]->c;
AVFrame * const p= &f->picture;
- int bytes_read;
+ int bytes_read, i;
uint8_t keystate= 128;
+ const uint8_t *buf_p;
AVFrame *picture = data;
p->key_frame= 1;
if(read_header(f) < 0)
return -1;
+ if(init_slice_state(f) < 0)
+ return -1;
+
clear_state(f);
}else{
p->key_frame= 0;
}
}
- if(!f->plane[0].state && !f->plane[0].vlc_state)
- return -1;
-
p->reference= 0;
if(avctx->get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
bytes_read = c->bytestream - c->bytestream_start - 1;
if(bytes_read ==0) av_log(avctx, AV_LOG_ERROR, "error at end of AC stream\n"); //FIXME
//printf("pos=%d\n", bytes_read);
- init_get_bits(&f->gb, buf + bytes_read, buf_size - bytes_read);
+ init_get_bits(&f->slice_context[0]->gb, buf + bytes_read, buf_size - bytes_read);
} else {
bytes_read = 0; /* avoid warning */
}
- if(f->colorspace==0){
- const int chroma_width = -((-width )>>f->chroma_h_shift);
- const int chroma_height= -((-height)>>f->chroma_v_shift);
- decode_plane(f, p->data[0], width, height, p->linesize[0], 0);
-
- decode_plane(f, p->data[1], chroma_width, chroma_height, p->linesize[1], 1);
- decode_plane(f, p->data[2], chroma_width, chroma_height, p->linesize[2], 1);
- }else{
- decode_rgb_frame(f, (uint32_t*)p->data[0], width, height, p->linesize[0]/4);
+ buf_p= buf + buf_size;
+ for(i=f->slice_count-1; i>0; i--){
+ FFV1Context *fs= f->slice_context[i];
+ int v= AV_RB24(buf_p-3)+3;
+ if(buf_p - buf <= v){
+ av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n");
+ return -1;
+ }
+ buf_p -= v;
+ if(fs->ac){
+ ff_init_range_decoder(&fs->c, buf_p, v);
+ }else{
+ init_get_bits(&fs->gb, buf_p, v);
+ }
}
- emms_c();
-
+ avctx->execute(avctx, decode_slice, &f->slice_context[0], NULL, f->slice_count, sizeof(void*));
f->picture_number++;
*picture= *p;
*data_size = sizeof(AVFrame);
- if(f->ac){
- bytes_read= c->bytestream - c->bytestream_start - 1;
- if(bytes_read ==0) av_log(f->avctx, AV_LOG_ERROR, "error at end of frame\n");
- }else{
- bytes_read+= (get_bits_count(&f->gb)+7)/8;
- }
-
- return bytes_read;
+ return buf_size;
}
AVCodec ffv1_decoder = {
projects / ffmpeg / blobdiff