virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

make changing spatial_decomposition_count per frame work

Browse Source 
Originally committed as revision 10464 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-09-09 18:28:36 +00:00
parent ba430e0cfa
commit 8db1372814
1 changed files with 19 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
libavcodec/snow.c
View File

@ -454,6 +454,7 @@ typedef struct SnowContext{
int last_spatial_decomposition_type;
int temporal_decomposition_type;
int spatial_decomposition_count;
int last_spatial_decomposition_count;
int temporal_decomposition_count;
int max_ref_frames;
int ref_frames;
@ -3588,11 +3589,12 @@ static void encode_header(SnowContext *s){
memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
}
}
put_rac(&s->c, s->header_state, 0);
if(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);
}
put_symbol(&s->c, s->header_state, s->spatial_decomposition_type - s->last_spatial_decomposition_type, 1);
@ -3606,6 +3608,7 @@ static void encode_header(SnowContext *s){
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){
@ -3937,7 +3940,6 @@ static int encode_init(AVCodecContext *avctx)
return -1;
}
s->spatial_decomposition_count= 5;
s->spatial_decomposition_type= avctx->prediction_method; //FIXME add decorrelator type r transform_type
s->chroma_h_shift= 1; //FIXME XXX
@ -3956,7 +3958,6 @@ static int encode_init(AVCodecContext *avctx)
}
common_init(avctx);
common_init_after_header(avctx);
alloc_blocks(s);
s->version=0;
@ -3983,11 +3984,6 @@ static int encode_init(AVCodecContext *avctx)
}
s->pass1_rc= !(avctx->flags & (CODEC_FLAG_QSCALE|CODEC_FLAG_PASS2));
for(plane_index=0; plane_index<3; plane_index++){
calculate_vissual_weight(s, &s->plane[plane_index]);
}
avctx->coded_frame= &s->current_picture;
switch(avctx->pix_fmt){
// case PIX_FMT_YUV444P:
@ -4213,9 +4209,22 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
redo_frame:
if(pict->pict_type == I_TYPE)
s->spatial_decomposition_count= 5;
else
s->spatial_decomposition_count= 5;
s->m.pict_type = pict->pict_type;
s->qbias= pict->pict_type == P_TYPE ? 2 : 0;
common_init_after_header(avctx);
if(s->last_spatial_decomposition_count != s->spatial_decomposition_count){
for(plane_index=0; plane_index<3; plane_index++){
calculate_vissual_weight(s, &s->plane[plane_index]);
}
}
encode_header(s);
s->m.misc_bits = 8*(s->c.bytestream - s->c.bytestream_start);
encode_blocks(s, 1);