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support doing motion estimation and compensation without any residual transform or coding

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this is usefull for filters which need ME/MC

Originally committed as revision 5456 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-06-04 21:54:58 +00:00
parent a9d4a6ef34
commit 086bfd256e
2 changed files with 16 additions and 0 deletions
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1
libavcodec/avcodec.h
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@ -343,6 +343,7 @@ extern int motion_estimation_method;
#define CODEC_FLAG2_AUD 0x00000200 ///< H.264 access unit delimiters
#define CODEC_FLAG2_BRDO 0x00000400 ///< b-frame rate-distortion optimization
#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< use MPEG-2 intra VLC table
#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
/* Unsupported options :
* Syntax Arithmetic coding (SAC)

15
libavcodec/snow.c
View File

@ -4261,6 +4261,7 @@ redo_frame:
int x, y;
// int bits= put_bits_count(&s->c.pb);
if(!(avctx->flags2 & CODEC_FLAG2_MEMC_ONLY)){
//FIXME optimize
if(pict->data[plane_index]) //FIXME gray hack
for(y=0; y<h; y++){
@ -4330,6 +4331,20 @@ redo_frame:
{START_TIMER
predict_plane(s, s->spatial_dwt_buffer, plane_index, 1);
STOP_TIMER("pred-conv")}
}else{
//ME/MC only
if(pict->pict_type == I_TYPE){
for(y=0; y<h; y++){
for(x=0; x<w; x++){
s->current_picture.data[plane_index][y*s->current_picture.linesize[plane_index] + x]=
pict->data[plane_index][y*pict->linesize[plane_index] + x];
}
}
}else{
memset(s->spatial_dwt_buffer, 0, sizeof(DWTELEM)*w*h);
predict_plane(s, s->spatial_dwt_buffer, plane_index, 1);
}
}
if(s->avctx->flags&CODEC_FLAG_PSNR){
int64_t error= 0;