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| author | Wolfgang Hesseler <qv@multimediaware.com> | 2004-02-25 18:29:17 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2004-02-25 18:29:17 +0000 |
| commit | 8289c6faa801181882d361789c80a01ca82e2622 (patch) | |
| tree | bc8bf0a67e6a62a6947b5e2af4b63ecedc1cbe8e /libavcodec/mpegvideo.c | |
| parent | 5a815088d3341431eacbcb232bc8fa29296cbd0c (diff) | |
| download | ffmpeg-8289c6faa801181882d361789c80a01ca82e2622.tar.gz | |
export DCT coefficients patch by (Wolfgang Hesseler <wolfgang.hesseler at imk dot fraunhofer dot de>)
Originally committed as revision 2816 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegvideo.c')
| -rw-r--r-- | libavcodec/mpegvideo.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 3ce01c43aa..93c7198294 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -354,6 +354,9 @@ static int alloc_picture(MpegEncContext *s, Picture *pic, int shared){ } pic->motion_subsample_log2= 3; } + if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { + CHECKED_ALLOCZ(pic->dct_coeff, 64 * mb_array_size * sizeof(DCTELEM)*6) + } pic->qstride= s->mb_stride; CHECKED_ALLOCZ(pic->pan_scan , 1 * sizeof(AVPanScan)) } @@ -385,6 +388,7 @@ static void free_picture(MpegEncContext *s, Picture *pic){ av_freep(&pic->mbskip_table); av_freep(&pic->qscale_table); av_freep(&pic->mb_type_base); + av_freep(&pic->dct_coeff); av_freep(&pic->pan_scan); pic->mb_type= NULL; for(i=0; i<2; i++){ @@ -3080,6 +3084,15 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]) mb_x = s->mb_x; mb_y = s->mb_y; + if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { + /* save DCT coefficients */ + int i,j; + DCTELEM *dct = &s->current_picture.dct_coeff[mb_xy*64*6]; + for(i=0; i<6; i++) + for(j=0; j<64; j++) + *dct++ = block[i][s->dsp.idct_permutation[j]]; + } + s->current_picture.qscale_table[mb_xy]= s->qscale; /* update DC predictors for P macroblocks */ |