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| author | Michael Niedermayer <michaelni@gmx.at> | 2003-12-21 20:06:59 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-12-21 20:06:59 +0000 |
| commit | 8135f8df524706b9760c699a7bc13417acd8a516 (patch) | |
| tree | b39edd17d609b211f512415c8c626a79bd0bdf58 /libavcodec/h263.c | |
| parent | bed1707c9c274831173902542aaef1f8428e6331 (diff) | |
| download | ffmpeg-8135f8df524706b9760c699a7bc13417acd8a516.tar.gz | |
rv20 / h263 b frame fix
Originally committed as revision 2628 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/h263.c')
| -rw-r--r-- | libavcodec/h263.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/libavcodec/h263.c b/libavcodec/h263.c index df520545f6..916cb764a5 100644 --- a/libavcodec/h263.c +++ b/libavcodec/h263.c @@ -1548,9 +1548,9 @@ int16_t *h263_pred_motion2(MpegEncContext * s, int block, int dir, static const int off[4]= {2, 1, 1, -1}; wrap = s->b8_stride; - xy = s->mb_x + s->mb_y * wrap; + xy = 2*(s->mb_x + s->mb_y * wrap); - mot_val = s->current_picture.motion_val[0][dir] + xy; + mot_val = s->current_picture.motion_val[dir] + xy; A = mot_val[ - 1]; /* special case for first (slice) line */ @@ -3815,15 +3815,15 @@ int ff_h263_decode_mb(MpegEncContext *s, } else if(s->pict_type==B_TYPE) { int mb_type; const int stride= s->b8_stride; - int16_t *mot_val0 = s->current_picture.motion_val[0][ s->mb_x + s->mb_y*stride ]; - int16_t *mot_val1 = s->current_picture.motion_val[1][ s->mb_x + s->mb_y*stride ]; + int16_t *mot_val0 = s->current_picture.motion_val[0][ 2*(s->mb_x + s->mb_y*stride) ]; + int16_t *mot_val1 = s->current_picture.motion_val[1][ 2*(s->mb_x + s->mb_y*stride) ]; // const int mv_xy= s->mb_x + 1 + s->mb_y * s->mb_stride; //FIXME ugly - mot_val0[0 ]= mot_val0[2 ]= mot_val0[0+stride]= mot_val0[2+stride]= 0; - mot_val0[1 ]= mot_val0[3 ]= mot_val0[1+stride]= mot_val0[3+stride]= 0; - mot_val1[0 ]= mot_val1[2 ]= mot_val1[0+stride]= mot_val1[2+stride]= 0; - mot_val1[1 ]= mot_val1[3 ]= mot_val1[1+stride]= mot_val1[3+stride]= 0; + mot_val0[0 ]= mot_val0[2 ]= mot_val0[0+2*stride]= mot_val0[2+2*stride]= + mot_val0[1 ]= mot_val0[3 ]= mot_val0[1+2*stride]= mot_val0[3+2*stride]= + mot_val1[0 ]= mot_val1[2 ]= mot_val1[0+2*stride]= mot_val1[2+2*stride]= + mot_val1[1 ]= mot_val1[3 ]= mot_val1[1+2*stride]= mot_val1[3+2*stride]= 0; do{ mb_type= get_vlc2(&s->gb, h263_mbtype_b_vlc.table, H263_MBTYPE_B_VLC_BITS, 2); @@ -3877,22 +3877,24 @@ int ff_h263_decode_mb(MpegEncContext *s, mx = h263_decode_motion(s, mx, 1); my = h263_decode_motion(s, my, 1); + s->mv[0][0][0] = mx; s->mv[0][0][1] = my; - mot_val[0 ]= mot_val[2 ]= mot_val[0+stride]= mot_val[2+stride]= mx; - mot_val[1 ]= mot_val[3 ]= mot_val[1+stride]= mot_val[3+stride]= my; + mot_val[0 ]= mot_val[2 ]= mot_val[0+2*stride]= mot_val[2+2*stride]= mx; + mot_val[1 ]= mot_val[3 ]= mot_val[1+2*stride]= mot_val[3+2*stride]= my; } if(USES_LIST(mb_type, 1)){ int16_t *mot_val= h263_pred_motion2(s, 0, 1, &mx, &my); s->mv_dir |= MV_DIR_BACKWARD; - + mx = h263_decode_motion(s, mx, 1); my = h263_decode_motion(s, my, 1); + s->mv[1][0][0] = mx; s->mv[1][0][1] = my; - mot_val[0 ]= mot_val[2 ]= mot_val[0+stride]= mot_val[2+stride]= mx; - mot_val[1 ]= mot_val[3 ]= mot_val[1+stride]= mot_val[3+stride]= my; + mot_val[0 ]= mot_val[2 ]= mot_val[0+2*stride]= mot_val[2+2*stride]= mx; + mot_val[1 ]= mot_val[3 ]= mot_val[1+2*stride]= mot_val[3+2*stride]= my; } } |