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Fix deblocking filter for field pictures by properly looking for first

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row in bottom fields and preventing the use of "fast" deblocking for such.

Originally committed as revision 10950 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jeff Downs 2007-11-07 23:35:48 +00:00
parent 85f601ee7b
commit ad426590d8
1 changed files with 2 additions and 1 deletions
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3
libavcodec/h264.c
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@ -6371,12 +6371,13 @@ static void filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int16_t
static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {
MpegEncContext * const s = &h->s;
int mb_y_firstrow = s->picture_structure == PICT_BOTTOM_FIELD;
int mb_xy, mb_type;
int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
mb_xy = mb_x + mb_y*s->mb_stride;
if(mb_x==0 || mb_y==0 || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
if(mb_x==0 || mb_y==mb_y_firstrow || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
(h->deblocking_filter == 2 && (h->slice_table[mb_xy] != h->slice_table[h->top_mb_xy] ||
h->slice_table[mb_xy] != h->slice_table[mb_xy - 1]))) {
filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);