videolan/ffmpeg
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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  mpegvideo: initialize dummy reference frames.

Conflicts:
	libavcodec/mpegvideo.c
	tests/ref/fate/filter-yadif-mode1

The luma init is left at 0x80 as it was previously, and tested and
working since a long time. Its also mandated to be 0x80 by at least
one specification. Cases that need different values already had
code in place to handle them.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-02-06 16:59:32 +01:00
commit 78dc4cb26d
1 changed files with 12 additions and 0 deletions
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12
libavcodec/mpegvideo.c
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@ -1465,6 +1465,9 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
s->last_picture_ptr->f.data[0] == NULL) &&
(s->pict_type != AV_PICTURE_TYPE_I ||
s->picture_structure != PICT_FRAME)) {
int h_chroma_shift, v_chroma_shift;
av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
&h_chroma_shift, &v_chroma_shift);
if (s->pict_type != AV_PICTURE_TYPE_I)
av_log(avctx, AV_LOG_ERROR,
"warning: first frame is no keyframe\n");
@ -1485,6 +1488,15 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
return -1;
}
memset(s->last_picture_ptr->f.data[0], 0x80,
avctx->height * s->last_picture_ptr->f.linesize[0]);
memset(s->last_picture_ptr->f.data[1], 0x80,
(avctx->height >> v_chroma_shift) *
s->last_picture_ptr->f.linesize[1]);
memset(s->last_picture_ptr->f.data[2], 0x80,
(avctx->height >> v_chroma_shift) *
s->last_picture_ptr->f.linesize[2]);
if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
for(i=0; i<avctx->height; i++)
memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i, 16, avctx->width);