mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/mpegvideo: fix buffer clear code so it should work with negative linesizes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
parent
5642dd41cc
commit
42361bdf51
|
@ -1774,14 +1774,15 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
memset(s->last_picture_ptr->f.data[0], 0x80,
|
for(i=0; i<avctx->height; i++)
|
||||||
avctx->height * s->last_picture_ptr->f.linesize[0]);
|
memset(s->last_picture_ptr->f.data[0] + s->last_picture_ptr->f.linesize[0]*i,
|
||||||
memset(s->last_picture_ptr->f.data[1], 0x80,
|
0x80, avctx->width);
|
||||||
(avctx->height >> v_chroma_shift) *
|
for(i=0; i<FF_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
|
||||||
s->last_picture_ptr->f.linesize[1]);
|
memset(s->last_picture_ptr->f.data[1] + s->last_picture_ptr->f.linesize[1]*i,
|
||||||
memset(s->last_picture_ptr->f.data[2], 0x80,
|
0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
|
||||||
(avctx->height >> v_chroma_shift) *
|
memset(s->last_picture_ptr->f.data[2] + s->last_picture_ptr->f.linesize[2]*i,
|
||||||
s->last_picture_ptr->f.linesize[2]);
|
0x80, FF_CEIL_RSHIFT(avctx->width, h_chroma_shift));
|
||||||
|
}
|
||||||
|
|
||||||
if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
|
if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
|
||||||
for(i=0; i<avctx->height; i++)
|
for(i=0; i<avctx->height; i++)
|
||||||
|
|
Loading…
Reference in New Issue