From: Aman Gupta <a...@tmm1.net>
Before adding uvlinesize check, I was seeing failures decoding
some samples (shown with extra logging added):
[mpeg2video @ 0x7fa193818c00] get_buffer() failed (stride changed:
linesize=1280/1280 uvlinesize=0/640)
[mpeg2video @ 0x7fa193818c00] get_buffer() failed (stride changed:
linesize=1280/1280 uvlinesize=0/640)
---
libavcodec/mpegpicture.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libavcodec/mpegpicture.c b/libavcodec/mpegpicture.c
index 2be670cdbc..80898c161c 100644
--- a/libavcodec/mpegpicture.c
+++ b/libavcodec/mpegpicture.c
@@ -148,10 +148,13 @@ static int alloc_frame_buffer(AVCodecContext *avctx,
Picture *pic,
}
}
- if (linesize && (linesize != pic->f->linesize[0] ||
- uvlinesize != pic->f->linesize[1])) {
+ if (linesize && uvlinesize &&
+ (linesize != pic->f->linesize[0] ||
+ uvlinesize != pic->f->linesize[1])) {
av_log(avctx, AV_LOG_ERROR,
- "get_buffer() failed (stride changed)\n");
+ "get_buffer() failed (stride changed: linesize=%d/%d
uvlinesize=%d/%d)\n",
+ linesize, pic->f->linesize[0],
+ uvlinesize, pic->f->linesize[1]);
ff_mpeg_unref_picture(avctx, pic);
return -1;
}
--
2.14.2
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