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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-07-10 02:01:17 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-07-18 20:23:45 +0200 |
| commit | 0df814cf97310903eecd6b44c0f828c7da52905a (patch) | |
| tree | ff6664f02897ad12c88c09e351c31b963a4b3329 | |
| parent | 88fa3243ddf320ce1d6691c6098e87263bd6d0ca (diff) | |
| download | ffmpeg-0df814cf97310903eecd6b44c0f828c7da52905a.tar.gz | |
avcodec/utils: use a minimum 32pixel width in avcodec_align_dimensions2() for H.264
Fixes Assertion failure
Found-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7ef6656b1e5bfbc7499013d3b38b093b6b2f31ec)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/utils.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 558afebc2f..6596aeae2b 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -428,10 +428,12 @@ void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, *width = FFALIGN(*width, w_align); *height = FFALIGN(*height, h_align); - if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) + if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) { // some of the optimized chroma MC reads one line too much // which is also done in mpeg decoders with lowres > 0 *height += 2; + *width = FFMAX(*width, 32); + } for (i = 0; i < 4; i++) linesize_align[i] = STRIDE_ALIGN; |