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Allocate and clear FF_INPUT_BUFFER_PADDING_SIZE bytes at the end of mkv

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extradata.

Fixes valgrind invalid read warnings during H.264 extradata parsing.

Originally committed as revision 16229 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alexander Strange 2008-12-19 01:00:44 +00:00
parent 712ca84c21
commit 1ca610c015
1 changed files with 2 additions and 1 deletions
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libavformat/matroskadec.c
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@ -1304,7 +1304,8 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->codec->extradata = extradata;
st->codec->extradata_size = extradata_size;
} else if(track->codec_priv.data && track->codec_priv.size > 0){
st->codec->extradata = av_malloc(track->codec_priv.size);
st->codec->extradata = av_mallocz(track->codec_priv.size +
FF_INPUT_BUFFER_PADDING_SIZE);
if(st->codec->extradata == NULL)
return AVERROR(ENOMEM);
st->codec->extradata_size = track->codec_priv.size;