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4xm: allocate extradata properly.

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Pad it with the required amount of zeros, check for malloc failure.
This commit is contained in:
Anton Khirnov 2014-05-03 08:50:41 +02:00
parent fd056029f4
commit d256ed78ff
1 changed files with 4 additions and 1 deletions
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5
libavformat/4xm.c
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@ -110,8 +110,11 @@ static int parse_vtrk(AVFormatContext *s,
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_4XM;
st->codec->extradata = av_mallocz(4 + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
st->codec->extradata_size = 4;
st->codec->extradata = av_malloc(4);
AV_WL32(st->codec->extradata, AV_RL32(buf + 16));
st->codec->width = AV_RL32(buf + 36);
st->codec->height = AV_RL32(buf + 40);