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FFplay : Avoid manipulating NULL data pointers so that future checks

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remain valid. This fixes segfaults for those cases where data copy to
this invalid pointer is attempted.

Originally committed as revision 23264 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jai Menon 2010-05-23 19:13:17 +00:00
parent 47f0704eb2
commit 3635c07bd1
1 changed files with 2 additions and 0 deletions
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ffplay.c
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@ -1591,7 +1591,9 @@ static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
unsigned hshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_w;
unsigned vshift = i == 0 ? 0 : av_pix_fmt_descriptors[ref->pic->format].log2_chroma_h;
if (ref->data[i]) {
ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
}
pic->data[i] = ref->data[i];
pic->linesize[i] = ref->linesize[i];
}