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avcodec/mpegvideo: Check pointer when allocation fail 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Roman Savchenko 2015-05-28 18:25:57 +03:00 committed by Michael Niedermayer
parent e85d91da48
commit e5d1152ccc
1 changed files with 5 additions and 2 deletions
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7
libavcodec/mpegvideo.c
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@ -1045,11 +1045,14 @@ do {\
if (s1->bitstream_buffer) {
if (s1->bitstream_buffer_size +
FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
av_fast_malloc(&s->bitstream_buffer,
&s->allocated_bitstream_buffer_size,
s1->allocated_bitstream_buffer_size);
s->bitstream_buffer_size = s1->bitstream_buffer_size;
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
}
s->bitstream_buffer_size = s1->bitstream_buffer_size;
memcpy(s->bitstream_buffer, s1->bitstream_buffer,
s1->bitstream_buffer_size);
memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,