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avformat/movenc: avoid using uninitialized display_matrix_size 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-21 00:24:31 +01:00
parent 276a8666d2
commit 3c5c6870a7
1 changed files with 1 additions and 1 deletions
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2
libavformat/movenc.c
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@ -2302,7 +2302,7 @@ static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov,
display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
&display_matrix_size);
if (display_matrix_size < 9 * sizeof(*display_matrix))
if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix))
display_matrix = NULL;
}