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mlp: Only initialize VLC tables once. This caused a crash when multiple 

instances of the decoder were started at different times.
Bug reported by Maxim Anisiutkin.

Originally committed as revision 20254 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2009-10-16 16:10:00 +00:00
parent 33815fa106
commit 7fd8806924
1 changed files with 2 additions and 0 deletions
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2
libavcodec/mlpdec.c
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@ -155,6 +155,7 @@ static VLC huff_vlc[3];
static av_cold void init_static(void)
{
if (!huff_vlc[0].bits) {
INIT_VLC_STATIC(&huff_vlc[0], VLC_BITS, 18,
&ff_mlp_huffman_tables[0][0][1], 2, 1,
&ff_mlp_huffman_tables[0][0][0], 2, 1, 512);
@ -164,6 +165,7 @@ static av_cold void init_static(void)
INIT_VLC_STATIC(&huff_vlc[2], VLC_BITS, 15,
&ff_mlp_huffman_tables[2][0][1], 2, 1,
&ff_mlp_huffman_tables[2][0][0], 2, 1, 512);
}
ff_mlp_init_crc();
}