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change a variable-length array to a malloc.

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Originally committed as revision 23103 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2010-05-12 22:38:05 +00:00
parent 7693b93e5c
commit f39ab2071f
1 changed files with 8 additions and 3 deletions
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11
libavcodec/bitstream.c
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@ -275,8 +275,8 @@ int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
const void *symbols, int symbols_wrap, int symbols_size,
int flags)
{
VLCcode buf[nb_codes];
int i, j;
VLCcode *buf;
int i, j, ret;
vlc->bits = nb_bits;
if(flags & INIT_VLC_USE_NEW_STATIC){
@ -295,6 +295,8 @@ int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
av_log(NULL,AV_LOG_DEBUG,"build table nb_codes=%d\n", nb_codes);
#endif
buf = av_malloc((nb_codes+1)*sizeof(VLCcode));
assert(symbols_size <= 2 || !symbols);
j = 0;
#define COPY(condition)\
@ -319,7 +321,10 @@ int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
COPY(buf[j].bits && buf[j].bits <= nb_bits);
nb_codes = j;
if (build_table(vlc, nb_bits, nb_codes, buf, flags) < 0) {
ret = build_table(vlc, nb_bits, nb_codes, buf, flags);
av_free(buf);
if (ret < 0) {
av_freep(&vlc->table);
return -1;
}