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avcodec/wma: Check initializing VLC 

Initializing a VLC entails implicit allocations which may fail.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-05-06 17:08:44 +02:00
parent fcdb012a10
commit cb8f01951b
1 changed files with 4 additions and 2 deletions
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6
libavcodec/wma.c
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@ -41,9 +41,11 @@ static av_cold int init_coef_vlc(VLC *vlc, uint16_t **prun_table,
const uint16_t *levels_table = vlc_table->levels;
uint16_t *run_table, *int_table;
float *flevel_table;
int i, l, j, k, level;
int i, l, j, k, level, ret;
init_vlc(vlc, VLCBITS, n, table_bits, 1, 1, table_codes, 4, 4, 0);
ret = init_vlc(vlc, VLCBITS, n, table_bits, 1, 1, table_codes, 4, 4, 0);
if (ret < 0)
return ret;
run_table = av_malloc_array(n, sizeof(uint16_t));
flevel_table = av_malloc_array(n, sizeof(*flevel_table));