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avcodec/mpegaudiodec_template: Apply shift during init 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-11-17 21:37:21 +01:00
parent c778f2266d
commit b9d475393e
1 changed files with 3 additions and 3 deletions
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6
libavcodec/mpegaudiodec_template.c
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@ -174,10 +174,10 @@ static void init_long_region(MPADecodeContext *s, GranuleDef *g,
int ra1, int ra2)
{
int l;
g->region_size[0] = band_index_long[s->sample_rate_index][ra1 + 1] >> 1;
g->region_size[0] = band_index_long[s->sample_rate_index][ra1 + 1];
/* should not overflow */
l = FFMIN(ra1 + ra2 + 2, 22);
g->region_size[1] = band_index_long[s->sample_rate_index][ l] >> 1;
g->region_size[1] = band_index_long[s->sample_rate_index][ l];
}
static void compute_band_indexes(MPADecodeContext *s, GranuleDef *g)
@ -327,7 +327,7 @@ static av_cold void decode_init_static(void)
k = 0;
for (j = 0; j < 22; j++) {
band_index_long[i][j] = k;
k += band_size_long[i][j];
k += band_size_long[i][j] >> 1;
}
band_index_long[i][22] = k;
}