diff options
Diffstat (limited to 'libavcodec/ac3dec.c')
| -rw-r--r-- | libavcodec/ac3dec.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c index fac189b6b6..a95c2049b5 100644 --- a/libavcodec/ac3dec.c +++ b/libavcodec/ac3dec.c @@ -63,9 +63,11 @@ static const uint8_t quantization_tab[16] = { 5, 6, 7, 8, 9, 10, 11, 12, 14, 16 }; +#if (!USE_FIXED) /** dynamic range table. converts codes to scale factors. */ static float dynamic_range_tab[256]; -static float heavy_dynamic_range_tab[256]; +float ff_ac3_heavy_dynamic_range_tab[256]; +#endif /** Adjustments in dB gain */ static const float gain_levels[9] = { @@ -159,6 +161,7 @@ static av_cold void ac3_tables_init(void) b5_mantissas[i] = symmetric_dequant(i, 15); } +#if (!USE_FIXED) /* generate dynamic range table reference: Section 7.7.1 Dynamic Range Control */ for (i = 0; i < 256; i++) { @@ -170,9 +173,9 @@ static av_cold void ac3_tables_init(void) reference: Section 7.7.2 Heavy Compression */ for (i = 0; i < 256; i++) { int v = (i >> 4) - ((i >> 7) << 4) - 4; - heavy_dynamic_range_tab[i] = powf(2.0f, v) * ((i & 0xF) | 0x10); + ff_ac3_heavy_dynamic_range_tab[i] = powf(2.0f, v) * ((i & 0xF) | 0x10); } - +#endif } /** |