diff options
Diffstat (limited to 'libavcodec/mpegaudiodec_fixed.c')
| -rw-r--r-- | libavcodec/mpegaudiodec_fixed.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/libavcodec/mpegaudiodec_fixed.c b/libavcodec/mpegaudiodec_fixed.c index 6fe372b38f..a3c8ddc21e 100644 --- a/libavcodec/mpegaudiodec_fixed.c +++ b/libavcodec/mpegaudiodec_fixed.c @@ -36,6 +36,26 @@ #define OUT_FMT AV_SAMPLE_FMT_S16 #define OUT_FMT_P AV_SAMPLE_FMT_S16P +/* Intensity stereo table. See commit b91d46614df189e7905538e7f5c4ed9c7ed0d274 + * (float based mp1/mp2/mp3 decoders.) for how they were created. */ +static const int32_t is_table[2][16] = { + { 0x000000, 0x1B0CB1, 0x2ED9EC, 0x400000, 0x512614, 0x64F34F, 0x800000 }, + { 0x800000, 0x64F34F, 0x512614, 0x400000, 0x2ED9EC, 0x1B0CB1, 0x000000 } +}; + +/* Antialiasing table. See commit ce4a29c066cddfc180979ed86396812f24337985 + * (optimize antialias) for how they were created. */ +static const int32_t csa_table[8][4] = { + { 0x36E129F8, 0xDF128056, 0x15F3AA4E, 0xA831565E }, + { 0x386E75F2, 0xE1CF24A5, 0x1A3D9A97, 0xA960AEB3 }, + { 0x3CC6B73A, 0xEBF19FA6, 0x28B856E0, 0xAF2AE86C }, + { 0x3EEEA054, 0xF45B88BC, 0x334A2910, 0xB56CE868 }, + { 0x3FB6905C, 0xF9F27F18, 0x39A90F74, 0xBA3BEEBC }, + { 0x3FF23F20, 0xFD60D1E4, 0x3D531104, 0xBD6E92C4 }, + { 0x3FFE5932, 0xFF175EE4, 0x3F15B816, 0xBF1905B2 }, + { 0x3FFFE34A, 0xFFC3612F, 0x3FC34479, 0xBFC37DE5 } +}; + #include "mpegaudiodec_template.c" #if CONFIG_MP1_DECODER |