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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2008-08-25 00:15:29 +0000 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2008-08-25 00:15:29 +0000 |
| commit | ffc2b3412c8e18edf8f57e0469099b9817f1ab54 (patch) | |
| tree | e200ccccced4d4e15849773c075816aa8e6598b7 /libavcodec/ac3dec_data.c | |
| parent | 8bc98ba92b5c3df4180bc09393a6e3517467fe76 (diff) | |
| download | ffmpeg-ffc2b3412c8e18edf8f57e0469099b9817f1ab54.tar.gz | |
right shift the values by 8 in GAQ remap "B" table. data now fits in int8_t.
Originally committed as revision 14958 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ac3dec_data.c')
| -rw-r--r-- | libavcodec/ac3dec_data.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/libavcodec/ac3dec_data.c b/libavcodec/ac3dec_data.c index a04bbc0c53..bb688bc1bf 100644 --- a/libavcodec/ac3dec_data.c +++ b/libavcodec/ac3dec_data.c @@ -87,18 +87,19 @@ const int16_t ff_eac3_gaq_remap_2_4_a[9][2] = { /** * Table E3.6, Gk=2 & Gk=4, B * Large mantissa inverse quantization, negative mantissa remapping offsets + * Table values from the spec are right-shifted by 8 to simplify calculations. * ff_eac3_gaq_remap_3_4_b[hebap-8][Gk=2,4] */ -const int16_t ff_eac3_gaq_remap_2_4_b[9][2] = { - { -5461, -1170}, - { -11703, -4915}, - { -14199, -6606}, - { -15327, -7412}, - { -15864, -7805}, - { -16126, -7999}, - { -16255, -8096}, - { -16320, -8144}, - { -16352, -8168} +const int8_t ff_eac3_gaq_remap_2_4_b[9][2] = { + { -22, -5 }, + { -46, -20 }, + { -56, -26 }, + { -60, -29 }, + { -62, -31 }, + { -63, -32 }, + { -64, -32 }, + { -64, -32 }, + { -64, -32 }, }; static const int16_t vq_hebap1[4][6] = { |