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| author | Zane van Iperen <zane@zanevaniperen.com> | 2020-10-24 15:47:55 +1000 |
|---|---|---|
| committer | Zane van Iperen <zane@zanevaniperen.com> | 2020-10-26 12:25:28 +1000 |
| commit | 7fc97fb7f4f3a4dc235248e5c6ca3831e911f87a (patch) | |
| tree | 906f731ad8a6853fb0d42002a322f95e6ef93733 /libavcodec/adpcm_data.c | |
| parent | 7b0d1791956c9a7632370d76d0def9a05dc87c85 (diff) | |
| download | ffmpeg-7fc97fb7f4f3a4dc235248e5c6ca3831e911f87a.tar.gz | |
avcodec/adpcm_ima_cunning: document origin of tables
Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
Diffstat (limited to 'libavcodec/adpcm_data.c')
| -rw-r--r-- | libavcodec/adpcm_data.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/adpcm_data.c b/libavcodec/adpcm_data.c index e34e04d5e9..768a18a378 100644 --- a/libavcodec/adpcm_data.c +++ b/libavcodec/adpcm_data.c @@ -178,10 +178,22 @@ const int16_t ff_adpcm_mtaf_stepsize[32][16] = { -424, -1273, -2121, -2970, -3819, -4668, -5516, -6365, }, }; +/* + * Dumped from the binaries: + * - FantasticJourney.exe - 0x794D2, DGROUP:0x47A4D2 + * - BigRaceUSA.exe - 0x9B8AA, DGROUP:0x49C4AA + * - Timeshock!.exe - 0x8506A, DGROUP:0x485C6A + */ const int8_t ff_adpcm_ima_cunning_index_table[9] = { -1, -1, -1, -1, 1, 2, 3, 4, -1 }; +/* + * Dumped from the binaries: + * - FantasticJourney.exe - 0x79458, DGROUP:0x47A458 + * - BigRaceUSA.exe - 0x9B830, DGROUP:0x49C430 + * - Timeshock!.exe - 0x84FF0, DGROUP:0x485BF0 + */ const int16_t ff_adpcm_ima_cunning_step_table[61] = { 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, |