[FFmpeg-cvslog] avcodec/adpcm_ima_cunning: document origin of tables

[Zane van Iperen]

ffmpeg | branch: master | Zane van Iperen <zane at zanevaniperen.com> | Sat Oct 24 15:47:55 2020 +1000| [7fc97fb7f4f3a4dc235248e5c6ca3831e911f87a] | committer: Zane van Iperen

avcodec/adpcm_ima_cunning: document origin of tables

Signed-off-by: Zane van Iperen <zane at zanevaniperen.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7fc97fb7f4f3a4dc235248e5c6ca3831e911f87a
---

 libavcodec/adpcm_data.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

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,