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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2012-03-10 14:28:08 -0800 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-03-10 14:28:08 -0800 |
| commit | d7eabd50425a61b31e90c763a0c3e4316a725404 (patch) | |
| tree | 7d19e9dd612725c7207c88fcf035d929bab236ee /libavcodec/mpcdata.h | |
| parent | 442c3a8cb1785d74f8e2d7ab35b1862b7088436b (diff) | |
| download | ffmpeg-d7eabd50425a61b31e90c763a0c3e4316a725404.tar.gz | |
mpc: pad mpc_CC/SCF[] tables to allow for negative indices.
MPC8 allows indices of mpc_CC up to -1, and mpc_SCF up to -6, thus pad
the tables by that much on the left end.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec/mpcdata.h')
| -rw-r--r-- | libavcodec/mpcdata.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libavcodec/mpcdata.h b/libavcodec/mpcdata.h index 397dad59d8..15724f3b74 100644 --- a/libavcodec/mpcdata.h +++ b/libavcodec/mpcdata.h @@ -22,13 +22,17 @@ #ifndef AVCODEC_MPCDATA_H #define AVCODEC_MPCDATA_H -static const float mpc_CC[18] = { - 65536.0000, 21845.3333, 13107.2000, 9362.2857, 7281.7778, 4369.0667, 2114.0645, +static const float mpc_CC[18+1] = { + 111.285962475327f, // 32768/2/255*sqrt(3) + 65536.0000 /* this value is never used */, + 21845.3333, 13107.2000, 9362.2857, 7281.7778, 4369.0667, 2114.0645, 1040.2539, 516.0315, 257.0039, 128.2505, 64.0626, 32.0156, 16.0039, 8.0010, 4.0002, 2.0001, 1.0000 }; -static const float mpc_SCF[128] = { +static const float mpc_SCF[128+6] = { + 920.016296386718750000, 766.355773925781250000, 638.359558105468750000, + 531.741149902343750000, 442.930114746093750000, 368.952209472656250000, 307.330047607421875000, 255.999984741210937500, 213.243041992187500000, 177.627334594726562500, 147.960128784179687500, 123.247924804687500000, 102.663139343261718750, 85.516410827636718750, 71.233520507812500000, 59.336143493652343750, 49.425861358642578125, 41.170787811279296875, |