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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/mpc.c | |
| 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/mpc.c')
| -rw-r--r-- | libavcodec/mpc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/mpc.c b/libavcodec/mpc.c index 4573860525..6b15a33e5a 100644 --- a/libavcodec/mpc.c +++ b/libavcodec/mpc.c @@ -78,13 +78,13 @@ void ff_mpc_dequantize_and_synth(MPCContext * c, int maxband, void *data, int ch for(ch = 0; ch < 2; ch++){ if(bands[i].res[ch]){ j = 0; - mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][0]]; + mul = mpc_CC[bands[i].res[ch] + 1] * mpc_SCF[bands[i].scf_idx[ch][0]+6]; for(; j < 12; j++) c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off]; - mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][1]]; + mul = mpc_CC[bands[i].res[ch] + 1] * mpc_SCF[bands[i].scf_idx[ch][1]+6]; for(; j < 24; j++) c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off]; - mul = mpc_CC[bands[i].res[ch]] * mpc_SCF[bands[i].scf_idx[ch][2]]; + mul = mpc_CC[bands[i].res[ch] + 1] * mpc_SCF[bands[i].scf_idx[ch][2]+6]; for(; j < 36; j++) c->sb_samples[ch][j][i] = mul * c->Q[ch][j + off]; } |