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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-05-23 17:45:51 +0200 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2011-05-24 07:52:31 +0200 |
| commit | 7f3a7b5c40b7fda09cbba4bb53e1ced133970930 (patch) | |
| tree | 7da170e37b9398fa5228d68daa119255f9184226 /libavcodec/ac3enc_fixed.c | |
| parent | a7a187a1beb8551101b592bf85f0f31a0db22f61 (diff) | |
| download | ffmpeg-7f3a7b5c40b7fda09cbba4bb53e1ced133970930.tar.gz | |
ac3enc: add channel coupling support
Channel coupling is an optional AC-3 feature that increases quality by
combining high frequency information from multiple channels into a
single channel. The per-channel high frequency information is sent with
less accuracy in both the frequency and time domains. This allows more
bits to be used for lower frequencies while preserving enough
information to reconstruct the high frequencies.
Diffstat (limited to 'libavcodec/ac3enc_fixed.c')
| -rw-r--r-- | libavcodec/ac3enc_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ac3enc_fixed.c b/libavcodec/ac3enc_fixed.c index 800ef8f92c..035ebb3de9 100644 --- a/libavcodec/ac3enc_fixed.c +++ b/libavcodec/ac3enc_fixed.c @@ -101,7 +101,7 @@ static void scale_coefficients(AC3EncodeContext *s) for (blk = 0; blk < AC3_MAX_BLOCKS; blk++) { AC3Block *block = &s->blocks[blk]; - for (ch = 0; ch < s->channels; ch++) { + for (ch = 1; ch <= s->channels; ch++) { s->ac3dsp.ac3_rshift_int32(block->mdct_coef[ch], AC3_MAX_COEFS, block->coeff_shift[ch]); } |