diff options
| 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/ac3dec.h | |
| parent | a7a187a1beb8551101b592bf85f0f31a0db22f61 (diff) | |
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/ac3dec.h')
| -rw-r--r-- | libavcodec/ac3dec.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h index 6cba95b495..f0ab75ae98 100644 --- a/libavcodec/ac3dec.h +++ b/libavcodec/ac3dec.h @@ -58,11 +58,6 @@ #include "fft.h" #include "fmtconvert.h" -/* override ac3.h to include coupling channel */ -#undef AC3_MAX_CHANNELS -#define AC3_MAX_CHANNELS 7 -#define CPL_CH 0 - #define AC3_OUTPUT_LFEON 8 #define SPX_MAX_BANDS 17 |