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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-01-08 23:21:17 +0000 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-01-08 23:21:17 +0000 |
| commit | dc7e07ac1f015117a3abaa9c5f3a594cc7fd0b7a (patch) | |
| tree | ddbd5861f46a4a12808c7c9fe6f846faa8dc7b01 /libavcodec/ac3tab.c | |
| parent | d267b339e4dbf8d70455e3163b2d39aff0efe314 (diff) | |
| download | ffmpeg-dc7e07ac1f015117a3abaa9c5f3a594cc7fd0b7a.tar.gz | |
Add stereo rematrixing support to the AC-3 encoders.
This improves the audio quality significantly for stereo source with both the
fixed-point and floating-point AC-3 encoders.
Update acodec-ac3_fixed and seek-ac3_rm test references.
Originally committed as revision 26271 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ac3tab.c')
| -rw-r--r-- | libavcodec/ac3tab.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/ac3tab.c b/libavcodec/ac3tab.c index 79f628fbd9..4fc0824a46 100644 --- a/libavcodec/ac3tab.c +++ b/libavcodec/ac3tab.c @@ -132,6 +132,12 @@ const uint16_t ff_ac3_bitrate_tab[19] = { 160, 192, 224, 256, 320, 384, 448, 512, 576, 640 }; +/** + * Table of bin locations for rematrixing bands + * reference: Section 7.5.2 Rematrixing : Frequency Band Definitions + */ +const uint8_t ff_ac3_rematrix_band_tab[5] = { 13, 25, 37, 61, 253 }; + /* AC-3 MDCT window */ /* MDCT window */ |