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| author | Michael Graczyk <mgraczyk@google.com> | 2016-06-14 18:33:15 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-07-02 23:31:16 +0200 |
| commit | 37941878f193a2316c514bd5ba55bfe9d2dfdfcf (patch) | |
| tree | c29097b85dc064a31b8ffc7f589597dfa26c57ff /doc/encoders.texi | |
| parent | a1e3c7cf0fd982d4d82146c4cbe78f6255ae9ca2 (diff) | |
| download | ffmpeg-37941878f193a2316c514bd5ba55bfe9d2dfdfcf.tar.gz | |
libopusenc: Add channel mapping family argument
The default value of -1 indicates that ffmpeg should determine the channel
mapping automatically, which was the behavior before this commit.
Unless the -mapping_family argument is provided, behavior is unchanged.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'doc/encoders.texi')
| -rw-r--r-- | doc/encoders.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index f38cad3e23..d0caa77ee3 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -1184,6 +1184,17 @@ following: 4000, 6000, 8000, 12000, or 20000, corresponding to narrowband, mediumband, wideband, super wideband, and fullband respectively. The default is 0 (cutoff disabled). +@item mapping_family (@emph{mapping_family}) +Set channel mapping family to be used by the encoder. The default value of -1 +uses mapping family 0 for mono and stereo inputs, and mapping family 1 +otherwise. The default also disables the surround masking and LFE bandwidth +optimzations in libopus, and requires that the input contains 8 channels or +fewer. + +Other values include 0 for mono and stereo, 1 for surround sound with masking +and LFE bandwidth optimizations, and 255 for independent streams with an +unspecified channel layout. + @end table @section libvorbis |