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| author | Mark Thompson <sw@jkqxz.net> | 2019-02-10 19:46:54 +0000 |
|---|---|---|
| committer | Mark Thompson <sw@jkqxz.net> | 2019-02-25 23:32:23 +0000 |
| commit | f4d7bd6cdbcf9027a36a73531baf7e3885644ee6 (patch) | |
| tree | 3345e9cd8c8c8ee195d5a3179620be1e1cbbe90a /doc/encoders.texi | |
| parent | 9d5ca71ec2efddfa0d30ae88db66fd0bd3f1f33b (diff) | |
vaapi_encode: Support more RC modes
Allow setting the mode explicitly, and try to make a sensible choice
given the available parameters if not.
Diffstat (limited to 'doc/encoders.texi')
| -rw-r--r-- | doc/encoders.texi | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index e86ae69cc5..29625ba07c 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -2824,6 +2824,30 @@ Set the B-frame reference depth. When set to one (the default), all B-frames will refer only to P- or I-frames. When set to greater values multiple layers of B-frames will be present, frames in each layer only referring to frames in higher layers. + +@item rc_mode +Set the rate control mode to use. A given driver may only support a subset of +modes. + +Possible modes: +@table @option +@item auto +Choose the mode automatically based on driver support and the other options. +This is the default. +@item CQP +Constant-quality. +@item CBR +Constant-bitrate. +@item VBR +Variable-bitrate. +@item ICQ +Intelligent constant-quality. +@item QVBR +Quality-defined variable-bitrate. +@item AVBR +Average variable bitrate. +@end table + @end table Each encoder also has its own specific options: |