[FFmpeg-cvslog] doc/encoders: Add doc for av1_qsv

[Wenbin Chen]

ffmpeg | branch: master | Wenbin Chen <wenbin.chen at intel.com> | Thu Oct 13 16:25:24 2022 +0800| [d79c240196f43b93bd204363f1facc270029f113] | committer: Haihao Xiang

doc/encoders: Add doc for av1_qsv

Add doc for av1_qsv.

Signed-off-by: Wenbin Chen <wenbin.chen at intel.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d79c240196f43b93bd204363f1facc270029f113
---

 doc/encoders.texi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/doc/encoders.texi b/doc/encoders.texi
index 1a5216f8eb..53dd02fd28 100644
--- a/doc/encoders.texi
+++ b/doc/encoders.texi
@@ -3775,6 +3775,38 @@ Number of columns for tiled encoding (requires libmfx >= 1.29).
 Number of rows for tiled encoding (requires libmfx  >= 1.29).
 @end table
 
+ at subsection AV1 Options
+These options are used by av1_qsv (requires libvpl).
+ at table @option
+ at item @var{profile}
+ at table @samp
+ at item unknown
+ at item main
+ at end table
+
+ at item @var{tile_cols}
+Number of columns for tiled encoding.
+
+ at item @var{tile_rows}
+Number of rows for tiled encoding.
+
+ at item @var{adaptive_i}
+This flag controls insertion of I frames by the QSV encoder. Turn ON this flag
+to allow changing of frame type from P and B to I.
+
+ at item @var{adaptive_b}
+This flag controls changing of frame type from B to P.
+
+ at item @var{b_strategy}
+This option controls usage of B frames as reference.
+
+ at item @var{extbrc}
+Extended bitrate control.
+
+ at item @var{look_ahead_depth}
+Depth of look ahead in number frames, available when extbrc option is enabled.
+ at end table
+
 @section snow
 
 @subsection Options