--- a/ffmpeg.rst	Sun Jun 28 14:36:31 2020 +0300
+++ b/ffmpeg.rst	Sun Jun 28 14:49:46 2020 +0300
@@ -5,6 +5,18 @@
 .. contents::
    :local:
 
+Docs
+====
+
+https://ffmpeg.org/documentation.html
+  Docs index.
+http://ffmpeg.org/ffmpeg-all.html
+  Common options.
+https://ffmpeg.org/faq.html
+  FAQ.
+https://ffmpeg.org/ffmpeg.html
+  Syntax overview.
+
 Print supported options
 =======================
 
@@ -16,5 +28,29 @@
 
   ffmpeg -pix_fmts
 
+Limiting bit rate
+=================
 
+``-maxrate`` should be accompanied with ``-bufsize`` option like::
 
+  -maxrate 800k -bufsize 1200k
+
+otherwise you'll get warning:
+
+> VBV maxrate specified, but no bufsize, ignored
+
+``-b:v RATE`` allows to specify average bitrate for video.
+
+To specify video stream use syntax like::
+
+  -c:v:0 libx264 -b:v:0 2000k -maxrate:v:0 2200k -bufsize:v:0 3000k
+
+https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate
+  Limiting the output bitrate.
+https://trac.ffmpeg.org/wiki/EncodingForStreamingSites
+  Encoding for streaming sites.
+
+H.264
+=====
+
+https://trac.ffmpeg.org/wiki/Encode/H.264