diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/ffmpeg-doc.texi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi index ec5e784176..b87fd3ac0c 100644 --- a/doc/ffmpeg-doc.texi +++ b/doc/ffmpeg-doc.texi @@ -385,7 +385,12 @@ blue (default = 000000 (black)). @item -vn Disable video recording. @item -bt @var{tolerance} -Set video bitrate tolerance (in bit/s). +Set video bitrate tolerance (in bits, default 4000k). +Has a minimum value of: (target_bitrate/target_framerate). +In 1-pass mode, bitrate tolerance specifies how far ratecontrol is +willing to deviate from the target average bitrate value. This is +not related to min/max bitrate. Lowering tolerance too much has +an adverse effect on quality. @item -maxrate @var{bitrate} Set max video bitrate (in bit/s). Requires -bufsize to be set. |