diff options
author | James Zern <jzern@google.com> | 2011-05-31 13:48:49 -0700 |
---|---|---|
committer | Michael Niedermayer <michaelni@gmx.at> | 2011-05-31 22:58:31 +0200 |
commit | 0abbd3adb6a28c088e121bf3da6c04225398bee4 (patch) | |
tree | 49fa22d4eb00be7cf75352ccf10647126320371c /doc/encoders.texi | |
parent | 84fb4e9df737c856cca7767016110fc74bee56cb (diff) | |
download | ffmpeg-0abbd3adb6a28c088e121bf3da6c04225398bee4.tar.gz |
doc: add libvpx encoder section
Documents the mapping from FFmpeg options to libvpx.
Diffstat (limited to 'doc/encoders.texi')
-rw-r--r-- | doc/encoders.texi | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/doc/encoders.texi b/doc/encoders.texi index f21f8ffd82..7913ffe7c3 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -420,6 +420,119 @@ Selected by Encoder (default) A description of some of the currently available video encoders follows. +@section libvpx + +VP8 format supported through libvpx. + +Requires the presence of the libvpx headers and library during configuration. +You need to explicitly configure the build with @code{--enable-libvpx}. + +@subsection Options + +Mapping from FFmpeg to libvpx options with conversion notes in parentheses. + +@table @option + +@item threads +g_threads + +@item profile +g_profile + +@item vb +rc_target_bitrate + +@item g +kf_max_dist + +@item keyint_min +kf_min_dist + +@item qmin +rc_min_quantizer + +@item qmax +rc_max_quantizer + +@item bufsize, vb +rc_buf_sz +@code{(bufsize * 1000 / vb)} + +rc_buf_optimal_sz +@code{(bufsize * 1000 / vb * 5 / 6)} + +@item rc_init_occupancy, vb +rc_buf_initial_sz +@code{(rc_init_occupancy * 1000 / vb)} + +@item rc_buffer_aggressivity +rc_undershoot_pct + +@item skip_threshold +rc_dropframe_thresh + +@item qcomp +rc_2pass_vbr_bias_pct + +@item maxrate, vb +rc_2pass_vbr_maxsection_pct +@code{(maxrate * 100 / vb)} + +@item minrate, vb +rc_2pass_vbr_minsection_pct +@code{(minrate * 100 / vb)} + +@item minrate, maxrate, vb +@code{VPX_CBR} +@code{(minrate == maxrate == vb)} + +@item crf +@code{VPX_CQ}, @code{VP8E_SET_CQ_LEVEL} + +@item quality +@table @option +@item @var{best} +@code{VPX_DL_BEST_QUALITY} +@item @var{good} +@code{VPX_DL_GOOD_QUALITY} +@item @var{realtime} +@code{VPX_DL_REALTIME} +@end table + +@item speed +@code{VP8E_SET_CPUUSED} + +@item nr +@code{VP8E_SET_NOISE_SENSITIVITY} + +@item mb_threshold +@code{VP8E_SET_STATIC_THRESHOLD} + +@item slices +@code{VP8E_SET_TOKEN_PARTITIONS} + +@item Alternate reference frame related +@table @option +@item vp8flags altref +@code{VP8E_SET_ENABLEAUTOALTREF} +@item @var{arnr_max_frames} +@code{VP8E_SET_ARNR_MAXFRAMES} +@item @var{arnr_type} +@code{VP8E_SET_ARNR_TYPE} +@item @var{arnr_strength} +@code{VP8E_SET_ARNR_STRENGTH} +@item @var{rc_lookahead} +g_lag_in_frames +@end table + +@item vp8flags error_resilient +g_error_resilient + +@end table + +For more information about libvpx see: +@url{http://www.webmproject.org/} + @section libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 format supported through |