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author | Timothy Gu <timothygu99@gmail.com> | 2013-07-29 19:12:10 -0700 |
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committer | Stefano Sabatini <stefasab@gmail.com> | 2013-07-30 16:24:29 +0200 |
commit | 6b255e5e70c72aa59ff7aed74b4ee976223eb140 (patch) | |
tree | 3d78d9f3db94d517d935442d0cf6db81d77d3311 | |
parent | d6686149e2d72655d57c45ac18dee3b820897a5c (diff) | |
download | ffmpeg-6b255e5e70c72aa59ff7aed74b4ee976223eb140.tar.gz |
doc/encoders: add libxvid doc
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
-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 fdf054c071..16be9483f2 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -1212,6 +1212,119 @@ no-fast-pskip=1:subq=6:8x8dct=0:trellis=0 OUTPUT Encoding ffpresets for common usages are provided so they can be used with the general presets system (e.g. passing the @option{pre} option). +@section libxvid + +Xvid MPEG-4 Part 2 encoder wrapper. + +This encoder requires the presence of the libxvidcore headers and library +during configuration. You need to explicitly configure the build with +@code{--enable-libxvid --enable-gpl}. + +The native @code{mpeg4} encoder supports the MPEG-4 Part 2 format, so +users can encode to this format without this library. + +@subsection Options + +The following options are supported by the libxvid wrapper. Some of +the following options are listed but are not documented, and +correspond to shared codec options. See @ref{codec-options,,the Codec +Options chapter} for their documentation. The other shared options +which are not listed have no effect for the libxvid encoder. + +@table @option +@item b + +@item g + +@item qmin + +@item qmax + +@item mpeg_quant + +@item threads + +@item bf + +@item b_qfactor + +@item b_qoffset + +@item flags +Set specific encoding flags. Possible values: + +@table @samp + +@item mv4 +Use four motion vector by macroblock. + +@item aic +Enable high quality AC prediction. + +@item gray +Only encode grayscale. + +@item gmc +Enable the use of global motion compensation (GMC). + +@item qpel +Enable quarter-pixel motion compensation. + +@item cgop +Enable closed GOP. + +@item global_header +Place global headers in extradata instead of every keyframe. + +@end table + +@item trellis + +@item me_method +Set motion estimation method. Possible values in decreasing order of +speed and increasing order of quality: + +@table @samp +@item zero +Use no motion estimation (default). + +@item phods +@item x1 +@item log +Enable advanced diamond zonal search for 16x16 blocks and half-pixel +refinement for 16x16 blocks. @samp{x1} and @samp{log} are aliases for +@samp{phods}. + +@item epzs +Enable all of the things described above, plus advanced diamond zonal +search for 8x8 blocks, half-pixel refinement for 8x8 blocks, and motion +estimation on chroma planes. + +@item full +Enable all of the things described above, plus extended 16x16 and 8x8 +blocks search. +@end table + +@item mbd +Set macroblock decision algorithm. Possible values in the increasing +order of quality: + +@table @samp +@item simple +Use macroblock comparing function algorithm (default). + +@item bits +Enable rate distortion-based half pixel and quarter pixel refinement for +16x16 blocks. + +@item rd +Enable all of the things described above, plus rate distortion-based +half pixel and quarter pixel refinement for 8x8 blocks, and rate +distortion-based search using square pattern. +@end table + +@end table + @section png PNG image encoder. |