[FFmpeg-devel] [PATCH] Add documentation for the framecrc muxer.

Stefano Sabatini stefano.sabatini-lala
Thu Feb 3 00:56:48 CET 2011


On date Wednesday 2011-02-02 23:00:15 +0100, Diego Biurrun encoded:
> On Tue, Feb 01, 2011 at 11:42:43AM +0100, Stefano Sabatini wrote:
> > 
> > Updated.
> > 
> > --- a/doc/muxers.texi
> > +++ b/doc/muxers.texi
> > @@ -51,6 +52,46 @@ and the input video converted to MPEG-2 video, use the command:
> >  
> > + at anchor{framecrc}
> > + at section framecrc
> > +
> > +Per-frame CRC (Cyclic Redundancy Check) testing format.
> > +
> > +This muxer computes and prints the Adler-32 CRC for each decoded audio
> > +and video frame. By default the CRC is computed on the input audio and
> > +video frames converted respectively to rawvideo and signed 16-bit
> > +rawaudio.
> 
> See my comment about the CRC muxer docs.
> 
> > +The output of the muxer consists of a line for each audio and video
> > +frame of the form: @var{stream_index}, @var{frame_dts},
> > + at var{frame_size}, 0x at var{CRC}, where @var{CRC} is an hexadecimal
> 
> s/an/a/
> 
> > +You can print the CRC of each decoded frame to stdout with the command
> > +(using the @file{sh} shell syntax):
> > + at example
> > +ffmpeg -i INPUT -f framecrc -
> > + at end example
> 
> See the other review.
> 
> > +You can select the output format of each frame with @file{ffmpeg} by
> > +specifying the audio and video codec and format. For example to
> 
> For example,

Fixed+updated.
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