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

Diego Biurrun diego
Wed Feb 2 23:00:15 CET 2011

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


> +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,


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