[FFmpeg-devel] [PATCH] Add detail to the documentation for ffmpeg -map.

Diego Biurrun diego
Sat Mar 12 00:57:08 CET 2011


I'm travelling, sorry for the delay...

On Wed, Mar 02, 2011 at 04:15:21PM +0100, Stefano Sabatini wrote:
> 
> --- a/doc/ffmpeg.texi
> +++ b/doc/ffmpeg.texi
> @@ -622,11 +622,43 @@ Synchronize read on input.
>  
> +For example, if you have two audio streams in the first input file,
> +these streams are identified by "0.0" and "0.1". You can use
> + at code{-map} to select which stream to place in an output file. For
> +example:
> + at example
> +ffmpeg -i INPUT out.wav -map 0.1
> + at end example
> +will map the input stream in @file{INPUT} identified by "0.1" to
> +the (single) output stream in @file{out.wav}.
> +
> +For example, to select stream with index 2 from input file

the stream

> + at file{A.mov} (specified by the identifier "0.2"), and stream with
> +index 6 from input @file{B.mov} (specified by the identifier "1.6"),
> +and copy them to output file @file{out.mov}:
> + at example
> +ffmpeg -i A.mov -i B.mov -vcodec copy -acodec copy out.mov -map 0.2 -map 1.6
> + at end example

I dislike capitalized filenames, but this is a minor issue.

Patch OK, preferably with those changes.

Diego



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