[FFmpeg-devel] [PATCH 2/2] faq: suggest the concat filter.

[Stefano Sabatini]

On date Monday 2012-07-23 15:04:58 +0200, Nicolas George encoded:
> 
> Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
> ---
>  doc/faq.texi |   11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> 
> The page on the website does not yet have the section on the concat filter;
> I assume it is handled by a crontab sometime in the night.
> 
> 
> diff --git a/doc/faq.texi b/doc/faq.texi
> index 93ba105..cc3a7f0 100644
> --- a/doc/faq.texi
> +++ b/doc/faq.texi
> @@ -251,6 +251,15 @@ the other; it can be done using the
>  @anchor{How can I concatenate video files}
>  @section How can I concatenate video files?
>  
> +There are several solutions, depending on the exact circumstances.
> +
> + at subsection Concatenating using filters
> +

> +FFmpeg has a @url{http://ffmpeg.org/ffmpeg.html#concat-1, @code{concat}}

I believe it is better to use an xref, so you don't depend on the
internal URL which may change depending on texi2html.

> +filter designed specifically for that, with examples in the documentation.
> +
> + at subsection Concatenating at the file level
> +
>  A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
>  video by merely concatenating the files them.
>  
> @@ -290,6 +299,8 @@ cat intermediate1.mpg intermediate2.mpg |\
>  ffmpeg -f mpeg -i - -qscale:v 2 -c:v mpeg4 -acodec libmp3lame -q:a 4 output.avi
>  @end example
>  
> + at subsection Concatenating using raw audio and video
> +
>  Similarly, the yuv4mpegpipe format, and the raw video, raw audio codecs also
>  allow concatenation, and the transcoding step is almost lossless.
>  When using multiple yuv4mpegpipe(s), the first line needs to be discarded

Looks good otherwise, thanks.
-- 
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