[FFmpeg-devel] [PATCH 3/3] doc/muxers: add fifo_test

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Tue Mar 12 14:25:23 EET 2024


Stefano Sabatini:
> ---
>  doc/muxers.texi | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/doc/muxers.texi b/doc/muxers.texi
> index 0aaef2b520..ccbb741992 100644
> --- a/doc/muxers.texi
> +++ b/doc/muxers.texi
> @@ -1556,6 +1556,36 @@ ffmpeg -re -i ... -c:v libx264 -c:a aac -f fifo -fifo_format flv \
>    -map 0:v -map 0:a rtmp://example.com/live/stream_name
>  @end example
>  
> + at anchor{fifo_test}
> + at section fifo_test
> + at ref{fifo} muxer test muxer.
> +
> +This is a testing muxer, it is supposed to be used only to test the
> + at ref{fifo} muxer.
> +
> + at subsection Options
> + at table @option
> + at item print_deinit_summary @var{bool}
> +print summary when deinitializing muxer, default is @code{true}
> +
> + at item write_header_ret @var{int}
> +set @code{write_header()} return value
> +
> + at item write_trailer_ret @var{int}
> +set @code{write_trailer()} return value
> + at end table
> +
> + at subsection Example
> +
> +Use @command{ffmpeg} to write to a file using the @samp{fifo} muxer
> +using the internal @samp{fifo_test} muxer, simulate a write header
> +error using the @option{write_header_ret} option:
> + at example
> +ffmpeg -re -i ... -c:v libx264 -c:a aac -f fifo -fifo_format fifo_test -format_opts write_header_ret=-22 \
> +  -map 0:v -map 0:a \
> +  -drop_pkts_on_overflow 1 -attempt_recovery 1 -recovery_wait_time 1 out.test
> + at end example
> +
>  @section flv
>  
>  Adobe Flash Video Format muxer.

I do not think that this muxer should be publically documented. In fact,
I think it would be better if this muxer would only exist inside the
fifo_muxer test and if it were not included in a normal libavformat at all.

- Andreas



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