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Diffstat (limited to 'DOCS/xml/en/audio.xml')
| -rw-r--r-- | DOCS/xml/en/audio.xml | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/DOCS/xml/en/audio.xml b/DOCS/xml/en/audio.xml index dd68bdca8e..d178f63452 100644 --- a/DOCS/xml/en/audio.xml +++ b/DOCS/xml/en/audio.xml @@ -942,6 +942,47 @@ would add surround sound decoding with 15ms delay for the sound to the rear speakers. </para> </sect4> + +<sect4 id="af_export"> +<title>Audio Exporter</title> +<para> +This audio filter exports the incoming signal to other processes using memory +mapping (<literal>mmap()</literal>). Memory mapped areas contain a header: + +<programlisting> +int nch /*number of channels*/ +int size /*buffer size*/ +unsigned long long counter /*Used to keep sync, it's updated + every time new data is exported.*/ +</programlisting> + +The rest is payload (non-interleaved) 16bit data. +</para> + +<variablelist> +<varlistentry> +<term><option>mmapped_file</option></term> +<listitem><para> +The file you want this filter to export to. The default is to map to +<filename>~/.mplayer/mplayer-af_export</filename>. +</para></listitem> +</varlistentry> + +<varlistentry> +<term><option>nsamples</option></term> +<listitem><para> +Number of samples per channel. The default is <literal>512</literal> samples. +</para></listitem> +</varlistentry> +</variablelist> + +<para> +Example: +<screen>mplayer -af export=/tmp/mplayer-af_export:1024 media.avi</screen> +would export 1024 samples per channel to <filename>/tmp/mplayer-af_export</filename>. +</para> +</sect4> + </sect3> <sect3 id="audio-plugins"> |