[Libvisual-devel] New input plugin: mplayer

[Gustavo S. B. <gu...@gs...>]

Hello,

I've commited a new input plugin: mplayer. It can use data exported by mplayer 
audio filter "export" (mplayer -af export).

After 3 commits (sorry! I'm really distracted today) it's stable.

I also did small changes to esd and alsa. The focus was to ensure pointers 
were not null and to use visual_log() instead of fprintf().

Any comments?

PS: There is a way to get input plugin parameters? I'll need that.



Here is the first revision with a bit more explanation:

revision 1.1
date: 2004/07/12 23:51:12;  author: gsbarbieri;  state: Exp;
Added mplayer input plugin.

Background:
        Mplayer has an export filter which export it's buffer to a file
        using mmap().

TODO:
        * Implement option to change shared file. Current implementation
          uses default mplayer value (~/.mplayer/mplayer-af_export)
        * Support different number of channels (current is fixed to 2),
          different buffer size (current is 512 samples) and different
          format (current is 16bits signed).

BUGS:
        * Some mplayer audio output system changes the rate mplayer calls
          its export filter, leading to low update rate. Know problematic
          output system: esd. Know to work right: alsa, oss. This is not
          a big issue since you can use libvisual own esd input plugin and
          get it right. NOTE: This is a mplayer bug.
=============================================================================


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Gustavo Sverzut Barbieri
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