Commit Graph

57 Commits

Author SHA1 Message Date
Max Kellermann
71351160b1 don't include os_compat.h
When there are standardized headers, use these instead of the bloated
os_compat.h.
2008-10-08 10:49:29 +02:00
Max Kellermann
6e21e24cae audio_output: added method pause()
pause() puts the audio output into pause mode: if supported, it may
perform a special action, which keeps the device open, but does not
play anything.  Output plugins like "shout" might want to play silence
during pause, so their clients won't be disconnected.  Plugins which
do not support pausing will simply be closed, and have to be reopened
when unpaused.

This pach includes an implementation for the shout plugin, which
sends silence chunks.
2008-09-29 16:43:55 +02:00
Max Kellermann
58554e14f9 notify: protect notify->pending with the mutex
There was a known deadlocking bug in the notify library: when the
other thread set notify->pending after the according check in
notify_wait(), the latter thread was deadlocked.  Resolve this by
synchronizing all accesses to notify->pending with the notify object's
mutex.  Since notify_signal_sync() was never used, we can remove it.
As a consequence, we don't need notify_enter() and notify_leave()
anymore; eliminate them, too.
2008-09-26 09:57:11 +02:00
Max Kellermann
acc4a0ba2d output: make "struct audio_output" opaque for output plugins
We have eliminated direct accesses to the audio_output struct from
the all output plugins.  Make it opaque for them, and move its real
declaration to output_internal.h, similar to decoder_internal.h.

Pass the opaque structure to plugin.init() only, which will return the
plugin's data pointer on success, and NULL on failure.  This data
pointer will be passed to all other methods instead of the
audio_output struct.
2008-09-24 07:20:55 +02:00
Max Kellermann
2403d32a50 output: set audio_output->open=1 in audio_output_task()
Since the output plugin returns a value indicating success or error,
we can have the output core code assign the "open" flag.
2008-09-24 07:20:36 +02:00
Max Kellermann
3cae6856b8 output: pass audio_format to plugin.init() and plugin.open()
Pass the globally configured audio_format as a const pointer to
plugin.init().  plugin.open() gets a writable pointer which contains
the audio_format requested by the plugin.  Its initial value is either
the configured audio_format or the input file's audio_format.
2008-09-24 07:20:36 +02:00
Max Kellermann
d32f49a90b output: one thread per audio output
To keep I/O nastiness and latencies away from the core, move the audio
output code to a separate thread, one per output.  The thread is
created on demand, and currently runs until mpd exits.
2008-09-24 07:20:26 +02:00