diff options
Diffstat (limited to 'src/output_internal.h')
| -rw-r--r-- | src/output_internal.h | 95 |
1 files changed, 83 insertions, 12 deletions
diff --git a/src/output_internal.h b/src/output_internal.h index 72596c1c3..9e4d1f25d 100644 --- a/src/output_internal.h +++ b/src/output_internal.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2009 The Music Player Daemon Project + * Copyright (C) 2003-2010 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify @@ -21,16 +21,33 @@ #define MPD_OUTPUT_INTERNAL_H #include "audio_format.h" -#include "pcm_convert.h" -#include "notify.h" +#include "pcm_buffer.h" + +#include <glib.h> #include <time.h> enum audio_output_command { AO_COMMAND_NONE = 0, + AO_COMMAND_ENABLE, + AO_COMMAND_DISABLE, AO_COMMAND_OPEN, + + /** + * This command is invoked when the input audio format + * changes. + */ + AO_COMMAND_REOPEN, + AO_COMMAND_CLOSE, AO_COMMAND_PAUSE, + + /** + * Drains the internal (hardware) buffers of the device. This + * operation may take a while to complete. + */ + AO_COMMAND_DRAIN, + AO_COMMAND_CANCEL, AO_COMMAND_KILL }; @@ -60,10 +77,10 @@ struct audio_output { struct mixer *mixer; /** - * This flag is true, when the audio_format of this device is - * configured in mpd.conf. + * Shall this output always play something (i.e. silence), + * even when playback is stopped? */ - bool config_audio_format; + bool always_on; /** * Has the user enabled this device? @@ -71,6 +88,12 @@ struct audio_output { bool enabled; /** + * Is this device actually enabled, i.e. the "enable" method + * has succeeded? + */ + bool really_enabled; + + /** * Is the device (already) open and functional? * * This attribute may only be modified by the output thread. @@ -94,6 +117,11 @@ struct audio_output { GTimer *fail_timer; /** + * The configured audio format. + */ + struct audio_format config_audio_format; + + /** * The audio_format in which audio data is received from the * player thread (which in turn receives it from the decoder). */ @@ -107,18 +135,55 @@ struct audio_output { */ struct audio_format out_audio_format; - struct pcm_convert_state convert_state; + /** + * The buffer used to allocate the cross-fading result. + */ + struct pcm_buffer cross_fade_buffer; /** - * The thread handle, or NULL if the output thread isn't - * running. + * The filter object of this audio output. This is an + * instance of chain_filter_plugin. */ - GThread *thread; + struct filter *filter; /** - * Notify object for the thread. + * The replay_gain_filter_plugin instance of this audio + * output. */ - struct notify notify; + struct filter *replay_gain_filter; + + /** + * The serial number of the last replay gain info. 0 means no + * replay gain info was available. + */ + unsigned replay_gain_serial; + + /** + * The replay_gain_filter_plugin instance of this audio + * output, to be applied to the second chunk during + * cross-fading. + */ + struct filter *other_replay_gain_filter; + + /** + * The serial number of the last replay gain info by the + * "other" chunk during cross-fading. + */ + unsigned other_replay_gain_serial; + + /** + * The convert_filter_plugin instance of this audio output. + * It is the last item in the filter chain, and is responsible + * for converting the input data into the appropriate format + * for this audio output. + */ + struct filter *convert_filter; + + /** + * The thread handle, or NULL if the output thread isn't + * running. + */ + GThread *thread; /** * The next command to be performed by the output thread. @@ -136,6 +201,12 @@ struct audio_output { GMutex *mutex; /** + * This condition object wakes up the output thread after + * #command has been set. + */ + GCond *cond; + + /** * The #music_chunk which is currently being played. All * chunks before this one may be returned to the * #music_buffer, because they are not going to be used by |