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-rw-r--r--src/output_control.c170
1 files changed, 138 insertions, 32 deletions
diff --git a/src/output_control.c b/src/output_control.c
index 16c0dbb75..17edc3d72 100644
--- a/src/output_control.c
+++ b/src/output_control.c
@@ -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
@@ -17,12 +17,15 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "config.h"
#include "output_control.h"
#include "output_api.h"
#include "output_internal.h"
#include "output_thread.h"
#include "mixer_control.h"
#include "mixer_plugin.h"
+#include "filter_plugin.h"
+#include "notify.h"
#include <assert.h>
#include <stdlib.h>
@@ -38,8 +41,9 @@ struct notify audio_output_client_notify;
static void ao_command_wait(struct audio_output *ao)
{
while (ao->command != AO_COMMAND_NONE) {
- notify_signal(&ao->notify);
+ g_mutex_unlock(ao->mutex);
notify_wait(&audio_output_client_notify);
+ g_mutex_lock(ao->mutex);
}
}
@@ -47,6 +51,7 @@ static void ao_command(struct audio_output *ao, enum audio_output_command cmd)
{
assert(ao->command == AO_COMMAND_NONE);
ao->command = cmd;
+ g_cond_signal(ao->cond);
ao_command_wait(ao);
}
@@ -55,7 +60,46 @@ static void ao_command_async(struct audio_output *ao,
{
assert(ao->command == AO_COMMAND_NONE);
ao->command = cmd;
- notify_signal(&ao->notify);
+ g_cond_signal(ao->cond);
+}
+
+void
+audio_output_enable(struct audio_output *ao)
+{
+ if (ao->thread == NULL) {
+ if (ao->plugin->enable == NULL) {
+ /* don't bother to start the thread now if the
+ device doesn't even have a enable() method;
+ just assign the variable and we're done */
+ ao->really_enabled = true;
+ return;
+ }
+
+ audio_output_thread_start(ao);
+ }
+
+ g_mutex_lock(ao->mutex);
+ ao_command(ao, AO_COMMAND_ENABLE);
+ g_mutex_unlock(ao->mutex);
+}
+
+void
+audio_output_disable(struct audio_output *ao)
+{
+ if (ao->thread == NULL) {
+ if (ao->plugin->disable == NULL)
+ ao->really_enabled = false;
+ else
+ /* if there's no thread yet, the device cannot
+ be enabled */
+ assert(!ao->really_enabled);
+
+ return;
+ }
+
+ g_mutex_lock(ao->mutex);
+ ao_command(ao, AO_COMMAND_DISABLE);
+ g_mutex_unlock(ao->mutex);
}
static bool
@@ -74,9 +118,13 @@ audio_output_open(struct audio_output *ao,
if (ao->open &&
audio_format_equals(audio_format, &ao->in_audio_format)) {
- assert(ao->pipe == mp);
+ assert(ao->pipe == mp ||
+ (ao->always_on && ao->pause));
if (ao->pause) {
+ ao->chunk = NULL;
+ ao->pipe = mp;
+
/* unpause with the CANCEL command; this is a
hack, but suits well for forcing the thread
to leave the ao_pause() thread, and we need
@@ -85,6 +133,10 @@ audio_output_open(struct audio_output *ao,
/* we're not using audio_output_cancel() here,
because that function is asynchronous */
ao_command(ao, AO_COMMAND_CANCEL);
+
+ /* the audio output is now waiting for a
+ signal; wake it up immediately */
+ g_cond_signal(ao->cond);
}
return true;
@@ -93,33 +145,47 @@ audio_output_open(struct audio_output *ao,
ao->in_audio_format = *audio_format;
ao->chunk = NULL;
- if (!ao->config_audio_format) {
- if (ao->open)
- audio_output_close(ao);
-
- /* no audio format is configured: copy in->out, let
- the output's open() method determine the effective
- out_audio_format */
- ao->out_audio_format = ao->in_audio_format;
- }
-
ao->pipe = mp;
if (ao->thread == NULL)
audio_output_thread_start(ao);
+ ao_command(ao, ao->open ? AO_COMMAND_REOPEN : AO_COMMAND_OPEN);
open = ao->open;
- if (!open) {
- ao_command(ao, AO_COMMAND_OPEN);
- open = ao->open;
- }
- if (open && ao->mixer != NULL)
- mixer_open(ao->mixer);
+ if (open && ao->mixer != NULL) {
+ GError *error = NULL;
+
+ if (!mixer_open(ao->mixer, &error)) {
+ g_warning("Failed to open mixer for '%s': %s",
+ ao->name, error->message);
+ g_error_free(error);
+ }
+ }
return open;
}
+/**
+ * Same as audio_output_close(), but expects the lock to be held by
+ * the caller.
+ */
+static void
+audio_output_close_locked(struct audio_output *ao)
+{
+ if (ao->mixer != NULL)
+ mixer_auto_close(ao->mixer);
+
+ assert(!ao->open || ao->fail_timer == NULL);
+
+ if (ao->open)
+ ao_command(ao, AO_COMMAND_CLOSE);
+ else if (ao->fail_timer != NULL) {
+ g_timer_destroy(ao->fail_timer);
+ ao->fail_timer = NULL;
+ }
+}
+
bool
audio_output_update(struct audio_output *ao,
const struct audio_format *audio_format,
@@ -127,23 +193,31 @@ audio_output_update(struct audio_output *ao,
{
assert(mp != NULL);
- if (ao->enabled) {
+ g_mutex_lock(ao->mutex);
+
+ if (ao->enabled && ao->really_enabled) {
if (ao->fail_timer == NULL ||
- g_timer_elapsed(ao->fail_timer, NULL) > REOPEN_AFTER)
- return audio_output_open(ao, audio_format, mp);
+ g_timer_elapsed(ao->fail_timer, NULL) > REOPEN_AFTER) {
+ bool success = audio_output_open(ao, audio_format, mp);
+ g_mutex_unlock(ao->mutex);
+ return success;
+ }
} else if (audio_output_is_open(ao))
- audio_output_close(ao);
+ audio_output_close_locked(ao);
+ g_mutex_unlock(ao->mutex);
return false;
}
void
audio_output_play(struct audio_output *ao)
{
- if (!ao->open)
- return;
+ g_mutex_lock(ao->mutex);
- notify_signal(&ao->notify);
+ if (audio_output_is_open(ao))
+ g_cond_signal(ao->cond);
+
+ g_mutex_unlock(ao->mutex);
}
void audio_output_pause(struct audio_output *ao)
@@ -154,27 +228,55 @@ void audio_output_pause(struct audio_output *ao)
mixer_auto_close()) */
mixer_auto_close(ao->mixer);
- ao_command_async(ao, AO_COMMAND_PAUSE);
+ g_mutex_lock(ao->mutex);
+ if (audio_output_is_open(ao))
+ ao_command_async(ao, AO_COMMAND_PAUSE);
+ g_mutex_unlock(ao->mutex);
+}
+
+void
+audio_output_drain_async(struct audio_output *ao)
+{
+ g_mutex_lock(ao->mutex);
+ if (audio_output_is_open(ao))
+ ao_command_async(ao, AO_COMMAND_DRAIN);
+ g_mutex_unlock(ao->mutex);
}
void audio_output_cancel(struct audio_output *ao)
{
- ao_command_async(ao, AO_COMMAND_CANCEL);
+ g_mutex_lock(ao->mutex);
+ if (audio_output_is_open(ao))
+ ao_command_async(ao, AO_COMMAND_CANCEL);
+ g_mutex_unlock(ao->mutex);
}
void audio_output_close(struct audio_output *ao)
{
- assert(!ao->open || ao->fail_timer == NULL);
-
if (ao->mixer != NULL)
mixer_auto_close(ao->mixer);
+ g_mutex_lock(ao->mutex);
+
+ assert(!ao->open || ao->fail_timer == NULL);
+
if (ao->open)
ao_command(ao, AO_COMMAND_CLOSE);
else if (ao->fail_timer != NULL) {
g_timer_destroy(ao->fail_timer);
ao->fail_timer = NULL;
}
+
+ g_mutex_unlock(ao->mutex);
+}
+
+void
+audio_output_release(struct audio_output *ao)
+{
+ if (ao->always_on)
+ audio_output_pause(ao);
+ else
+ audio_output_close(ao);
}
void audio_output_finish(struct audio_output *ao)
@@ -184,7 +286,9 @@ void audio_output_finish(struct audio_output *ao)
assert(ao->fail_timer == NULL);
if (ao->thread != NULL) {
+ g_mutex_lock(ao->mutex);
ao_command(ao, AO_COMMAND_KILL);
+ g_mutex_unlock(ao->mutex);
g_thread_join(ao->thread);
}
@@ -193,6 +297,8 @@ void audio_output_finish(struct audio_output *ao)
ao_plugin_finish(ao->plugin, ao->data);
- notify_deinit(&ao->notify);
+ g_cond_free(ao->cond);
g_mutex_free(ao->mutex);
+
+ filter_free(ao->filter);
}