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-rw-r--r--src/Makefile.am2
-rw-r--r--src/output_api.h26
-rw-r--r--src/output_control.c77
-rw-r--r--src/output_init.c4
-rw-r--r--src/output_thread.c121
-rw-r--r--src/output_thread.h26
6 files changed, 218 insertions, 38 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 368e051fc..2069c45c3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -37,6 +37,7 @@ mpd_headers = \
audioOutput.h \
output_api.h \
output_list.h \
+ output_thread.h \
output_control.h \
audioOutputs/audioOutput_shout.h \
buffer2array.h \
@@ -114,6 +115,7 @@ mpd_SOURCES = \
audio.c \
audioOutput.c \
output_list.c \
+ output_thread.c \
output_control.c \
output_init.c \
buffer2array.c \
diff --git a/src/output_api.h b/src/output_api.h
index 887b57c7c..bea5c5b4c 100644
--- a/src/output_api.h
+++ b/src/output_api.h
@@ -26,6 +26,7 @@
#include "tag.h"
#include "conf.h"
#include "log.h"
+#include "notify.h"
#include "os_compat.h"
#define DISABLED_AUDIO_OUTPUT_PLUGIN(plugin) const struct audio_output_plugin plugin;
@@ -54,6 +55,16 @@ struct audio_output_plugin {
const struct tag *tag);
};
+enum audio_output_command {
+ AO_COMMAND_NONE = 0,
+ AO_COMMAND_OPEN,
+ AO_COMMAND_CLOSE,
+ AO_COMMAND_PLAY,
+ AO_COMMAND_CANCEL,
+ AO_COMMAND_SEND_TAG,
+ AO_COMMAND_KILL
+};
+
struct audio_output {
int open;
const char *name;
@@ -67,7 +78,22 @@ struct audio_output {
char *convBuffer;
size_t convBufferLen;
+ pthread_t thread;
+ struct notify notify;
+ enum audio_output_command command;
+ union {
+ struct {
+ const char *data;
+ size_t size;
+ } play;
+
+ const struct tag *tag;
+ } args;
+ int result;
+
void *data;
};
+extern struct notify audio_output_client_notify;
+
#endif
diff --git a/src/output_control.c b/src/output_control.c
index 0818a459b..2fc692d6b 100644
--- a/src/output_control.c
+++ b/src/output_control.c
@@ -18,8 +18,27 @@
#include "output_control.h"
#include "output_api.h"
+#include "output_thread.h"
#include "pcm_utils.h"
-#include "utils.h"
+
+#include <pthread.h>
+
+struct notify audio_output_client_notify = NOTIFY_INITIALIZER;
+
+static void ao_command_wait(struct audio_output *ao)
+{
+ while (ao->command != AO_COMMAND_NONE) {
+ notify_signal(&ao->notify);
+ notify_wait(&audio_output_client_notify);
+ }
+}
+
+static void ao_command(struct audio_output *ao, enum audio_output_command cmd)
+{
+ assert(ao->command == AO_COMMAND_NONE);
+ ao->command = cmd;
+ ao_command_wait(ao);
+}
int audio_output_open(struct audio_output *audioOutput,
const struct audio_format *audioFormat)
@@ -47,67 +66,46 @@ int audio_output_open(struct audio_output *audioOutput,
audio_output_close(audioOutput);
}
- if (!audioOutput->open)
- ret = audioOutput->plugin->open(audioOutput);
+ if (audioOutput->thread == 0)
+ audio_output_thread_start(audioOutput);
- return ret;
-}
-
-static void convertAudioFormat(struct audio_output *audioOutput,
- const char **chunkArgPtr, size_t *sizeArgPtr)
-{
- size_t size = pcm_sizeOfConvBuffer(&(audioOutput->inAudioFormat),
- *sizeArgPtr,
- &(audioOutput->outAudioFormat));
-
- if (size > audioOutput->convBufferLen) {
- if (audioOutput->convBuffer != NULL)
- free(audioOutput->convBuffer);
- audioOutput->convBuffer = xmalloc(size);
- audioOutput->convBufferLen = size;
+ if (!audioOutput->open) {
+ ao_command(audioOutput, AO_COMMAND_OPEN);
+ ret = audioOutput->result;
}
- *sizeArgPtr = pcm_convertAudioFormat(&(audioOutput->inAudioFormat),
- *chunkArgPtr, *sizeArgPtr,
- &(audioOutput->outAudioFormat),
- audioOutput->convBuffer,
- &audioOutput->convState);
-
- *chunkArgPtr = audioOutput->convBuffer;
+ return ret;
}
int audio_output_play(struct audio_output *audioOutput,
const char *playChunk, size_t size)
{
- int ret;
-
if (!audioOutput->open)
return -1;
- if (!audio_format_equals(&audioOutput->inAudioFormat,
- &audioOutput->outAudioFormat))
- convertAudioFormat(audioOutput, &playChunk, &size);
-
- ret = audioOutput->plugin->play(audioOutput, playChunk, size);
+ audioOutput->args.play.data = playChunk;
+ audioOutput->args.play.size = size;
+ ao_command(audioOutput, AO_COMMAND_PLAY);
- return ret;
+ return audioOutput->result;
}
void audio_output_cancel(struct audio_output *audioOutput)
{
- if (audioOutput->open)
- audioOutput->plugin->cancel(audioOutput);
+ ao_command(audioOutput, AO_COMMAND_CANCEL);
}
void audio_output_close(struct audio_output *audioOutput)
{
if (audioOutput->open)
- audioOutput->plugin->close(audioOutput);
+ ao_command(audioOutput, AO_COMMAND_CLOSE);
}
void audio_output_finish(struct audio_output *audioOutput)
{
audio_output_close(audioOutput);
+ if (audioOutput->thread != 0)
+ ao_command(audioOutput, AO_COMMAND_KILL);
if (audioOutput->plugin->finish)
audioOutput->plugin->finish(audioOutput);
if (audioOutput->convBuffer)
@@ -117,6 +115,9 @@ void audio_output_finish(struct audio_output *audioOutput)
void audio_output_send_tag(struct audio_output *audioOutput,
const struct tag *tag)
{
- if (audioOutput->plugin->send_tag)
- audioOutput->plugin->send_tag(audioOutput, tag);
+ if (audioOutput->plugin->send_tag == NULL)
+ return;
+
+ audioOutput->args.tag = tag;
+ ao_command(audioOutput, AO_COMMAND_SEND_TAG);
}
diff --git a/src/output_init.c b/src/output_init.c
index f6d3799c4..f57f39336 100644
--- a/src/output_init.c
+++ b/src/output_init.c
@@ -98,6 +98,10 @@ int audio_output_init(struct audio_output *ao, ConfigParam * param)
} else
audio_format_clear(&ao->reqAudioFormat);
+ ao->thread = 0;
+ notify_init(&ao->notify);
+ ao->command = AO_COMMAND_NONE;
+
if (plugin->init(ao, param) != 0)
return 0;
diff --git a/src/output_thread.c b/src/output_thread.c
new file mode 100644
index 000000000..eb86f0688
--- /dev/null
+++ b/src/output_thread.c
@@ -0,0 +1,121 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2008 Max Kellermann <max@duempel.org>
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "output_thread.h"
+#include "output_api.h"
+#include "utils.h"
+
+static void ao_command_finished(struct audio_output *ao)
+{
+ assert(ao->command != AO_COMMAND_NONE);
+ ao->command = AO_COMMAND_NONE;
+ notify_signal(&audio_output_client_notify);
+}
+
+static void convertAudioFormat(struct audio_output *audioOutput,
+ const char **chunkArgPtr, size_t *sizeArgPtr)
+{
+ size_t size = pcm_sizeOfConvBuffer(&(audioOutput->inAudioFormat),
+ *sizeArgPtr,
+ &(audioOutput->outAudioFormat));
+
+ if (size > audioOutput->convBufferLen) {
+ if (audioOutput->convBuffer != NULL)
+ free(audioOutput->convBuffer);
+ audioOutput->convBuffer = xmalloc(size);
+ audioOutput->convBufferLen = size;
+ }
+
+ *sizeArgPtr = pcm_convertAudioFormat(&(audioOutput->inAudioFormat),
+ *chunkArgPtr, *sizeArgPtr,
+ &(audioOutput->outAudioFormat),
+ audioOutput->convBuffer,
+ &audioOutput->convState);
+
+ *chunkArgPtr = audioOutput->convBuffer;
+}
+
+static void ao_play(struct audio_output *ao)
+{
+ const char *data = ao->args.play.data;
+ size_t size = ao->args.play.size;
+
+ if (!audio_format_equals(&ao->inAudioFormat, &ao->outAudioFormat))
+ convertAudioFormat(ao, &data, &size);
+
+ ao->result = ao->plugin->play(ao, data, size);
+ ao_command_finished(ao);
+}
+
+static void *audio_output_task(void *arg)
+{
+ struct audio_output *ao = arg;
+
+ notify_enter(&ao->notify);
+
+ while (1) {
+ switch (ao->command) {
+ case AO_COMMAND_NONE:
+ break;
+
+ case AO_COMMAND_OPEN:
+ assert(!ao->open);
+ ao->plugin->open(ao);
+ ao_command_finished(ao);
+ break;
+
+ case AO_COMMAND_CLOSE:
+ assert(ao->open);
+ ao->plugin->close(ao);
+ ao_command_finished(ao);
+ break;
+
+ case AO_COMMAND_PLAY:
+ ao_play(ao);
+ break;
+
+ case AO_COMMAND_CANCEL:
+ ao->plugin->cancel(ao);
+ ao_command_finished(ao);
+ break;
+
+ case AO_COMMAND_SEND_TAG:
+ ao->plugin->send_tag(ao, ao->args.tag);
+ ao_command_finished(ao);
+ break;
+
+ case AO_COMMAND_KILL:
+ ao_command_finished(ao);
+ return NULL;
+ }
+
+ notify_wait(&ao->notify);
+ }
+}
+
+void audio_output_thread_start(struct audio_output *ao)
+{
+ pthread_attr_t attr;
+
+ assert(ao->command == AO_COMMAND_NONE);
+
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ if (pthread_create(&ao->thread, &attr, audio_output_task, ao))
+ FATAL("Failed to spawn output task: %s\n", strerror(errno));
+}
diff --git a/src/output_thread.h b/src/output_thread.h
new file mode 100644
index 000000000..2b2f1fb3d
--- /dev/null
+++ b/src/output_thread.h
@@ -0,0 +1,26 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2008 Max Kellermann <max@duempel.org>
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef OUTPUT_THREAD_H
+#define OUTPUT_THREAD_H
+
+struct audio_output;
+
+void audio_output_thread_start(struct audio_output *ao);
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 21:26:31 +0000