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authorJ. Alexander Treuman <jat@spatialrift.net>2007-05-28 13:09:41 +0000
committerJ. Alexander Treuman <jat@spatialrift.net>2007-05-28 13:09:41 +0000
commit6e5c90e098005b66f86a9fd99a26956cbaa0c392 (patch)
treed5699855fe945b0b02e511c87def301d119ae922 /trunk/src/audioOutputs/audioOutput_pulse.c
parent28c7a91d2462128a7df9a417cbbd59cad89ba19b (diff)
downloadmpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.tar.gz
mpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.tar.xz
mpd-6e5c90e098005b66f86a9fd99a26956cbaa0c392.zip
Re-tagging 0.13.0 release to fix a couple of bugs with the tarball.
git-svn-id: https://svn.musicpd.org/mpd/tags/release-0.13.0@6325 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'trunk/src/audioOutputs/audioOutput_pulse.c')
-rw-r--r--trunk/src/audioOutputs/audioOutput_pulse.c221
1 files changed, 221 insertions, 0 deletions
diff --git a/trunk/src/audioOutputs/audioOutput_pulse.c b/trunk/src/audioOutputs/audioOutput_pulse.c
new file mode 100644
index 000000000..8948e0263
--- /dev/null
+++ b/trunk/src/audioOutputs/audioOutput_pulse.c
@@ -0,0 +1,221 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * 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 "../audioOutput.h"
+
+#include <stdlib.h>
+
+#ifdef HAVE_PULSE
+
+#include "../conf.h"
+#include "../log.h"
+
+#include <string.h>
+#include <time.h>
+
+#include <pulse/simple.h>
+#include <pulse/error.h>
+
+#define MPD_PULSE_NAME "mpd"
+#define CONN_ATTEMPT_INTERVAL 60
+
+typedef struct _PulseData {
+ pa_simple *s;
+ char *server;
+ char *sink;
+ int connAttempts;
+ time_t lastAttempt;
+} PulseData;
+
+static PulseData *newPulseData(void)
+{
+ PulseData *ret;
+
+ ret = xmalloc(sizeof(PulseData));
+
+ ret->s = NULL;
+ ret->server = NULL;
+ ret->sink = NULL;
+ ret->connAttempts = 0;
+ ret->lastAttempt = 0;
+
+ return ret;
+}
+
+static void freePulseData(PulseData * pd)
+{
+ if (pd->server)
+ free(pd->server);
+ if (pd->sink)
+ free(pd->sink);
+ free(pd);
+}
+
+static int pulse_initDriver(AudioOutput * audioOutput, ConfigParam * param)
+{
+ BlockParam *server = NULL;
+ BlockParam *sink = NULL;
+ PulseData *pd;
+
+ if (param) {
+ server = getBlockParam(param, "server");
+ sink = getBlockParam(param, "sink");
+ }
+
+ pd = newPulseData();
+ pd->server = server ? xstrdup(server->value) : NULL;
+ pd->sink = sink ? xstrdup(sink->value) : NULL;
+ audioOutput->data = pd;
+
+ return 0;
+}
+
+static void pulse_finishDriver(AudioOutput * audioOutput)
+{
+ freePulseData((PulseData *) audioOutput->data);
+}
+
+static int pulse_testDefault(void)
+{
+ pa_simple *s;
+ pa_sample_spec ss;
+ int error;
+
+ ss.format = PA_SAMPLE_S16NE;
+ ss.rate = 44100;
+ ss.channels = 2;
+
+ s = pa_simple_new(NULL, MPD_PULSE_NAME, PA_STREAM_PLAYBACK, NULL,
+ MPD_PULSE_NAME, &ss, NULL, NULL, &error);
+ if (!s) {
+ WARNING("Cannot connect to default PulseAudio server: %s\n",
+ pa_strerror(error));
+ return -1;
+ }
+
+ pa_simple_free(s);
+
+ return 0;
+}
+
+static int pulse_openDevice(AudioOutput * audioOutput)
+{
+ PulseData *pd;
+ AudioFormat *audioFormat;
+ pa_sample_spec ss;
+ time_t t;
+ int error;
+
+ t = time(NULL);
+ pd = audioOutput->data;
+ audioFormat = &audioOutput->outAudioFormat;
+
+ if (pd->connAttempts != 0 &&
+ (t - pd->lastAttempt) < CONN_ATTEMPT_INTERVAL)
+ return -1;
+
+ pd->connAttempts++;
+ pd->lastAttempt = t;
+
+ if (audioFormat->bits != 16) {
+ ERROR("PulseAudio doesn't support %i bit audio\n",
+ audioFormat->bits);
+ return -1;
+ }
+
+ ss.format = PA_SAMPLE_S16NE;
+ ss.rate = audioFormat->sampleRate;
+ ss.channels = audioFormat->channels;
+
+ pd->s = pa_simple_new(pd->server, MPD_PULSE_NAME, PA_STREAM_PLAYBACK,
+ pd->sink, audioOutput->name, &ss, NULL, NULL,
+ &error);
+ if (!pd->s) {
+ ERROR("Cannot connect to server in PulseAudio output "
+ "\"%s\" (attempt %i): %s\n", audioOutput->name,
+ pd->connAttempts, pa_strerror(error));
+ return -1;
+ }
+
+ pd->connAttempts = 0;
+ audioOutput->open = 1;
+
+ DEBUG("PulseAudio output \"%s\" connected and playing %i bit, %i "
+ "channel audio at %i Hz\n", audioOutput->name, audioFormat->bits,
+ audioFormat->channels, audioFormat->sampleRate);
+
+ return 0;
+}
+
+static void pulse_dropBufferedAudio(AudioOutput * audioOutput)
+{
+ PulseData *pd;
+ int error;
+
+ pd = audioOutput->data;
+ if (pa_simple_flush(pd->s, &error) < 0)
+ WARNING("Flush failed in PulseAudio output \"%s\": %s\n",
+ audioOutput->name, pa_strerror(error));
+}
+
+static void pulse_closeDevice(AudioOutput * audioOutput)
+{
+ PulseData *pd;
+
+ pd = audioOutput->data;
+ if (pd->s) {
+ pa_simple_drain(pd->s, NULL);
+ pa_simple_free(pd->s);
+ }
+
+ audioOutput->open = 0;
+}
+
+static int pulse_playAudio(AudioOutput * audioOutput, char *playChunk, int size)
+{
+ PulseData *pd;
+ int error;
+
+ pd = audioOutput->data;
+
+ if (pa_simple_write(pd->s, playChunk, size, &error) < 0) {
+ ERROR("PulseAudio output \"%s\" disconnecting due to write "
+ "error: %s\n", audioOutput->name, pa_strerror(error));
+ pulse_closeDevice(audioOutput);
+ return -1;
+ }
+
+ return 0;
+}
+
+AudioOutputPlugin pulsePlugin = {
+ "pulse",
+ pulse_testDefault,
+ pulse_initDriver,
+ pulse_finishDriver,
+ pulse_openDevice,
+ pulse_playAudio,
+ pulse_dropBufferedAudio,
+ pulse_closeDevice,
+ NULL, /* sendMetadataFunc */
+};
+
+#else /* HAVE_PULSE */
+
+DISABLED_AUDIO_OUTPUT_PLUGIN(pulsePlugin)
+#endif /* HAVE_PULSE */