1 files changed, 137 insertions, 0 deletions
diff --git a/src/modules/alsa/module-alsa-sink.c b/src/modules/alsa/module-alsa-sink.c
new file mode 100644
index 0000000..a90c5e4
--- /dev/null
+++ b/src/modules/alsa/module-alsa-sink.c
@@ -0,0 +1,137 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2008 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulsecore/module.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/modargs.h>
+
+#include "alsa-util.h"
+#include "alsa-sink.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("ALSA Sink");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(false);
+PA_MODULE_USAGE(
+        "name=<name of the sink, to be prefixed> "
+        "sink_name=<name for the sink> "
+        "sink_properties=<properties for the sink> "
+        "namereg_fail=<when false attempt to synthesise new sink_name if it is already taken> "
+        "device=<ALSA device> "
+        "device_id=<ALSA card index> "
+        "format=<sample format> "
+        "rate=<sample rate> "
+        "alternate_rate=<alternate sample rate> "
+        "channels=<number of channels> "
+        "channel_map=<channel map> "
+        "fragments=<number of fragments> "
+        "fragment_size=<fragment size> "
+        "mmap=<enable memory mapping?> "
+        "tsched=<enable system timer based scheduling mode?> "
+        "tsched_buffer_size=<buffer size when using timer based scheduling> "
+        "tsched_buffer_watermark=<lower fill watermark> "
+        "ignore_dB=<ignore dB information from the device?> "
+        "control=<name of mixer control, or name and index separated by a comma> "
+        "rewind_safeguard=<number of bytes that cannot be rewound> "
+        "deferred_volume=<Synchronize software and hardware volume changes to avoid momentary jumps?> "
+        "deferred_volume_safety_margin=<usec adjustment depending on volume direction> "
+        "deferred_volume_extra_delay=<usec adjustment to HW volume changes> "
+        "fixed_latency_range=<disable latency range changes on underrun?>");
+
+static const char* const valid_modargs[] = {
+    "name",
+    "sink_name",
+    "sink_properties",
+    "namereg_fail",
+    "device",
+    "device_id",
+    "format",
+    "rate",
+    "alternate_rate",
+    "channels",
+    "channel_map",
+    "fragments",
+    "fragment_size",
+    "mmap",
+    "tsched",
+    "tsched_buffer_size",
+    "tsched_buffer_watermark",
+    "ignore_dB",
+    "control",
+    "rewind_safeguard",
+    "deferred_volume",
+    "deferred_volume_safety_margin",
+    "deferred_volume_extra_delay",
+    "fixed_latency_range",
+    NULL
+};
+
+int pa__init(pa_module*m) {
+    pa_modargs *ma = NULL;
+
+    pa_assert(m);
+
+    pa_alsa_refcnt_inc();
+
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+        pa_log("Failed to parse module arguments");
+        goto fail;
+    }
+
+    if (!(m->userdata = pa_alsa_sink_new(m, ma, __FILE__, NULL, NULL)))
+        goto fail;
+
+    pa_modargs_free(ma);
+
+    return 0;
+
+fail:
+
+    if (ma)
+        pa_modargs_free(ma);
+
+    pa__done(m);
+
+    return -1;
+}
+
+int pa__get_n_used(pa_module *m) {
+    pa_sink *sink;
+
+    pa_assert(m);
+    pa_assert_se(sink = m->userdata);
+
+    return pa_sink_linked_by(sink);
+}
+
+void pa__done(pa_module*m) {
+    pa_sink *sink;
+
+    pa_assert(m);
+
+    if ((sink = m->userdata))
+        pa_alsa_sink_free(sink);
+
+    pa_alsa_refcnt_dec();
+}