This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
+ it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
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
+ You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
#include "alsa-util.h"
#include "xmalloc.h"
#include "log.h"
+#include "module-alsa-source-symdef.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("ALSA Source")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+PA_MODULE_USAGE("source_name=<name for the source> device=<ALSA device> format=<sample format> channels=<number of channels> rate=<sample rate> fragments=<number of fragments> fragment_size=<fragment size>")
struct userdata {
snd_pcm_t *pcm_handle;
static const char* const valid_modargs[] = {
"device",
"source_name",
- "format",
"channels",
"rate",
+ "format",
"fragments",
"fragment_size",
NULL
do_read(u);
}
-int pa_module_init(struct pa_core *c, struct pa_module*m) {
+static pa_usec_t source_get_latency_cb(struct pa_source *s) {
+ struct userdata *u = s->userdata;
+ snd_pcm_sframes_t frames;
+ assert(s && u && u->source);
+
+ if (snd_pcm_delay(u->pcm_handle, &frames) < 0) {
+ pa_log(__FILE__": failed to get delay\n");
+ s->get_latency = NULL;
+ return 0;
+ }
+
+ return pa_bytes_to_usec(frames * u->frame_size, &s->sample_spec);
+}
+
+int pa__init(struct pa_core *c, struct pa_module*m) {
struct pa_modargs *ma = NULL;
int ret = -1;
struct userdata *u = NULL;
assert(u->source);
u->source->userdata = u;
+ u->source->get_latency = source_get_latency_cb;
pa_source_set_owner(u->source, m);
u->source->description = pa_sprintf_malloc("Advanced Linux Sound Architecture PCM on '%s'", dev);
fail:
if (u)
- pa_module_done(c, m);
+ pa__done(c, m);
goto finish;
}
-void pa_module_done(struct pa_core *c, struct pa_module*m) {
+void pa__done(struct pa_core *c, struct pa_module*m) {
struct userdata *u;
assert(c && m);
if (!(u = m->userdata))
return;
- if (u->source)
- pa_source_free(u->source);
+ if (u->source) {
+ pa_source_disconnect(u->source);
+ pa_source_unref(u->source);
+ }
if (u->io_events)
pa_free_io_events(c->mainloop, u->io_events, u->n_io_events);