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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio 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 of the License,
or (at your option) any later version.
polypaudio 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 polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "source-output.h"
#include "xmalloc.h"
#include "subscribe.h"
#include "log.h"
struct pa_source_output* pa_source_output_new(struct pa_source *s, const char *name, const struct pa_sample_spec *spec, int resample_method) {
struct pa_source_output *o;
struct pa_resampler *resampler = NULL;
int r;
assert(s && spec);
if (pa_idxset_ncontents(s->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
pa_log(__FILE__": Failed to create source output: too many outputs per source.\n");
return NULL;
}
if (resample_method == PA_RESAMPLER_INVALID)
resample_method = s->core->resample_method;
if (!pa_sample_spec_equal(&s->sample_spec, spec))
if (!(resampler = pa_resampler_new(&s->sample_spec, spec, s->core->memblock_stat, resample_method)))
return NULL;
o = pa_xmalloc(sizeof(struct pa_source_output));
o->ref = 1;
o->state = PA_SOURCE_OUTPUT_RUNNING;
o->name = pa_xstrdup(name);
o->client = NULL;
o->owner = NULL;
o->source = s;
o->sample_spec = *spec;
o->push = NULL;
o->kill = NULL;
o->userdata = NULL;
o->get_latency = NULL;
o->resampler = resampler;
assert(s->core);
r = pa_idxset_put(s->core->source_outputs, o, &o->index);
assert(r == 0 && o->index != PA_IDXSET_INVALID);
r = pa_idxset_put(s->outputs, o, NULL);
assert(r == 0);
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
return o;
}
void pa_source_output_disconnect(struct pa_source_output*o) {
assert(o && o->state != PA_SOURCE_OUTPUT_DISCONNECTED && o->source && o->source->core);
pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL);
pa_idxset_remove_by_data(o->source->outputs, o, NULL);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index);
o->source = NULL;
o->push = NULL;
o->kill = NULL;
o->state = PA_SOURCE_OUTPUT_DISCONNECTED;
}
static void source_output_free(struct pa_source_output* o) {
assert(o);
if (o->state != PA_SOURCE_OUTPUT_DISCONNECTED)
pa_source_output_disconnect(o);
if (o->resampler)
pa_resampler_free(o->resampler);
pa_xfree(o->name);
pa_xfree(o);
}
void pa_source_output_unref(struct pa_source_output* o) {
assert(o && o->ref >= 1);
if (!(--o->ref))
source_output_free(o);
}
struct pa_source_output* pa_source_output_ref(struct pa_source_output *o) {
assert(o && o->ref >= 1);
o->ref++;
return o;
}
void pa_source_output_kill(struct pa_source_output*o) {
assert(o && o->ref >= 1);
if (o->kill)
o->kill(o);
}
void pa_source_output_push(struct pa_source_output *o, const struct pa_memchunk *chunk) {
struct pa_memchunk rchunk;
assert(o && chunk && chunk->length && o->push);
if (o->state == PA_SOURCE_OUTPUT_CORKED)
return;
if (!o->resampler) {
o->push(o, chunk);
return;
}
pa_resampler_run(o->resampler, chunk, &rchunk);
if (!rchunk.length)
return;
assert(rchunk.memblock);
o->push(o, &rchunk);
pa_memblock_unref(rchunk.memblock);
}
void pa_source_output_set_name(struct pa_source_output *o, const char *name) {
assert(o && o->ref >= 1);
pa_xfree(o->name);
o->name = pa_xstrdup(name);
pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index);
}
pa_usec_t pa_source_output_get_latency(struct pa_source_output *o) {
assert(o && o->ref >= 1);
if (o->get_latency)
return o->get_latency(o);
return 0;
}
void pa_source_output_cork(struct pa_source_output *o, int b) {
assert(o && o->ref >= 1);
if (o->state == PA_SOURCE_OUTPUT_DISCONNECTED)
return;
o->state = b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
}
enum pa_resample_method pa_source_output_get_resample_method(struct pa_source_output *o) {
assert(o && o->ref >= 1);
if (!o->resampler)
return PA_RESAMPLER_INVALID;
return pa_resampler_get_method(o->resampler);
}
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