big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/pulsecore/source-output.c

@@ -0,0 +1,241 @@
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+ 
+  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 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, 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 <pulse/utf8.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core-subscribe.h>
+#include <pulsecore/log.h>
+
+#include "source-output.h"
+
+#define CHECK_VALIDITY_RETURN_NULL(condition) \
+do {\
+if (!(condition)) \
+    return NULL; \
+} while (0)
+
+pa_source_output* pa_source_output_new(
+        pa_source *s,
+        const char *driver,
+        const char *name,
+        const pa_sample_spec *spec,
+        const pa_channel_map *map,
+        int resample_method) {
+    
+    pa_source_output *o;
+    pa_resampler *resampler = NULL;
+    int r;
+    char st[256];
+    pa_channel_map tmap;
+
+    assert(s);
+    assert(spec);
+    assert(s->state == PA_SOURCE_RUNNING);
+
+    CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec));
+
+    if (!map)
+        map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT);
+    
+    CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map));
+    CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels);
+    CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver));
+    CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name));
+
+    if (pa_idxset_size(s->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) {
+        pa_log(__FILE__": Failed to create source output: too many outputs per source.");
+        return NULL;
+    }
+
+    if (resample_method == PA_RESAMPLER_INVALID)
+        resample_method = s->core->resample_method;
+
+    if (!pa_sample_spec_equal(&s->sample_spec, spec) || !pa_channel_map_equal(&s->channel_map, map))
+        if (!(resampler = pa_resampler_new(&s->sample_spec, &s->channel_map, spec, map, s->core->memblock_stat, resample_method)))
+            return NULL;
+    
+    o = pa_xnew(pa_source_output, 1);
+    o->ref = 1;
+    o->state = PA_SOURCE_OUTPUT_RUNNING;
+    o->name = pa_xstrdup(name);
+    o->driver = pa_xstrdup(driver);
+    o->owner = NULL;
+    o->source = s;
+    o->client = NULL;
+    
+    o->sample_spec = *spec;
+    o->channel_map = *map;
+
+    o->push = NULL;
+    o->kill = NULL;
+    o->get_latency = NULL;
+    o->userdata = 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_sample_spec_snprint(st, sizeof(st), spec);
+    pa_log_info(__FILE__": created %u \"%s\" on %u with sample spec \"%s\"", o->index, o->name, s->index, st);
+    
+    pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index);
+    
+    return o;    
+}
+
+void pa_source_output_disconnect(pa_source_output*o) {
+    assert(o);
+    assert(o->state != PA_SOURCE_OUTPUT_DISCONNECTED);
+    assert(o->source);
+    assert(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->get_latency = NULL;
+    
+    o->state = PA_SOURCE_OUTPUT_DISCONNECTED;
+}
+
+static void source_output_free(pa_source_output* o) {
+    assert(o);
+
+    if (o->state != PA_SOURCE_OUTPUT_DISCONNECTED)
+        pa_source_output_disconnect(o);
+
+    pa_log_info(__FILE__": freed %u \"%s\"", o->index, o->name); 
+    
+    if (o->resampler)
+        pa_resampler_free(o->resampler);
+
+    pa_xfree(o->name);
+    pa_xfree(o->driver);
+    pa_xfree(o);
+}
+
+void pa_source_output_unref(pa_source_output* o) {
+    assert(o);
+    assert(o->ref >= 1);
+
+    if (!(--o->ref))
+        source_output_free(o);
+}
+
+pa_source_output* pa_source_output_ref(pa_source_output *o) {
+    assert(o);
+    assert(o->ref >= 1);
+    
+    o->ref++;
+    return o;
+}
+
+
+void pa_source_output_kill(pa_source_output*o) {
+    assert(o);
+    assert(o->ref >= 1);
+
+    if (o->kill)
+        o->kill(o);
+}
+
+void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) {
+    pa_memchunk rchunk;
+    
+    assert(o);
+    assert(chunk);
+    assert(chunk->length);
+    assert(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(pa_source_output *o, const char *name) {
+    assert(o);
+    assert(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(pa_source_output *o) {
+    assert(o);
+    assert(o->ref >= 1);
+    
+    if (o->get_latency)
+        return o->get_latency(o);
+
+    return 0;
+}
+
+void pa_source_output_cork(pa_source_output *o, int b) {
+    assert(o);
+    assert(o->ref >= 1);
+
+    if (o->state == PA_SOURCE_OUTPUT_DISCONNECTED)
+        return;
+    
+    o->state = b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING;
+}
+
+pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) {
+    assert(o);
+    assert(o->ref >= 1);
+    
+    if (!o->resampler)
+        return PA_RESAMPLER_INVALID;
+
+    return pa_resampler_get_method(o->resampler);
+}