+++ /dev/null
-/* $Id$ */
-
-/***
- 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 "sink-input.h"
-#include "sample-util.h"
-#include "xmalloc.h"
-#include "subscribe.h"
-#include "log.h"
-
-#define CONVERT_BUFFER_LENGTH 4096
-
-pa_sink_input* pa_sink_input_new(
- pa_sink *s,
- const char *driver,
- const char *name,
- const pa_sample_spec *spec,
- const pa_channel_map *map,
- int variable_rate,
- int resample_method) {
-
- pa_sink_input *i;
- pa_resampler *resampler = NULL;
- int r;
- char st[256];
- pa_channel_map tmap;
-
- assert(s);
- assert(spec);
- assert(s->state == PA_SINK_RUNNING);
-
- if (pa_idxset_size(s->inputs) >= PA_MAX_INPUTS_PER_SINK) {
- pa_log_warn(__FILE__": Failed to create sink input: too many inputs per sink.\n");
- return NULL;
- }
-
- if (resample_method == PA_RESAMPLER_INVALID)
- resample_method = s->core->resample_method;
-
- if (!map) {
- pa_channel_map_init_auto(&tmap, spec->channels);
- map = &tmap;
- }
-
- if (variable_rate || !pa_sample_spec_equal(spec, &s->sample_spec) || !pa_channel_map_equal(map, &s->channel_map))
- if (!(resampler = pa_resampler_new(spec, map, &s->sample_spec, &s->channel_map, s->core->memblock_stat, resample_method)))
- return NULL;
-
- i = pa_xnew(pa_sink_input, 1);
- i->ref = 1;
- i->state = PA_SINK_INPUT_RUNNING;
- i->name = pa_xstrdup(name);
- i->driver = pa_xstrdup(driver);
- i->owner = NULL;
- i->sink = s;
- i->client = NULL;
-
- i->sample_spec = *spec;
- i->channel_map = *map;
-
- pa_cvolume_reset(&i->volume, spec->channels);
-
- i->peek = NULL;
- i->drop = NULL;
- i->kill = NULL;
- i->get_latency = NULL;
- i->underrun = NULL;
- i->userdata = NULL;
-
- i->playing = 0;
-
- pa_memchunk_reset(&i->resampled_chunk);
- i->resampler = resampler;
-
- assert(s->core);
- r = pa_idxset_put(s->core->sink_inputs, i, &i->index);
- assert(r == 0 && i->index != PA_IDXSET_INVALID);
- r = pa_idxset_put(s->inputs, i, 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\"\n", i->index, i->name, s->index, st);
-
- pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW, i->index);
-
- return i;
-}
-
-void pa_sink_input_disconnect(pa_sink_input *i) {
- assert(i);
- assert(i->state != PA_SINK_INPUT_DISCONNECTED);
- assert(i->sink);
- assert(i->sink->core);
-
- pa_idxset_remove_by_data(i->sink->core->sink_inputs, i, NULL);
- pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
-
- pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
- i->sink = NULL;
-
- i->peek = NULL;
- i->drop = NULL;
- i->kill = NULL;
- i->get_latency = NULL;
- i->underrun = NULL;
-
- i->playing = 0;
- i->state = PA_SINK_INPUT_DISCONNECTED;
-}
-
-static void sink_input_free(pa_sink_input* i) {
- assert(i);
-
- if (i->state != PA_SINK_INPUT_DISCONNECTED)
- pa_sink_input_disconnect(i);
-
- pa_log_info(__FILE__": freed %u \"%s\"\n", i->index, i->name);
-
- if (i->resampled_chunk.memblock)
- pa_memblock_unref(i->resampled_chunk.memblock);
-
- if (i->resampler)
- pa_resampler_free(i->resampler);
-
- pa_xfree(i->name);
- pa_xfree(i->driver);
- pa_xfree(i);
-}
-
-void pa_sink_input_unref(pa_sink_input *i) {
- assert(i);
- assert(i->ref >= 1);
-
- if (!(--i->ref))
- sink_input_free(i);
-}
-
-pa_sink_input* pa_sink_input_ref(pa_sink_input *i) {
- assert(i);
- assert(i->ref >= 1);
-
- i->ref++;
- return i;
-}
-
-void pa_sink_input_kill(pa_sink_input*i) {
- assert(i);
- assert(i->ref >= 1);
-
- if (i->kill)
- i->kill(i);
-}
-
-pa_usec_t pa_sink_input_get_latency(pa_sink_input *i) {
- pa_usec_t r = 0;
-
- assert(i);
- assert(i->ref >= 1);
-
- if (i->get_latency)
- r += i->get_latency(i);
-
- if (i->resampled_chunk.memblock)
- r += pa_bytes_to_usec(i->resampled_chunk.length, &i->sample_spec);
-
- return r;
-}
-
-int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume) {
- int ret = -1;
- int do_volume_adj_here;
-
- assert(i);
- assert(i->ref >= 1);
- assert(chunk);
- assert(volume);
-
- pa_sink_input_ref(i);
-
- if (!i->peek || !i->drop || i->state == PA_SINK_INPUT_CORKED)
- goto finish;
-
- if (!i->resampler) {
- do_volume_adj_here = 0;
- ret = i->peek(i, chunk);
- goto finish;
- }
-
- do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map);
-
- while (!i->resampled_chunk.memblock) {
- pa_memchunk tchunk;
- size_t l;
-
- if ((ret = i->peek(i, &tchunk)) < 0)
- goto finish;
-
- assert(tchunk.length);
-
- l = pa_resampler_request(i->resampler, CONVERT_BUFFER_LENGTH);
-
- if (l > tchunk.length)
- l = tchunk.length;
-
- i->drop(i, &tchunk, l);
- tchunk.length = l;
-
- /* It might be necessary to adjust the volume here */
- if (do_volume_adj_here) {
- pa_memchunk_make_writable(&tchunk, i->sink->core->memblock_stat, 0);
- pa_volume_memchunk(&tchunk, &i->sample_spec, &i->volume);
- }
-
- pa_resampler_run(i->resampler, &tchunk, &i->resampled_chunk);
- pa_memblock_unref(tchunk.memblock);
- }
-
- assert(i->resampled_chunk.memblock);
- assert(i->resampled_chunk.length);
-
- *chunk = i->resampled_chunk;
- pa_memblock_ref(i->resampled_chunk.memblock);
-
- ret = 0;
-
-finish:
-
- if (ret < 0 && i->playing && i->underrun)
- i->underrun(i);
-
- i->playing = ret >= 0;
-
- if (ret >= 0) {
- /* Let's see if we had to apply the volume adjustment
- * ourselves, or if this can be done by the sink for us */
-
- if (do_volume_adj_here)
- /* We've both the same channel map, so let's have the sink do the adjustment for us*/
-
- pa_cvolume_reset(volume, i->sample_spec.channels);
- else
- /* We had different channel maps, so we already did the adjustment */
- *volume = i->volume;
- }
-
- pa_sink_input_unref(i);
-
- return ret;
-}
-
-void pa_sink_input_drop(pa_sink_input *i, const pa_memchunk *chunk, size_t length) {
- assert(i);
- assert(i->ref >= 1);
- assert(length > 0);
-
- if (!i->resampler) {
- if (i->drop)
- i->drop(i, chunk, length);
- return;
- }
-
- assert(i->resampled_chunk.memblock);
- assert(i->resampled_chunk.length >= length);
-
- i->resampled_chunk.index += length;
- i->resampled_chunk.length -= length;
-
- if (i->resampled_chunk.length <= 0) {
- pa_memblock_unref(i->resampled_chunk.memblock);
- i->resampled_chunk.memblock = NULL;
- i->resampled_chunk.index = i->resampled_chunk.length = 0;
- }
-}
-
-void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume) {
- assert(i);
- assert(i->ref >= 1);
- assert(i->sink);
- assert(i->sink->core);
-
- if (pa_cvolume_equal(&i->volume, volume))
- return;
-
- i->volume = *volume;
- pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
-}
-
-const pa_cvolume * pa_sink_input_get_volume(pa_sink_input *i) {
- assert(i);
- assert(i->ref >= 1);
-
- return &i->volume;
-}
-
-void pa_sink_input_cork(pa_sink_input *i, int b) {
- int n;
-
- assert(i);
- assert(i->ref >= 1);
-
- if (i->state == PA_SINK_INPUT_DISCONNECTED)
- return;
-
- n = i->state == PA_SINK_INPUT_CORKED && !b;
-
- i->state = b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
-
- if (n)
- pa_sink_notify(i->sink);
-}
-
-void pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) {
- assert(i);
- assert(i->resampler);
- assert(i->ref >= 1);
-
- if (i->sample_spec.rate == rate)
- return;
-
- i->sample_spec.rate = rate;
- pa_resampler_set_input_rate(i->resampler, rate);
-}
-
-void pa_sink_input_set_name(pa_sink_input *i, const char *name) {
- assert(i);
- assert(i->ref >= 1);
-
- pa_xfree(i->name);
- i->name = pa_xstrdup(name);
-
- pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
-}
-
-pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) {
- assert(i);
- assert(i->ref >= 1);
-
- if (!i->resampler)
- return PA_RESAMPLER_INVALID;
-
- return pa_resampler_get_method(i->resampler);
-}