mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-12-25 08:57:05 -05:00
Reorganised the source tree. We now have src/ with a couple of subdirs:
* daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Pierre Ossman
parent
5b881e6228
commit
e205b25d65
246 changed files with 724 additions and 689 deletions
394
src/modules/module-combine.c
Normal file
394
src/modules/module-combine.c
Normal file
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@ -0,0 +1,394 @@
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <assert.h>
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#include <stdio.h>
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#include <polypcore/module.h>
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#include <polypcore/llist.h>
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#include <polypcore/sink.h>
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#include <polypcore/sink-input.h>
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#include <polypcore/memblockq.h>
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#include <polypcore/log.h>
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#include <polypcore/util.h>
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#include <polypcore/xmalloc.h>
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#include <polypcore/modargs.h>
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#include <polypcore/namereg.h>
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#include "module-combine-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering")
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PA_MODULE_DESCRIPTION("Combine multiple sinks to one")
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PA_MODULE_VERSION(PACKAGE_VERSION)
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PA_MODULE_USAGE("sink_name=<name for the sink> master=<master sink> slaves=<slave sinks> adjust_time=<seconds> resample_method=<method>")
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#define DEFAULT_SINK_NAME "combined"
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#define MEMBLOCKQ_MAXLENGTH (1024*170)
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#define RENDER_SIZE (1024*10)
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#define DEFAULT_ADJUST_TIME 20
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static const char* const valid_modargs[] = {
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"sink_name",
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"master",
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"slaves",
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"adjust_time",
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"resample_method",
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NULL
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};
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struct output {
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struct userdata *userdata;
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pa_sink_input *sink_input;
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size_t counter;
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pa_memblockq *memblockq;
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pa_usec_t total_latency;
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PA_LLIST_FIELDS(struct output);
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};
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struct userdata {
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pa_module *module;
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pa_core *core;
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pa_sink *sink;
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unsigned n_outputs;
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struct output *master;
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pa_time_event *time_event;
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uint32_t adjust_time;
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PA_LLIST_HEAD(struct output, outputs);
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};
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static void output_free(struct output *o);
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static void clear_up(struct userdata *u);
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static void update_usage(struct userdata *u) {
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pa_module_set_used(u->module,
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(u->sink ? pa_idxset_size(u->sink->inputs) : 0) +
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(u->sink ? pa_idxset_size(u->sink->monitor_source->outputs) : 0));
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}
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static void adjust_rates(struct userdata *u) {
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struct output *o;
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pa_usec_t max_sink_latency = 0, min_total_latency = (pa_usec_t) -1, target_latency;
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uint32_t base_rate;
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assert(u && u->sink);
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for (o = u->outputs; o; o = o->next) {
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uint32_t sink_latency = o->sink_input->sink ? pa_sink_get_latency(o->sink_input->sink) : 0;
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o->total_latency = sink_latency + pa_sink_input_get_latency(o->sink_input);
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if (sink_latency > max_sink_latency)
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max_sink_latency = sink_latency;
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if (o->total_latency < min_total_latency)
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min_total_latency = o->total_latency;
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}
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assert(min_total_latency != (pa_usec_t) -1);
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target_latency = max_sink_latency > min_total_latency ? max_sink_latency : min_total_latency;
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pa_log_info(__FILE__": [%s] target latency is %0.0f usec.\n", u->sink->name, (float) target_latency);
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base_rate = u->sink->sample_spec.rate;
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for (o = u->outputs; o; o = o->next) {
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uint32_t r = base_rate;
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if (o->total_latency < target_latency)
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r -= (uint32_t) (((((double) target_latency - o->total_latency))/u->adjust_time)*r/ 1000000);
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else if (o->total_latency > target_latency)
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r += (uint32_t) (((((double) o->total_latency - target_latency))/u->adjust_time)*r/ 1000000);
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if (r < (uint32_t) (base_rate*0.9) || r > (uint32_t) (base_rate*1.1))
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pa_log_warn(__FILE__": [%s] sample rates too different, not adjusting (%u vs. %u).\n", o->sink_input->name, base_rate, r);
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else {
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pa_log_info(__FILE__": [%s] new rate is %u Hz; ratio is %0.3f; latency is %0.0f usec.\n", o->sink_input->name, r, (double) r / base_rate, (float) o->total_latency);
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pa_sink_input_set_rate(o->sink_input, r);
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}
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}
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}
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static void request_memblock(struct userdata *u) {
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pa_memchunk chunk;
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struct output *o;
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assert(u && u->sink);
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update_usage(u);
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if (pa_sink_render(u->sink, RENDER_SIZE, &chunk) < 0)
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return;
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for (o = u->outputs; o; o = o->next)
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pa_memblockq_push_align(o->memblockq, &chunk, 0);
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pa_memblock_unref(chunk.memblock);
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}
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static void time_callback(pa_mainloop_api*a, pa_time_event* e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
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struct userdata *u = userdata;
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struct timeval n;
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assert(u && a && u->time_event == e);
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adjust_rates(u);
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pa_gettimeofday(&n);
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n.tv_sec += u->adjust_time;
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u->sink->core->mainloop->time_restart(e, &n);
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}
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static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
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struct output *o = i->userdata;
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assert(i && o && o->sink_input && chunk);
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if (pa_memblockq_peek(o->memblockq, chunk) >= 0)
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return 0;
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/* Try harder */
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request_memblock(o->userdata);
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return pa_memblockq_peek(o->memblockq, chunk);
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}
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static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) {
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struct output *o = i->userdata;
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assert(i && o && o->sink_input && chunk && length);
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pa_memblockq_drop(o->memblockq, chunk, length);
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o->counter += length;
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}
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static void sink_input_kill_cb(pa_sink_input *i) {
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struct output *o = i->userdata;
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assert(i && o && o->sink_input);
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pa_module_unload_request(o->userdata->module);
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clear_up(o->userdata);
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}
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static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) {
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struct output *o = i->userdata;
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assert(i && o && o->sink_input);
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return pa_bytes_to_usec(pa_memblockq_get_length(o->memblockq), &i->sample_spec);
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}
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static pa_usec_t sink_get_latency_cb(pa_sink *s) {
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struct userdata *u = s->userdata;
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assert(s && u && u->sink && u->master);
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return pa_sink_input_get_latency(u->master->sink_input);
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}
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static struct output *output_new(struct userdata *u, pa_sink *sink, int resample_method) {
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struct output *o = NULL;
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char t[256];
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assert(u && sink && u->sink);
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o = pa_xmalloc(sizeof(struct output));
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o->userdata = u;
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o->counter = 0;
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o->memblockq = pa_memblockq_new(MEMBLOCKQ_MAXLENGTH, MEMBLOCKQ_MAXLENGTH, pa_frame_size(&u->sink->sample_spec), 0, 0, sink->core->memblock_stat);
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snprintf(t, sizeof(t), "%s: output #%u", u->sink->name, u->n_outputs+1);
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if (!(o->sink_input = pa_sink_input_new(sink, __FILE__, t, &u->sink->sample_spec, &u->sink->channel_map, 1, resample_method)))
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goto fail;
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o->sink_input->get_latency = sink_input_get_latency_cb;
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o->sink_input->peek = sink_input_peek_cb;
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o->sink_input->drop = sink_input_drop_cb;
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o->sink_input->kill = sink_input_kill_cb;
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o->sink_input->userdata = o;
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o->sink_input->owner = u->module;
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PA_LLIST_PREPEND(struct output, u->outputs, o);
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u->n_outputs++;
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return o;
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fail:
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if (o) {
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if (o->sink_input) {
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pa_sink_input_disconnect(o->sink_input);
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pa_sink_input_unref(o->sink_input);
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}
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if (o->memblockq)
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pa_memblockq_free(o->memblockq);
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pa_xfree(o);
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}
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return NULL;
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}
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static void output_free(struct output *o) {
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assert(o);
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PA_LLIST_REMOVE(struct output, o->userdata->outputs, o);
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o->userdata->n_outputs--;
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pa_memblockq_free(o->memblockq);
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pa_sink_input_disconnect(o->sink_input);
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pa_sink_input_unref(o->sink_input);
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pa_xfree(o);
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}
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static void clear_up(struct userdata *u) {
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struct output *o;
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assert(u);
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if (u->time_event) {
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u->core->mainloop->time_free(u->time_event);
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u->time_event = NULL;
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}
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while ((o = u->outputs))
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output_free(o);
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u->master = NULL;
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if (u->sink) {
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pa_sink_disconnect(u->sink);
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pa_sink_unref(u->sink);
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u->sink = NULL;
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}
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}
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int pa__init(pa_core *c, pa_module*m) {
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struct userdata *u;
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pa_modargs *ma = NULL;
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const char *master_name, *slaves, *rm;
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pa_sink *master_sink;
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char *n = NULL;
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const char*split_state;
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struct timeval tv;
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int resample_method = -1;
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assert(c && m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log(__FILE__": failed to parse module arguments\n");
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goto fail;
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}
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if ((rm = pa_modargs_get_value(ma, "resample_method", NULL))) {
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if ((resample_method = pa_parse_resample_method(rm)) < 0) {
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pa_log(__FILE__": invalid resample method '%s'\n", rm);
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goto fail;
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}
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}
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u = pa_xmalloc(sizeof(struct userdata));
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m->userdata = u;
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u->sink = NULL;
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u->n_outputs = 0;
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u->master = NULL;
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u->module = m;
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u->core = c;
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u->time_event = NULL;
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u->adjust_time = DEFAULT_ADJUST_TIME;
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PA_LLIST_HEAD_INIT(struct output, u->outputs);
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if (pa_modargs_get_value_u32(ma, "adjust_time", &u->adjust_time) < 0) {
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pa_log(__FILE__": failed to parse adjust_time value\n");
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goto fail;
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}
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if (!(master_name = pa_modargs_get_value(ma, "master", NULL)) || !(slaves = pa_modargs_get_value(ma, "slaves", NULL))) {
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pa_log(__FILE__": no master or slave sinks specified\n");
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goto fail;
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}
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if (!(master_sink = pa_namereg_get(c, master_name, PA_NAMEREG_SINK, 1))) {
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pa_log(__FILE__": invalid master sink '%s'\n", master_name);
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goto fail;
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}
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if (!(u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &master_sink->sample_spec, &master_sink->channel_map))) {
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pa_log(__FILE__": failed to create sink\n");
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goto fail;
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}
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pa_sink_set_owner(u->sink, m);
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u->sink->description = pa_sprintf_malloc("Combined sink");
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u->sink->get_latency = sink_get_latency_cb;
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u->sink->userdata = u;
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if (!(u->master = output_new(u, master_sink, resample_method))) {
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pa_log(__FILE__": failed to create master sink input on sink '%s'.\n", u->sink->name);
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goto fail;
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}
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split_state = NULL;
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while ((n = pa_split(slaves, ",", &split_state))) {
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pa_sink *slave_sink;
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if (!(slave_sink = pa_namereg_get(c, n, PA_NAMEREG_SINK, 1))) {
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pa_log(__FILE__": invalid slave sink '%s'\n", n);
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goto fail;
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}
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pa_xfree(n);
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if (!output_new(u, slave_sink, resample_method)) {
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pa_log(__FILE__": failed to create slave sink input on sink '%s'.\n", slave_sink->name);
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goto fail;
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}
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}
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if (u->n_outputs <= 1)
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pa_log_warn(__FILE__": WARNING: no slave sinks specified.\n");
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if (u->adjust_time > 0) {
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pa_gettimeofday(&tv);
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tv.tv_sec += u->adjust_time;
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u->time_event = c->mainloop->time_new(c->mainloop, &tv, time_callback, u);
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}
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pa_modargs_free(ma);
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return 0;
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fail:
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pa_xfree(n);
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|
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if (ma)
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pa_modargs_free(ma);
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|
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pa__done(c, m);
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return -1;
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}
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|
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void pa__done(pa_core *c, pa_module*m) {
|
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struct userdata *u;
|
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assert(c && m);
|
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|
||||
if (!(u = m->userdata))
|
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return;
|
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|
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clear_up(u);
|
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pa_xfree(u);
|
||||
}
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||||
|
||||
|
||||
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