mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-10-29 05:40:23 -04:00
modules: add module-remap-source
This commit is contained in:
Stefan Huber
Tanu Kaskinen
parent
544d01721e
commit
b5226992d4
2 changed files with 441 additions and 0 deletions
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@ -1074,6 +1074,7 @@ modlibexec_LTLIBRARIES += \
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module-combine.la \
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module-combine-sink.la \
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module-remap-sink.la \
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module-remap-source.la \
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module-ladspa-sink.la \
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module-tunnel-sink.la \
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module-tunnel-source.la \
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@ -1339,6 +1340,7 @@ SYMDEF_FILES = \
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module-combine-symdef.h \
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module-combine-sink-symdef.h \
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module-remap-sink-symdef.h \
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module-remap-source-symdef.h \
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module-ladspa-sink-symdef.h \
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module-equalizer-sink-symdef.h \
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module-match-symdef.h \
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@ -1589,6 +1591,10 @@ module_remap_sink_la_SOURCES = modules/module-remap-sink.c
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module_remap_sink_la_LDFLAGS = $(MODULE_LDFLAGS)
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module_remap_sink_la_LIBADD = $(MODULE_LIBADD)
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module_remap_source_la_SOURCES = modules/module-remap-source.c
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module_remap_source_la_LDFLAGS = $(MODULE_LDFLAGS)
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module_remap_source_la_LIBADD = $(MODULE_LIBADD)
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module_ladspa_sink_la_SOURCES = modules/module-ladspa-sink.c modules/ladspa.h
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module_ladspa_sink_la_CFLAGS = -DLADSPA_PATH=\"$(libdir)/ladspa:/usr/local/lib/ladspa:/usr/lib/ladspa:/usr/local/lib64/ladspa:/usr/lib64/ladspa\" $(AM_CFLAGS)
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module_ladspa_sink_la_LDFLAGS = $(MODULE_LDFLAGS)
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435
src/modules/module-remap-source.c
Normal file
435
src/modules/module-remap-source.c
Normal file
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@ -0,0 +1,435 @@
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/***
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This file is part of PulseAudio.
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Copyright 2013 bct electronic GmbH
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Contributor: Stefan Huber <s.huber@bct-electronic.com>
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PulseAudio 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 2.1 of the License,
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or (at your option) any later version.
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PulseAudio 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 PulseAudio; 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 <stdio.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/i18n.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/namereg.h>
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#include <pulsecore/module.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/modargs.h>
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#include <pulsecore/log.h>
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#include <pulsecore/rtpoll.h>
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#include <pulsecore/sample-util.h>
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#include <pulsecore/ltdl-helper.h>
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#include <pulsecore/mix.h>
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#include "module-remap-source-symdef.h"
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PA_MODULE_AUTHOR("Stefan Huber");
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PA_MODULE_DESCRIPTION("Virtual channel remapping source");
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PA_MODULE_VERSION(PACKAGE_VERSION);
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PA_MODULE_LOAD_ONCE(false);
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PA_MODULE_USAGE(
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"source_name=<name for the source> "
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"source_properties=<properties for the source> "
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"master=<name of source to filter> "
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"master_channel_map=<channel map> "
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"format=<sample format> "
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"rate=<sample rate> "
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"channels=<number of channels> "
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"channel_map=<channel map> "
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"remix=<remix channels?>");
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struct userdata {
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pa_module *module;
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pa_source *source;
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pa_source_output *source_output;
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bool auto_desc;
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};
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static const char* const valid_modargs[] = {
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"source_name",
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"source_properties",
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"master",
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"master_channel_map",
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"format",
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"rate",
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"channels",
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"channel_map",
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"remix",
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NULL
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};
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/* Called from I/O thread context */
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static int source_process_msg_cb(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
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struct userdata *u = PA_SOURCE(o)->userdata;
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switch (code) {
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case PA_SOURCE_MESSAGE_GET_LATENCY:
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/* The source is _put() before the source output is, so let's
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* make sure we don't access it in that time. Also, the
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* source output is first shut down, the source second. */
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if (!PA_SOURCE_IS_LINKED(u->source->thread_info.state) ||
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!PA_SOURCE_OUTPUT_IS_LINKED(u->source_output->thread_info.state)) {
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*((pa_usec_t*) data) = 0;
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return 0;
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}
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*((pa_usec_t*) data) =
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/* Get the latency of the master source */
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pa_source_get_latency_within_thread(u->source_output->source) +
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/* Add the latency internal to our source output on top */
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pa_bytes_to_usec(pa_memblockq_get_length(u->source_output->thread_info.delay_memblockq), &u->source_output->source->sample_spec);
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return 0;
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}
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return pa_source_process_msg(o, code, data, offset, chunk);
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}
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/* Called from main context */
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static int source_set_state_cb(pa_source *s, pa_source_state_t state) {
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struct userdata *u;
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pa_source_assert_ref(s);
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pa_assert_se(u = s->userdata);
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if (!PA_SOURCE_IS_LINKED(state) ||
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!PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output)))
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return 0;
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pa_source_output_cork(u->source_output, state == PA_SOURCE_SUSPENDED);
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return 0;
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}
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/* Called from I/O thread context */
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static void source_update_requested_latency_cb(pa_source *s) {
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struct userdata *u;
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pa_source_assert_ref(s);
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pa_assert_se(u = s->userdata);
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if (!PA_SOURCE_IS_LINKED(u->source->thread_info.state) ||
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!PA_SOURCE_OUTPUT_IS_LINKED(u->source_output->thread_info.state))
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return;
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pa_log_debug("Source update requested latency.");
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/* Just hand this one over to the master source */
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pa_source_output_set_requested_latency_within_thread(
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u->source_output,
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pa_source_get_requested_latency_within_thread(s));
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}
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/* Called from output thread context */
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static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_source_output_assert_io_context(o);
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pa_assert_se(u = o->userdata);
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if (!PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_get_state(u->source_output))) {
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pa_log("push when no link?");
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return;
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}
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pa_source_post(u->source, chunk);
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}
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/* Called from output thread context */
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static void source_output_process_rewind_cb(pa_source_output *o, size_t nbytes) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_source_output_assert_io_context(o);
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pa_assert_se(u = o->userdata);
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pa_source_process_rewind(u->source, nbytes);
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}
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/* Called from output thread context */
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static void source_output_detach_cb(pa_source_output *o) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_source_output_assert_io_context(o);
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pa_assert_se(u = o->userdata);
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pa_source_detach_within_thread(u->source);
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pa_source_set_rtpoll(u->source, NULL);
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}
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/* Called from output thread context */
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static void source_output_attach_cb(pa_source_output *o) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_source_output_assert_io_context(o);
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pa_assert_se(u = o->userdata);
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pa_source_set_rtpoll(u->source, o->source->thread_info.rtpoll);
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pa_source_set_latency_range_within_thread(u->source, o->source->thread_info.min_latency, o->source->thread_info.max_latency);
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pa_source_set_fixed_latency_within_thread(u->source, o->source->thread_info.fixed_latency);
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pa_source_set_max_rewind_within_thread(u->source, pa_source_output_get_max_rewind(o));
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pa_source_attach_within_thread(u->source);
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}
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/* Called from main thread */
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static void source_output_kill_cb(pa_source_output *o) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_assert_ctl_context();
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pa_assert_se(u = o->userdata);
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/* The order here matters! We first kill the source output, followed
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* by the source. That means the source callbacks must be protected
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* against an unconnected source output! */
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pa_source_output_unlink(u->source_output);
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pa_source_unlink(u->source);
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pa_source_output_unref(u->source_output);
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u->source_output = NULL;
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pa_source_unref(u->source);
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u->source = NULL;
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pa_module_unload_request(u->module, true);
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}
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/* Called from output thread context */
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static void source_output_state_change_cb(pa_source_output *o, pa_source_output_state_t state) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_source_output_assert_io_context(o);
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pa_assert_se(u = o->userdata);
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pa_log_debug("Source output %d state %d.", o->index, state);
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}
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/* Called from main thread */
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static void source_output_moving_cb(pa_source_output *o, pa_source *dest) {
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struct userdata *u;
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pa_source_output_assert_ref(o);
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pa_assert_ctl_context();
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pa_assert_se(u = o->userdata);
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if (dest) {
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pa_source_set_asyncmsgq(u->source, dest->asyncmsgq);
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pa_source_update_flags(u->source, PA_SOURCE_LATENCY|PA_SOURCE_DYNAMIC_LATENCY, dest->flags);
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} else
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pa_source_set_asyncmsgq(u->source, NULL);
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if (u->auto_desc && dest) {
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const char *k;
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pa_proplist *pl;
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pl = pa_proplist_new();
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k = pa_proplist_gets(dest->proplist, PA_PROP_DEVICE_DESCRIPTION);
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pa_proplist_setf(pl, PA_PROP_DEVICE_DESCRIPTION, "Remapped %s", k ? k : dest->name);
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pa_source_update_proplist(u->source, PA_UPDATE_REPLACE, pl);
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pa_proplist_free(pl);
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}
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}
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int pa__init(pa_module*m) {
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struct userdata *u;
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pa_sample_spec ss;
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pa_channel_map source_map, stream_map;
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pa_modargs *ma;
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pa_source *master;
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pa_source_output_new_data source_output_data;
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pa_source_new_data source_data;
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bool remix = true;
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pa_assert(m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log("Failed to parse module arguments.");
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goto fail;
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}
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if (!(master = pa_namereg_get(m->core, pa_modargs_get_value(ma, "master", NULL), PA_NAMEREG_SOURCE))) {
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pa_log("Master source not found.");
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goto fail;
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}
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ss = master->sample_spec;
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source_map = master->channel_map;
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if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &source_map, PA_CHANNEL_MAP_DEFAULT) < 0) {
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pa_log("Invalid sample format specification or channel map.");
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goto fail;
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}
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stream_map = source_map;
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if (pa_modargs_get_channel_map(ma, "master_channel_map", &stream_map) < 0) {
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pa_log("Invalid master channel map.");
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goto fail;
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}
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if (stream_map.channels != ss.channels) {
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pa_log("Number of channels doesn't match.");
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goto fail;
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}
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if (pa_channel_map_equal(&stream_map, &master->channel_map))
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pa_log_warn("No remapping configured, proceeding nonetheless!");
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if (pa_modargs_get_value_boolean(ma, "remix", &remix) < 0) {
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pa_log("Invalid boolean remix parameter.");
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goto fail;
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}
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u = pa_xnew0(struct userdata, 1);
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u->module = m;
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m->userdata = u;
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/* Create source */
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pa_source_new_data_init(&source_data);
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source_data.driver = __FILE__;
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source_data.module = m;
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if (!(source_data.name = pa_xstrdup(pa_modargs_get_value(ma, "source_name", NULL))))
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source_data.name = pa_sprintf_malloc("%s.remapped", master->name);
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pa_source_new_data_set_sample_spec(&source_data, &ss);
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pa_source_new_data_set_channel_map(&source_data, &source_map);
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pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_MASTER_DEVICE, master->name);
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pa_proplist_sets(source_data.proplist, PA_PROP_DEVICE_CLASS, "filter");
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if (pa_modargs_get_proplist(ma, "source_properties", source_data.proplist, PA_UPDATE_REPLACE) < 0) {
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pa_log("Invalid properties.");
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pa_source_new_data_done(&source_data);
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goto fail;
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}
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if ((u->auto_desc = !pa_proplist_contains(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION))) {
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const char *k;
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k = pa_proplist_gets(master->proplist, PA_PROP_DEVICE_DESCRIPTION);
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pa_proplist_setf(source_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Remapped %s", k ? k : master->name);
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}
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u->source = pa_source_new(m->core, &source_data, master->flags & (PA_SOURCE_LATENCY|PA_SOURCE_DYNAMIC_LATENCY));
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pa_source_new_data_done(&source_data);
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if (!u->source) {
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pa_log("Failed to create source.");
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goto fail;
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}
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u->source->parent.process_msg = source_process_msg_cb;
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u->source->set_state = source_set_state_cb;
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u->source->update_requested_latency = source_update_requested_latency_cb;
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u->source->userdata = u;
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pa_source_set_asyncmsgq(u->source, master->asyncmsgq);
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/* Create source output */
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pa_source_output_new_data_init(&source_output_data);
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source_output_data.driver = __FILE__;
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source_output_data.module = m;
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pa_source_output_new_data_set_source(&source_output_data, master, false);
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source_output_data.destination_source = u->source;
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pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_NAME, "Remapped Stream");
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pa_proplist_sets(source_output_data.proplist, PA_PROP_MEDIA_ROLE, "filter");
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pa_source_output_new_data_set_sample_spec(&source_output_data, &ss);
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pa_source_output_new_data_set_channel_map(&source_output_data, &stream_map);
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source_output_data.flags = remix ? 0 : PA_SOURCE_OUTPUT_NO_REMIX;
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pa_source_output_new(&u->source_output, m->core, &source_output_data);
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pa_source_output_new_data_done(&source_output_data);
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if (!u->source_output)
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goto fail;
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u->source_output->push = source_output_push_cb;
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u->source_output->process_rewind = source_output_process_rewind_cb;
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u->source_output->kill = source_output_kill_cb;
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u->source_output->attach = source_output_attach_cb;
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u->source_output->detach = source_output_detach_cb;
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u->source_output->state_change = source_output_state_change_cb;
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u->source_output->moving = source_output_moving_cb;
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u->source_output->userdata = u;
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u->source->output_from_master = u->source_output;
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pa_source_put(u->source);
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pa_source_output_put(u->source_output);
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pa_modargs_free(ma);
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return 0;
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fail:
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if (ma)
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pa_modargs_free(ma);
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||||
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pa__done(m);
|
||||
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||||
return -1;
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||||
}
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||||
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||||
int pa__get_n_used(pa_module *m) {
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||||
struct userdata *u;
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||||
|
||||
pa_assert(m);
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||||
pa_assert_se(u = m->userdata);
|
||||
|
||||
return pa_source_linked_by(u->source);
|
||||
}
|
||||
|
||||
void pa__done(pa_module*m) {
|
||||
struct userdata *u;
|
||||
|
||||
pa_assert(m);
|
||||
|
||||
if (!(u = m->userdata))
|
||||
return;
|
||||
|
||||
/* See comments in source_output_kill_cb() above regarding
|
||||
* destruction order! */
|
||||
|
||||
if (u->source_output)
|
||||
pa_source_output_unlink(u->source_output);
|
||||
|
||||
if (u->source)
|
||||
pa_source_unlink(u->source);
|
||||
|
||||
if (u->source_output)
|
||||
pa_source_output_unref(u->source_output);
|
||||
|
||||
if (u->source)
|
||||
pa_source_unref(u->source);
|
||||
|
||||
pa_xfree(u);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue