mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2008 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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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, see <http://www.gnu.org/licenses/>.
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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 <asoundlib.h>
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#ifdef HAVE_VALGRIND_MEMCHECK_H
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#include <valgrind/memcheck.h>
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#endif
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#include <pulsecore/module.h>
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#include <pulsecore/modargs.h>
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#include <pulsecore/log.h>
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#include <pulsecore/macro.h>
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#include "alsa-util.h"
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#include "alsa-source.h"
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#include "module-alsa-source-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering");
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PA_MODULE_DESCRIPTION("ALSA 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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"name=<name for the source, to be prefixed> "
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"source_name=<name for the source> "
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"source_properties=<properties for the source> "
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"namereg_fail=<when false attempt to synthesise new source_name if it is already taken> "
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"device=<ALSA device> "
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"device_id=<ALSA card index> "
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"format=<sample format> "
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"rate=<sample rate> "
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"alternate_rate=<alternate sample rate> "
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"channels=<number of channels> "
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"channel_map=<channel map> "
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"fragments=<number of fragments> "
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"fragment_size=<fragment size> "
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"mmap=<enable memory mapping?> "
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"tsched=<enable system timer based scheduling mode?> "
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"tsched_buffer_size=<buffer size when using timer based scheduling> "
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"tsched_buffer_watermark=<upper fill watermark> "
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"ignore_dB=<ignore dB information from the device?> "
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"control=<name of mixer control>"
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"deferred_volume=<Synchronize software and hardware volume changes to avoid momentary jumps?> "
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"deferred_volume_safety_margin=<usec adjustment depending on volume direction> "
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"deferred_volume_extra_delay=<usec adjustment to HW volume changes> "
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"fixed_latency_range=<disable latency range changes on overrun?>");
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static const char* const valid_modargs[] = {
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"name",
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"source_name",
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"source_properties",
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"namereg_fail",
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"device",
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"device_id",
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"format",
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"rate",
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"alternate_rate",
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"channels",
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"channel_map",
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"fragments",
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"fragment_size",
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"mmap",
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"tsched",
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"tsched_buffer_size",
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"tsched_buffer_watermark",
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"ignore_dB",
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"control",
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"deferred_volume",
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"deferred_volume_safety_margin",
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"deferred_volume_extra_delay",
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"fixed_latency_range",
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NULL
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};
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int pa__init(pa_module*m) {
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pa_modargs *ma = NULL;
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pa_assert(m);
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pa_alsa_refcnt_inc();
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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 (!(m->userdata = pa_alsa_source_new(m, ma, __FILE__, NULL, NULL)))
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goto fail;
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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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pa__done(m);
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return -1;
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}
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int pa__get_n_used(pa_module *m) {
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pa_source *source;
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pa_assert(m);
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pa_assert_se(source = m->userdata);
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return pa_source_linked_by(source);
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}
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void pa__done(pa_module*m) {
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pa_source *source;
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pa_assert(m);
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if ((source = m->userdata))
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pa_alsa_source_free(source);
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pa_alsa_refcnt_dec();
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}
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