2014-01-27 08:20:25 +01:00
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/*
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* Copyright (C) 2003-2014 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "MultipleOutputs.hxx"
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#include "PlayerControl.hxx"
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2014-01-28 11:42:54 +01:00
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#include "Internal.hxx"
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#include "Domain.hxx"
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2014-01-27 08:20:25 +01:00
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#include "MusicBuffer.hxx"
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#include "MusicPipe.hxx"
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#include "MusicChunk.hxx"
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#include "system/FatalError.hxx"
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#include "util/Error.hxx"
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#include "config/ConfigData.hxx"
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#include "config/ConfigGlobal.hxx"
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#include "config/ConfigOption.hxx"
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#include "notify.hxx"
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#include <assert.h>
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#include <string.h>
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2014-02-05 23:20:33 +01:00
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MultipleOutputs::MultipleOutputs(MixerListener &_mixer_listener)
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:mixer_listener(_mixer_listener),
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2014-03-09 19:40:56 +01:00
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input_audio_format(AudioFormat::Undefined()),
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2014-02-05 23:20:33 +01:00
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buffer(nullptr), pipe(nullptr),
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2014-01-27 08:20:25 +01:00
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elapsed_time(-1)
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{
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}
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MultipleOutputs::~MultipleOutputs()
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{
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for (auto i : outputs) {
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2014-01-28 11:39:12 +01:00
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i->LockDisableWait();
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i->Finish();
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2014-01-27 08:20:25 +01:00
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}
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}
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2014-01-28 11:34:09 +01:00
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static AudioOutput *
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2014-02-05 23:20:33 +01:00
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LoadOutput(EventLoop &event_loop, MixerListener &mixer_listener,
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PlayerControl &pc, const config_param ¶m)
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2014-01-27 08:20:25 +01:00
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{
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Error error;
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2014-02-05 23:20:33 +01:00
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AudioOutput *output = audio_output_new(event_loop, param,
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mixer_listener,
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pc, error);
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2014-01-27 08:20:25 +01:00
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if (output == nullptr) {
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if (param.line > 0)
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FormatFatalError("line %i: %s",
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param.line,
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error.GetMessage());
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else
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FatalError(error);
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}
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return output;
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}
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void
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2014-02-05 00:02:02 +01:00
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MultipleOutputs::Configure(EventLoop &event_loop, PlayerControl &pc)
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2014-01-27 08:20:25 +01:00
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{
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2014-02-19 23:57:55 +01:00
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for (const config_param *param = config_get_param(CONF_AUDIO_OUTPUT);
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param != nullptr; param = param->next) {
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2014-02-05 23:20:33 +01:00
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auto output = LoadOutput(event_loop, mixer_listener,
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pc, *param);
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2014-01-27 08:20:25 +01:00
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if (FindByName(output->name) != nullptr)
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FormatFatalError("output devices with identical "
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"names: %s", output->name);
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outputs.push_back(output);
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}
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if (outputs.empty()) {
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/* auto-detect device */
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const config_param empty;
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2014-02-05 23:20:33 +01:00
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auto output = LoadOutput(event_loop, mixer_listener,
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pc, empty);
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2014-01-27 08:20:25 +01:00
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outputs.push_back(output);
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}
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}
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2014-01-28 11:34:09 +01:00
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AudioOutput *
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2014-01-27 08:20:25 +01:00
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MultipleOutputs::FindByName(const char *name) const
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{
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for (auto i : outputs)
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if (strcmp(i->name, name) == 0)
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return i;
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return nullptr;
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}
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void
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MultipleOutputs::EnableDisable()
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{
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for (auto ao : outputs) {
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bool enabled;
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ao->mutex.lock();
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enabled = ao->really_enabled;
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ao->mutex.unlock();
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if (ao->enabled != enabled) {
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if (ao->enabled)
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2014-01-28 11:39:12 +01:00
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ao->LockEnableWait();
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2014-01-27 08:20:25 +01:00
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else
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2014-01-28 11:39:12 +01:00
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ao->LockDisableWait();
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2014-01-27 08:20:25 +01:00
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}
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}
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}
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bool
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MultipleOutputs::AllFinished() const
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{
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for (auto ao : outputs) {
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const ScopeLock protect(ao->mutex);
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2014-01-28 11:39:12 +01:00
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if (ao->IsOpen() && !ao->IsCommandFinished())
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2014-01-27 08:20:25 +01:00
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return false;
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}
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return true;
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}
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void
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MultipleOutputs::WaitAll()
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{
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while (!AllFinished())
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audio_output_client_notify.Wait();
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}
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void
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MultipleOutputs::AllowPlay()
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{
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for (auto ao : outputs)
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2014-01-28 11:39:12 +01:00
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ao->LockAllowPlay();
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2014-01-27 08:20:25 +01:00
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}
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static void
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2014-01-28 11:34:09 +01:00
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audio_output_reset_reopen(AudioOutput *ao)
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2014-01-27 08:20:25 +01:00
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{
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const ScopeLock protect(ao->mutex);
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ao->fail_timer.Reset();
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}
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void
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MultipleOutputs::ResetReopen()
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{
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for (auto ao : outputs)
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audio_output_reset_reopen(ao);
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}
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bool
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MultipleOutputs::Update()
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{
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bool ret = false;
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if (!input_audio_format.IsDefined())
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return false;
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for (auto ao : outputs)
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2014-01-28 11:39:12 +01:00
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ret = ao->LockUpdate(input_audio_format, *pipe)
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2014-01-27 08:20:25 +01:00
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|| ret;
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return ret;
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}
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void
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MultipleOutputs::SetReplayGainMode(ReplayGainMode mode)
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{
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for (auto ao : outputs)
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2014-01-28 11:39:12 +01:00
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ao->SetReplayGainMode(mode);
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2014-01-27 08:20:25 +01:00
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}
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bool
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MultipleOutputs::Play(music_chunk *chunk, Error &error)
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{
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assert(buffer != nullptr);
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assert(pipe != nullptr);
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assert(chunk != nullptr);
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assert(chunk->CheckFormat(input_audio_format));
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if (!Update()) {
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/* TODO: obtain real error */
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error.Set(output_domain, "Failed to open audio output");
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return false;
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}
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pipe->Push(chunk);
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for (auto ao : outputs)
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2014-01-28 11:39:12 +01:00
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ao->LockPlay();
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2014-01-27 08:20:25 +01:00
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return true;
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}
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bool
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MultipleOutputs::Open(const AudioFormat audio_format,
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MusicBuffer &_buffer,
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Error &error)
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{
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bool ret = false, enabled = false;
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assert(buffer == nullptr || buffer == &_buffer);
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assert((pipe == nullptr) == (buffer == nullptr));
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buffer = &_buffer;
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/* the audio format must be the same as existing chunks in the
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pipe */
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assert(pipe == nullptr || pipe->CheckFormat(audio_format));
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if (pipe == nullptr)
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pipe = new MusicPipe();
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else
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/* if the pipe hasn't been cleared, the the audio
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format must not have changed */
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assert(pipe->IsEmpty() || audio_format == input_audio_format);
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input_audio_format = audio_format;
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ResetReopen();
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EnableDisable();
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Update();
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for (auto ao : outputs) {
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if (ao->enabled)
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enabled = true;
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if (ao->open)
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ret = true;
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}
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if (!enabled)
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error.Set(output_domain, "All audio outputs are disabled");
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else if (!ret)
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/* TODO: obtain real error */
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error.Set(output_domain, "Failed to open audio output");
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if (!ret)
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/* close all devices if there was an error */
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Close();
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return ret;
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}
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/**
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* Has the specified audio output already consumed this chunk?
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*/
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gcc_pure
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static bool
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2014-01-28 11:34:09 +01:00
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chunk_is_consumed_in(const AudioOutput *ao,
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2014-01-27 08:20:25 +01:00
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gcc_unused const MusicPipe *pipe,
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const struct music_chunk *chunk)
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{
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if (!ao->open)
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return true;
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2014-01-29 09:23:57 +01:00
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if (ao->current_chunk == nullptr)
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2014-01-27 08:20:25 +01:00
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return false;
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2014-01-29 09:23:57 +01:00
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assert(chunk == ao->current_chunk ||
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pipe->Contains(ao->current_chunk));
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2014-01-27 08:20:25 +01:00
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2014-01-29 09:23:57 +01:00
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if (chunk != ao->current_chunk) {
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2014-01-27 08:20:25 +01:00
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assert(chunk->next != nullptr);
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return true;
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}
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2014-01-29 09:23:57 +01:00
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return ao->current_chunk_finished && chunk->next == nullptr;
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2014-01-27 08:20:25 +01:00
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}
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bool
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MultipleOutputs::IsChunkConsumed(const music_chunk *chunk) const
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{
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for (auto ao : outputs) {
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const ScopeLock protect(ao->mutex);
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if (!chunk_is_consumed_in(ao, pipe, chunk))
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return false;
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}
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return true;
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}
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inline void
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MultipleOutputs::ClearTailChunk(gcc_unused const struct music_chunk *chunk,
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bool *locked)
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{
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assert(chunk->next == nullptr);
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assert(pipe->Contains(chunk));
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for (unsigned i = 0, n = outputs.size(); i != n; ++i) {
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2014-01-28 11:34:09 +01:00
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AudioOutput *ao = outputs[i];
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2014-01-27 08:20:25 +01:00
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/* this mutex will be unlocked by the caller when it's
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ready */
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ao->mutex.lock();
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locked[i] = ao->open;
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if (!locked[i]) {
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ao->mutex.unlock();
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continue;
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}
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2014-01-29 09:23:57 +01:00
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assert(ao->current_chunk == chunk);
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assert(ao->current_chunk_finished);
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ao->current_chunk = nullptr;
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2014-01-27 08:20:25 +01:00
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}
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}
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unsigned
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MultipleOutputs::Check()
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{
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const struct music_chunk *chunk;
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bool is_tail;
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struct music_chunk *shifted;
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bool locked[outputs.size()];
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assert(buffer != nullptr);
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assert(pipe != nullptr);
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while ((chunk = pipe->Peek()) != nullptr) {
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assert(!pipe->IsEmpty());
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if (!IsChunkConsumed(chunk))
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/* at least one output is not finished playing
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this chunk */
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return pipe->GetSize();
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if (chunk->length > 0 && chunk->times >= 0.0)
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/* only update elapsed_time if the chunk
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provides a defined value */
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elapsed_time = chunk->times;
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is_tail = chunk->next == nullptr;
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if (is_tail)
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/* this is the tail of the pipe - clear the
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chunk reference in all outputs */
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ClearTailChunk(chunk, locked);
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/* remove the chunk from the pipe */
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shifted = pipe->Shift();
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assert(shifted == chunk);
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if (is_tail)
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/* unlock all audio outputs which were locked
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by clear_tail_chunk() */
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for (unsigned i = 0, n = outputs.size(); i != n; ++i)
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if (locked[i])
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outputs[i]->mutex.unlock();
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/* return the chunk to the buffer */
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buffer->Return(shifted);
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}
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return 0;
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}
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bool
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MultipleOutputs::Wait(PlayerControl &pc, unsigned threshold)
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{
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pc.Lock();
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if (Check() < threshold) {
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pc.Unlock();
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return true;
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}
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pc.Wait();
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pc.Unlock();
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|
|
|
return Check() < threshold;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::Pause()
|
|
|
|
{
|
|
|
|
Update();
|
|
|
|
|
|
|
|
for (auto ao : outputs)
|
2014-01-28 11:39:12 +01:00
|
|
|
ao->LockPauseAsync();
|
2014-01-27 08:20:25 +01:00
|
|
|
|
|
|
|
WaitAll();
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::Drain()
|
|
|
|
{
|
|
|
|
for (auto ao : outputs)
|
2014-01-28 11:39:12 +01:00
|
|
|
ao->LockDrainAsync();
|
2014-01-27 08:20:25 +01:00
|
|
|
|
|
|
|
WaitAll();
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::Cancel()
|
|
|
|
{
|
|
|
|
/* send the cancel() command to all audio outputs */
|
|
|
|
|
|
|
|
for (auto ao : outputs)
|
2014-01-28 11:39:12 +01:00
|
|
|
ao->LockCancelAsync();
|
2014-01-27 08:20:25 +01:00
|
|
|
|
|
|
|
WaitAll();
|
|
|
|
|
|
|
|
/* clear the music pipe and return all chunks to the buffer */
|
|
|
|
|
|
|
|
if (pipe != nullptr)
|
|
|
|
pipe->Clear(*buffer);
|
|
|
|
|
|
|
|
/* the audio outputs are now waiting for a signal, to
|
|
|
|
synchronize the cleared music pipe */
|
|
|
|
|
|
|
|
AllowPlay();
|
|
|
|
|
|
|
|
/* invalidate elapsed_time */
|
|
|
|
|
|
|
|
elapsed_time = -1.0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::Close()
|
|
|
|
{
|
|
|
|
for (auto ao : outputs)
|
2014-01-28 11:39:12 +01:00
|
|
|
ao->LockCloseWait();
|
2014-01-27 08:20:25 +01:00
|
|
|
|
|
|
|
if (pipe != nullptr) {
|
|
|
|
assert(buffer != nullptr);
|
|
|
|
|
|
|
|
pipe->Clear(*buffer);
|
|
|
|
delete pipe;
|
|
|
|
pipe = nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
buffer = nullptr;
|
|
|
|
|
|
|
|
input_audio_format.Clear();
|
|
|
|
|
|
|
|
elapsed_time = -1.0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::Release()
|
|
|
|
{
|
|
|
|
for (auto ao : outputs)
|
2014-01-28 11:39:12 +01:00
|
|
|
ao->LockRelease();
|
2014-01-27 08:20:25 +01:00
|
|
|
|
|
|
|
if (pipe != nullptr) {
|
|
|
|
assert(buffer != nullptr);
|
|
|
|
|
|
|
|
pipe->Clear(*buffer);
|
|
|
|
delete pipe;
|
|
|
|
pipe = nullptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
buffer = nullptr;
|
|
|
|
|
|
|
|
input_audio_format.Clear();
|
|
|
|
|
|
|
|
elapsed_time = -1.0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
MultipleOutputs::SongBorder()
|
|
|
|
{
|
|
|
|
/* clear the elapsed_time pointer at the beginning of a new
|
|
|
|
song */
|
|
|
|
elapsed_time = 0.0;
|
|
|
|
}
|