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output/init: use the real-time I/O thread only for the ALSA plugin

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This commit is contained in:
Max Kellermann 2021-02-24 16:06:06 +01:00
parent 29b49dd630
commit 2efa142ec9
5 changed files with 21 additions and 10 deletions
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3
src/Main.cxx
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@ -441,7 +441,8 @@ MainConfigured(const struct options &options, const ConfigData &raw_config)
command_init();
for (auto &partition : instance.partitions) {
partition.outputs.Configure(instance.rtio_thread.GetEventLoop(),
partition.outputs.Configure(instance.io_thread.GetEventLoop(),
instance.rtio_thread.GetEventLoop(),
raw_config,
config.replay_gain);
partition.UpdateEffectiveReplayGainMode();

2
src/output/Filtered.hxx
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@ -239,7 +239,7 @@ public:
* Throws on error.
*/
std::unique_ptr<FilteredAudioOutput>
audio_output_new(EventLoop &event_loop,
audio_output_new(EventLoop &event_loop, EventLoop &rt_event_loop,
const ReplayGainConfig &replay_gain_config,
const ConfigBlock &block,
const AudioOutputDefaults &defaults,

10
src/output/Init.cxx
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@ -264,7 +264,7 @@ FilteredAudioOutput::Setup(EventLoop &event_loop,
}
std::unique_ptr<FilteredAudioOutput>
audio_output_new(EventLoop &event_loop,
audio_output_new(EventLoop &normal_event_loop, EventLoop &rt_event_loop,
const ReplayGainConfig &replay_gain_config,
const ConfigBlock &block,
const AudioOutputDefaults &defaults,
@ -294,6 +294,14 @@ audio_output_new(EventLoop &event_loop,
plugin->name);
}
/* use the real-time I/O thread only for the ALSA plugin;
other plugins like httpd don't need real-time so badly,
because they have larger buffers */
// TODO: don't hard-code the plugin name
auto &event_loop = StringIsEqual(plugin->name, "alsa")
? rt_event_loop
: normal_event_loop;
std::unique_ptr<AudioOutput> ao(ao_plugin_init(event_loop, *plugin,
block));
assert(ao != nullptr);

14
src/output/MultipleOutputs.cxx
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@ -49,14 +49,14 @@ MultipleOutputs::~MultipleOutputs() noexcept
}
static std::unique_ptr<FilteredAudioOutput>
LoadOutput(EventLoop &event_loop,
LoadOutput(EventLoop &event_loop, EventLoop &rt_event_loop,
const ReplayGainConfig &replay_gain_config,
MixerListener &mixer_listener,
const ConfigBlock &block,
const AudioOutputDefaults &defaults,
FilterFactory *filter_factory)
try {
return audio_output_new(event_loop, replay_gain_config, block,
return audio_output_new(event_loop, rt_event_loop, replay_gain_config, block,
defaults,
filter_factory,
mixer_listener);
@ -69,14 +69,15 @@ try {
}
static std::unique_ptr<AudioOutputControl>
LoadOutputControl(EventLoop &event_loop,
LoadOutputControl(EventLoop &event_loop, EventLoop &rt_event_loop,
const ReplayGainConfig &replay_gain_config,
MixerListener &mixer_listener,
AudioOutputClient &client, const ConfigBlock &block,
const AudioOutputDefaults &defaults,
FilterFactory *filter_factory)
{
auto output = LoadOutput(event_loop, replay_gain_config,
auto output = LoadOutput(event_loop, rt_event_loop,
replay_gain_config,
mixer_listener,
block, defaults, filter_factory);
auto control = std::make_unique<AudioOutputControl>(std::move(output), client);
@ -85,7 +86,7 @@ LoadOutputControl(EventLoop &event_loop,
}
void
MultipleOutputs::Configure(EventLoop &event_loop,
MultipleOutputs::Configure(EventLoop &event_loop, EventLoop &rt_event_loop,
const ConfigData &config,
const ReplayGainConfig &replay_gain_config)
{
@ -94,7 +95,7 @@ MultipleOutputs::Configure(EventLoop &event_loop,
for (const auto &block : config.GetBlockList(ConfigBlockOption::AUDIO_OUTPUT)) {
block.SetUsed();
auto output = LoadOutputControl(event_loop,
auto output = LoadOutputControl(event_loop, rt_event_loop,
replay_gain_config,
mixer_listener,
client, block, defaults,
@ -110,6 +111,7 @@ MultipleOutputs::Configure(EventLoop &event_loop,
/* auto-detect device */
const ConfigBlock empty;
outputs.emplace_back(LoadOutputControl(event_loop,
rt_event_loop,
replay_gain_config,
mixer_listener,
client, empty, defaults,

2
src/output/MultipleOutputs.hxx
View File

@ -74,7 +74,7 @@ public:
MixerListener &_mixer_listener) noexcept;
~MultipleOutputs() noexcept;
void Configure(EventLoop &event_loop,
void Configure(EventLoop &event_loop, EventLoop &rt_event_loop,
const ConfigData &config,
const ReplayGainConfig &replay_gain_config);