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source-mirror: Fix out-of-order playback of audio

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On highly parallel systems (> 4 Threads) audio had a chance of being played back out of order, causing it to jitter. This queue should help eliminate the issue entirely.

Fixes #111
This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2020-03-20 23:59:42 +01:00
parent 8f4313d8e8
commit d6c903a3bd
2 changed files with 21 additions and 12 deletions
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15
source/sources/source-mirror.cpp
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@ -249,16 +249,23 @@ void source::mirror::mirror_instance::on_audio(std::shared_ptr<obs_source_t>, co
}
}
{
std::unique_lock<std::mutex> ul(_audio_queue_lock);
_audio_queue.emplace(audio, detected_layout);
}
// Create a clone of the audio data and push it to the thread pool.
get_global_threadpool()->push(
std::bind(&source::mirror::mirror_instance::audio_output, this, std::placeholders::_1),
std::make_shared<mirror_audio_data>(audio, detected_layout));
std::bind(&source::mirror::mirror_instance::audio_output, this, std::placeholders::_1), nullptr);
}
void source::mirror::mirror_instance::audio_output(std::shared_ptr<void> data)
{
std::shared_ptr<mirror_audio_data> mad = std::static_pointer_cast<mirror_audio_data>(data);
obs_source_output_audio(_self, &mad->osa);
std::unique_lock<std::mutex> ul(_audio_queue_lock);
while (_audio_queue.size() > 0) {
obs_source_output_audio(_self, &((_audio_queue.front()).osa));
_audio_queue.pop();
}
}
std::shared_ptr<mirror::mirror_factory> mirror::mirror_factory::factory_instance;

2
source/sources/source-mirror.hpp
View file

@ -61,6 +61,8 @@ namespace source::mirror {
// Audio
bool _audio_enabled;
speaker_layout _audio_layout;
std::mutex _audio_queue_lock;
std::queue<mirror_audio_data> _audio_queue;
public:
mirror_instance(obs_data_t* settings, obs_source_t* self);