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It serves as example for output using threaded generic audio
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * This file is part of EasyRPG Player. | ||
| * | ||
| * EasyRPG Player is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * EasyRPG Player is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with EasyRPG Player. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
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| #include "system.h" | ||
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| #ifdef SUPPORT_AUDIO | ||
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| #include <cassert> | ||
| #include <ao/ao.h> | ||
| #include <thread> | ||
| #include <mutex> | ||
| #include "ao_audio.h" | ||
| #include "output.h" | ||
|
|
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| namespace { | ||
| std::thread audio_thread; | ||
| std::mutex audio_mutex; | ||
| bool stop_audio; | ||
| ao_device *device = nullptr; | ||
| int buf_size = 1024; | ||
| } | ||
|
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| void AudioThread(AoAudio* instance) { | ||
| std::vector<uint8_t> buffer; | ||
| buffer.resize(buf_size); | ||
| size_t i=0; | ||
|
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| while (!stop_audio) { | ||
| instance->LockMutex(); | ||
| instance->Decode(buffer.data(), buf_size); | ||
| instance->UnlockMutex(); | ||
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| if (!ao_play(device, reinterpret_cast<char*>(buffer.data()), buf_size)) { | ||
| Output::Warning("Couldn't play audio."); | ||
| return; | ||
| } | ||
| } | ||
| } | ||
|
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| AoAudio::AoAudio(const Game_ConfigAudio& cfg) : | ||
| GenericAudio(cfg) | ||
| { | ||
| ao_initialize(); | ||
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| ao_sample_format format = {}; | ||
| format.bits = 16; | ||
| format.channels = 2; | ||
| format.rate = 44100; | ||
| format.byte_format = AO_FMT_LITTLE; | ||
|
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| device = ao_open_live(ao_default_driver_id(), &format, nullptr); | ||
| if (device == nullptr) { | ||
| Output::Warning("Couldn't open audio: errno={}", errno); | ||
| return; | ||
| } | ||
| SetFormat(format.rate, AudioDecoder::Format::S16, format.channels); | ||
|
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| // Start Audio | ||
| stop_audio = false; | ||
| audio_thread = std::thread(AudioThread, this); | ||
| if(!audio_thread.joinable()) { | ||
| Output::Warning("Couldn't start audio thread."); | ||
| } | ||
| } | ||
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| AoAudio::~AoAudio() { | ||
| stop_audio = true; | ||
| if (audio_thread.joinable()) | ||
| audio_thread.join(); | ||
|
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| if(!ao_close(device)) { | ||
| Output::Warning("Problem closing audio device."); | ||
| } | ||
| ao_shutdown(); | ||
| } | ||
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| void AoAudio::LockMutex() const { | ||
| audio_mutex.lock(); | ||
| } | ||
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| void AoAudio::UnlockMutex() const { | ||
| audio_mutex.unlock(); | ||
| } | ||
|
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| /* | ||
| * This file is part of EasyRPG Player. | ||
| * | ||
| * EasyRPG Player is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * EasyRPG Player is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with EasyRPG Player. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
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| #ifndef EP_AO_AUDIO_H | ||
| #define EP_AO_AUDIO_H | ||
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| #include "audio_generic.h" | ||
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| class AoAudio : public GenericAudio { | ||
| public: | ||
| AoAudio(const Game_ConfigAudio& cfg); | ||
| ~AoAudio(); | ||
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| void LockMutex() const override; | ||
| void UnlockMutex() const override; | ||
| }; | ||
|
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| #endif |
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