55 lines
1.0 KiB
C++
55 lines
1.0 KiB
C++
#ifdef USE_LIBAO
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#include "audiostream.h"
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#include <ao/ao.h>
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class LibAOBackend : public AudioBackend
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{
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ao_device *aodevice = nullptr;
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public:
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LibAOBackend()
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: AudioBackend("libao", "libao") {}
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bool init() override
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{
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ao_initialize();
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ao_sample_format aoformat {};
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aoformat.bits = 16;
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aoformat.channels = 2;
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aoformat.rate = 44100;
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aoformat.byte_format = AO_FMT_LITTLE;
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aodevice = ao_open_live(ao_default_driver_id(), &aoformat, NULL); // Live output
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if (aodevice == nullptr)
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aodevice = ao_open_live(ao_driver_id("null"), &aoformat, NULL);
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if (aodevice == nullptr) {
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ERROR_LOG(AUDIO, "Cannot open libao driver");
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ao_shutdown();
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}
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return aodevice != nullptr;
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}
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u32 push(const void* frame, u32 samples, bool wait) override
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{
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if (aodevice != nullptr)
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ao_play(aodevice, (char*)frame, samples * 4);
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return 1;
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}
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void term() override
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{
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if (aodevice != nullptr)
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{
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ao_close(aodevice);
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aodevice = nullptr;
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ao_shutdown();
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}
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}
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};
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static LibAOBackend libAOBackend;
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#endif
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