42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
#include "SDLAudioPlayer.h"
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#include "spdlog/spdlog.h"
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namespace Ship {
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bool SDLAudioPlayer::Init(void) {
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if (SDL_Init(SDL_INIT_AUDIO) != 0) {
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SPDLOG_ERROR("SDL init error: %s\n", SDL_GetError());
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return false;
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}
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SDL_AudioSpec want, have;
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SDL_zero(want);
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want.freq = this->GetSampleRate();
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want.format = AUDIO_S16;
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want.channels = 2;
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want.samples = 1024;
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want.callback = NULL;
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Device = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
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if (Device == 0) {
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SPDLOG_ERROR("SDL_OpenAudio error: {}", SDL_GetError());
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return false;
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}
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SDL_PauseAudioDevice(Device, 0);
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return true;
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}
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int SDLAudioPlayer::Buffered(void) {
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// 4 is sizeof(int16_t) * num_channels (2 for stereo)
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return SDL_GetQueuedAudioSize(Device) / 4;
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}
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int SDLAudioPlayer::GetDesiredBuffered(void) {
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return 2480;
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}
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void SDLAudioPlayer::Play(const uint8_t* Buffer, uint32_t BufferLen) {
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if (Buffered() < 6000) {
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// Don't fill the audio buffer too much in case this happens
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SDL_QueueAudio(Device, Buffer, BufferLen);
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}
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}
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}
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