mirror of
https://github.com/mackron/miniaudio.git
synced 2026-04-21 15:56:58 +02:00
David Reid
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
#include <stdio.h>
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#define MA_DEBUG_OUTPUT
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#define MINIAUDIO_IMPLEMENTATION
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#include "../miniaudio.h"
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#define DR_WAV_IMPLEMENTATION
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#include "../extras/dr_wav.h"
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#ifdef __EMSCRIPTEN__
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void main_loop__em()
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{
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}
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#endif
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void log_callback(ma_context* pContext, ma_device* pDevice, ma_uint32 logLevel, const char* message)
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{
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(void)pContext;
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(void)pDevice;
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(void)logLevel;
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printf("%s\n", message);
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}
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void stop_callback(ma_device* pDevice)
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{
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(void)pDevice;
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printf("STOPPED\n");
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}
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void data_callback(ma_device* pDevice, void* pOutput, const void* pInput, ma_uint32 frameCount)
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{
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/* In this test the format and channel count are the same for both input and output which means we can just memcpy(). */
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ma_copy_memory(pOutput, pInput, frameCount * ma_get_bytes_per_frame(pDevice->capture.format, pDevice->capture.channels));
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#if 1
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/* Also write to a wav file for debugging. */
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drwav* pWav = (drwav*)pDevice->pUserData;
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ma_assert(pWav != NULL);
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drwav_write_pcm_frames(pWav, frameCount, pInput);
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#endif
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}
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int main(int argc, char** argv)
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{
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ma_result result;
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#if 1
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drwav_data_format wavFormat;
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wavFormat.container = drwav_container_riff;
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wavFormat.format = DR_WAVE_FORMAT_PCM;
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wavFormat.channels = 2;
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wavFormat.sampleRate = 44100;
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wavFormat.bitsPerSample = 16;
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drwav wav;
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if (drwav_init_file_write(&wav, "output.wav", &wavFormat) == DRWAV_FALSE) {
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printf("Failed to initialize output file.\n");
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return -1;
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}
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#endif
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ma_backend backend = ma_backend_wasapi;
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ma_context_config contextConfig = ma_context_config_init();
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contextConfig.logCallback = log_callback;
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ma_context context;
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result = ma_context_init(&backend, 1, &contextConfig, &context);
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if (result != MA_SUCCESS) {
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printf("Failed to initialize context.\n");
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return result;
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}
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ma_device_config deviceConfig = ma_device_config_init(ma_device_type_duplex);
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deviceConfig.capture.pDeviceID = NULL;
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deviceConfig.capture.format = ma_format_s16;
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deviceConfig.capture.channels = 2;
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deviceConfig.playback.pDeviceID = NULL;
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deviceConfig.playback.format = ma_format_s16;
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deviceConfig.playback.channels = 2;
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deviceConfig.playback.shareMode = ma_share_mode_shared;
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deviceConfig.sampleRate = 44100;
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//deviceConfig.bufferSizeInMilliseconds = 60;
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deviceConfig.bufferSizeInFrames = 4096;
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//deviceConfig.periods = 3;
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deviceConfig.dataCallback = data_callback;
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deviceConfig.stopCallback = stop_callback;
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deviceConfig.pUserData = &wav;
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ma_device device;
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result = ma_device_init(&context, &deviceConfig, &device);
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if (result != MA_SUCCESS) {
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return result;
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}
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#ifdef __EMSCRIPTEN__
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getchar();
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#endif
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ma_device_start(&device);
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#ifdef __EMSCRIPTEN__
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emscripten_set_main_loop(main_loop__em, 0, 1);
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#else
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printf("Press Enter to quit...\n");
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getchar();
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#endif
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ma_device_uninit(&device);
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drwav_uninit(&wav);
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(void)argc;
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(void)argv;
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return 0;
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}
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