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[feat] support speaker capture on Windows

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This commit is contained in:
dijunkun
2024-08-15 11:04:06 +08:00
parent 574b9d10ab
commit 65927c2091
6 changed files with 93 additions and 199 deletions
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46
test/audio_capture/miniaudio.cpp
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@@ -18,12 +18,16 @@ buffer in the callback will be null whereas the input buffer will be valid.
#include <stdio.h>
#include <stdlib.h>
FILE* fp;
void data_callback(ma_device* pDevice, void* pOutput, const void* pInput,
ma_uint32 frameCount) {
ma_encoder* pEncoder = (ma_encoder*)pDevice->pUserData;
MA_ASSERT(pEncoder != NULL);
// ma_encoder* pEncoder = (ma_encoder*)pDevice->pUserData;
// MA_ASSERT(pEncoder != NULL);
ma_encoder_write_pcm_frames(pEncoder, pInput, frameCount, NULL);
// ma_encoder_write_pcm_frames(pEncoder, pInput, frameCount, NULL);
fwrite(pInput, frameCount * ma_get_bytes_per_frame(ma_format_s16, 1), 1, fp);
(void)pOutput;
}
@@ -35,32 +39,36 @@ int main(int argc, char** argv) {
ma_device_config deviceConfig;
ma_device device;
fopen_s(&fp, "miniaudio.pcm", "wb");
/* Loopback mode is currently only supported on WASAPI. */
ma_backend backends[] = {ma_backend_wasapi};
if (argc < 2) {
printf("No output file.\n");
return -1;
}
// if (argc < 2) {
// printf("No output file.\n");
// return -1;
// }
encoderConfig =
ma_encoder_config_init(ma_encoding_format_wav, ma_format_s16, 1, 48000);
// encoderConfig =
// ma_encoder_config_init(ma_encoding_format_wav, ma_format_s16, 1,
// 48000);
if (ma_encoder_init_file(argv[1], &encoderConfig, &encoder) != MA_SUCCESS) {
printf("Failed to initialize output file.\n");
return -1;
}
// if (ma_encoder_init_file(argv[1], &encoderConfig, &encoder) != MA_SUCCESS)
// {
// printf("Failed to initialize output file.\n");
// return -1;
// }
deviceConfig = ma_device_config_init(ma_device_type_loopback);
deviceConfig.capture.pDeviceID =
NULL; /* Use default device for this example. Set this to the ID of a
_playback_ device if you want to capture from a specific device.
*/
deviceConfig.capture.format = encoder.config.format;
deviceConfig.capture.channels = encoder.config.channels;
deviceConfig.sampleRate = encoder.config.sampleRate;
deviceConfig.capture.format = ma_format_s16;
deviceConfig.capture.channels = 1;
deviceConfig.sampleRate = 48000;
deviceConfig.dataCallback = data_callback;
deviceConfig.pUserData = &encoder;
deviceConfig.pUserData = nullptr;
result = ma_device_init_ex(backends, sizeof(backends) / sizeof(backends[0]),
NULL, &deviceConfig, &device);
@@ -79,8 +87,10 @@ int main(int argc, char** argv) {
printf("Press Enter to stop recording...\n");
getchar();
fclose(fp);
ma_device_uninit(&device);
ma_encoder_uninit(&encoder);
// ma_encoder_uninit(&encoder);
return 0;
}