92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
#include "AudioPlayer.h"
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#include "Debuger.h"
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#include "utils.h"
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AudioPlayer::AudioPlayer(int index)
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{
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mStatus = RUNNING;
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PaError err = Pa_Initialize();
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if (err != paNoError) {
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Debuger::Debug(L"init stream error\r\n");
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mStatus = FAIL;
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}
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//获得设备数量
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PaDeviceIndex iNumDevices = Pa_GetDeviceCount();
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if (iNumDevices < 0)
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{
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}
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for (int i = 0; i < iNumDevices; i++)
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{
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const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
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Debuger::Debug(L"index %d %d %d \r\n",i,
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deviceInfo->maxInputChannels, deviceInfo->maxOutputChannels); //打印设备名
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}
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mOutputParameters.device = index;
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mOutputParameters.channelCount = 2; //输出采用双声道，左声道在前
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mOutputParameters.sampleFormat = paInt16;
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mOutputParameters.suggestedLatency = Pa_GetDeviceInfo(mOutputParameters.device)->defaultLowOutputLatency;
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mOutputParameters.hostApiSpecificStreamInfo = NULL;
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err = Pa_OpenStream(&mOutStream, NULL, &mOutputParameters, 44100, 1024,
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paFramesPerBufferUnspecified, NULL, NULL);
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if (err != paNoError) {
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Debuger::Debug(L"open output stream error\r\n");
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mStatus = FAIL;
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goto end;
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}
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err = Pa_StartStream(mOutStream);
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if (err != paNoError) {
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Debuger::Debug(L"start stream error\r\n");
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mStatus = FAIL;
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}
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end:
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return;
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}
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vector<AudioPlayer::SpeakerInfo> AudioPlayer::EnumSpeakers()
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{
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vector<AudioPlayer::SpeakerInfo> ret;
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PaError err = Pa_Initialize();
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if (err != paNoError) {
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Debuger::Debug(L"init stream error\r\n");
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mStatus = FAIL;
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}
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//获得设备数量
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PaDeviceIndex iNumDevices = Pa_GetDeviceCount();
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if (iNumDevices <= 0)
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{
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return ret;
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}
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for (int i = 0; i < iNumDevices; i++)
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{
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SpeakerInfo ins;
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ins.index = i;
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const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
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if(nullptr != deviceInfo)
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if (deviceInfo->maxOutputChannels > 0) {
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ins.name = char2wchar(deviceInfo->name);
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ret.push_back(ins);
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}
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}
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return ret;
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}
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int AudioPlayer::Play(uint8_t * data, uint16_t num)
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{
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PaError err;
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if (mStatus == RUNNING) {
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err = Pa_WriteStream(mOutStream, data, num);
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if (paNoError != err) {
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return -1;
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}
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}
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else {
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return -1;
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}
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return 0;
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}
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int AudioPlayer::OnAudioDecode(uint8_t * dat, uint16_t size)
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{
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return this->Play(dat, 1024);
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return 0;
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}
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