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libtgvoip/os/windows/AudioInputWave.cpp

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//
// libtgvoip is free and unencumbered public domain software.
// For more information, see http://unlicense.org or the UNLICENSE file
// you should have received with this source code distribution.
//
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "AudioInputWave.h"
#include "../../logging.h"
#include "../../VoIPController.h"
using namespace tgvoip::audio;
#define BUFFER_SIZE 960
#define CHECK_ERROR(res, msg) if(res!=MMSYSERR_NOERROR){wchar_t _buf[1024]; waveInGetErrorTextW(res, _buf, 1024); LOGE(msg ": %ws (MMRESULT=0x%08X)", _buf, res); failed=true;}
AudioInputWave::AudioInputWave(std::string deviceID){
isRecording=false;
for(int i=0;i<4;i++){
ZeroMemory(&buffers[i], sizeof(WAVEHDR));
buffers[i].dwBufferLength=960*2;
buffers[i].lpData=(char*)malloc(960*2);
}
hWaveIn=NULL;
SetCurrentDevice(deviceID);
}
AudioInputWave::~AudioInputWave(){
for(int i=0;i<4;i++){
free(buffers[i].lpData);
}
waveInClose(hWaveIn);
}
void AudioInputWave::Configure(uint32_t sampleRate, uint32_t bitsPerSample, uint32_t channels){
}
void AudioInputWave::Start(){
isRecording=true;
MMRESULT res;
for(int i=0;i<4;i++){
res=waveInPrepareHeader(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInPrepareHeader failed");
res=waveInAddBuffer(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInAddBuffer failed");
}
res=waveInStart(hWaveIn);
CHECK_ERROR(res, "waveInStart failed");
}
void AudioInputWave::Stop(){
isRecording=false;
MMRESULT res=waveInStop(hWaveIn);
CHECK_ERROR(res, "waveInStop failed");
res=waveInReset(hWaveIn);
CHECK_ERROR(res, "waveInReset failed");
for(int i=0;i<4;i++){
res=waveInUnprepareHeader(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInUnprepareHeader failed");
}
}
void AudioInputWave::WaveInProc(HWAVEIN hwi, UINT uMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2){
if(uMsg==WIM_DATA){
((AudioInputWave*)dwInstance)->OnData((WAVEHDR*)dwParam1);
}
}
void AudioInputWave::OnData(WAVEHDR* hdr){
if(!isRecording)
return;
InvokeCallback((unsigned char*)hdr->lpData, hdr->dwBufferLength);
hdr->dwFlags&= ~WHDR_DONE;
MMRESULT res=waveInAddBuffer(hWaveIn, hdr, sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInAddBuffer failed");
}
void AudioInputWave::EnumerateDevices(std::vector<tgvoip::AudioInputDevice>& devs){
UINT num=waveInGetNumDevs();
WAVEINCAPSW caps;
char nameBuf[512];
for(UINT i=0;i<num;i++){
waveInGetDevCapsW(i, &caps, sizeof(caps));
AudioInputDevice dev;
WideCharToMultiByte(CP_UTF8, 0, caps.szPname, -1, nameBuf, sizeof(nameBuf), NULL, NULL);
dev.displayName=std::string(nameBuf);
dev.id=std::string(nameBuf);
devs.push_back(dev);
}
}
void AudioInputWave::SetCurrentDevice(std::string deviceID){
currentDevice=deviceID;
bool wasRecording=isRecording;
isRecording=false;
if(hWaveIn){
MMRESULT res;
if(isRecording){
res=waveInStop(hWaveIn);
CHECK_ERROR(res, "waveInStop failed");
res=waveInReset(hWaveIn);
CHECK_ERROR(res, "waveInReset failed");
for(int i=0;i<4;i++){
res=waveInUnprepareHeader(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInUnprepareHeader failed");
}
}
res=waveInClose(hWaveIn);
CHECK_ERROR(res, "waveInClose failed");
}
ZeroMemory(&format, sizeof(format));
format.cbSize=0;
format.wFormatTag=WAVE_FORMAT_PCM;
format.nSamplesPerSec=48000;
format.wBitsPerSample=16;
format.nChannels=1;
format.nBlockAlign=2;
LOGV("before open device %s", deviceID.c_str());
if(deviceID=="default"){
MMRESULT res=waveInOpen(&hWaveIn, WAVE_MAPPER, &format, (DWORD_PTR)AudioInputWave::WaveInProc, (DWORD_PTR)this, CALLBACK_FUNCTION);
CHECK_ERROR(res, "waveInOpen failed");
}else{
UINT num=waveInGetNumDevs();
WAVEINCAPSW caps;
char nameBuf[512];
hWaveIn=NULL;
for(UINT i=0;i<num;i++){
waveInGetDevCapsW(i, &caps, sizeof(caps));
WideCharToMultiByte(CP_UTF8, 0, caps.szPname, -1, nameBuf, sizeof(nameBuf), NULL, NULL);
std::string name=std::string(nameBuf);
if(name==deviceID){
MMRESULT res=waveInOpen(&hWaveIn, i, &format, (DWORD_PTR)AudioInputWave::WaveInProc, (DWORD_PTR)this, CALLBACK_FUNCTION | WAVE_MAPPED);
CHECK_ERROR(res, "waveInOpen failed");
LOGD("Opened device %s", nameBuf);
break;
}
}
if(!hWaveIn){
SetCurrentDevice("default");
return;
}
}
isRecording=wasRecording;
if(isRecording){
MMRESULT res;
for(int i=0;i<4;i++){
res=waveInPrepareHeader(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInPrepareHeader failed");
res=waveInAddBuffer(hWaveIn, &buffers[i], sizeof(WAVEHDR));
CHECK_ERROR(res, "waveInAddBuffer failed");
}
res=waveInStart(hWaveIn);
CHECK_ERROR(res, "waveInStart failed");
}
}