mirror of
https://github.com/danog/libtgvoip.git
synced 2024-12-11 16:49:52 +01:00
334 lines
8.5 KiB
C++
334 lines
8.5 KiB
C++
//
|
|
// 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 <assert.h>
|
|
#include <dlfcn.h>
|
|
#include <unistd.h>
|
|
#include "AudioInputPulse.h"
|
|
#include "../../logging.h"
|
|
#include "../../VoIPController.h"
|
|
#define TGVOIP_IN_AUDIO_IO
|
|
#include "PulseAudioLoader.h"
|
|
#undef TGVOIP_IN_AUDIO_IO
|
|
|
|
#define BUFFER_SIZE 960
|
|
#define CHECK_ERROR(res, msg) if(res!=0){LOGE(msg " failed: %s", pa_strerror(res)); failed=true; return;}
|
|
|
|
using namespace tgvoip::audio;
|
|
|
|
AudioInputPulse::AudioInputPulse(std::string devID){
|
|
isRecording=false;
|
|
isConnected=false;
|
|
didStart=false;
|
|
|
|
mainloop=NULL;
|
|
mainloopApi=NULL;
|
|
context=NULL;
|
|
stream=NULL;
|
|
remainingDataSize=0;
|
|
|
|
if(!PulseAudioLoader::IncRef()){
|
|
failed=true;
|
|
return;
|
|
}
|
|
|
|
mainloop=pa_threaded_mainloop_new();
|
|
if(!mainloop){
|
|
LOGE("Error initializing PulseAudio (pa_threaded_mainloop_new)");
|
|
failed=true;
|
|
return;
|
|
}
|
|
mainloopApi=pa_threaded_mainloop_get_api(mainloop);
|
|
char exePath[MAXPATHLEN];
|
|
char exeName[MAXPATHLEN];
|
|
ssize_t lres=readlink("/proc/self/exe", exePath, sizeof(exePath));
|
|
if(lres==-1)
|
|
lres=readlink("/proc/curproc/file", exePath, sizeof(exePath));
|
|
if(lres==-1)
|
|
lres=readlink("/proc/curproc/exe", exePath, sizeof(exePath));
|
|
if(lres>0){
|
|
strcpy(exeName, basename(exePath));
|
|
}else{
|
|
snprintf(exeName, sizeof(exeName), "Process %d", getpid());
|
|
}
|
|
context=pa_context_new(mainloopApi, exeName);
|
|
if(!context){
|
|
LOGE("Error initializing PulseAudio (pa_context_new)");
|
|
failed=true;
|
|
return;
|
|
}
|
|
pa_context_set_state_callback(context, AudioInputPulse::ContextStateCallback, this);
|
|
pa_threaded_mainloop_lock(mainloop);
|
|
isLocked=true;
|
|
int err=pa_threaded_mainloop_start(mainloop);
|
|
CHECK_ERROR(err, "pa_threaded_mainloop_start");
|
|
didStart=true;
|
|
|
|
err=pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL);
|
|
CHECK_ERROR(err, "pa_context_connect");
|
|
|
|
while(true){
|
|
pa_threaded_mainloop_lock(mainloop);
|
|
pa_context_state_t contextState=pa_context_get_state(context);
|
|
pa_threaded_mainloop_unlock(mainloop);
|
|
if(!PA_CONTEXT_IS_GOOD(contextState)){
|
|
LOGE("Error initializing PulseAudio (PA_CONTEXT_IS_GOOD)");
|
|
failed=true;
|
|
return;
|
|
}
|
|
if(contextState==PA_CONTEXT_READY)
|
|
break;
|
|
pa_threaded_mainloop_wait(mainloop);
|
|
}
|
|
|
|
pa_sample_spec sample_specifications{
|
|
.format=PA_SAMPLE_S16LE,
|
|
.rate=48000,
|
|
.channels=1
|
|
};
|
|
|
|
stream=pa_stream_new(context, "libtgvoip capture", &sample_specifications, NULL);
|
|
if(!stream){
|
|
LOGE("Error initializing PulseAudio (pa_stream_new)");
|
|
failed=true;
|
|
return;
|
|
}
|
|
pa_stream_set_state_callback(stream, AudioInputPulse::StreamStateCallback, this);
|
|
pa_stream_set_read_callback(stream, AudioInputPulse::StreamReadCallback, this);
|
|
pa_threaded_mainloop_unlock(mainloop);
|
|
isLocked=false;
|
|
|
|
SetCurrentDevice(devID);
|
|
}
|
|
|
|
AudioInputPulse::~AudioInputPulse(){
|
|
if(mainloop && didStart){
|
|
if(isLocked)
|
|
pa_threaded_mainloop_unlock(mainloop);
|
|
pa_threaded_mainloop_stop(mainloop);
|
|
}
|
|
if(stream){
|
|
pa_stream_disconnect(stream);
|
|
pa_stream_unref(stream);
|
|
}
|
|
if(context){
|
|
pa_context_disconnect(context);
|
|
pa_context_unref(context);
|
|
}
|
|
if(mainloop)
|
|
pa_threaded_mainloop_free(mainloop);
|
|
|
|
PulseAudioLoader::DecRef();
|
|
}
|
|
|
|
bool AudioInputPulse::IsAvailable(){
|
|
void* lib=dlopen("libpulse.so.0", RTLD_LAZY);
|
|
if(!lib)
|
|
lib=dlopen("libpulse.so", RTLD_LAZY);
|
|
if(lib){
|
|
dlclose(lib);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void AudioInputPulse::Configure(uint32_t sampleRate, uint32_t bitsPerSample, uint32_t channels){
|
|
|
|
}
|
|
|
|
void AudioInputPulse::Start(){
|
|
if(failed || isRecording)
|
|
return;
|
|
|
|
isRecording=true;
|
|
pa_operation_unref(pa_stream_cork(stream, 0, AudioInputPulse::StreamSuccessCallback, mainloop));
|
|
}
|
|
|
|
void AudioInputPulse::Stop(){
|
|
if(!isRecording)
|
|
return;
|
|
|
|
isRecording=false;
|
|
pa_operation_unref(pa_stream_cork(stream, 1, AudioInputPulse::StreamSuccessCallback, mainloop));
|
|
}
|
|
|
|
bool AudioInputPulse::IsRecording(){
|
|
return isRecording;
|
|
}
|
|
|
|
void AudioInputPulse::SetCurrentDevice(std::string devID){
|
|
currentDevice=devID;
|
|
if(isRecording && isConnected){
|
|
pa_stream_disconnect(stream);
|
|
isConnected=false;
|
|
}
|
|
|
|
pa_buffer_attr bufferAttr={
|
|
.maxlength=960*6,
|
|
.tlength=960*6,
|
|
.prebuf=0,
|
|
.minreq=960*2
|
|
};
|
|
int streamFlags=PA_STREAM_START_CORKED | PA_STREAM_INTERPOLATE_TIMING |
|
|
PA_STREAM_NOT_MONOTONIC | PA_STREAM_AUTO_TIMING_UPDATE | PA_STREAM_ADJUST_LATENCY;
|
|
|
|
int err=pa_stream_connect_record(stream, devID=="default" ? NULL : devID.c_str(), &bufferAttr, (pa_stream_flags_t)streamFlags);
|
|
if(err!=0 && devID!="default"){
|
|
SetCurrentDevice("default");
|
|
return;
|
|
}
|
|
CHECK_ERROR(err, "pa_stream_connect_record");
|
|
|
|
while(true){
|
|
pa_threaded_mainloop_lock(mainloop);
|
|
pa_stream_state_t streamState=pa_stream_get_state(stream);
|
|
pa_threaded_mainloop_unlock(mainloop);
|
|
if(!PA_STREAM_IS_GOOD(streamState)){
|
|
LOGE("Error connecting to audio device '%s'", devID.c_str());
|
|
failed=true;
|
|
return;
|
|
}
|
|
if(streamState==PA_STREAM_READY)
|
|
break;
|
|
pa_threaded_mainloop_wait(mainloop);
|
|
}
|
|
|
|
isConnected=true;
|
|
|
|
if(isRecording){
|
|
pa_operation_unref(pa_stream_cork(stream, 0, AudioInputPulse::StreamSuccessCallback, mainloop));
|
|
}
|
|
}
|
|
|
|
bool AudioInputPulse::EnumerateDevices(std::vector<AudioInputDevice>& devs){
|
|
if(!PulseAudioLoader::IncRef())
|
|
return false;
|
|
|
|
pa_mainloop* ml;
|
|
pa_mainloop_api* mlAPI;
|
|
pa_context* ctx;
|
|
pa_operation* op=NULL;
|
|
int state=0;
|
|
int paReady=0;
|
|
|
|
ml=pa_mainloop_new();
|
|
mlAPI=pa_mainloop_get_api(ml);
|
|
ctx=pa_context_new(mlAPI, "libtgvoip");
|
|
|
|
pa_context_connect(ctx, NULL, PA_CONTEXT_NOFLAGS, NULL);
|
|
pa_context_set_state_callback(ctx, AudioInputPulse::ContextStateCallbackEnum, &paReady);
|
|
|
|
while(true){
|
|
if(paReady==0){
|
|
pa_mainloop_iterate(ml, 1, NULL);
|
|
continue;
|
|
}
|
|
if(paReady==2){
|
|
pa_context_disconnect(ctx);
|
|
pa_context_unref(ctx);
|
|
pa_mainloop_free(ml);
|
|
PulseAudioLoader::DecRef();
|
|
return false;
|
|
}
|
|
if(!op){
|
|
op=pa_context_get_source_info_list(ctx, AudioInputPulse::DeviceEnumCallback, &devs);
|
|
continue;
|
|
}
|
|
if(pa_operation_get_state(op)==PA_OPERATION_DONE){
|
|
pa_operation_unref(op);
|
|
pa_context_disconnect(ctx);
|
|
pa_context_unref(ctx);
|
|
pa_mainloop_free(ml);
|
|
PulseAudioLoader::DecRef();
|
|
return true;
|
|
}
|
|
pa_mainloop_iterate(ml, 1, NULL);
|
|
}
|
|
}
|
|
|
|
void AudioInputPulse::ContextStateCallback(pa_context* context, void* arg) {
|
|
AudioInputPulse* self=(AudioInputPulse*) arg;
|
|
pa_threaded_mainloop_signal(self->mainloop, 0);
|
|
}
|
|
|
|
void AudioInputPulse::StreamStateCallback(pa_stream *s, void* arg) {
|
|
AudioInputPulse* self=(AudioInputPulse*) arg;
|
|
pa_threaded_mainloop_signal(self->mainloop, 0);
|
|
}
|
|
|
|
void AudioInputPulse::StreamReadCallback(pa_stream *stream, size_t requestedBytes, void *userdata){
|
|
((AudioInputPulse*)userdata)->StreamReadCallback(stream, requestedBytes);
|
|
}
|
|
|
|
void AudioInputPulse::StreamReadCallback(pa_stream *stream, size_t requestedBytes) {
|
|
int bytesRemaining = requestedBytes;
|
|
uint8_t *buffer = NULL;
|
|
while (bytesRemaining > 0) {
|
|
size_t bytesToFill = 102400;
|
|
size_t i;
|
|
|
|
if (bytesToFill > bytesRemaining) bytesToFill = bytesRemaining;
|
|
|
|
int err=pa_stream_peek(stream, (const void**) &buffer, &bytesToFill);
|
|
CHECK_ERROR(err, "pa_stream_peek");
|
|
|
|
if(isRecording){
|
|
if(remainingDataSize+bytesToFill>sizeof(remainingData)){
|
|
LOGE("Capture buffer is too big (%d)", (int)bytesToFill);
|
|
}
|
|
memcpy(remainingData+remainingDataSize, buffer, bytesToFill);
|
|
remainingDataSize+=bytesToFill;
|
|
while(remainingDataSize>=960*2){
|
|
InvokeCallback(remainingData, 960*2);
|
|
memmove(remainingData, remainingData+960*2, remainingDataSize-960*2);
|
|
remainingDataSize-=960*2;
|
|
}
|
|
}
|
|
|
|
err=pa_stream_drop(stream);
|
|
CHECK_ERROR(err, "pa_stream_drop");
|
|
|
|
bytesRemaining -= bytesToFill;
|
|
}
|
|
}
|
|
|
|
void AudioInputPulse::StreamSuccessCallback(pa_stream *stream, int success, void *userdata) {
|
|
return;
|
|
}
|
|
|
|
void AudioInputPulse::ContextStateCallbackEnum(pa_context* context, void* arg){
|
|
pa_context_state_t state;
|
|
int* pa_ready=(int*)arg;
|
|
|
|
state=pa_context_get_state(context);
|
|
switch(state){
|
|
case PA_CONTEXT_UNCONNECTED:
|
|
case PA_CONTEXT_CONNECTING:
|
|
case PA_CONTEXT_AUTHORIZING:
|
|
case PA_CONTEXT_SETTING_NAME:
|
|
default:
|
|
break;
|
|
case PA_CONTEXT_FAILED:
|
|
case PA_CONTEXT_TERMINATED:
|
|
*pa_ready=2;
|
|
break;
|
|
case PA_CONTEXT_READY:
|
|
*pa_ready=1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void AudioInputPulse::DeviceEnumCallback(pa_context* ctx, const pa_source_info* info, int eol, void* userdata){
|
|
if(eol>0)
|
|
return;
|
|
std::vector<AudioInputDevice>* devs=(std::vector<AudioInputDevice>*)userdata;
|
|
AudioInputDevice dev;
|
|
dev.id=std::string(info->name);
|
|
dev.displayName=std::string(info->description);
|
|
devs->push_back(dev);
|
|
}
|