AudioStreamIn* AudioHardwareGeneric::openInputStream(
uint32_t devices, int *format, uint32_t *channels, uint32_t *sampleRate,
status_t *status, AudioSystem::audio_in_acoustics acoustics)
{
// check for valid input source
if (!AudioSystem::isInputDevice((AudioSystem::audio_devices)devices)) {
return 0;
}
AutoMutex lock(mLock);
// only one input stream allowed
if (mInput) {
if (status) {
*status = INVALID_OPERATION;
}
return 0;
}
// create new output stream
AudioStreamInGeneric* in = new AudioStreamInGeneric();
status_t lStatus = in->set(this, mFd, devices, format, channels, sampleRate, acoustics);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR) {
mInput = in;
} else {
delete in;
}
return mInput;
}
AudioStreamIn* AudioHardwareGeneric::openInputStream(
int format, int channelCount, uint32_t sampleRate, status_t *status)
{
AutoMutex lock(mLock);
// only one input stream allowed
if (mInput) {
if (status) {
*status = INVALID_OPERATION;
}
return 0;
}
// create new output stream
AudioStreamInGeneric* in = new AudioStreamInGeneric();
status_t lStatus = in->set(this, mFd, format, channelCount, sampleRate);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR) {
mInput = in;
} else {
delete in;
}
return mInput;
}
AudioStreamIn* AudioHardwareGeneric::openInputStream(
int inputSource, int format, int channelCount, uint32_t sampleRate,
status_t *status, AudioSystem::audio_in_acoustics acoustics)
{
// check for valid input source
if ((inputSource < AudioRecord::DEFAULT_INPUT) ||
(inputSource >= AudioRecord::NUM_INPUT_SOURCES)) {
return 0;
}
AutoMutex lock(mLock);
// only one input stream allowed
if (mInput) {
if (status) {
*status = INVALID_OPERATION;
}
return 0;
}
// create new output stream
AudioStreamInGeneric* in = new AudioStreamInGeneric();
status_t lStatus = in->set(this, mFd, format, channelCount, sampleRate, acoustics);
if (status) {
*status = lStatus;
}
if (lStatus == NO_ERROR) {
mInput = in;
} else {
delete in;
}
return mInput;
}
