ACameraCaptureSession_captureCallbacks* NDKCamera::GetCaptureCallback() {
static ACameraCaptureSession_captureCallbacks captureListener{
.context = this,
.onCaptureStarted = nullptr,
.onCaptureProgressed = nullptr,
.onCaptureCompleted = nullptr,
.onCaptureFailed = SessionCaptureCallback_OnFailed,
.onCaptureSequenceCompleted = SessionCaptureCallback_OnSequenceEnd,
.onCaptureSequenceAborted = SessionCaptureCallback_OnSequenceAborted,
.onCaptureBufferLost = nullptr,
};
return &captureListener;
}
/**
* Process JPG capture SessionCaptureCallback_OnFailed event
* If this is current JPG capture session, simply resume preview
* @param session the capture session that failed
* @param request the capture request that failed
* @param failure for additional fail info.
*/
void NDKCamera::OnCaptureFailed(ACameraCaptureSession* session,
ACaptureRequest* request,
ACameraCaptureFailure* failure) {
if (valid_ && request == requests_[JPG_CAPTURE_REQUEST_IDX].request_) {
ASSERT(failure->sequenceId ==
requests_[JPG_CAPTURE_REQUEST_IDX].sessionSequenceId_,
"Error jpg sequence id")
StartPreview(true);
}
}
/**
* Process event from JPEG capture
* SessionCaptureCallback_OnSequenceEnd()
* SessionCaptureCallback_OnSequenceAborted()
*
* If this is jpg capture, turn back on preview after a catpure.
*/
void NDKCamera::OnCaptureSequenceEnd(ACameraCaptureSession* session,
int sequenceId, int64_t frameNumber) {
if (sequenceId != requests_[JPG_CAPTURE_REQUEST_IDX].sessionSequenceId_)
return;
// resume preview
CALL_SESSION(setRepeatingRequest(captureSession_, nullptr, 1,
&requests_[PREVIEW_REQUEST_IDX].request_,
nullptr));
}
/*
函数: BulidPrivewGraph()
功能: 创建函数
*/
int CCaptureAudio::BulidCaptureGraph()
{
HRESULT hr=NOERROR;
if(m_iDeviceId <0)
{
return -1;
}
// 解决声卡不存在时出现调用程序异常的问题 [10/23/2014-16:28:00 Dingshuai]
if(m_pBaseFilter==NULL)
{
return -1;
}
GUID pCategorySuc = PIN_CATEGORY_PREVIEW;
GUID pCategoryFail = PIN_CATEGORY_CAPTURE;
if(m_nPinType==0)
{
pCategorySuc = PIN_CATEGORY_PREVIEW;
pCategoryFail = PIN_CATEGORY_CAPTURE;
}
else
{
pCategorySuc = PIN_CATEGORY_CAPTURE;
pCategoryFail = PIN_CATEGORY_PREVIEW;
}
hr = SetAudioFormat(m_nChannels,m_nBytesPerSample,m_nSampleRate,m_nAudioBufferType,m_nPinType);
if(FAILED(hr))
{
//ERR_DEBUG("SetAudioFormat Failed");
return -1;
}
hr = CreateCaptureSampleGrabber();
if(FAILED(hr))
{
SAFE_RELEASE(m_pSampleGrabberFilter);
SAFE_RELEASE(m_pSampleGrabber);
//ERR_DEBUG("CreateCaptureSampleGrabber Failed");
return -1;
}
hr = m_pCaptureGraphBulid->RenderStream(&pCategorySuc,&MEDIATYPE_Audio,m_pBaseFilter,NULL,m_pSampleGrabberFilter);
if(FAILED(hr))
{
//ERR_DEBUG("PrivewVideoDev RenderStream Failed ");
return -1;
}
if(m_bThread)//标识是否创建线程
{
m_pSampleGrabber->SetBufferSamples(TRUE);
m_pSampleGrabber->SetOneShot(FALSE);
}
else
{
m_pSampleGrabber->SetBufferSamples(TRUE);
m_pSampleGrabber->SetOneShot(FALSE);
m_cSampleGrabberCB.SetDataInfo(-1, m_nDataType);
int nMode=1;//0--SampleCB,1--BufferCB
m_pSampleGrabber->SetCallback(&m_cSampleGrabberCB, nMode);
}
hr = StartPreview();
if(FAILED(hr))
{
return -1;
}
return 1;
}