优化自动切换的代码

app/src/main/cpp/camera2/ndkcamera.cpp

@@ -155,6 +155,11 @@ NdkCamera::NdkCamera(int32_t width, int32_t height, const NdkCamera::CAMERA_PARA
 	mOutputTarget = NULL;
     mSessionOutput = NULL;
 
+    mImageReader2 = NULL;
+    mImageWindow2 = NULL;
+    mOutputTarget2 = NULL;
+    mSessionOutput2 = NULL;
+
 	camera_device = 0;
 
 	capture_session_output_container = 0;
@@ -165,6 +170,12 @@ NdkCamera::NdkCamera(int32_t width, int32_t height, const NdkCamera::CAMERA_PARA
 	mResult = { 0 };
 	mLdr = ~0;
 	mFinalLdr = 0;
+	mFinalBurstCaptures = m_params.burstCaptures;
+	if (mFinalBurstCaptures == 0)
+	{
+		mFinalBurstCaptures = 1;
+	}
+	mFinalOutputFormat = (m_params.burstRawCapture == 0) ? AIMAGE_FORMAT_YUV_420_888 : AIMAGE_FORMAT_RAW16;
 }
 
 NdkCamera::~NdkCamera()
@@ -618,6 +629,25 @@ int NdkCamera::open(const std::string& cameraId) {
     status = ACaptureSessionOutputContainer_add(capture_session_output_container, mSessionOutput);
 
 
+    if (m_params.burstRawCapture == 1) // Auto
+    {
+        mstatus = AImageReader_new(foundRes.org_width(), foundRes.org_height(), AIMAGE_FORMAT_YUV_420_888, burstCaptures, &mImageReader2);
+        if (mstatus == AMEDIA_OK)
+        {
+            AImageReader_ImageListener listener;
+            listener.context = this;
+            listener.onImageAvailable = ::onImageAvailable;
+            mstatus = AImageReader_setImageListener(mImageReader2, &listener);
+            mstatus = AImageReader_getWindow(mImageReader2, &mImageWindow2);
+            ANativeWindow_acquire(mImageWindow2);
+        }
+        status = ACameraOutputTarget_create(mImageWindow2, &mOutputTarget2);
+
+        status = ACaptureSessionOutput_create(mImageWindow2, &mSessionOutput2);
+        status = ACaptureSessionOutputContainer_add(capture_session_output_container, mSessionOutput2);
+    }
+
+
     CaptureRequest *request = CreateRequest(true);
     mCaptureRequests.push_back(request);
 #if 0
@@ -852,11 +882,12 @@ NdkCamera::CaptureRequest* NdkCamera::CreateRequest(bool isPreviewRequest)
 	CaptureRequest *request = new CaptureRequest();
 	std::memset(request, 0, sizeof(CaptureRequest));
 
+    bool autoSwitchToOneFrame = (m_params.burstRawCapture == 1) && (mFinalOutputFormat == AIMAGE_FORMAT_YUV_420_888);
 	request->pThis = this;
-	request->imageReader = isPreviewRequest ? mPreviewImageReader : mImageReader;
+	request->imageReader = isPreviewRequest ? mPreviewImageReader : (autoSwitchToOneFrame ? mImageReader2 : mImageReader);
-	request->imageWindow = isPreviewRequest ? mPreviewImageWindow : mImageWindow;
+	request->imageWindow = isPreviewRequest ? mPreviewImageWindow : (autoSwitchToOneFrame ? mImageWindow2 : mImageWindow);
-	request->imageTarget = isPreviewRequest ? mPreviewOutputTarget : mOutputTarget;
+	request->imageTarget = isPreviewRequest ? mPreviewOutputTarget : (autoSwitchToOneFrame ? mOutputTarget2 : mOutputTarget);
-	request->sessionOutput = isPreviewRequest ? mPreviewSessionOutput : mSessionOutput;
+	request->sessionOutput = isPreviewRequest ? mPreviewSessionOutput : (autoSwitchToOneFrame ? mSessionOutput2 : mSessionOutput);
 	request->templateId = isPreviewRequest ? TEMPLATE_PREVIEW : (ACameraDevice_request_template)m_params.requestTemplate;
 
 	// mCaptureRequests.push_back(request);
@@ -1130,6 +1161,28 @@ void NdkCamera::close()
 		mImageReader = 0;
 	}
 
+    if (mOutputTarget2 != NULL)
+    {
+        ACameraOutputTarget_free(mOutputTarget2);
+        mOutputTarget2 = 0;
+    }
+
+    if (mImageWindow2 != NULL)
+    {
+        ANativeWindow_release(mImageWindow2);
+        mImageWindow2 = 0;
+    }
+
+    if (mImageReader2 != NULL)
+    {
+        // AImageReader_setImageListener(image_reader, NULL);
+        //XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::AImageReader_delete %s", mCameraId.c_str());
+        AImageReader_delete(mImageReader2);
+        //XYLOG(XYLOG_SEVERITY_DEBUG, "CameraStatus::End AImageReader_delete %s", mCameraId.c_str());
+
+        mImageReader2 = 0;
+    }
+
 	if (mPreviewSessionOutput != NULL)
 	{
 		if (capture_session_output_container)
@@ -1149,6 +1202,15 @@ void NdkCamera::close()
 		ACaptureSessionOutput_free(mSessionOutput);
 		mSessionOutput = 0;
 	}
+    if (mSessionOutput2 != NULL)
+    {
+        if (capture_session_output_container)
+        {
+            ACaptureSessionOutputContainer_remove(capture_session_output_container, mSessionOutput2);
+        }
+        ACaptureSessionOutput_free(mSessionOutput2);
+        mSessionOutput2 = 0;
+    }
 
 	if (capture_session_output_container)
 	{
@@ -1198,7 +1260,7 @@ void NdkCamera::onImageAvailable(AImageReader* reader)
 #endif
 			avgY = avgY / (uint64_t)y_len;
             m_locker.lock();
-			mLdr = avgY;
+			mLdr = (uint8_t)avgY;
             m_locker.unlock();
 		}
 
@@ -1674,11 +1736,23 @@ void NdkCamera::onCaptureCompleted(ACameraCaptureSession* session, ACaptureReque
 
 		if (readyForCapture/* && mCaptureRequests.size() > 1*/)
 		{
-			XYLOG(XYLOG_SEVERITY_INFO, "Ready for Capture AFS=%u AES=%u AWBS=%u Time=%u",
-				(unsigned int)afState, (unsigned int)aeState, (unsigned int)awbState, (unsigned int)(ts - m_startTime));
-
 			// Must update mFinalLdr As getBurstCaptures getOutputFormat depends mFinalLdr
-			mFinalLdr = mLdr;
+			if (mLdr != ~0)
+			{
+				mFinalLdr = mLdr;
+			}
+
+			XYLOG(XYLOG_SEVERITY_INFO, "Ready for Capture AFS=%u AES=%u AWBS=%u LDR=%u Time=%u",
+				(unsigned int)afState, (unsigned int)aeState, (unsigned int)awbState, mFinalLdr, (unsigned int)(ts - m_startTime));
+			if (m_params.burstRawCapture == 1)
+			{
+				if (mFinalLdr > 50)
+				{
+					XYLOG(XYLOG_SEVERITY_WARNING, "Switch to OneFrame Capture(YUV) As LDR=%u", mFinalLdr);
+					mFinalOutputFormat = AIMAGE_FORMAT_YUV_420_888;
+					mFinalBurstCaptures = 1;
+				}
+			}
 
             uint32_t burstCaptures = getBurstCaptures();
             if (burstCaptures == 0)
@@ -1898,13 +1972,13 @@ bool NdkCamera::IsCameraAvailable(const std::string& cameraId)
 
 int32_t NdkCamera::getOutputFormat() const
 {
-	return (m_params.burstRawCapture == 0) ? AIMAGE_FORMAT_YUV_420_888 : ((m_params.burstRawCapture != 1 || mFinalLdr <= 50) ? AIMAGE_FORMAT_RAW16 : AIMAGE_FORMAT_YUV_420_888);
+	return mFinalOutputFormat;
 	// return m_params.burstRawCapture ? AIMAGE_FORMAT_RAW16 : AIMAGE_FORMAT_YUV_420_888;
 }
 
 int32_t NdkCamera::getBurstCaptures() const
 {
-	return (m_params.burstRawCapture == 0) ? 1 : ((m_params.burstRawCapture != 1 || mFinalLdr <= 50) ? m_params.burstCaptures : 1);
+	return mFinalBurstCaptures;
 }
 
 void NdkCamera::CreateSession(ANativeWindow* previewWindow,

app/src/main/cpp/camera2/ndkcamera.h

@@ -249,6 +249,11 @@ protected:
     ACameraOutputTarget* mOutputTarget;
     ACaptureSessionOutput* mSessionOutput;
 
+    AImageReader* mImageReader2;
+    ANativeWindow* mImageWindow2;
+    ACameraOutputTarget* mOutputTarget2;
+    ACaptureSessionOutput* mSessionOutput2;
+
     std::shared_ptr<ACameraMetadata> mCharacteristics;
     std::vector<CaptureRequest*> mCaptureRequests;
 
@@ -256,6 +261,8 @@ protected:
     std::vector<std::shared_ptr<ACameraMetadata> > mCaptureResults;
     uint32_t mLdr;
     uint32_t mFinalLdr;
+    uint32_t mFinalBurstCaptures;
+    int32_t mFinalOutputFormat;
     std::vector<std::shared_ptr<AImage> > mCaptureFrames;
 
     cv::Mat mOneFrame;