Android Opencv NativeCameraView error in 5.0 lollipop versions (Bug #4185)

https://github.com/opencv/opencv/wiki

http://code.opencv.org/issues/4185

Hello,

I finally get a ride of Android build from sources.
This is built only for arm devices.

you can found the libnative_camera_r5.0.0.so here : https://svn.scolring.org/trunk/dependencies/OpenCV/SDK/android/armeabi-v7a/sdk/native/libs/armeabi-v7a/libnative_camera_r5.0.0.so

the modified camera wrapper :

 .../camera_wrapper/camera_wrapper.cpp              | 62 +++++++++++++++++++---
 1 file changed, 55 insertions(+), 7 deletions(-)

diff --git a/modules/androidcamera/camera_wrapper/camera_wrapper.cpp b/modules/androidcamera/camera_wrapper/camera_wrapper.cpp
index 202aa29..dafbe64 100644
--- a/modules/androidcamera/camera_wrapper/camera_wrapper.cpp
+++ b/modules/androidcamera/camera_wrapper/camera_wrapper.cpp
@@ -1,6 +1,6 @@
 #if !defined(ANDROID_r2_2_0) && !defined(ANDROID_r2_3_3) && !defined(ANDROID_r3_0_1) && 
  !defined(ANDROID_r4_0_0) && !defined(ANDROID_r4_0_3) && !defined(ANDROID_r4_1_1) && 
- !defined(ANDROID_r4_2_0) && !defined(ANDROID_r4_3_0) && !defined(ANDROID_r4_4_0)
+ !defined(ANDROID_r4_2_0) && !defined(ANDROID_r4_3_0) && !defined(ANDROID_r4_4_0) && !defined(ANDROID_r5_0_0)
 # error Building camera wrapper for your version of Android is not supported by OpenCV.
  You need to modify OpenCV sources in order to compile camera wrapper for your version of Android.
 #endif
@@ -8,7 +8,7 @@
 #include <camera/Camera.h>
 #include <camera/CameraParameters.h>

-#if defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3)
+#if defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3) || defined(ANDROID_r5_0_0)
 # include <system/camera.h>
 #endif //defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3)

@@ -22,7 +22,7 @@
 #elif defined(ANDROID_r4_1_1) || defined(ANDROID_r4_2_0)
 # include <gui/ISurface.h>
 # include <gui/BufferQueue.h>
-#elif defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0)
+#elif defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0) || defined(ANDROID_r5_0_0)
 # include <gui/IGraphicBufferProducer.h>
 # include <gui/BufferQueue.h>
 # include <ui/GraphicBuffer.h>
@@ -95,9 +95,25 @@ public:
     {
     }
 };
+#elif defined(ANDROID_r5_0_0)
+class ConsumerListenerStub: public android::BnConsumerListener
+{
+public:
+    virtual void onFrameAvailable()
+    {
+    }
+    virtual void onBuffersReleased()
+    {
+    }
+    virtual void onSidebandStreamChanged()
+    {
+    }
+    virtual ~ConsumerListenerStub()
+    {
+    }
+};   
 #endif

-
 std::string getProcessName()
 {
     std::string result;
@@ -156,6 +172,9 @@ protected:
 #if defined(ANDROID_r4_1_1) || defined(ANDROID_r4_2_0) || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0)
     sp<BufferQueue> queue;
     sp<ConsumerListenerStub> listener;
+#elif defined(ANDROID_r5_0_0)
+    sp<IGraphicBufferProducer> queue;
+    sp<ConsumerListenerStub> listener;
 #endif
     CameraParameters* params;
     CameraCallback cameraCallback;
@@ -344,7 +363,7 @@ public:

     virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr
 #if defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3) || defined(ANDROID_r4_1_1) || defined(ANDROID_r4_2_0) 
- || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0)
+ || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0) || defined(ANDROID_r5_0_0)
                           ,camera_frame_metadata_t*
 #endif
                           )
@@ -689,6 +708,21 @@ CameraHandler* CameraHandler::initCameraConnect(const CameraCallback& callback,
     bufferStatus = handler->camera->setPreviewTarget(handler->queue);
     if (bufferStatus != 0)
         LOGE("applyProperties: failed setPreviewTexture call; camera might not work correctly");
+# elif defined(ANDROID_r5_0_0)
+    void* buffer_queue_obj = operator new(sizeof(BufferQueue) + MAGIC_TAIL);
+
+    sp<IGraphicBufferProducer> producer;
+    sp<IGraphicBufferConsumer> consumer;
+    BufferQueue::createBufferQueue(&producer, &consumer);
+
+    consumer->setConsumerUsageBits(GraphicBuffer::USAGE_HW_TEXTURE);
+    void* consumer_listener_obj = operator new(sizeof(ConsumerListenerStub) + MAGIC_TAIL);
+    handler->listener = new(consumer_listener_obj) ConsumerListenerStub();
+    consumer->consumerConnect(handler->listener, true);
+    handler->queue = producer;
+    bufferStatus = handler->camera->setPreviewTarget(handler->queue);
+    if (bufferStatus != 0)
+        LOGE("applyProperties: failed setPreviewTexture call; camera might not work correctly");
 # endif

 #if (defined(ANDROID_r2_2_0) || defined(ANDROID_r2_3_3) || defined(ANDROID_r3_0_1))
@@ -730,7 +764,7 @@ void CameraHandler::closeCameraConnect()

     camera->stopPreview();
 #if defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3) || defined(ANDROID_r4_1_1) || defined(ANDROID_r4_2_0) 
- || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0)
+ || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0) || defined(ANDROID_r5_0_0)
     camera->setPreviewCallbackFlags(CAMERA_FRAME_CALLBACK_FLAG_NOOP);
 #endif
     camera->disconnect();
@@ -1055,7 +1089,7 @@ void CameraHandler::applyProperties(CameraHandler** ppcameraHandler)
         (*ppcameraHandler)->params->setPreviewSize((*ppcameraHandler)->width, (*ppcameraHandler)->height);

 #if defined(ANDROID_r4_0_0) || defined(ANDROID_r4_0_3) || defined(ANDROID_r4_1_1) || defined(ANDROID_r4_2_0) 
- || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0)
+ || defined(ANDROID_r4_3_0) || defined(ANDROID_r4_4_0) || defined(ANDROID_r5_0_0)
     CameraHandler* handler=*ppcameraHandler;

     handler->camera->stopPreview();
@@ -1092,6 +1126,20 @@ void CameraHandler::applyProperties(CameraHandler** ppcameraHandler)
     bufferStatus = handler->camera->setPreviewTarget(handler->queue);
     if (bufferStatus != 0)
         LOGE("applyProperties: failed setPreviewTexture call; camera might not work correctly");
+# elif defined(ANDROID_r5_0_0)
+    void* buffer_queue_obj = operator new(sizeof(BufferQueue) + MAGIC_TAIL);
+    sp<IGraphicBufferProducer> producer;
+    sp<IGraphicBufferConsumer> consumer;
+    BufferQueue::createBufferQueue(&producer, &consumer);
+
+    consumer->setConsumerUsageBits(GraphicBuffer::USAGE_HW_TEXTURE);
+    void* consumer_listener_obj = operator new(sizeof(ConsumerListenerStub) + MAGIC_TAIL);
+    handler->listener = new(consumer_listener_obj) ConsumerListenerStub();
+    consumer->consumerConnect(handler->listener, true);
+    handler->queue = producer;
+    bufferStatus = handler->camera->setPreviewTarget(handler->queue);
+    if (bufferStatus != 0)
+        LOGE("applyProperties: failed setPreviewTexture call; camera might not work correctly");
 # endif

     handler->camera->setPreviewCallbackFlags( CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK | CAMERA_FRAME_CALLBACK_FLAG_COPY_OUT_MASK);//with copy