CAMERA_ERROR_EVICTED fix

app/src/main/java/net/ossrs/yasea/demo/MainActivity.java

@@ -232,6 +232,15 @@ public boolean onOptionsItemSelected(MenuItem item) {
         return super.onOptionsItemSelected(item);
     }
 
+    @Override
+    protected void onStart() {
+        super.onStart();
+        if(mPublisher.getCamera() == null){
+            //if the camera was busy and available again
+            mPublisher.startCamera();
+        }
+    }                           
+
     @Override
     protected void onResume() {
         super.onResume();

library/src/main/java/net/ossrs/yasea/SrsCameraView.java

@@ -288,7 +288,7 @@ public boolean startCamera() {
         }
 
         Camera.Parameters params = mCamera.getParameters();
-        params.setPictureSize(mPreviewWidth, mPreviewHeight);
+        //params.setPictureSize(mPreviewWidth, mPreviewHeight);
         params.setPreviewSize(mPreviewWidth, mPreviewHeight);
         int[] range = adaptFpsRange(SrsEncoder.VFPS, params.getSupportedPreviewFpsRange());
         params.setPreviewFpsRange(range[0], range[1]);
@@ -347,7 +347,7 @@ public void stopCamera() {
         }
     }
 
-    private Camera openCamera() {
+    protected Camera openCamera() {
         Camera camera;
         if (mCamId < 0) {
             Camera.CameraInfo info = new Camera.CameraInfo();
@@ -374,6 +374,15 @@ private Camera openCamera() {
 
         try {
             camera = Camera.open(mCamId);
+
+            camera.setErrorCallback(new Camera.ErrorCallback(){
+                @Override
+                public void onError(int error, Camera camera) {
+                    //may be Camera.CAMERA_ERROR_EVICTED - Camera was disconnected due to use by higher priority user
+                    stopCamera();
+                }
+            });            
+
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -431,9 +440,13 @@ public boolean startTorch() {
 
     public void stopTorch() {
         if (mCamera != null) {
-            Camera.Parameters params = mCamera.getParameters();
-            params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
-            mCamera.setParameters(params);
+            try {
+                Camera.Parameters params = mCamera.getParameters();
+                params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
+                mCamera.setParameters(params);
+            }catch (Exception e){
+                e.printStackTrace();
+            }
         }
     }
 

library/src/main/java/net/ossrs/yasea/SrsPublisher.java

@@ -245,6 +245,10 @@ public double getmSamplingFps() {
     public int getCameraId() {
         return mCameraView.getCameraId();
     }
+
+    public Camera getCamera() {
+        return mCameraView.getCamera();
+    }     
 
     public void setPreviewResolution(int width, int height) {
         int resolution[] = mCameraView.setPreviewResolution(width, height);