gistfile1.txt

        /**
         * Callback from SurfaceTexture.OnFrameAvailableListener. Is called each time a new
         * camera frame for the SurfaceTexture is available.
         */
        @Override
        public void onFrameAvailable(SurfaceTexture) {
            synchronized (lock) {
                frameNotification = true;
                lock.notify();
            }
        }

        /**
         * Thread run loop. Will run until terminate() is called.
         */
        @Override
        public void run() {
            Log.i(TAG, "starting thread CameraProcThread");

            while (running) {
                boolean frameAvailable = false;
                synchronized (lock) {
                    lock.wait();
                    if (frameNotification) {
                        // Do release lock as soon as possible so if one more
                        // call to onFrameAvailable occurs there will be no need
                        // to wait.
                        frameAvailable = true;
                        frameNotification = false;
                    }
                }
                if (frameAvailable) {
                    processFrame();
                }
            }

            Log.i(TAG, "stopped thread CameraProcThread");
        }