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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSORINTERFACE_H
     18 #define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSORINTERFACE_H
     19 
     20 #include <utils/Errors.h>
     21 #include <utils/RefBase.h>
     22 #include <utils/String16.h>
     23 #include <utils/Vector.h>
     24 
     25 namespace android {
     26 namespace camera2 {
     27 
     28 class Parameters;
     29 
     30 class ZslProcessorInterface : virtual public RefBase {
     31 public:
     32 
     33     // Get ID for use with android.request.outputStreams / inputStreams
     34     virtual int getStreamId() const = 0;
     35 
     36     // Update the streams by recreating them if the size/format has changed
     37     virtual status_t updateStream(const Parameters& params) = 0;
     38 
     39     // Delete the underlying CameraDevice streams
     40     virtual status_t deleteStream() = 0;
     41 
     42     // Clear any additional state necessary before the CameraDevice is disconnected
     43     virtual status_t disconnect();
     44 
     45     /**
     46      * Submits a ZSL capture request (id = requestId)
     47      *
     48      * An appropriate ZSL buffer is selected by the closest timestamp,
     49      * then we push that buffer to be reprocessed by the HAL.
     50      * A capture request is created and submitted on behalf of the client.
     51      */
     52     virtual status_t pushToReprocess(int32_t requestId) = 0;
     53 
     54     // Flush the ZSL buffer queue, freeing up all the buffers
     55     virtual status_t clearZslQueue() = 0;
     56 
     57     // (Debugging only) Dump the current state to the specified file descriptor
     58     virtual void dump(int fd, const Vector<String16>& args) const = 0;
     59 };
     60 
     61 }; //namespace camera2
     62 }; //namespace android
     63 
     64 #endif
     65