ZslProcessorInterface.h revision 7b82efe7a376c882f8f938e1c41b8311a8cdda4a 
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
23namespace android {
24namespace camera2 {
25
26class Parameters;
27
28class ZslProcessorInterface : virtual public RefBase {
29public:
30
31    // Get ID for use with android.request.outputStreams / inputStreams
32    virtual int getStreamId() const = 0;
33
34    // Update the streams by recreating them if the size/format has changed
35    virtual status_t updateStream(const Parameters& params) = 0;
36
37    // Delete the underlying CameraDevice streams
38    virtual status_t deleteStream() = 0;
39
40    /**
41     * Submits a ZSL capture request (id = requestId)
42     *
43     * An appropriate ZSL buffer is selected by the closest timestamp,
44     * then we push that buffer to be reprocessed by the HAL.
45     * A capture request is created and submitted on behalf of the client.
46     */
47    virtual status_t pushToReprocess(int32_t requestId) = 0;
48
49    // Flush the ZSL buffer queue, freeing up all the buffers
50    virtual status_t clearZslQueue() = 0;
51
52    // (Debugging only) Dump the current state to the specified file descriptor
53    virtual void dump(int fd, const Vector<String16>& args) const = 0;
54};
55
56}; //namespace camera2
57}; //namespace android
58
59#endif
60