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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef CAMERA_SOURCE_H_
#define CAMERA_SOURCE_H_
#include <media/stagefright/MediaBuffer.h>
#include <media/stagefright/MediaSource.h>
#include <utils/List.h>
#include <utils/RefBase.h>
#include <utils/threads.h>
namespace android {
class ICamera;
class IMemory;
class Camera;
class CameraSource : public MediaSource, public MediaBufferObserver {
public:
static CameraSource *Create();
static CameraSource *CreateFromCamera(const sp<Camera> &camera);
virtual ~CameraSource();
virtual status_t start(MetaData *params = NULL);
virtual status_t stop();
virtual sp<MetaData> getFormat();
virtual status_t read(
MediaBuffer **buffer, const ReadOptions *options = NULL);
virtual void signalBufferReturned(MediaBuffer* buffer);
private:
friend class CameraSourceListener;
sp<Camera> mCamera;
sp<MetaData> mMeta;
Mutex mLock;
Condition mFrameAvailableCondition;
Condition mFrameCompleteCondition;
List<sp<IMemory> > mFramesReceived;
List<sp<IMemory> > mFramesBeingEncoded;
List<int64_t> mFrameTimes;
int64_t mStartTimeUs;
int64_t mFirstFrameTimeUs;
int64_t mLastFrameTimestampUs;
int32_t mNumFramesReceived;
int32_t mNumFramesEncoded;
int32_t mNumFramesDropped;
int32_t mNumGlitches;
int64_t mGlitchDurationThresholdUs;
bool mCollectStats;
bool mStarted;
CameraSource(const sp<Camera> &camera);
void dataCallbackTimestamp(
int64_t timestampUs, int32_t msgType, const sp<IMemory> &data);
void releaseQueuedFrames();
void releaseOneRecordingFrame(const sp<IMemory>& frame);
CameraSource(const CameraSource &);
CameraSource &operator=(const CameraSource &);
};
} // namespace android
#endif // CAMERA_SOURCE_H_
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