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/*
* Copyright (C) Texas Instruments - http://www.ti.com/
*
* 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 FRAMEDECODER_H_
#define FRAMEDECODER_H_
#include <utils/Vector.h>
#include <utils/StrongPointer.h>
#include "CameraHal.h"
namespace Ti {
namespace Camera {
enum DecoderType {
DecoderType_MJPEG,
DecoderType_H264
};
enum BufferStatus {
BufferStatus_Unknown,
BufferStatus_InQueued,
BufferStatus_InWaitForEmpty,
BufferStatus_InDecoded,
BufferStatus_OutQueued,
BufferStatus_OutWaitForFill,
BufferStatus_OutFilled
};
enum DecoderState {
DecoderState_Uninitialized,
DecoderState_Initialized,
DecoderState_Running,
DecoderState_Requested_Stop,
DecoderState_Stoppped
};
class MediaBuffer: public virtual android::RefBase {
public:
MediaBuffer()
: bufferId(-1), buffer(0), filledLen(0), size(0),
mOffset(0), mTimestamp(0), mStatus(BufferStatus_Unknown) {
}
MediaBuffer(int id, void* buffer, size_t buffSize = 0)
: bufferId(id), buffer(buffer), filledLen(0), size(buffSize),
mOffset(0), mTimestamp(0), mStatus(BufferStatus_Unknown) {
}
virtual ~MediaBuffer() {
}
int bufferId;
void* buffer;
int filledLen;
size_t size;
nsecs_t getTimestamp() const {
return mTimestamp;
}
void setTimestamp(nsecs_t ts) {
mTimestamp = ts;
}
BufferStatus getStatus() const {
return mStatus;
}
void setStatus(BufferStatus status) {
mStatus = status;
}
android::Mutex& getLock() const {
return mLock;
}
uint32_t getOffset() const {
return mOffset;
}
void setOffset(uint32_t offset) {
mOffset = offset;
}
private:
uint32_t mOffset;
nsecs_t mTimestamp;
BufferStatus mStatus;
mutable android::Mutex mLock;
};
struct DecoderParameters {
int width;
int height;
int inputBufferCount;
int outputBufferCount;
};
class FrameDecoder {
public:
FrameDecoder();
virtual ~FrameDecoder();
void configure(const DecoderParameters& config);
status_t start();
void stop();
void release();
void flush();
status_t queueInputBuffer(int id);
status_t dequeueInputBuffer(int &id);
status_t queueOutputBuffer(int id);
status_t dequeueOutputBuffer(int &id);
void registerOutputBuffers(android::Vector< android::sp<MediaBuffer> > *outBuffers) {
android::AutoMutex lock(mLock);
mOutQueue.clear();
mOutBuffers = outBuffers;
}
void registerInputBuffers(android::Vector< android::sp<MediaBuffer> > *inBuffers) {
android::AutoMutex lock(mLock);
mInQueue.clear();
mInBuffers = inBuffers;
}
virtual bool getPaddedDimensions(size_t &width, size_t &height) {
return false;
}
void setHal(CameraHal* hal) {
mCameraHal = hal;
}
protected:
virtual void doConfigure(const DecoderParameters& config) = 0;
virtual void doProcessInputBuffer() = 0;
virtual status_t doStart() = 0;
virtual void doStop() = 0;
virtual void doFlush() = 0;
virtual void doRelease() = 0;
DecoderParameters mParams;
android::Vector<int> mInQueue;
android::Vector<int> mOutQueue;
android::Vector< android::sp<MediaBuffer> >* mInBuffers;
android::Vector< android::sp<MediaBuffer> >* mOutBuffers;
CameraHal* mCameraHal;
private:
DecoderState mState;
android::Mutex mLock;
};
} // namespace Camera
} // namespace Ti
#endif /* FRAMEDECODER_H_ */
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