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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 AVC_DECODER_H_
#define AVC_DECODER_H_
#include <media/stagefright/MediaBuffer.h>
#include <media/stagefright/MediaSource.h>
#include <utils/Vector.h>
struct tagAVCHandle;
namespace android {
struct AVCDecoder : public MediaSource,
public MediaBufferObserver {
AVCDecoder(const sp<MediaSource> &source);
virtual status_t start(MetaData *params);
virtual status_t stop();
virtual sp<MetaData> getFormat();
virtual status_t read(
MediaBuffer **buffer, const ReadOptions *options);
virtual void signalBufferReturned(MediaBuffer *buffer);
protected:
virtual ~AVCDecoder();
private:
sp<MediaSource> mSource;
bool mStarted;
sp<MetaData> mFormat;
Vector<MediaBuffer *> mCodecSpecificData;
tagAVCHandle *mHandle;
Vector<MediaBuffer *> mFrames;
MediaBuffer *mInputBuffer;
int64_t mAnchorTimeUs;
int64_t mNumSamplesOutput;
int64_t mPendingSeekTimeUs;
MediaSource::ReadOptions::SeekMode mPendingSeekMode;
int64_t mTargetTimeUs;
bool mSPSSeen;
bool mPPSSeen;
void addCodecSpecificData(const uint8_t *data, size_t size);
static int32_t ActivateSPSWrapper(
void *userData, unsigned int sizeInMbs, unsigned int numBuffers);
static int32_t BindFrameWrapper(
void *userData, int32_t index, uint8_t **yuv);
static void UnbindFrame(void *userData, int32_t index);
int32_t activateSPS(
unsigned int sizeInMbs, unsigned int numBuffers);
int32_t bindFrame(int32_t index, uint8_t **yuv);
void releaseFrames();
MediaBuffer *drainOutputBuffer();
AVCDecoder(const AVCDecoder &);
AVCDecoder &operator=(const AVCDecoder &);
};
} // namespace android
#endif // AVC_DECODER_H_
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