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/*
* Copyright (c) 2009-2011 Intel Corporation. All rights reserved.
*
* 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 VIDEO_DECODER_MPEG4_H_
#define VIDEO_DECODER_MPEG4_H_
#include "VideoDecoderBase.h"
class VideoDecoderMPEG4 : public VideoDecoderBase {
public:
VideoDecoderMPEG4(const char *mimeType);
virtual ~VideoDecoderMPEG4();
virtual Decode_Status start(VideoConfigBuffer *buffer);
virtual void stop(void);
virtual void flush(void);
virtual Decode_Status decode(VideoDecodeBuffer *buffer);
protected:
virtual Decode_Status checkHardwareCapability();
private:
Decode_Status decodeFrame(VideoDecodeBuffer *buffer, vbp_data_mp42 *data);
Decode_Status beginDecodingFrame(vbp_data_mp42 *data);
Decode_Status continueDecodingFrame(vbp_data_mp42 *data);
Decode_Status decodeSlice(vbp_data_mp42 *data, vbp_picture_data_mp42 *picData);
Decode_Status setReference(VAPictureParameterBufferMPEG4 *picParam);
Decode_Status startVA(vbp_data_mp42 *data);
void updateFormatInfo(vbp_data_mp42 *data);
private:
// Value of VOP type defined here follows MP4 spec
enum {
MP4_VOP_TYPE_I = 0,
MP4_VOP_TYPE_P = 1,
MP4_VOP_TYPE_B = 2,
MP4_VOP_TYPE_S = 3,
};
enum {
MP4_SURFACE_NUMBER = 10,
};
uint64_t mLastVOPTimeIncrement;
bool mExpectingNVOP; // indicate if future n-vop is a placeholder of a packed frame
bool mSendIQMatrixBuf; // indicate if iq_matrix_buffer is sent to driver
int32_t mLastVOPCodingType;
bool mIsSyncFrame; // indicate if it is SyncFrame in container
bool mIsShortHeader; // indicate if it is short header format
VideoExtensionBuffer mExtensionBuffer;
PackedFrameData mPackedFrame;
};
#endif /* VIDEO_DECODER_MPEG4_H_ */
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