70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright (c) 2009-2011 Intel Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef VIDEO_DECODER_MPEG4_H_
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#define VIDEO_DECODER_MPEG4_H_
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#include "VideoDecoderBase.h"
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class VideoDecoderMPEG4 : public VideoDecoderBase {
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public:
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VideoDecoderMPEG4(const char *mimeType);
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virtual ~VideoDecoderMPEG4();
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virtual Decode_Status start(VideoConfigBuffer *buffer);
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virtual void stop(void);
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virtual void flush(void);
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virtual Decode_Status decode(VideoDecodeBuffer *buffer);
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protected:
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virtual Decode_Status checkHardwareCapability();
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private:
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Decode_Status decodeFrame(VideoDecodeBuffer *buffer, vbp_data_mp42 *data);
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Decode_Status beginDecodingFrame(vbp_data_mp42 *data);
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Decode_Status continueDecodingFrame(vbp_data_mp42 *data);
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Decode_Status decodeSlice(vbp_data_mp42 *data, vbp_picture_data_mp42 *picData);
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Decode_Status setReference(VAPictureParameterBufferMPEG4 *picParam);
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Decode_Status startVA(vbp_data_mp42 *data);
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void updateFormatInfo(vbp_data_mp42 *data);
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private:
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// Value of VOP type defined here follows MP4 spec
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enum {
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MP4_VOP_TYPE_I = 0,
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MP4_VOP_TYPE_P = 1,
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MP4_VOP_TYPE_B = 2,
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MP4_VOP_TYPE_S = 3,
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};
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enum {
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MP4_SURFACE_NUMBER = 10,
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};
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uint64_t mLastVOPTimeIncrement;
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bool mExpectingNVOP; // indicate if future n-vop is a placeholder of a packed frame
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bool mSendIQMatrixBuf; // indicate if iq_matrix_buffer is sent to driver
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int32_t mLastVOPCodingType;
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bool mIsSyncFrame; // indicate if it is SyncFrame in container
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bool mIsShortHeader; // indicate if it is short header format
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VideoExtensionBuffer mExtensionBuffer;
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PackedFrameData mPackedFrame;
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};
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#endif /* VIDEO_DECODER_MPEG4_H_ */
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