1/* 2* Copyright (c) 2009-2011 Intel Corporation. All rights reserved. 3* 4* Licensed under the Apache License, Version 2.0 (the "License"); 5* you may not use this file except in compliance with the License. 6* You may obtain a copy of the License at 7* 8* http://www.apache.org/licenses/LICENSE-2.0 9* 10* Unless required by applicable law or agreed to in writing, software 11* distributed under the License is distributed on an "AS IS" BASIS, 12* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13* See the License for the specific language governing permissions and 14* limitations under the License. 15*/ 16 17#ifndef VIDEO_DECODER_MPEG2_H_ 18#define VIDEO_DECODER_MPEG2_H_ 19 20#include "VideoDecoderBase.h" 21 22#ifndef TIANMI_DEBUG 23#define TIANMI_DEBUG 24#endif 25 26 27class VideoDecoderMPEG2 : public VideoDecoderBase { 28public: 29 VideoDecoderMPEG2(const char *mimeType); 30 virtual ~VideoDecoderMPEG2(); 31 32 virtual Decode_Status start(VideoConfigBuffer *buffer); 33 virtual void stop(void); 34 virtual void flush(void); 35 virtual Decode_Status decode(VideoDecodeBuffer *buffer); 36 37protected: 38 virtual Decode_Status checkHardwareCapability(); 39 40private: 41 Decode_Status decodeFrame(VideoDecodeBuffer *buffer, vbp_data_mpeg2 *data); 42 //Decode_Status beginDecodingFrame(vbp_data_mp42 *data); 43 //Decode_Status continueDecodingFrame(vbp_data_mp42 *data); 44 Decode_Status decodePicture(vbp_data_mpeg2 *data, int picIndex); 45 Decode_Status decodeSlice(vbp_data_mpeg2 *data, int picIndex, int slcIndex); 46 Decode_Status setReference(VAPictureParameterBufferMPEG2 *picParam); 47 Decode_Status startVA(vbp_data_mpeg2 *data); 48 void updateFormatInfo(vbp_data_mpeg2 *data); 49 inline Decode_Status allocateVABufferIDs(int32_t number); 50 51private: 52 enum { 53 MPEG2_PICTURE_TYPE_I = 1, 54 MPEG2_PICTURE_TYPE_P = 2, 55 MPEG2_PICTURE_TYPE_B = 3 56 }; 57 58 enum { 59 MPEG2_PIC_STRUCT_TOP = 1, 60 MPEG2_PIC_STRUCT_BOTTOM = 2, 61 MPEG2_PIC_STRUCT_FRAME = 3 62 }; 63 64 enum { 65 MPEG2_SURFACE_NUMBER = 10, 66 }; 67 68 VABufferID *mBufferIDs; 69 int32_t mNumBufferIDs; 70}; 71 72#endif /* VIDEO_DECODER_MPEG2_H_ */ 73