| /* INTEL CONFIDENTIAL |
| * Copyright (c) 2009-2011 Intel Corporation. All rights reserved. |
| * |
| * The source code contained or described herein and all documents |
| * related to the source code ("Material") are owned by Intel |
| * Corporation or its suppliers or licensors. Title to the |
| * Material remains with Intel Corporation or its suppliers and |
| * licensors. The Material contains trade secrets and proprietary |
| * and confidential information of Intel or its suppliers and |
| * licensors. The Material is protected by worldwide copyright and |
| * trade secret laws and treaty provisions. No part of the Material |
| * may be used, copied, reproduced, modified, published, uploaded, |
| * posted, transmitted, distributed, or disclosed in any way without |
| * Intel's prior express written permission. |
| * |
| * No license under any patent, copyright, trade secret or other |
| * intellectual property right is granted to or conferred upon you |
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| */ |
| |
| #ifndef VIDEO_DECODER_AVC_H_ |
| #define VIDEO_DECODER_AVC_H_ |
| |
| #include "VideoDecoderBase.h" |
| |
| |
| class VideoDecoderAVC : public VideoDecoderBase { |
| public: |
| VideoDecoderAVC(const char *mimeType); |
| virtual ~VideoDecoderAVC(); |
| |
| virtual Decode_Status start(VideoConfigBuffer *buffer); |
| virtual void stop(void); |
| virtual void flush(void); |
| virtual Decode_Status decode(VideoDecodeBuffer *buffer); |
| |
| protected: |
| Decode_Status decodeFrame(VideoDecodeBuffer *buffer, vbp_data_h264 *data); |
| Decode_Status beginDecodingFrame(vbp_data_h264 *data); |
| Decode_Status continueDecodingFrame(vbp_data_h264 *data); |
| virtual Decode_Status decodeSlice(vbp_data_h264 *data, uint32_t picIndex, uint32_t sliceIndex); |
| Decode_Status setReference(VASliceParameterBufferH264 *sliceParam); |
| Decode_Status updateDPB(VAPictureParameterBufferH264 *picParam); |
| Decode_Status updateReferenceFrames(vbp_picture_data_h264 *picData); |
| void removeReferenceFromDPB(VAPictureParameterBufferH264 *picParam); |
| inline uint32_t getPOC(VAPictureH264 *pic); // Picture Order Count |
| inline VASurfaceID findSurface(VAPictureH264 *pic); |
| inline VideoSurfaceBuffer* findSurfaceBuffer(VAPictureH264 *pic); |
| inline void invalidateDPB(int toggle); |
| inline void clearAsReference(int toggle); |
| Decode_Status startVA(vbp_data_h264 *data); |
| void updateFormatInfo(vbp_data_h264 *data); |
| Decode_Status handleNewSequence(vbp_data_h264 *data); |
| bool isNewFrame(vbp_data_h264 *data); |
| int32_t getDPBSize(vbp_data_h264 *data); |
| |
| private: |
| struct DecodedPictureBuffer { |
| VideoSurfaceBuffer *surfaceBuffer; |
| uint32_t poc; // Picture Order Count |
| }; |
| |
| enum { |
| AVC_EXTRA_SURFACE_NUMBER = 6, |
| // maximum DPB (Decoded Picture Buffer) size |
| DPB_SIZE = 16, |
| REF_LIST_SIZE = 32, |
| }; |
| |
| // maintain 2 ping-pong decoded picture buffers |
| DecodedPictureBuffer mDPBs[2][DPB_SIZE]; |
| uint8_t mToggleDPB; // 0 or 1 |
| bool mErrorConcealment; |
| uint32_t mLastPictureFlags; |
| }; |
| |
| |
| |
| #endif /* VIDEO_DECODER_AVC_H_ */ |