parser_hevc.h

/*
 *      vdr-plugin-vnsi - KODI server plugin for VDR
 *
 *      Copyright (C) 2005-2012 Team XBMC
 *      Copyright (C) 2015 Team KODI
 *
 *      http://kodi.tv
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with KODI; see the file COPYING.  If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 */

#ifndef VNSI_DEMUXER_HEVC_H
#define VNSI_DEMUXER_HEVC_H

#include "parser.h"

class cBitstream;

// --- cParserHEVC -------------------------------------------------

class cParserHEVC : public cParser
{
private:
  typedef struct hevc_private
  {
    struct PPS
    {
      int sps;
      int dependent_slice_segments_enabled_flag;
    } pps[64];

    struct VCL_NAL
    {
      int pic_parameter_set_id; // slice
      unsigned int first_slice_segment_in_pic_flag;
      unsigned int nal_unit_type;
    } vcl_nal;

  } hevc_private_t;

  typedef struct HDR_NAL_t
  {
     uint nal_unit_type;
     uint nuh_layer_id;
     uint nuh_temporal_id;
  } HDR_NAL;

  typedef struct mpeg_rational_s {
    int num;
    int den;
  } mpeg_rational_t;

  enum
  {
    NAL_TRAIL_N  = 0x00, // Coded slice segment of trailing picture
    NAL_TRAIL_R  = 0x01, // Coded slice segment of trailing picture
    NAL_TSA_N    = 0x02, // Coded slice segment of TSA picture
    NAL_TSA_R    = 0x03, // Coded slice segment of TSA picture
    NAL_STSA_N   = 0x04, // Coded slice segment of STSA picture
    NAL_STSA_R   = 0x05, // Coded slice segment of STSA picture
    NAL_RADL_N   = 0x06, // Coded slice segment of RADL picture
    NAL_RADL_R   = 0x07, // Coded slice segment of RADL picture
    NAL_RASL_N   = 0x08, // Coded slice segment of RASL picture
    NAL_RASL_R   = 0x09, // Coded slice segment of RASL picture

    NAL_BLA_W_LP = 0x10, // Coded slice segment of a BLA picture
    NAL_CRA_NUT  = 0x15, // Coded slice segment of a CRA picture
    NAL_RSV_IRAP_VCL22 = 0x16, // Reserved IRAP VCL NAL unit types
    NAL_RSV_IRAP_VCL23 = 0x17, // Reserved IRAP VCL NAL unit types

    NAL_VPS_NUT  = 0x20, // Video Parameter SET
    NAL_SPS_NUT  = 0x21, // Sequence Parameter Set
    NAL_PPS_NUT  = 0x22, // Picture Parameter Set
    NAL_AUD_NUT  = 0x23, // Access Unit Delimiter
    NAL_EOS_NUT  = 0x24, // End of Sequence
    NAL_EOB_NUT  = 0x25, // End of Bitstream
    NAL_FD_NUT   = 0x26, // Filler Data
    NAL_PFX_SEI_NUT  = 0x27, // Supplemental Enhancement Information 
    NAL_SFX_SEI_NUT  = 0x28, // Supplemental Enhancement Information

  };

  uint32_t        m_StartCode;
  int             m_LastStartPos;
  bool            m_NeedSPS;
  bool            m_NeedPPS;
  int             m_Width;
  int             m_Height;
  int             m_FpsScale;
  mpeg_rational_t m_PixelAspect;
  hevc_private    m_streamData;
  int64_t         m_DTS;
  int64_t         m_PTS;

  void Parse_HEVC(int buf_ptr, unsigned int NumBytesInNalUnit, bool *complete);
  void Parse_PPS(uint8_t *buf, int len);
  void Parse_SLH(uint8_t *buf, int len, HDR_NAL hdr, hevc_private::VCL_NAL &vcl);
  void Parse_SPS(uint8_t *buf, int len, HDR_NAL hdr);
  bool IsFirstVclNal(hevc_private::VCL_NAL &vcl);

public:
  cParserHEVC(int pID, cTSStream *stream, sPtsWrap *ptsWrap, bool observePtsWraps);
  virtual ~cParserHEVC();

  virtual void Parse(sStreamPacket *pkt, sStreamPacket *pkt_side_data);
  virtual void Reset();
};


#endif // VNSI_DEMUXER_HEVC_H