text: /* ------------------------------------------------------------------
   * Copyright (C) 1998-2009 PacketVideo
   *
   * 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.
   * -------------------------------------------------------------------
   */
  /*
  -------------------------------------------------------------------
                      MPEG-4 Simple Profile Video Decoder
  -------------------------------------------------------------------
  *
  * This software module was originally developed by
  *
  *   Paulo Nunes (IST / ACTS-MoMuSyS)
  *
  * in the course of development of the MPEG-4 Video (ISO/IEC 14496-2) standard.
  * This software module is an implementation of a part of one or more MPEG-4
  * Video (ISO/IEC 14496-2) tools as specified by the MPEG-4 Video (ISO/IEC
  * 14496-2) standard.
  *
  * ISO/IEC gives users of the MPEG-4 Video (ISO/IEC 14496-2) standard free
  * license to this software module or modifications thereof for use in hardware
  * or software products claiming conformance to the MPEG-4 Video (ISO/IEC
  * 14496-2) standard.
  *
  * Those intending to use this software module in hardware or software products
  * are advised that its use may infringe existing patents. The original
  * developer of this software module and his/her company, the subsequent
  * editors and their companies, and ISO/IEC have no liability for use of this
  * software module or modifications thereof in an implementation. Copyright is
  * not released for non MPEG-4 Video (ISO/IEC 14496-2) Standard conforming
  * products.
  *
  * ACTS-MoMuSys partners retain full right to use the code for his/her own
  * purpose, assign or donate the code to a third party and to inhibit third
  * parties from using the code for non MPEG-4 Video (ISO/IEC 14496-2) Standard
  * conforming products. This copyright notice must be included in all copies or
  * derivative works.
  *
  * Copyright (c) 1996
  *
  *****************************************************************************/
  
  /***********************************************************HeaderBegin*******
  *
  * File: vlc_dec.h
  *
  * Author:   Paulo Nunes (IST) - Paulo.Nunes@lx.it.pt
  * Created:
  *
  * Description: This is the header file for the "vlcdec" module.
  *
  * Notes:
  *
  * Modified: 9-May-96 Paulo Nunes: Reformatted. New headers.
  *
  * ================= PacketVideo Modification ================================
  *
  *       3/30/00  : initial modification to the
  *                new PV-Decoder Lib format.
  *
  ***********************************************************CommentEnd********/
  
  
  #ifndef _VLCDECODE_H_
  #define _VLCDECODE_H_
  
  #include "mp4lib_int.h"
  
  #define VLC_ERROR_DETECTED(x) ((x) < 0)
  #define VLC_IO_ERROR    -1
  #define VLC_CODE_ERROR  -2
  #define VLC_MB_STUFFING -4
  #define VLC_NO_LAST_BIT -5
  
  #define VLC_ESCAPE_CODE  7167
  
  #ifdef __cplusplus
  extern "C"
  {
  #endif /* __cplusplus */
  
      PV_STATUS DecodeUserData(BitstreamDecVideo *stream);
      PV_STATUS PV_GetMBvectors(VideoDecData *, uint mode);
      PV_STATUS PV_DecodeMBVec(BitstreamDecVideo *stream, MOT *mv_x, MOT *mv_y, int f_code_f);
      PV_STATUS PV_DeScaleMVD(int f_code, int residual, int vlc_code_mag,  MOT *vector);
  
      PV_STATUS PV_VlcDecMV(BitstreamDecVideo *stream, int *mv);
      int PV_VlcDecMCBPC_com_intra(BitstreamDecVideo *stream);
      int PV_VlcDecMCBPC_com_inter(BitstreamDecVideo *stream);
  #ifdef PV_ANNEX_IJKT_SUPPORT
      int PV_VlcDecMCBPC_com_inter_H263(BitstreamDecVideo *stream);
      PV_STATUS VlcDecTCOEFShortHeader_AnnexI(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS VlcDecTCOEFShortHeader_AnnexT(BitstreamDecVideo *stream, Tcoef *pTcoef); /* ANNEX_T */
      PV_STATUS VlcDecTCOEFShortHeader_AnnexIT(BitstreamDecVideo *stream, Tcoef *pTcoef);
  #endif
      int PV_VlcDecCBPY(BitstreamDecVideo *stream, int intra);
  
      PV_STATUS VlcDecTCOEFIntra(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS VlcDecTCOEFInter(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS VlcDecTCOEFShortHeader(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS RvlcDecTCOEFIntra(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS RvlcDecTCOEFInter(BitstreamDecVideo *stream, Tcoef *pTcoef);
      PV_STATUS PV_VlcDecIntraDCPredSize(BitstreamDecVideo *stream, int compnum, uint *DC_size);
  
  #ifdef __cplusplus
  }
  #endif /* __cplusplus  */
  
  #endif
  
  