libavcodec/msmpeg4dec.h

   1 /*
   2  * MSMPEG4 decoder header
   3  * copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef AVCODEC_MSMPEG4DEC_H
  23 #define AVCODEC_MSMPEG4DEC_H
  24
  25 #include "avcodec.h"
  26 #include "mpegvideo.h"
  27
  28 #define INTER_INTRA_VLC_BITS 3
  29 #define MB_NON_INTRA_VLC_BITS 9
  30
  31 extern const VLCElem *ff_mb_non_intra_vlc[4];
  32 extern VLCElem ff_inter_intra_vlc[8];
  33
  34 int ff_msmpeg4_decode_init(AVCodecContext *avctx);
  35 int ff_msmpeg4_decode_picture_header(MpegEncContext *s);
  36 int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size);
  37 void ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
  38 int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block,
  39                             int n, int coded, const uint8_t *scan_table);
  40
  41 #endif