ffmpeg/libavcodec/msmpeg4.h

   1 /*
   2  * MSMPEG4 backend for encoder and decoder
   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_MSMPEG4_H
  23 #define AVCODEC_MSMPEG4_H
  24
  25 #include <stdint.h>
  26
  27 #include "config.h"
  28 #include "avcodec.h"
  29 #include "mpegvideo.h"
  30 #include "msmpeg4data.h"
  31 #include "put_bits.h"
  32
  33 #define INTER_INTRA_VLC_BITS 3
  34 #define MB_NON_INTRA_VLC_BITS 9
  35 #define MB_INTRA_VLC_BITS 9
  36
  37 #define II_BITRATE 128*1024
  38 #define MBAC_BITRATE 50*1024
  39
  40 #define DC_MAX 119
  41
  42 extern VLC ff_mb_non_intra_vlc[4];
  43 extern VLC ff_inter_intra_vlc;
  44
  45 void ff_msmpeg4_code012(PutBitContext *pb, int n);
  46 void ff_msmpeg4_common_init(MpegEncContext *s);
  47 void ff_msmpeg4_encode_block(MpegEncContext * s, int16_t * block, int n);
  48 void ff_msmpeg4_handle_slices(MpegEncContext *s);
  49 void ff_msmpeg4_encode_motion(MpegEncContext * s, int mx, int my);
  50 int ff_msmpeg4_coded_block_pred(MpegEncContext * s, int n,
  51                                 uint8_t **coded_block_ptr);
  52 int ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
  53 int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block,
  54                             int n, int coded, const uint8_t *scan_table);
  55 int ff_msmpeg4_pred_dc(MpegEncContext *s, int n,
  56                        int16_t **dc_val_ptr, int *dir_ptr);
  57 int ff_wmv2_decode_mb(MpegEncContext *s, int16_t block[6][64]);
  58
  59 #define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
  60                                 CONFIG_MSMPEG4V2_DECODER || \
  61                                 CONFIG_MSMPEG4V3_DECODER || \
  62                                 CONFIG_WMV1_DECODER      || \
  63                                 CONFIG_WMV2_DECODER      || \
  64                                 CONFIG_VC1_DECODER)
  65 #define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V2_ENCODER || \
  66                                 CONFIG_MSMPEG4V3_ENCODER || \
  67                                 CONFIG_WMV1_ENCODER      || \
  68                                 CONFIG_WMV2_ENCODER)
  69
  70 #endif /* AVCODEC_MSMPEG4_H */