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msmpeg4.h
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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);
47 void ff_msmpeg4_encode_block(MpegEncContext * s, int16_t * block, int n);
49 void ff_msmpeg4_encode_motion(MpegEncContext * s, int mx, int my);
51  uint8_t **coded_block_ptr);
52 
54 void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
56 void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64],
57  int motion_x, int motion_y);
58 
62 int ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
64  int n, int coded, const uint8_t *scan_table);
66  int16_t **dc_val_ptr, int *dir_ptr);
67 
68 
69 #define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
70  CONFIG_MSMPEG4V2_DECODER || \
71  CONFIG_MSMPEG4V3_DECODER || \
72  CONFIG_WMV1_DECODER || \
73  CONFIG_WMV2_DECODER || \
74  CONFIG_VC1_DECODER)
75 #define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V2_ENCODER || \
76  CONFIG_MSMPEG4V3_ENCODER || \
77  CONFIG_WMV1_ENCODER || \
78  CONFIG_WMV2_ENCODER)
79 
80 #endif /* AVCODEC_MSMPEG4_H */