FFmpeg
msmpeg4dec.h
Go to the documentation of this file.
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 #define MB_INTRA_VLC_BITS 9
31 
32 extern VLC ff_mb_non_intra_vlc[4];
33 extern VLC ff_inter_intra_vlc;
34 
38 void ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
40  int n, int coded, const uint8_t *scan_table);
41 
42 #endif
mpegvideo.h
ff_inter_intra_vlc
VLC ff_inter_intra_vlc
Definition: msmpeg4dec.c:74
s
#define s(width, name)
Definition: cbs_vp9.c:256
ff_msmpeg4_decode_init
int ff_msmpeg4_decode_init(AVCodecContext *avctx)
Definition: msmpeg4dec.c:370
ff_msmpeg4_decode_motion
void ff_msmpeg4_decode_motion(MpegEncContext *s, int *mx_ptr, int *my_ptr)
Definition: msmpeg4dec.c:835
ff_msmpeg4_decode_ext_header
int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size)
Definition: msmpeg4dec.c:564
avcodec.h
AVCodecContext
main external API structure.
Definition: avcodec.h:398
VLC
Definition: vlc.h:31
ff_mb_non_intra_vlc
VLC ff_mb_non_intra_vlc[4]
Definition: msmpeg4dec.c:69
ff_msmpeg4_decode_picture_header
int ff_msmpeg4_decode_picture_header(MpegEncContext *s)
Definition: msmpeg4dec.c:408
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
ff_msmpeg4_decode_block
int ff_msmpeg4_decode_block(MpegEncContext *s, int16_t *block, int n, int coded, const uint8_t *scan_table)
Definition: msmpeg4dec.c:648
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:62