2 * MSMPEG4 backend for encoder and decoder
3 * copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef AVCODEC_MSMPEG4_H
23 #define AVCODEC_MSMPEG4_H
29 #include "mpegvideo.h"
30 #include "msmpeg4data.h"
33 #define INTER_INTRA_VLC_BITS 3
34 #define MB_NON_INTRA_VLC_BITS 9
35 #define MB_INTRA_VLC_BITS 9
37 #define II_BITRATE 128*1024
38 #define MBAC_BITRATE 50*1024
42 extern VLC ff_mb_non_intra_vlc[4];
43 extern VLC ff_inter_intra_vlc;
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);
53 int ff_msmpeg4_encode_init(MpegEncContext *s);
54 void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
55 void ff_msmpeg4_encode_ext_header(MpegEncContext *s);
56 void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64],
57 int motion_x, int motion_y);
59 int ff_msmpeg4_decode_init(AVCodecContext *avctx);
60 int ff_msmpeg4_decode_picture_header(MpegEncContext *s);
61 int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size);
62 int ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
63 int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block,
64 int n, int coded, const uint8_t *scan_table);
65 int ff_msmpeg4_pred_dc(MpegEncContext *s, int n,
66 int16_t **dc_val_ptr, int *dir_ptr);
69 #define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
70 CONFIG_MSMPEG4V2_DECODER || \
71 CONFIG_MSMPEG4V3_DECODER || \
72 CONFIG_WMV1_DECODER || \
73 CONFIG_WMV2_DECODER || \
75 #define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V2_ENCODER || \
76 CONFIG_MSMPEG4V3_ENCODER || \
77 CONFIG_WMV1_ENCODER || \
80 #endif /* AVCODEC_MSMPEG4_H */