blob: bcdb967401d2366b36aeba9290702119e5316de3
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 | |
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); |
58 | |
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); |
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 */ |
81 |