repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * H261 decoder | |
| 3 | * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> | |
| 4 | * Copyright (c) 2004 Maarten Daniels | |
| 5 | * | |
| 6 | * This file is part of FFmpeg. | |
| 7 | * | |
| 8 | * FFmpeg is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License as published by the Free Software Foundation; either | |
| 11 | * version 2.1 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * FFmpeg is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | * Lesser General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU Lesser General Public | |
| 19 | * License along with FFmpeg; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | /** | |
| 24 | * @file | |
| 25 | * h261codec. | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef AVCODEC_H261_H | |
| 29 | #define AVCODEC_H261_H | |
| 30 | ||
| 31 | #include "mpegvideo.h" | |
| 32 | #include "rl.h" | |
| 33 | ||
| 34 | /** | |
| 35 | * H261Context | |
| 36 | */ | |
| 37 | typedef struct H261Context { | |
| 38 | MpegEncContext s; | |
| 39 | ||
| 40 | int current_mba; | |
| 41 | int mba_diff; | |
| 42 | int mtype; | |
| 43 | int current_mv_x; | |
| 44 | int current_mv_y; | |
| 45 | int gob_number; | |
| 46 | int gob_start_code_skipped; // 1 if gob start code is already read before gob header is read | |
| 47 | } H261Context; | |
| 48 | ||
| 49 | #define MB_TYPE_H261_FIL 0x800000 | |
| 50 | ||
| 51 | extern uint8_t ff_h261_rl_table_store[2][2 * MAX_RUN + MAX_LEVEL + 3]; | |
| 52 | ||
| 53 | extern const uint8_t ff_h261_mba_code[35]; | |
| 54 | extern const uint8_t ff_h261_mba_bits[35]; | |
| 55 | extern const uint8_t ff_h261_mtype_code[10]; | |
| 56 | extern const uint8_t ff_h261_mtype_bits[10]; | |
| 57 | extern const int ff_h261_mtype_map[10]; | |
| 58 | extern const uint8_t ff_h261_mv_tab[17][2]; | |
| 59 | extern const uint8_t ff_h261_cbp_tab[63][2]; | |
| 60 | extern RLTable ff_h261_rl_tcoeff; | |
| 61 | ||
| 62 | void ff_h261_loop_filter(MpegEncContext *s); | |
| 63 | void ff_h261_common_init(void); | |
| 64 | ||
| 65 | int ff_h261_get_picture_format(int width, int height); | |
| 66 | void ff_h261_reorder_mb_index(MpegEncContext *s); | |
| 67 | void ff_h261_encode_mb(MpegEncContext *s, int16_t block[6][64], | |
| 68 | int motion_x, int motion_y); | |
| 69 | void ff_h261_encode_picture_header(MpegEncContext *s, int picture_number); | |
| 70 | void ff_h261_encode_init(MpegEncContext *s); | |
| 71 | ||
| 72 | #endif /* AVCODEC_H261_H */ |