Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * H261 decoder |
||
| 3 | * Copyright (c) 2002-2004 Michael Niedermayer |
||
| 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 */ |