| 1 | /* |
| 2 | * Copyright (C) 2003 Mike Melanson |
| 3 | * Copyright (C) 2003 Dr. Tim Ferguson |
| 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_ROQVIDEO_H |
| 23 | #define AVCODEC_ROQVIDEO_H |
| 24 | |
| 25 | #include "libavutil/lfg.h" |
| 26 | #include "avcodec.h" |
| 27 | #include "bytestream.h" |
| 28 | |
| 29 | typedef struct roq_cell { |
| 30 | unsigned char y[4]; |
| 31 | unsigned char u, v; |
| 32 | } roq_cell; |
| 33 | |
| 34 | typedef struct roq_qcell { |
| 35 | int idx[4]; |
| 36 | } roq_qcell; |
| 37 | |
| 38 | typedef struct motion_vect { |
| 39 | int d[2]; |
| 40 | } motion_vect; |
| 41 | |
| 42 | struct RoqTempData; |
| 43 | |
| 44 | typedef struct RoqContext { |
| 45 | |
| 46 | const AVClass *class; |
| 47 | AVCodecContext *avctx; |
| 48 | AVFrame *last_frame; |
| 49 | AVFrame *current_frame; |
| 50 | int first_frame; |
| 51 | |
| 52 | roq_cell cb2x2[256]; |
| 53 | roq_qcell cb4x4[256]; |
| 54 | |
| 55 | GetByteContext gb; |
| 56 | int width, height; |
| 57 | |
| 58 | /* Encoder only data */ |
| 59 | AVLFG randctx; |
| 60 | uint64_t lambda; |
| 61 | |
| 62 | motion_vect *this_motion4; |
| 63 | motion_vect *last_motion4; |
| 64 | |
| 65 | motion_vect *this_motion8; |
| 66 | motion_vect *last_motion8; |
| 67 | |
| 68 | unsigned int framesSinceKeyframe; |
| 69 | |
| 70 | const AVFrame *frame_to_enc; |
| 71 | uint8_t *out_buf; |
| 72 | struct RoqTempData *tmpData; |
| 73 | |
| 74 | int quake3_compat; // Quake 3 compatibility option |
| 75 | |
| 76 | } RoqContext; |
| 77 | |
| 78 | #define RoQ_INFO 0x1001 |
| 79 | #define RoQ_QUAD_CODEBOOK 0x1002 |
| 80 | #define RoQ_QUAD_VQ 0x1011 |
| 81 | #define RoQ_SOUND_MONO 0x1020 |
| 82 | #define RoQ_SOUND_STEREO 0x1021 |
| 83 | |
| 84 | #define RoQ_ID_MOT 0x00 |
| 85 | #define RoQ_ID_FCC 0x01 |
| 86 | #define RoQ_ID_SLD 0x02 |
| 87 | #define RoQ_ID_CCC 0x03 |
| 88 | |
| 89 | void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell); |
| 90 | void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell); |
| 91 | |
| 92 | void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay); |
| 93 | |
| 94 | void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay); |
| 95 | |
| 96 | #endif /* AVCODEC_ROQVIDEO_H */ |