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 */ 97