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 "avcodec.h" 26 27 typedef struct roq_cell { 28 unsigned char y[4]; 29 unsigned char u, v; 30 } roq_cell; 31 32 typedef struct roq_qcell { 33 int idx[4]; 34 } roq_qcell; 35 36 typedef struct motion_vect { 37 int d[2]; 38 } motion_vect; 39 40 typedef struct RoqContext { 41 const AVClass *class; 42 AVCodecContext *avctx; 43 AVFrame *last_frame; 44 AVFrame *current_frame; 45 int width, height; 46 47 roq_cell cb2x2[256]; 48 roq_qcell cb4x4[256]; 49 } RoqContext; 50 51 #define RoQ_INFO 0x1001 52 #define RoQ_QUAD_CODEBOOK 0x1002 53 #define RoQ_QUAD_VQ 0x1011 54 #define RoQ_SOUND_MONO 0x1020 55 #define RoQ_SOUND_STEREO 0x1021 56 57 #define RoQ_ID_MOT 0x00 58 #define RoQ_ID_FCC 0x01 59 #define RoQ_ID_SLD 0x02 60 #define RoQ_ID_CCC 0x03 61 62 void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell); 63 void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell); 64 65 void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay); 66 67 void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay); 68 69 #endif /* AVCODEC_ROQVIDEO_H */ 70