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70 lines
1.9 KiB
70 lines
1.9 KiB
18 years ago
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/*
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* Copyright (C) 2003 the ffmpeg project
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "avcodec.h"
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#include "dsputil.h"
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typedef struct {
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unsigned char y[4];
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unsigned char u, v;
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} roq_cell;
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typedef struct {
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int idx[4];
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} roq_qcell;
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typedef struct RoqContext {
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AVCodecContext *avctx;
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DSPContext dsp;
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AVFrame frames[2];
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AVFrame *last_frame;
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AVFrame *current_frame;
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int first_frame;
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int y_stride;
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int c_stride;
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roq_cell cells[256];
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roq_qcell qcells[256];
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unsigned char *buf;
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int size;
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} RoqContext;
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#define RoQ_INFO 0x1001
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#define RoQ_QUAD_CODEBOOK 0x1002
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#define RoQ_QUAD_VQ 0x1011
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#define RoQ_SOUND_MONO 0x1020
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#define RoQ_SOUND_STEREO 0x1021
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#define RoQ_ID_MOT 0x00
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#define RoQ_ID_FCC 0x01
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#define RoQ_ID_SLD 0x02
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#define RoQ_ID_CCC 0x03
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void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);
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void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);
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void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);
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void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);
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