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ffmpeg / libavcodec / roqvideo.h @ 2912e87a

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/*
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 * Copyright (C) 2003 Mike Melanson
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 * Copyright (C) 2003 Dr. Tim Ferguson
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 *
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 * This file is part of Libav.
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 *
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 * Libav 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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 * Libav 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 Libav; 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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#ifndef AVCODEC_ROQVIDEO_H
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#define AVCODEC_ROQVIDEO_H
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#include "libavutil/lfg.h"
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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 {
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    int d[2];
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} motion_vect;
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struct RoqTempData;
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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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    roq_cell cb2x2[256];
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    roq_qcell cb4x4[256];
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    const unsigned char *buf;
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    int size;
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    int width, height;
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    /* Encoder only data */
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    AVLFG randctx;
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    uint64_t lambda;
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    motion_vect *this_motion4;
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    motion_vect *last_motion4;
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    motion_vect *this_motion8;
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    motion_vect *last_motion8;
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    unsigned int framesSinceKeyframe;
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    AVFrame *frame_to_enc;
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    uint8_t *out_buf;
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    struct RoqTempData *tmpData;
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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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#endif /* AVCODEC_ROQVIDEO_H */