PeerStreamer

/*

 * Copyright (C) 2003 Mike Melanson

 * Copyright (C) 2003 Dr. Tim Ferguson

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * FFmpeg is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef FFMPEG_ROQVIDEO_H

#define FFMPEG_ROQVIDEO_H

#include "avcodec.h"

#include "dsputil.h"

#include "random.h"

typedef struct {

    unsigned char y[4];

    unsigned char u, v;

} roq_cell;

typedef struct {

    int idx[4];

} roq_qcell;

typedef struct {

    int d[2];

} motion_vect;

typedef struct RoqContext {

    AVCodecContext *avctx;

    DSPContext dsp;

    AVFrame frames[2];

    AVFrame *last_frame;

    AVFrame *current_frame;

    int first_frame;

    roq_cell cb2x2[256];

    roq_qcell cb4x4[256];

    unsigned char *buf;

    int size;

    int width, height;

    /* Encoder only data */

    AVRandomState randctx;

    uint64_t lambda;

    motion_vect *this_motion4;

    motion_vect *last_motion4;

    motion_vect *this_motion8;

    motion_vect *last_motion8;

    unsigned int framesSinceKeyframe;

    AVFrame *frame_to_enc;

    uint8_t *out_buf;

} RoqContext;

#define RoQ_INFO              0x1001

#define RoQ_QUAD_CODEBOOK     0x1002

#define RoQ_QUAD_VQ           0x1011

#define RoQ_SOUND_MONO        0x1020

#define RoQ_SOUND_STEREO      0x1021

#define RoQ_ID_MOT              0x00

#define RoQ_ID_FCC              0x01

#define RoQ_ID_SLD              0x02

#define RoQ_ID_CCC              0x03

void ff_apply_vector_2x2(RoqContext *ri, int x, int y, roq_cell *cell);

void ff_apply_vector_4x4(RoqContext *ri, int x, int y, roq_cell *cell);

void ff_apply_motion_4x4(RoqContext *ri, int x, int y, int deltax, int deltay);

void ff_apply_motion_8x8(RoqContext *ri, int x, int y, int deltax, int deltay);

#endif /* FFMPEG_ROQVIDEO_H */