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ffmpeg / libavcodec / rv20enc.c @ 688621d7

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/*
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 * RV20 encoder
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 * Copyright (c) 2000,2001 Fabrice Bellard
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 * Copyright (c) 2002-2004 Michael Niedermayer
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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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 * @file libavcodec/rv20enc.c
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 * RV20 encoder
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 */
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#include "mpegvideo.h"
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#include "h263.h"
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#include "put_bits.h"
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void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
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    put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
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    put_bits(&s->pb, 1, 0);     /* unknown bit */
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    put_bits(&s->pb, 5, s->qscale);
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    put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
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    s->mb_x= s->mb_y= 0;
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    ff_h263_encode_mba(s);
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    put_bits(&s->pb, 1, s->no_rounding);
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    assert(s->f_code == 1);
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    assert(s->unrestricted_mv == 1);
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    assert(s->alt_inter_vlc == 0);
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    assert(s->umvplus == 0);
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    assert(s->modified_quant==1);
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    assert(s->loop_filter==1);
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    s->h263_aic= s->pict_type == FF_I_TYPE;
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    if(s->h263_aic){
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        s->y_dc_scale_table=
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        s->c_dc_scale_table= ff_aic_dc_scale_table;
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    }else{
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        s->y_dc_scale_table=
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        s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
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    }
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}
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AVCodec rv20_encoder = {
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    "rv20",
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    CODEC_TYPE_VIDEO,
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    CODEC_ID_RV20,
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    sizeof(MpegEncContext),
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    MPV_encode_init,
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    MPV_encode_picture,
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    MPV_encode_end,
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    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
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    .long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
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};