1/*
2 * RV20 encoder
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23/**
24 * @file
25 * RV20 encoder
26 */
27
28#include "mpegvideo.h"
29#include "h263.h"
30#include "put_bits.h"
31
32void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number){
33    put_bits(&s->pb, 2, s->pict_type); //I 0 vs. 1 ?
34    put_bits(&s->pb, 1, 0);     /* unknown bit */
35    put_bits(&s->pb, 5, s->qscale);
36
37    put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
38    s->mb_x= s->mb_y= 0;
39    ff_h263_encode_mba(s);
40
41    put_bits(&s->pb, 1, s->no_rounding);
42
43    av_assert0(s->f_code == 1);
44    av_assert0(s->unrestricted_mv == 0);
45    av_assert0(s->alt_inter_vlc == 0);
46    av_assert0(s->umvplus == 0);
47    av_assert0(s->modified_quant==1);
48    av_assert0(s->loop_filter==1);
49
50    s->h263_aic= s->pict_type == AV_PICTURE_TYPE_I;
51    if(s->h263_aic){
52        s->y_dc_scale_table=
53        s->c_dc_scale_table= ff_aic_dc_scale_table;
54    }else{
55        s->y_dc_scale_table=
56        s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
57    }
58}
59
60FF_MPV_GENERIC_CLASS(rv20)
61
62AVCodec ff_rv20_encoder = {
63    .name           = "rv20",
64    .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
65    .type           = AVMEDIA_TYPE_VIDEO,
66    .id             = AV_CODEC_ID_RV20,
67    .priv_data_size = sizeof(MpegEncContext),
68    .init           = ff_MPV_encode_init,
69    .encode2        = ff_MPV_encode_picture,
70    .close          = ff_MPV_encode_end,
71    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
72    .priv_class     = &rv20_class,
73};
74