rv20enc.c
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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 Libav.
7  *
8  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
28 #include "mpegvideo.h"
29 #include "h263.h"
30 #include "put_bits.h"
31 
32 void 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;
40 
41  put_bits(&s->pb, 1, s->no_rounding);
42 
43  assert(s->f_code == 1);
44  assert(s->unrestricted_mv == 0);
45  assert(s->alt_inter_vlc == 0);
46  assert(s->umvplus == 0);
47  assert(s->modified_quant==1);
48  assert(s->loop_filter==1);
49 
51  if(s->h263_aic){
54  }else{
57  }
58 }
59 
61  .name = "rv20",
62  .type = AVMEDIA_TYPE_VIDEO,
63  .id = CODEC_ID_RV20,
64  .priv_data_size = sizeof(MpegEncContext),
66  .encode = MPV_encode_picture,
68  .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
69  .long_name= NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
70 };