51ca69118a090b67dd51eeb2a73175f5e94b4d85
[libav.git] / libavcodec / rv10enc.c
1 /*
2 * RV10 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 * RV10 encoder
26 */
27
28 #include "mpegvideo.h"
29 #include "put_bits.h"
30
31 void rv10_encode_picture_header(MpegEncContext *s, int picture_number)
32 {
33 int full_frame= 0;
34
35 align_put_bits(&s->pb);
36
37 put_bits(&s->pb, 1, 1); /* marker */
38
39 put_bits(&s->pb, 1, (s->pict_type == FF_P_TYPE));
40
41 put_bits(&s->pb, 1, 0); /* not PB frame */
42
43 put_bits(&s->pb, 5, s->qscale);
44
45 if (s->pict_type == FF_I_TYPE) {
46 /* specific MPEG like DC coding not used */
47 }
48 /* if multiple packets per frame are sent, the position at which
49 to display the macroblocks is coded here */
50 if(!full_frame){
51 put_bits(&s->pb, 6, 0); /* mb_x */
52 put_bits(&s->pb, 6, 0); /* mb_y */
53 put_bits(&s->pb, 12, s->mb_width * s->mb_height);
54 }
55
56 put_bits(&s->pb, 3, 0); /* ignored */
57 }
58
59 AVCodec rv10_encoder = {
60 "rv10",
61 AVMEDIA_TYPE_VIDEO,
62 CODEC_ID_RV10,
63 sizeof(MpegEncContext),
64 MPV_encode_init,
65 MPV_encode_picture,
66 MPV_encode_end,
67 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
68 .long_name= NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
69 };