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2ba45a60 DM |
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 ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number) | |
32 | { | |
33 | int full_frame= 0; | |
34 | ||
35 | avpriv_align_put_bits(&s->pb); | |
36 | ||
37 | put_bits(&s->pb, 1, 1); /* marker */ | |
38 | ||
39 | put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P)); | |
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 == AV_PICTURE_TYPE_I) { | |
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 | FF_MPV_GENERIC_CLASS(rv10) | |
60 | ||
61 | AVCodec ff_rv10_encoder = { | |
62 | .name = "rv10", | |
63 | .long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"), | |
64 | .type = AVMEDIA_TYPE_VIDEO, | |
65 | .id = AV_CODEC_ID_RV10, | |
66 | .priv_data_size = sizeof(MpegEncContext), | |
67 | .init = ff_mpv_encode_init, | |
68 | .encode2 = ff_mpv_encode_picture, | |
69 | .close = ff_mpv_encode_end, | |
70 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, | |
71 | .priv_class = &rv10_class, | |
72 | }; |