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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 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 "codec_internal.h" | ||
29 | #include "mpegvideo.h" | ||
30 | #include "mpegvideodata.h" | ||
31 | #include "mpegvideoenc.h" | ||
32 | #include "h263data.h" | ||
33 | #include "h263enc.h" | ||
34 | #include "put_bits.h" | ||
35 | #include "rv10enc.h" | ||
36 | |||
37 | 150 | int ff_rv20_encode_picture_header(MPVMainEncContext *const m) | |
38 | { | ||
39 | 150 | MPVEncContext *const s = &m->s; | |
40 | |||
41 | 150 | put_bits(&s->pb, 2, s->c.pict_type); //I 0 vs. 1 ? | |
42 | 150 | put_bits(&s->pb, 1, 0); /* unknown bit */ | |
43 | 150 | put_bits(&s->pb, 5, s->c.qscale); | |
44 | |||
45 | 150 | put_sbits(&s->pb, 8, s->c.picture_number); //FIXME wrong, but correct is not known | |
46 | 150 | s->c.mb_x = s->c.mb_y = 0; | |
47 | 150 | ff_h263_encode_mba(s); | |
48 | |||
49 | 150 | put_bits(&s->pb, 1, s->c.no_rounding); | |
50 | |||
51 |
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150 | av_assert0(s->c.f_code == 1); |
52 |
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150 | av_assert0(!s->c.unrestricted_mv); |
53 |
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150 | av_assert0(!s->c.alt_inter_vlc); |
54 |
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150 | av_assert0(!s->c.umvplus); |
55 |
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150 | av_assert0(s->c.modified_quant==1); |
56 |
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150 | av_assert0(s->c.loop_filter==1); |
57 | |||
58 | 150 | s->c.h263_aic = s->c.pict_type == AV_PICTURE_TYPE_I; | |
59 |
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150 | if (s->c.h263_aic) { |
60 | 15 | s->c.y_dc_scale_table = | |
61 | 15 | s->c.c_dc_scale_table = ff_aic_dc_scale_table; | |
62 | }else{ | ||
63 | 135 | s->c.y_dc_scale_table = | |
64 | 135 | s->c.c_dc_scale_table = ff_mpeg1_dc_scale_table; | |
65 | } | ||
66 | 150 | return 0; | |
67 | } | ||
68 | |||
69 | const FFCodec ff_rv20_encoder = { | ||
70 | .p.name = "rv20", | ||
71 | CODEC_LONG_NAME("RealVideo 2.0"), | ||
72 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
73 | .p.id = AV_CODEC_ID_RV20, | ||
74 | .p.priv_class = &ff_mpv_enc_class, | ||
75 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
76 | .priv_data_size = sizeof(MPVMainEncContext), | ||
77 | .init = ff_mpv_encode_init, | ||
78 | FF_CODEC_ENCODE_CB(ff_mpv_encode_picture), | ||
79 | .close = ff_mpv_encode_end, | ||
80 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, | ||
81 | CODEC_PIXFMTS(AV_PIX_FMT_YUV420P), | ||
82 | .color_ranges = AVCOL_RANGE_MPEG, | ||
83 | }; | ||
84 |