FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/rv10enc.c
Date: 2021-09-16 08:47:15
Exec Total Coverage
Lines: 15 18 83.3%
Branches: 2 4 50.0%

Line Branch Exec Source
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 #include "rv10.h"
31
32 175 int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number)
33 {
34 175 int full_frame= 0;
35
36 175 align_put_bits(&s->pb);
37
38 175 put_bits(&s->pb, 1, 1); /* marker */
39
40 175 put_bits(&s->pb, 1, (s->pict_type == AV_PICTURE_TYPE_P));
41
42 175 put_bits(&s->pb, 1, 0); /* not PB-mframe */
43
44 175 put_bits(&s->pb, 5, s->qscale);
45
46 175 if (s->pict_type == AV_PICTURE_TYPE_I) {
47 /* specific MPEG like DC coding not used */
48 }
49 /* if multiple packets per frame are sent, the position at which
50 to display the macroblocks is coded here */
51
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175 if(!full_frame){
52
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175 if (s->mb_width * s->mb_height >= (1U << 12)) {
53 avpriv_report_missing_feature(s->avctx, "Encoding frames with %d (>= 4096) macroblocks",
54 s->mb_width * s->mb_height);
55 return AVERROR(ENOSYS);
56 }
57 175 put_bits(&s->pb, 6, 0); /* mb_x */
58 175 put_bits(&s->pb, 6, 0); /* mb_y */
59 175 put_bits(&s->pb, 12, s->mb_width * s->mb_height);
60 }
61
62 175 put_bits(&s->pb, 3, 0); /* ignored */
63 175 return 0;
64 }
65
66 const AVCodec ff_rv10_encoder = {
67 .name = "rv10",
68 .long_name = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
69 .type = AVMEDIA_TYPE_VIDEO,
70 .id = AV_CODEC_ID_RV10,
71 .priv_class = &ff_mpv_enc_class,
72 .priv_data_size = sizeof(MpegEncContext),
73 .init = ff_mpv_encode_init,
74 .encode2 = ff_mpv_encode_picture,
75 .close = ff_mpv_encode_end,
76 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
77 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
78 };
79