FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/dnxhddec.c
Date: 2022-12-05 03:11:11
Exec Total Coverage
Lines: 12 14 85.7%
Functions: 1 1 100.0%
Branches: 11 16 68.8%

Line Branch Exec Source
1 /*
2 * RAW DNxHD (SMPTE VC-3) demuxer
3 * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@gmail.com>
4 * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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 #include "libavutil/intreadwrite.h"
24 #include "avformat.h"
25 #include "rawdec.h"
26 #include "libavcodec/dnxhddata.h"
27
28 6782 static int dnxhd_probe(const AVProbeData *p)
29 {
30 int w, h, compression_id;
31
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6782 if (p->buf_size < 0x2c)
32 1 return 0;
33
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6781 if (ff_dnxhd_parse_header_prefix(p->buf) == 0)
34 6735 return 0;
35 46 h = AV_RB16(p->buf + 0x18);
36 46 w = AV_RB16(p->buf + 0x1a);
37
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46 if (!w || !h)
38 return 0;
39 46 compression_id = AV_RB32(p->buf + 0x28);
40
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46 if ((compression_id < 1235 || compression_id > 1260) &&
41
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35 (compression_id < 1270 || compression_id > 1274))
42 return 0;
43 46 return AVPROBE_SCORE_MAX;
44 }
45
46 FF_DEF_RAWVIDEO_DEMUXER(dnxhd, "raw DNxHD (SMPTE VC-3)", dnxhd_probe, NULL, AV_CODEC_ID_DNXHD)
47