FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/pvfdec.c
Date: 2022-12-05 20:26:17
Exec Total Coverage
Lines: 3 23 13.0%
Functions: 1 2 50.0%
Branches: 1 16 6.2%

Line Branch Exec Source
1 /*
2 * PVF demuxer
3 * Copyright (c) 2012 Paul B Mahol
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavcodec/internal.h"
23 #include "avformat.h"
24 #include "internal.h"
25 #include "pcm.h"
26
27 6782 static int pvf_probe(const AVProbeData *p)
28 {
29
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✓ Branch 1 taken 6782 times.
6782 if (!memcmp(p->buf, "PVF1\n", 5))
30 return AVPROBE_SCORE_MAX;
31 6782 return 0;
32 }
33
34 static int pvf_read_header(AVFormatContext *s)
35 {
36 char buffer[32];
37 AVStream *st;
38 int bps, channels, sample_rate;
39
40 avio_skip(s->pb, 5);
41 ff_get_line(s->pb, buffer, sizeof(buffer));
42 if (sscanf(buffer, "%d %d %d",
43 &channels,
44 &sample_rate,
45 &bps) != 3)
46 return AVERROR_INVALIDDATA;
47
48 if (channels <= 0 || channels > FF_SANE_NB_CHANNELS ||
49 bps <= 0 || bps > INT_MAX / FF_SANE_NB_CHANNELS || sample_rate <= 0)
50 return AVERROR_INVALIDDATA;
51
52 st = avformat_new_stream(s, NULL);
53 if (!st)
54 return AVERROR(ENOMEM);
55
56 st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
57 st->codecpar->ch_layout.nb_channels = channels;
58 st->codecpar->sample_rate = sample_rate;
59 st->codecpar->codec_id = ff_get_pcm_codec_id(bps, 0, 1, 0xFFFF);
60 st->codecpar->bits_per_coded_sample = bps;
61 st->codecpar->block_align = bps * st->codecpar->ch_layout.nb_channels / 8;
62
63 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
64
65 return 0;
66 }
67
68 const AVInputFormat ff_pvf_demuxer = {
69 .name = "pvf",
70 .long_name = NULL_IF_CONFIG_SMALL("PVF (Portable Voice Format)"),
71 .read_probe = pvf_probe,
72 .read_header = pvf_read_header,
73 .read_packet = ff_pcm_read_packet,
74 .read_seek = ff_pcm_read_seek,
75 .extensions = "pvf",
76 .flags = AVFMT_GENERIC_INDEX,
77 };
78