1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibMain/Main.h>
#include <LibVideo/MatroskaReader.h>
ErrorOr<int> serenity_main(Main::Arguments)
{
auto document = Video::MatroskaReader::parse_matroska_from_file("/home/anon/Videos/test-webm.webm");
if (!document) {
return Error::from_string_literal("Failed to parse :("sv);
}
outln("DocType is {}", document->header().doc_type.characters());
outln("DocTypeVersion is {}", document->header().doc_type_version);
auto segment_information = document->segment_information();
if (segment_information.has_value()) {
outln("Timestamp scale is {}", segment_information.value().timestamp_scale());
outln("Muxing app is \"{}\"", segment_information.value().muxing_app().as_string().to_string().characters());
outln("Writing app is \"{}\"", segment_information.value().writing_app().as_string().to_string().characters());
}
outln("Document has {} tracks", document->tracks().size());
for (auto const& track_entry : document->tracks()) {
auto const& track = *track_entry.value;
outln("\tTrack #{} with TrackID {}", track.track_number(), track.track_uid());
outln("\tTrack has TrackType {}", static_cast<u8>(track.track_type()));
outln("\tTrack has Language \"{}\"", track.language().characters());
outln("\tTrack has CodecID \"{}\"", track.codec_id().characters());
if (track.track_type() == Video::TrackEntry::TrackType::Video) {
auto const video_track = track.video_track().value();
outln("\t\tVideo is {} pixels wide by {} pixels tall", video_track.pixel_width, video_track.pixel_height);
} else if (track.track_type() == Video::TrackEntry::TrackType::Audio) {
auto const audio_track = track.audio_track().value();
outln("\t\tAudio has {} channels with a bit depth of {}", audio_track.channels, audio_track.bit_depth);
}
}
outln("Document has {} clusters", document->clusters().size());
for (auto const& cluster : document->clusters()) {
outln("\tCluster timestamp is {}", cluster.timestamp());
outln("\tCluster has {} blocks", cluster.blocks().size());
for (auto const& block : cluster.blocks()) {
(void)block;
outln("\t\tBlock for track #{} has {} frames", block.track_number(), block.frame_count());
outln("\t\tBlock's timestamp is {}", block.timestamp());
outln("\t\tBlock has lacing {}", static_cast<u8>(block.lacing()));
}
}
return 0;
}
|
