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3f3f45580a
Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
56 lines
2.6 KiB
C++
56 lines
2.6 KiB
C++
/*
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* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibMain/Main.h>
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#include <LibVideo/MatroskaReader.h>
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ErrorOr<int> serenity_main(Main::Arguments)
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{
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auto document = Video::MatroskaReader::parse_matroska_from_file("/home/anon/Videos/test-webm.webm"sv);
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if (!document) {
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return Error::from_string_literal("Failed to parse :(");
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}
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outln("DocType is {}", document->header().doc_type.characters());
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outln("DocTypeVersion is {}", document->header().doc_type_version);
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auto segment_information = document->segment_information();
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if (segment_information.has_value()) {
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outln("Timestamp scale is {}", segment_information.value().timestamp_scale());
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outln("Muxing app is \"{}\"", segment_information.value().muxing_app().as_string().to_string().characters());
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outln("Writing app is \"{}\"", segment_information.value().writing_app().as_string().to_string().characters());
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}
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outln("Document has {} tracks", document->tracks().size());
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for (auto const& track_entry : document->tracks()) {
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auto const& track = *track_entry.value;
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outln("\tTrack #{} with TrackID {}", track.track_number(), track.track_uid());
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outln("\tTrack has TrackType {}", static_cast<u8>(track.track_type()));
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outln("\tTrack has Language \"{}\"", track.language().characters());
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outln("\tTrack has CodecID \"{}\"", track.codec_id().characters());
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if (track.track_type() == Video::TrackEntry::TrackType::Video) {
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auto const video_track = track.video_track().value();
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outln("\t\tVideo is {} pixels wide by {} pixels tall", video_track.pixel_width, video_track.pixel_height);
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} else if (track.track_type() == Video::TrackEntry::TrackType::Audio) {
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auto const audio_track = track.audio_track().value();
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outln("\t\tAudio has {} channels with a bit depth of {}", audio_track.channels, audio_track.bit_depth);
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}
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}
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outln("Document has {} clusters", document->clusters().size());
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for (auto const& cluster : document->clusters()) {
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outln("\tCluster timestamp is {}", cluster.timestamp());
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outln("\tCluster has {} blocks", cluster.blocks().size());
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for (auto const& block : cluster.blocks()) {
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(void)block;
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outln("\t\tBlock for track #{} has {} frames", block.track_number(), block.frame_count());
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outln("\t\tBlock's timestamp is {}", block.timestamp());
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outln("\t\tBlock has lacing {}", static_cast<u8>(block.lacing()));
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}
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}
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return 0;
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}
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