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Userland: Add matroska program to test parsing Matroska container files

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FalseHonesty 2021-06-05 16:12:06 -04:00 committed by Andreas Kling
parent 403bb07443
commit db20f7b6d8
Notes: sideshowbarker 2024-07-18 12:46:05 +09:00 
Author: https://github.com/FalseHonesty
Commit: https://github.com/SerenityOS/serenity/commit/db20f7b6d8c
Pull-request: https://github.com/SerenityOS/serenity/pull/7828
3 changed files with 55 additions and 0 deletions
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Base/home/anon/Videos/test-webm.webm Normal file
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Userland/Utilities/CMakeLists.txt
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@ -35,6 +35,7 @@ target_link_libraries(js LibJS LibLine)
target_link_libraries(keymap LibKeyboard)
target_link_libraries(lspci LibPCIDB)
target_link_libraries(man LibMarkdown)
target_link_libraries(matroska LibVideo)
target_link_libraries(md LibMarkdown)
target_link_libraries(misbehaving-application LibCore)
target_link_libraries(notify LibGUI)

54
Userland/Utilities/matroska.cpp Normal file
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@ -0,0 +1,54 @@
/*
* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibVideo/MatroskaReader.h>
int main(int, char**)
{
auto document = Video::MatroskaReader::parse_matroska_from_file("/home/anon/Videos/test-webm.webm");
if (!document) {
outln("Failed to parse :(");
return 1;
}
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 (const auto& track_entry : document->tracks()) {
const auto& 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) {
const auto& 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) {
const auto& 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 (const auto& cluster : document->clusters()) {
outln("\tCluster timestamp is {}", cluster.timestamp());
outln("\tCluster has {} blocks", cluster.blocks().size());
for (const auto& 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()));
}
}
}