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LibGfx: Add initial ISO BMFF parsing and a utility to print file info

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Currently, the `isobmff` utility will only print the media file type
info from the FileTypeBox (major brand and compatible brands), as well
as the names and sizes of top-level boxes.
This commit is contained in:
Zaggy1024 2023-02-18 17:46:27 -06:00 • committed by Sam Atkins
parent 9caa0bda7d
commit 66c9696687
13 changed files with 510 additions and 0 deletions
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37
Tests/LibGfx/TestParseISOBMFF.cpp Normal file
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/*
* Copyright (c) 2023, Gregory Bertilson <zaggy1024@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/MemoryStream.h>
#include <LibCore/MappedFile.h>
#include <LibGfx/ImageFormats/ISOBMFF/Reader.h>
TEST_CASE(parse_animated_avif)
{
auto file = MUST(Core::MappedFile::map("./test-inputs/loop_forever.avif"sv));
auto reader = MUST(Gfx::ISOBMFF::Reader::create(MUST(try_make<FixedMemoryStream>(file->bytes()))));
auto boxes = MUST(reader.read_entire_file());
for (auto& box : boxes)
box->dump();
VERIFY(boxes.size() == 4);
VERIFY(boxes[0]->box_type() == Gfx::ISOBMFF::BoxType::FileTypeBox);
auto& file_type_box = static_cast<Gfx::ISOBMFF::FileTypeBox&>(*boxes[0]);
VERIFY(file_type_box.major_brand == Gfx::ISOBMFF::BrandIdentifier::avis);
VERIFY(file_type_box.minor_version == 0);
Vector<Gfx::ISOBMFF::BrandIdentifier, 7> expected_compatible_brands = {
Gfx::ISOBMFF::BrandIdentifier::avif,
Gfx::ISOBMFF::BrandIdentifier::avis,
Gfx::ISOBMFF::BrandIdentifier::msf1,
Gfx::ISOBMFF::BrandIdentifier::iso8,
Gfx::ISOBMFF::BrandIdentifier::mif1,
Gfx::ISOBMFF::BrandIdentifier::miaf,
Gfx::ISOBMFF::BrandIdentifier::MA1A,
};
VERIFY(file_type_box.compatible_brands == expected_compatible_brands);
}