mirror of
https://github.com/LadybirdBrowser/ladybird.git
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67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (c) 2024, Nico Weber <thakis@chromium.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibCore/MappedFile.h>
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#include <LibGfx/ImageFormats/AnimationWriter.h>
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#include <LibGfx/ImageFormats/ImageDecoder.h>
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#include <LibGfx/ImageFormats/WebPWriter.h>
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struct Options {
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StringView in_path;
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StringView out_path;
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bool write_full_frames { false };
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};
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static ErrorOr<Options> parse_options(Main::Arguments arguments)
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{
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Options options;
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Core::ArgsParser args_parser;
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args_parser.add_positional_argument(options.in_path, "Path to input image file", "FILE");
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args_parser.add_option(options.out_path, "Path to output image file", "output", 'o', "FILE");
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args_parser.add_option(options.write_full_frames, "Do not store incremental frames. Produces larger files.", "write-full-frames");
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args_parser.parse(arguments);
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if (options.out_path.is_empty())
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return Error::from_string_literal("-o is required ");
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return options;
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}
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ErrorOr<int> ladybird_main(Main::Arguments arguments)
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{
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Options options = TRY(parse_options(arguments));
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// FIXME: Allow multiple single frames as input too, and allow manually setting their duration.
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auto file = TRY(Core::MappedFile::map(options.in_path));
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auto decoder = TRY(Gfx::ImageDecoder::try_create_for_raw_bytes(file->bytes()));
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if (!decoder)
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return Error::from_string_literal("Could not find decoder for input file");
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auto output_file = TRY(Core::File::open(options.out_path, Core::File::OpenMode::Write));
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auto output_stream = TRY(Core::OutputBufferedFile::create(move(output_file)));
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auto animation_writer = TRY([&]() -> ErrorOr<NonnullOwnPtr<Gfx::AnimationWriter>> {
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if (options.out_path.ends_with(".webp"sv))
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return Gfx::WebPWriter::start_encoding_animation(*output_stream, decoder->size(), decoder->loop_count());
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return Error::from_string_literal("Unable to find a encoder for the requested extension.");
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}());
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RefPtr<Gfx::Bitmap> last_frame;
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for (size_t i = 0; i < decoder->frame_count(); ++i) {
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auto frame = TRY(decoder->frame(i));
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if (options.write_full_frames) {
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TRY(animation_writer->add_frame(*frame.image, frame.duration));
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} else {
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TRY(animation_writer->add_frame_relative_to_last_frame(*frame.image, frame.duration, last_frame));
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last_frame = frame.image;
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}
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}
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return 0;
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}
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