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79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "song/DetachedSong.hxx"
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#include "SongSave.hxx"
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#include "config/Data.hxx"
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#include "decoder/DecoderList.hxx"
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#include "decoder/DecoderPlugin.hxx"
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#include "fs/Path.hxx"
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#include "fs/NarrowPath.hxx"
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#include "io/StdioOutputStream.hxx"
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#include "io/BufferedOutputStream.hxx"
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#include "util/PrintException.hxx"
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#include "util/UriExtract.hxx"
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#include <cassert>
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#include <stdexcept>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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static const DecoderPlugin *
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FindContainerDecoderPlugin(std::string_view suffix)
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{
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return decoder_plugins_find([suffix](const DecoderPlugin &plugin){
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return plugin.container_scan != nullptr &&
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plugin.SupportsSuffix(suffix);
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});
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}
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static const DecoderPlugin *
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FindContainerDecoderPlugin(Path path)
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{
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const auto path_utf8 = path.ToUTF8Throw();
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const auto suffix = uri_get_suffix(path_utf8);
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if (suffix.empty())
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return nullptr;
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return FindContainerDecoderPlugin(suffix);
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}
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int main(int argc, char **argv)
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try {
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if (argc != 2) {
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fprintf(stderr, "Usage: ContainerScan PATH\n");
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return EXIT_FAILURE;
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}
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const FromNarrowPath path = argv[1];
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const ScopeDecoderPluginsInit decoder_plugins_init({});
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const auto *plugin = FindContainerDecoderPlugin(path);
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if (plugin == nullptr) {
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fprintf(stderr, "No decoder found for this file\n");
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return EXIT_FAILURE;
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}
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const auto v = plugin->container_scan(path);
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if (v.empty()) {
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fprintf(stderr, "File is not a container\n");
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return EXIT_FAILURE;
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}
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StdioOutputStream sos(stdout);
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BufferedOutputStream bos(sos);
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for (const auto &song : v)
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song_save(bos, song);
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bos.Flush();
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return EXIT_SUCCESS;
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} catch (...) {
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PrintException(std::current_exception());
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return EXIT_FAILURE;
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}
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