93 lines
1.9 KiB
C++
93 lines
1.9 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
// Copyright The Music Player Daemon Project
|
|
|
|
#include "TagFile.hxx"
|
|
#include "tag/Generic.hxx"
|
|
#include "tag/Handler.hxx"
|
|
#include "tag/Builder.hxx"
|
|
#include "fs/Path.hxx"
|
|
#include "decoder/DecoderList.hxx"
|
|
#include "decoder/DecoderPlugin.hxx"
|
|
#include "input/InputStream.hxx"
|
|
#include "input/LocalOpen.hxx"
|
|
|
|
#include <cassert>
|
|
|
|
class TagFileScan {
|
|
const Path path_fs;
|
|
const char *const suffix;
|
|
|
|
TagHandler &handler;
|
|
|
|
Mutex mutex;
|
|
InputStreamPtr is;
|
|
|
|
public:
|
|
TagFileScan(Path _path_fs, const char *_suffix,
|
|
TagHandler &_handler) noexcept
|
|
:path_fs(_path_fs), suffix(_suffix),
|
|
handler(_handler),
|
|
is(nullptr) {}
|
|
|
|
bool ScanFile(const DecoderPlugin &plugin) noexcept {
|
|
return plugin.ScanFile(path_fs, handler);
|
|
}
|
|
|
|
bool ScanStream(const DecoderPlugin &plugin) {
|
|
if (plugin.scan_stream == nullptr)
|
|
return false;
|
|
|
|
/* open the InputStream (if not already open) */
|
|
if (is == nullptr) {
|
|
is = OpenLocalInputStream(path_fs, mutex);
|
|
} else {
|
|
is->LockRewind();
|
|
}
|
|
|
|
/* now try the stream_tag() method */
|
|
return plugin.ScanStream(*is, handler);
|
|
}
|
|
|
|
bool Scan(const DecoderPlugin &plugin) {
|
|
return plugin.SupportsSuffix(suffix) &&
|
|
(ScanFile(plugin) || ScanStream(plugin));
|
|
}
|
|
};
|
|
|
|
bool
|
|
ScanFileTagsNoGeneric(Path path_fs, TagHandler &handler)
|
|
{
|
|
assert(!path_fs.IsNull());
|
|
|
|
/* check if there's a suffix and a plugin */
|
|
|
|
const auto *suffix = path_fs.GetExtension();
|
|
if (suffix == nullptr)
|
|
return false;
|
|
|
|
const auto suffix_utf8 = Path::FromFS(suffix).ToUTF8();
|
|
|
|
TagFileScan tfs(path_fs, suffix_utf8.c_str(), handler);
|
|
for (const auto &plugin : GetEnabledDecoderPlugins()) {
|
|
if (tfs.Scan(plugin))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ScanFileTagsWithGeneric(Path path, TagBuilder &builder,
|
|
AudioFormat *audio_format)
|
|
{
|
|
FullTagHandler h(builder, audio_format);
|
|
|
|
if (!ScanFileTagsNoGeneric(path, h))
|
|
return false;
|
|
|
|
if (builder.empty())
|
|
ScanGenericTags(path, h);
|
|
|
|
return true;
|
|
}
|