Audio file metadata and thumbnails
This commit is contained in:
Robin E. R. Davies
+667
-98
@@ -8,10 +8,10 @@
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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@@ -21,128 +21,697 @@
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* SOFTWARE.
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*/
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#include "AudioFiles.hpp"
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#include <filesystem>
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#include <limits>
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#include <stdexcept>
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#include "AudioFileMetadataReader.hpp"
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#include "Locale.hpp"
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#include "MimeTypes.hpp"
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#include <stdexcept>
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#include "AudioFilesDb.hpp"
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#include "AudioFiles.hpp"
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#include <filesystem>
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#include <limits>
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using namespace pipedal;
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#undef _GLIBCXX_DEBUG // Ensure we are not in debug mode, as this file is not compatible with it.
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#include "SQLiteCpp/SQLiteCpp.h"
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using namespace pipedal;
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using namespace pipedal::impl;
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namespace fs = std::filesystem;
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static constexpr size_t INVALID_INDEX = std::numeric_limits<size_t>::max();
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namespace fs = std::filesystem;
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namespace {
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class DirectoryList {
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public:
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DirectoryList(const fs::path&path);
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const std::vector<std::filesystem::path> &files() {
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return files_;
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}
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private:
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std::vector<std::filesystem::path> files_;
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};
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class AudioFileInfoImpl: public AudioFileInfo {
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public:
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virtual ~AudioFileInfoImpl() { }
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protected:
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virtual std::string GetNextAudioFile(const std::string&path) override;
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virtual std::string GetPreviousAudioFile(const std::string&path) override;
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};
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/////////////////////
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DirectoryList::DirectoryList(const fs::path&path)
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void AudioDirectoryInfo::SetTemporaryDirectory(const std::filesystem::path &path)
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{
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temporaryDirectory = path;
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}
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void AudioDirectoryInfo::SetResourceDirectory(const std::filesystem::path &path)
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{
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resourceDirectory = path;
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}
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std::filesystem::path AudioDirectoryInfo::GetTemporaryDirectory() const
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{
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if (temporaryDirectory.empty())
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{
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for (const auto&dirEntry: fs::directory_iterator(path))
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return "/tmp/pipedal/audiofiles"; // used during testing.
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}
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return temporaryDirectory;
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}
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std::filesystem::path AudioDirectoryInfo::GetResourceDirectory() const
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{
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if (resourceDirectory.empty())
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{
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fs::path path = fs::current_path() / "vite/public/img"; // take from the source directory during testing.
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return "/usr/share/pipedal/audiofiles"; // used during testing.
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}
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return resourceDirectory;
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}
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std::filesystem::path AudioDirectoryInfo::temporaryDirectory;
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std::filesystem::path AudioDirectoryInfo::resourceDirectory;
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namespace
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{
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static int64_t fileTimeToInt64(const fs::file_time_type &fileTime)
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{
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return fileTime.time_since_epoch().count();
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}
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static int64_t GetLastWriteTime(const fs::path &file)
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{
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try
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{
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if (dirEntry.is_regular_file())
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return fileTimeToInt64(fs::last_write_time(file));
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}
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catch (const std::exception &e)
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{
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return 0; // Return 0 if we cannot get the last write time.
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}
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}
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class AudioDirectoryInfoImpl : public AudioDirectoryInfo
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{
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public:
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AudioDirectoryInfoImpl(const std::string &path)
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: path(path)
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{
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}
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virtual ~AudioDirectoryInfoImpl() {}
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virtual std::vector<AudioFileMetadata> GetFiles() override;
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virtual ThumbnailTemporaryFile GetThumbnail(const std::string &fileNameOnly, int32_t width, int32_t height) override;
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virtual ThumbnailTemporaryFile DefaultThumbnailTemporaryFile() override;
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virtual size_t TestGetNumberOfThumbnails() override; // test use only.
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virtual void TestSetIndexPath(const std::filesystem::path &path) override
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{
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indexPath = path;
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}
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virtual std::string GetNextAudioFile(const std::string &fileNameOnly) override;
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virtual std::string GetPreviousAudioFile(const std::string &fileNameOnly) override;
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private:
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std::filesystem::path indexPath;
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void OpenAudioDb();
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ThumbnailTemporaryFile GetUnindexedThunbnail(const std::string &fileNameOnly, int32_t width, int32_t height);
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std::shared_ptr<AudioFilesDb> audioFilesDb;
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fs::path path;
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using id_t = int64_t;
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std::vector<DbFileInfo> QueryTracks();
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std::vector<DbFileInfo> UpdateDbFiles();
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void DbSetThumbnailType(
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int64_t idFile,
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ThumbnailType thumbnailType,
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const std::string &thumbnailFile = "",
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int64_t thumbnailLastModified = 0);
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void DbSetThumbnailType(
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const std::string &fileNameOnly,
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ThumbnailType thumbnailType,
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const std::string &thumbnailFile = "",
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int64_t thumbnailLastModified = 0);
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void DbDeleteFile(DbFileInfo *dbFile);
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void UpdateMetadata(DbFileInfo *dbFile);
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static constexpr int DB_VERSION = 1;
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std::filesystem::path GetFolderFile() const;
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};
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}
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AudioDirectoryInfo::Ptr AudioDirectoryInfo::Create(const std::string &path)
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{
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return std::shared_ptr<AudioDirectoryInfo>(
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new AudioDirectoryInfoImpl(path));
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}
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std::vector<AudioFileMetadata> AudioDirectoryInfoImpl::GetFiles()
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{
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OpenAudioDb();
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std::vector<DbFileInfo> dbFiles = UpdateDbFiles();
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std::vector<AudioFileMetadata> metadataResults;
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for (const auto &dbFile : dbFiles)
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{
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AudioFileMetadata metadata{dbFile}; // slice copy of just the metadata.
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metadataResults.push_back(std::move(metadata));
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}
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return metadataResults;
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}
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std::vector<DbFileInfo> AudioDirectoryInfoImpl::QueryTracks()
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{
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if (audioFilesDb)
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{
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return audioFilesDb->QueryTracks();
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}
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return std::vector<DbFileInfo>();
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}
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static bool isAudioExtension(const std::string &extension)
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{
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return MimeTypes::instance().AudioExtensions().contains(extension);
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}
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static bool HasPositionInfo(const std::vector<DbFileInfo> &dbFiles)
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{
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for (const auto &file : dbFiles)
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{
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if (file.position() != -1)
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{
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return true;
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}
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}
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return false;
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}
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static int DefaultedSortOrder(int track)
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{
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if (track < 0)
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{
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return std::numeric_limits<int>::max();
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}
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return track;
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}
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static void SortDbFiles(std::vector<DbFileInfo> &dbFiles, Collator::ptr &collator)
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{
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std::sort(
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dbFiles.begin(), dbFiles.end(),
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[collator](const DbFileInfo &a, const DbFileInfo &b)
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{
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if (a.position() != b.position())
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{
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fs::path t = dirEntry.path();
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if (!t.filename().string().starts_with('.'))
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return DefaultedSortOrder(a.position()) < DefaultedSortOrder(b.position());
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}
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if (a.track() != b.track())
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{
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return DefaultedSortOrder(a.track()) < DefaultedSortOrder(b.track());
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}
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if (a.title() != b.title())
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{
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return collator->Compare(a.title(), b.title()) < 0;
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}
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if (a.album() != b.album())
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{
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return collator->Compare(a.title(), b.title()) < 0;
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}
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return false;
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;
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});
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}
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std::vector<DbFileInfo> AudioDirectoryInfoImpl::UpdateDbFiles()
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{
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std::shared_ptr<SQLite::Transaction> transaction;
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if (audioFilesDb)
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{
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transaction = audioFilesDb->transaction();
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}
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std::vector<DbFileInfo> dbFiles = QueryTracks();
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std::vector<DbFileInfo> newFiles;
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bool updateRequired = false;
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std::map<std::string, DbFileInfo *> nameToDbRecord;
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for (size_t i = 0; i < dbFiles.size(); ++i)
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{
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auto *pFile = &(dbFiles[i]);
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nameToDbRecord[pFile->fileName()] = pFile;
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}
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for (auto dirEntry : fs::directory_iterator(path))
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{
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if (!dirEntry.is_directory())
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{
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auto path = dirEntry.path();
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std::string name = path.filename();
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std::string extension = path.extension();
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if (isAudioExtension(extension))
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{
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int64_t lastModified = fileTimeToInt64(dirEntry.last_write_time());
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auto f = nameToDbRecord.find(name);
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if (f != nameToDbRecord.end())
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{
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files_.push_back(std::move(t));
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DbFileInfo *dbFile = f->second;
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dbFile->present(true);
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if (dbFile->lastModified() != lastModified)
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{
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if (audioFilesDb)
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{
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audioFilesDb->DeleteThumbnails(dbFile->idFile());
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}
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dbFile->thumbnailType(ThumbnailType::Unknown);
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dbFile->thumbnailFile("");
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dbFile->thumbnailLastModified(0);
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UpdateMetadata(dbFile);
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dbFile->dirty(true);
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updateRequired = true;
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}
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}
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else
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{
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DbFileInfo newFile;
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newFile.fileName(name);
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newFile.idFile(-1);
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newFile.dirty(true);
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newFile.present(true);
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UpdateMetadata(&newFile);
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newFiles.push_back(std::move(newFile));
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updateRequired = true;
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}
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}
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}
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}
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std::string AudioFileInfoImpl::GetNextAudioFile(const std::string&path_) {
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try
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for (auto i = dbFiles.begin(); i != dbFiles.end(); ++i)
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{
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if (!i->present())
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{
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fs::path path {path_};
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if (fs::exists(path) && fs::is_regular_file(path))
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{
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DirectoryList directoryList(path.parent_path());
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size_t index = INVALID_INDEX;
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auto &files = directoryList.files();
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for (size_t i= 0; i < files.size(); ++i)
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{
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if (files[i] == path)
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{
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size_t next = i;
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if (next == files.size()-1)
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{
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next = 0;
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} else {
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++next;
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}
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return files[next];
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}
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}
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}
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} catch (const std::exception&e)
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{
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DbDeleteFile(&*i);
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dbFiles.erase(i);
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updateRequired = true;
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--i;
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}
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return "";
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}
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std::string AudioFileInfoImpl::GetPreviousAudioFile(const std::string&path_)
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// refresh folder file names.
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auto folderFile = GetFolderFile();
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int64_t folderLastModified = 0;
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std::string folderFileName;
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if (!folderFile.empty() && fs::exists(folderFile))
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{
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folderLastModified = GetLastWriteTime(folderFile);
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folderFileName = folderFile.filename().string();
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}
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for (auto &dbFile : dbFiles)
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{
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if (dbFile.thumbnailType() == ThumbnailType::Unknown)
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{
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if (!folderFileName.empty())
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{
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dbFile.thumbnailType(ThumbnailType::Folder);
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dbFile.thumbnailFile(folderFileName);
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dbFile.thumbnailLastModified(folderLastModified);
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dbFile.dirty(true);
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updateRequired = true;
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}
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}
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else if (dbFile.thumbnailType() == ThumbnailType::Folder)
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{
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// Check if the folder file has changed.
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if (folderFileName.empty())
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{
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// no more folder file. update accordingly.
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dbFile.thumbnailType(ThumbnailType::None);
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dbFile.thumbnailFile("");
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dbFile.thumbnailLastModified(0);
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dbFile.dirty(true);
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updateRequired = true;
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}
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else
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{
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// folder file has changed. update accordingly.
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if (dbFile.thumbnailFile() != folderFileName ||
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dbFile.thumbnailLastModified() != folderLastModified)
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{
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dbFile.thumbnailFile(folderFileName);
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dbFile.thumbnailLastModified(folderLastModified);
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dbFile.dirty(true);
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updateRequired = true;
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}
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}
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}
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}
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if (!updateRequired && newFiles.empty())
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{
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// Nothing to do.
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return dbFiles;
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}
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Locale::ptr locale = Locale::GetInstance();
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Collator::ptr collator = locale->GetCollator();
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if (!HasPositionInfo(dbFiles))
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{
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dbFiles.insert(dbFiles.end(), newFiles.begin(), newFiles.end());
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SortDbFiles(dbFiles, collator);
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}
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else
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{
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// We have position info, so we need to update the position.
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SortDbFiles(dbFiles, collator);
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SortDbFiles(newFiles, collator);
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dbFiles.insert(dbFiles.end(), newFiles.begin(), newFiles.end());
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for (size_t i = 0; i < dbFiles.size(); ++i)
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{
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auto newPosition = static_cast<int32_t>(i);
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if (newPosition != dbFiles[i].position())
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{
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dbFiles[i].dirty(true);
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}
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dbFiles[i].position(newPosition);
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}
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}
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for (auto &dbFile : dbFiles)
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{
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if (dbFile.dirty())
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{
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if (audioFilesDb)
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{
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audioFilesDb->WriteFile(&dbFile);
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}
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dbFile.dirty(false);
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}
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}
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if (transaction)
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{
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transaction->commit();
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transaction = nullptr;
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}
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return dbFiles;
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}
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void AudioDirectoryInfoImpl::DbDeleteFile(DbFileInfo *dbFile)
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{
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if (this->audioFilesDb)
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{
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audioFilesDb->DeleteFile(dbFile);
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}
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}
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// All the varous cover art files I found on my personal music collection.
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// These are used to find the cover art for a directory. Based on
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// scanning a large music collection that have been tagged by various tools
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// including iTunes, Windows Media Playe, and a variety of taggers.
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//
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// Files are listed in order of preference.
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static std::vector<std::filesystem::path> COVER_ART_FILES = {
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"Folder.jpg", // window media player/explorer.
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"Cover.jpg", // itunes.
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"folder.jpg", // Linux audio players plex, kodi, Rythmbox, Amorok, Clementine.
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"cover.jpg", // Linux audio players plex, kodi, Rythmbox, Amorok, Clementine.
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"Artwork.jpg", // itunes.
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"Front.jpg",
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"front.jpg", // linux.
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"AlbumArt.jpg",
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"albumArt.jpg",
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"Frontcover.jpg",
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"AlbumArtSmall.jpg"};
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fs::path AudioDirectoryInfoImpl::GetFolderFile() const
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{
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for (const auto &coverArtFile : COVER_ART_FILES)
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{
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fs::path thumbnailPath = path / coverArtFile;
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if (fs::exists(thumbnailPath))
|
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{
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return thumbnailPath;
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}
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}
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return {};
|
||||
}
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||||
|
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void AudioDirectoryInfoImpl::DbSetThumbnailType(
|
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int64_t idFile,
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||||
ThumbnailType thumbnailType,
|
||||
const std::string &thumbnailFile,
|
||||
int64_t thumbnailLastModified)
|
||||
{
|
||||
if (audioFilesDb)
|
||||
{
|
||||
audioFilesDb->UpdateThumbnailInfo(
|
||||
idFile,
|
||||
thumbnailType,
|
||||
thumbnailFile,
|
||||
thumbnailLastModified);
|
||||
}
|
||||
}
|
||||
void AudioDirectoryInfoImpl::DbSetThumbnailType(
|
||||
const std::string&fileNameOnly,
|
||||
ThumbnailType thumbnailType,
|
||||
const std::string &thumbnailFile,
|
||||
int64_t thumbnailLastModified)
|
||||
{
|
||||
if (audioFilesDb)
|
||||
{
|
||||
audioFilesDb->UpdateThumbnailInfo(
|
||||
fileNameOnly,
|
||||
thumbnailType,
|
||||
thumbnailFile,
|
||||
thumbnailLastModified);
|
||||
}
|
||||
}
|
||||
|
||||
static ThumbnailTemporaryFile GetFolderTemporaryFile(const fs::path &folderFile)
|
||||
{
|
||||
ThumbnailTemporaryFile result;
|
||||
result.SetNonDeletedPath(folderFile, MimeTypes::instance().MimeTypeFromExtension(folderFile.extension().string()));
|
||||
return result;
|
||||
}
|
||||
ThumbnailTemporaryFile AudioDirectoryInfoImpl::GetThumbnail(const std::string &fileNameOnly, int32_t width, int32_t height)
|
||||
{
|
||||
fs::path file = this->path / fileNameOnly;
|
||||
OpenAudioDb();
|
||||
if (audioFilesDb)
|
||||
{
|
||||
try
|
||||
{
|
||||
fs::path path {path_};
|
||||
if (fs::exists(path) && fs::is_regular_file(path))
|
||||
|
||||
ThumbnailInfo thumbnailInfo = audioFilesDb->GetThumbnailInfo(file.filename().string());
|
||||
|
||||
if (thumbnailInfo.thumbnailType() == ThumbnailType::Folder)
|
||||
{
|
||||
DirectoryList directoryList(path.parent_path());
|
||||
size_t index = INVALID_INDEX;
|
||||
auto &files = directoryList.files();
|
||||
for (size_t i= 0; i < files.size(); ++i)
|
||||
fs::path thumbnailFile = path / thumbnailInfo.thumbnailFile();
|
||||
if (!fs::exists(thumbnailFile) ||
|
||||
fileTimeToInt64(fs::last_write_time(thumbnailFile)) !=
|
||||
thumbnailInfo.thumbnailLastModified())
|
||||
{
|
||||
if (files[i] == path)
|
||||
{
|
||||
size_t previous = i;
|
||||
if (previous == 0)
|
||||
{
|
||||
previous = files.size()-1;
|
||||
} else {
|
||||
--previous;
|
||||
}
|
||||
return files[previous];
|
||||
}
|
||||
// reset the thumbnail type and try again.
|
||||
audioFilesDb->UpdateThumbnailInfo(
|
||||
fileNameOnly,
|
||||
ThumbnailType::Unknown);
|
||||
return GetThumbnail(fileNameOnly, width, height);
|
||||
}
|
||||
fs::path fullFolderPath = this->path / thumbnailInfo.thumbnailFile();
|
||||
return GetFolderTemporaryFile(fullFolderPath);
|
||||
}
|
||||
if (thumbnailInfo.thumbnailType() == ThumbnailType::Embedded)
|
||||
{
|
||||
std::vector<uint8_t> blob = audioFilesDb->GetEmbeddedThumbnail(fileNameOnly, width, height);
|
||||
|
||||
}
|
||||
} catch (const std::exception&e)
|
||||
{
|
||||
if (!blob.empty())
|
||||
{
|
||||
ThumbnailTemporaryFile tempFile = ThumbnailTemporaryFile::CreateTemporaryFile(GetTemporaryDirectory(), "image/jpeg");
|
||||
|
||||
tempFile.SetMimeType("image/jpeg");
|
||||
// write buffer to tempFile.GetPath()
|
||||
std::ofstream outFile(tempFile.Path(), std::ios::binary);
|
||||
if (!outFile)
|
||||
{
|
||||
throw std::runtime_error("Failed to open temporary file for writing: " + tempFile.Path().string());
|
||||
}
|
||||
outFile.write((const char *)blob.data(), blob.size());
|
||||
return tempFile;
|
||||
}
|
||||
else
|
||||
{
|
||||
// fall through and generate the indexed thumbnail.
|
||||
}
|
||||
}
|
||||
|
||||
if (thumbnailInfo.thumbnailType() == ThumbnailType::None)
|
||||
{
|
||||
return DefaultThumbnailTemporaryFile();
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
auto tempFile = pipedal::GetAudioFileThumbnail(
|
||||
this->path / fileNameOnly,
|
||||
width, height,
|
||||
GetTemporaryDirectory());
|
||||
auto thumbnailPath = tempFile.Path();
|
||||
ThumbnailTemporaryFile result;
|
||||
result.Attach(tempFile.Detach(), "image/jpeg");
|
||||
|
||||
// Read the thumbnail data from the temporary file.
|
||||
std::ifstream thumbnailStream(thumbnailPath, std::ios::binary);
|
||||
if (!thumbnailStream)
|
||||
{
|
||||
throw std::runtime_error("Failed to open thumbnail file: " + thumbnailPath.string());
|
||||
}
|
||||
std::vector<uint8_t> thumbnailData(
|
||||
(std::istreambuf_iterator<char>(thumbnailStream)),
|
||||
std::istreambuf_iterator<char>());
|
||||
|
||||
if (!thumbnailData.empty())
|
||||
{
|
||||
audioFilesDb->AddThumbnail(
|
||||
fileNameOnly,
|
||||
width,
|
||||
height,
|
||||
thumbnailData);
|
||||
|
||||
// Set the MIME type for the thumbnail.
|
||||
result.SetMimeType("image/jpeg");
|
||||
audioFilesDb->UpdateThumbnailInfo(
|
||||
fileNameOnly,
|
||||
ThumbnailType::Embedded);
|
||||
return result;
|
||||
}
|
||||
else
|
||||
{
|
||||
throw std::runtime_error("Thumbnail data is empty.");
|
||||
}
|
||||
return result;
|
||||
}
|
||||
catch (const std::exception &_)
|
||||
{
|
||||
}
|
||||
auto folderFile = GetFolderFile();
|
||||
if (!folderFile.empty())
|
||||
{
|
||||
// We have a folder thumbnail, set the type and return it.
|
||||
fs::path t = this->path / folderFile;
|
||||
int64_t lastModified = fileTimeToInt64(fs::last_write_time(t));
|
||||
DbSetThumbnailType(fileNameOnly, ThumbnailType::Folder, folderFile, lastModified);
|
||||
auto fullFolderPath = this->path / folderFile;
|
||||
return GetFolderTemporaryFile(fullFolderPath);
|
||||
}
|
||||
DbSetThumbnailType(
|
||||
fileNameOnly,
|
||||
ThumbnailType::None); // No thumbnail available, set to None.
|
||||
return DefaultThumbnailTemporaryFile();
|
||||
}
|
||||
catch (const std::exception &e)
|
||||
{
|
||||
}
|
||||
return "";
|
||||
|
||||
}
|
||||
return GetUnindexedThunbnail(fileNameOnly, width, height);
|
||||
}
|
||||
|
||||
}
|
||||
ThumbnailTemporaryFile AudioDirectoryInfoImpl::GetUnindexedThunbnail(const std::string &fileNameOnly, int32_t width, int32_t height)
|
||||
{
|
||||
fs::path file = this->path / fileNameOnly;
|
||||
ThumbnailTemporaryFile tempFile = ThumbnailTemporaryFile::CreateTemporaryFile(GetTemporaryDirectory(), "image/jpeg");
|
||||
try
|
||||
{
|
||||
auto thumbnailPath = pipedal::GetAudioFileThumbnail(file, width, height, GetTemporaryDirectory());
|
||||
tempFile.Attach(thumbnailPath.Detach(), "image/jpeg");
|
||||
return tempFile;
|
||||
}
|
||||
catch (const std::exception &e)
|
||||
{
|
||||
// If we cannot get the thumbnail, return a default one.
|
||||
return DefaultThumbnailTemporaryFile();
|
||||
}
|
||||
}
|
||||
|
||||
static AudioFileInfoImpl instance;
|
||||
void AudioDirectoryInfoImpl::UpdateMetadata(DbFileInfo *dbFile)
|
||||
{
|
||||
fs::path file = this->path / dbFile->fileName();
|
||||
AudioFileMetadata metadata(file);
|
||||
dbFile->title(metadata.title());
|
||||
dbFile->track(metadata.track());
|
||||
dbFile->duration(metadata.duration());
|
||||
dbFile->album(metadata.album());
|
||||
dbFile->lastModified(GetLastWriteTime(file));
|
||||
dbFile->duration(metadata.duration());
|
||||
}
|
||||
|
||||
AudioFileInfo&AudioFileInfo::GetInstance()
|
||||
{
|
||||
return instance;
|
||||
}
|
||||
ThumbnailTemporaryFile::ThumbnailTemporaryFile(const std::filesystem::path &temporaryDirectory)
|
||||
: TemporaryFile(temporaryDirectory)
|
||||
{
|
||||
// Set a default MIME type for the thumbnail.
|
||||
mimeType = "image/jpeg"; // Default MIME type, can be set later.
|
||||
}
|
||||
|
||||
ThumbnailTemporaryFile ThumbnailTemporaryFile::CreateTemporaryFile(const std::filesystem::path &temporaryDirectory, const std::string &mimeType)
|
||||
{
|
||||
ThumbnailTemporaryFile result(temporaryDirectory);
|
||||
result.SetMimeType(mimeType);
|
||||
return result;
|
||||
}
|
||||
|
||||
ThumbnailTemporaryFile ThumbnailTemporaryFile::FromFile(const std::filesystem::path &filePath, const std::string &mimeType)
|
||||
{
|
||||
ThumbnailTemporaryFile result;
|
||||
result.Attach(filePath, mimeType);
|
||||
return result;
|
||||
}
|
||||
|
||||
void ThumbnailTemporaryFile::Attach(const std::filesystem::path &filePath, const std::string &mimeType)
|
||||
{
|
||||
super::Attach(filePath);
|
||||
SetMimeType(mimeType);
|
||||
}
|
||||
|
||||
size_t AudioDirectoryInfoImpl::TestGetNumberOfThumbnails()
|
||||
{
|
||||
if (!audioFilesDb)
|
||||
{
|
||||
throw std::logic_error("DB not open");
|
||||
}
|
||||
return this->audioFilesDb->GetNumberOfThumbnails();
|
||||
}
|
||||
|
||||
void AudioDirectoryInfoImpl::OpenAudioDb()
|
||||
{
|
||||
if (!this->audioFilesDb) {
|
||||
this->audioFilesDb = std::make_shared<AudioFilesDb>(this->path, indexPath);
|
||||
}
|
||||
}
|
||||
|
||||
ThumbnailTemporaryFile AudioDirectoryInfoImpl::DefaultThumbnailTemporaryFile()
|
||||
{
|
||||
ThumbnailTemporaryFile tempFile;
|
||||
fs::path defaultThumbnail = GetResourceDirectory() / "img/missing_thumbnail.jpg";
|
||||
tempFile.SetNonDeletedPath(defaultThumbnail, "image/jpeg");
|
||||
return tempFile;
|
||||
}
|
||||
|
||||
std::string AudioDirectoryInfoImpl::GetNextAudioFile(const std::string &fileNameOnly)
|
||||
{
|
||||
auto files = this->GetFiles();
|
||||
if (files.empty())
|
||||
{
|
||||
return "";
|
||||
}
|
||||
for (size_t i = 0; i < files.size(); ++i)
|
||||
{
|
||||
if (files[i].fileName() == fileNameOnly)
|
||||
{
|
||||
if (i + 1 < files.size())
|
||||
{
|
||||
return files[i + 1].fileName();
|
||||
}
|
||||
else
|
||||
{
|
||||
return files[0].fileName(); // wrap around to the first file.
|
||||
}
|
||||
}
|
||||
}
|
||||
return "";
|
||||
}
|
||||
std::string AudioDirectoryInfoImpl::GetPreviousAudioFile(const std::string &fileNameOnly)
|
||||
{
|
||||
auto files = this->GetFiles();
|
||||
if (files.empty())
|
||||
{
|
||||
return "";
|
||||
}
|
||||
for (size_t i = 0; i < files.size(); ++i)
|
||||
{
|
||||
if (files[i].fileName() == fileNameOnly)
|
||||
{
|
||||
if (i > 0)
|
||||
{
|
||||
return files[i - 1].fileName();
|
||||
}
|
||||
else
|
||||
{
|
||||
return files[files.size() - 1].fileName(); // wrap around to the last file.
|
||||
}
|
||||
}
|
||||
}
|
||||
return "";
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user