internal MetadataToIlstAtomAdapter([NotNull] AudioMetadata metadata, bool compressCoverArt)
{
if (!string.IsNullOrEmpty(metadata.Title))
{
_atoms.Add(new TextAtom("©nam", metadata.Title));
}
if (!string.IsNullOrEmpty(metadata.Artist))
{
_atoms.Add(new TextAtom("©ART", metadata.Artist));
}
if (!string.IsNullOrEmpty(metadata.Album))
{
_atoms.Add(new TextAtom("©alb", metadata.Album));
}
if (!string.IsNullOrEmpty(metadata.AlbumArtist))
{
_atoms.Add(new TextAtom("aART", metadata.AlbumArtist));
}
if (!string.IsNullOrEmpty(metadata.Composer))
{
_atoms.Add(new TextAtom("©wrt", metadata.Composer));
}
if (!string.IsNullOrEmpty(metadata.Genre))
{
_atoms.Add(new TextAtom("©gen", metadata.Genre));
}
if (!string.IsNullOrEmpty(metadata.Comment))
{
_atoms.Add(new TextAtom("©cmt", metadata.Comment));
}
if (!string.IsNullOrEmpty(metadata.Day) &&
!string.IsNullOrEmpty(metadata.Month) &&
!string.IsNullOrEmpty(metadata.Year))
{
_atoms.Add(new TextAtom("©day",
$"{metadata.Year}-{metadata.Month}-{metadata.Day}"));
}
else if (!string.IsNullOrEmpty(metadata.Year))
{
_atoms.Add(new TextAtom("©day", metadata.Year));
}
if (!string.IsNullOrEmpty(metadata.TrackNumber))
{
_atoms.Add(new TrackNumberAtom(metadata.TrackNumber, metadata.TrackCount));
}
if (metadata.CoverArt != null)
{
_atoms.Add(new CoverAtom(compressCoverArt
? CoverArtFactory.ConvertToLossy(metadata.CoverArt)
: metadata.CoverArt));
}
}
internal MetadataToTagModelAdapter([NotNull] AudioMetadata metadata, [NotNull] string encoding)
{
AddTextFrame("TIT2", metadata.Title, encoding);
AddTextFrame("TPE1", metadata.Artist, encoding);
AddTextFrame("TALB", metadata.Album, encoding);
AddTextFrame("TPE2", metadata.AlbumArtist, encoding);
AddTextFrame("TCOM", metadata.Composer, encoding);
AddTextFrame("TCON", metadata.Genre, encoding);
AddFullTextFrame("COMM", metadata.Comment, "eng", encoding);
AddTextFrame("TDAT", GetDateText(metadata), encoding);
AddTextFrame("TYER", metadata.Year, encoding);
AddTextFrame("TRCK", GetTrackText(metadata), encoding);
// ReplayGain fields are always in Latin-1, encoding as per specification
AddUserDefinedFrame("REPLAYGAIN_TRACK_PEAK", metadata.TrackPeak, "Latin1", true);
AddUserDefinedFrame("REPLAYGAIN_ALBUM_PEAK", metadata.AlbumPeak, "Latin1", true);
if (!string.IsNullOrEmpty(metadata.TrackGain))
{
AddUserDefinedFrame("REPLAYGAIN_TRACK_GAIN", $"{metadata.TrackGain} dB", "Latin1", true);
}
if (!string.IsNullOrEmpty(metadata.AlbumGain))
{
AddUserDefinedFrame("REPLAYGAIN_ALBUM_GAIN", $"{metadata.AlbumGain} dB", "Latin1", true);
}
if (metadata.CoverArt == null)
{
return;
}
// Always store images in JPEG format since MP3 is also lossy
var lossyCoverArt = CoverArtFactory.ConvertToLossy(metadata.CoverArt);
Add(new FramePicture("APIC")
{
PictureType = PictureTypeCode.CoverFront,
Mime = lossyCoverArt.MimeType,
PictureData = lossyCoverArt.Data.ToArray()
});
}
internal unsafe MetadataToOpusCommentAdapter([NotNull] AudioMetadata metadata)
{
Handle = SafeNativeMethods.OpusEncoderCommentsCreate();
if (!string.IsNullOrEmpty(metadata.Title))
{
AddTag("TITLE", metadata.Title);
}
if (!string.IsNullOrEmpty(metadata.Artist))
{
AddTag("ARTIST", metadata.Artist);
}
if (!string.IsNullOrEmpty(metadata.Album))
{
AddTag("ALBUM", metadata.Album);
}
if (!string.IsNullOrEmpty(metadata.AlbumArtist))
{
AddTag("ALBUMARTIST", metadata.AlbumArtist);
}
if (!string.IsNullOrEmpty(metadata.Composer))
{
AddTag("COMPOSER", metadata.Composer);
}
if (!string.IsNullOrEmpty(metadata.Genre))
{
AddTag("GENRE", metadata.Genre);
}
if (!string.IsNullOrEmpty(metadata.Comment))
{
AddTag("DESCRIPTION", metadata.Comment);
}
if (!string.IsNullOrEmpty(metadata.Day) &&
!string.IsNullOrEmpty(metadata.Month) &&
!string.IsNullOrEmpty(metadata.Year))
{
AddTag("DATE", $"{metadata.Year}-{metadata.Month}-{metadata.Day}");
}
else if (!string.IsNullOrEmpty(metadata.Year))
{
AddTag("YEAR", metadata.Year);
}
if (!string.IsNullOrEmpty(metadata.TrackNumber))
{
AddTag("TRACKNUMBER", !string.IsNullOrEmpty(metadata.TrackCount)
? $"{metadata.TrackNumber}/{metadata.TrackCount}"
: metadata.TrackNumber);
}
if (!string.IsNullOrEmpty(metadata.TrackGain))
{
AddTag("R128_TRACK_GAIN", ConvertGain(metadata.TrackGain));
}
if (!string.IsNullOrEmpty(metadata.AlbumGain))
{
AddTag("R128_ALBUM_GAIN", ConvertGain(metadata.AlbumGain));
}
if (metadata.CoverArt == null)
{
return;
}
// Always store images in JPEG format since Vorbis is also lossy
var coverArt = CoverArtFactory.ConvertToLossy(metadata.CoverArt);
fixed(byte *coverArtAddress = coverArt.Data)
{
var error = SafeNativeMethods.OpusEncoderCommentsAddPictureFromMemory(
Handle,
coverArtAddress,
new IntPtr(coverArt.Data.Length),
-1,
IntPtr.Zero);
if (error != 0)
{
throw new AudioEncodingException($"Opus encountered error {error} writing the cover art.");
}
}
}
internal MetadataToTagModelAdapter(AudioMetadata metadata, int version, string encoding)
{
Header.Version = (byte)version;
var textType = encoding switch
{
"UTF16" => TextType.Utf16,
"UTF8" => TextType.Utf8,
_ => TextType.Ascii
};
AddTextFrame("TIT2", metadata.Title, textType);
AddTextFrame("TPE1", metadata.Artist, textType);
AddTextFrame("TALB", metadata.Album, textType);
AddTextFrame("TPE2", metadata.AlbumArtist, textType);
AddTextFrame("TCOM", metadata.Composer, textType);
AddTextFrame("TCON", metadata.Genre, textType);
AddTextFrame("COMM", metadata.Comment, textType);
if (version == 3)
{
AddTextFrame("TDAT", GetDateText(metadata), textType);
AddTextFrame("TYER", metadata.Year, textType);
}
else
{
AddTextFrame("TDRC", GetTimeStamp(metadata), textType);
}
AddTextFrame("TRCK", GetTrackText(metadata), textType);
AddReplayGainFrame(metadata.TrackPeak, "REPLAYGAIN_TRACK_PEAK");
AddReplayGainFrame(metadata.AlbumPeak, "REPLAYGAIN_ALBUM_PEAK");
AddReplayGainFormattedFrame(metadata.TrackGain, "REPLAYGAIN_TRACK_GAIN");
AddReplayGainFormattedFrame(metadata.AlbumGain, "REPLAYGAIN_ALBUM_GAIN");
if (metadata.CoverArt == null)
{
return;
}
// Always store images in JPEG format, since MP3 is also lossy
var lossyCoverArt = CoverArtFactory.ConvertToLossy(metadata.CoverArt);
Frames.Add(new FramePicture
{
PictureType = PictureType.CoverFront,
Mime = lossyCoverArt.MimeType,
PictureData = lossyCoverArt.Data.ToArray()
});
}
void AddReplayGainFormattedFrame(string value, string description)
{
if (!string.IsNullOrEmpty(value))
{
AddReplayGainFrame($"{value} dB", description);
}
}
void AddReplayGainFrame(string value, string description) => AddTextFrame("TXXX", value, TextType.Ascii, description, true);
void AddTextFrame(string frameId, string value, TextType textType = TextType.Ascii, string?description = null, bool fileAlter = false)
{
if (string.IsNullOrEmpty(value))
{
return;
}
var frame = (FrameText)FrameFactory.Build(frameId);
frame.Text = value;
frame.TextType = textType;
frame.FileAlter = fileAlter;
if (description != null)
{
if (frame is IFrameDescription frameDescription)
{
frameDescription.Description = description;
}
}
Frames.Add(frame);
}
internal MetadataToVorbisCommentAdapter([NotNull] AudioMetadata metadata)
{
SafeNativeMethods.VorbisCommentInit(out _comment);
if (!string.IsNullOrEmpty(metadata.Title))
{
AddTag("TITLE", metadata.Title);
}
if (!string.IsNullOrEmpty(metadata.Artist))
{
AddTag("ARTIST", metadata.Artist);
}
if (!string.IsNullOrEmpty(metadata.Album))
{
AddTag("ALBUM", metadata.Album);
}
if (!string.IsNullOrEmpty(metadata.AlbumArtist))
{
AddTag("ALBUMARTIST", metadata.AlbumArtist);
}
if (!string.IsNullOrEmpty(metadata.Composer))
{
AddTag("COMPOSER", metadata.Composer);
}
if (!string.IsNullOrEmpty(metadata.Genre))
{
AddTag("GENRE", metadata.Genre);
}
if (!string.IsNullOrEmpty(metadata.Comment))
{
AddTag("DESCRIPTION", metadata.Comment);
}
if (!string.IsNullOrEmpty(metadata.Day) &&
!string.IsNullOrEmpty(metadata.Month) &&
!string.IsNullOrEmpty(metadata.Year))
{
AddTag("DATE", $"{metadata.Year}-{metadata.Month}-{metadata.Day}");
}
else if (!string.IsNullOrEmpty(metadata.Year))
{
AddTag("YEAR", metadata.Year);
}
if (!string.IsNullOrEmpty(metadata.TrackNumber))
{
AddTag("TRACKNUMBER", !string.IsNullOrEmpty(metadata.TrackCount)
? $"{metadata.TrackNumber}/{metadata.TrackCount}"
: metadata.TrackNumber);
}
if (!string.IsNullOrEmpty(metadata.TrackPeak))
{
AddTag("REPLAYGAIN_TRACK_PEAK", metadata.TrackPeak);
}
if (!string.IsNullOrEmpty(metadata.AlbumPeak))
{
AddTag("REPLAYGAIN_ALBUM_PEAK", metadata.AlbumPeak);
}
if (!string.IsNullOrEmpty(metadata.TrackGain))
{
AddTag("REPLAYGAIN_TRACK_GAIN", $"{metadata.TrackGain} dB");
}
if (!string.IsNullOrEmpty(metadata.AlbumGain))
{
AddTag("REPLAYGAIN_ALBUM_GAIN", $"{metadata.AlbumGain} dB");
}
// Always store images in JPEG format since Vorbis is also lossy
if (metadata.CoverArt != null)
{
AddTag("METADATA_BLOCK_PICTURE", CoverArtAdapter.ToBase64(
CoverArtFactory.ConvertToLossy(metadata.CoverArt)));
}
}