private unsafe void Encode()
{
if (this.changed)
{
this.data = new tagID3v1_1();
fixed(tagID3v1_1 *pTag = &this.data)
{
pTag->pstrId[0] = 0x54;
pTag->pstrId[1] = 0x41;
pTag->pstrId[2] = 0x47;
fixed(char *pwstr = this.song)
this.enc.GetBytes(pwstr, this.song.Length, pTag->pstrSong, tagID3v1_1.SONG_SIZE);
fixed(char *pwstr = this.artist)
this.enc.GetBytes(pwstr, this.artist.Length, pTag->pstrArtist, tagID3v1_1.ARTIST_SIZE);
fixed(char *pwstr = this.album)
this.enc.GetBytes(pwstr, this.album.Length, pTag->pstrAlbum, tagID3v1_1.ALBUM_SIZE);
fixed(char *pwstr = this.year)
this.enc.GetBytes(pwstr, this.year.Length, pTag->pstrYear, tagID3v1_1.YEAR_SIZE);
fixed(char *pwstr = this.comment)
this.enc.GetBytes(pwstr, this.comment.Length, pTag->pstrComment, tagID3v1_1.COMMENT_SIZE);
}
this.data.nSongNumber = this.songNum;
this.data.nGenre = this.genre;
}
}
public Tag(System.Text.Encoding enc)
{
this.changed = false;
this.changed = true;
this.data = new tagID3v1_1();
this.enc = enc;
this.song = "<無題>";
this.artist = "";
this.album = "";
this.year = "2000";
this.comment = "";
this.songNum = 0;
this.genre = 0xff;
}
internal unsafe Tag(StreamAccessor accessor, System.Text.Encoding enc)
{
this.changed = false;
byte[] buffer = new byte[tagID3v1_1.SIZE];
if (tagID3v1_1.SIZE != accessor.Stream.Read(buffer, 0, tagID3v1_1.SIZE))
{
throw new FileFormatException("Stream の長さが ID3v1 のタグを格納できる大きさになっていません。");
}
fixed(byte *pData = buffer)
{
this.data = *(tagID3v1_1 *)pData;
}
this.Decode(enc);
}
