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Тэги у медиа-файлов Найти похожие ветки
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Silver__Dragon (2006-01-11 17:33) [0]Новый вопрос: А как у медиа-файлов читать id-тэги(жанр, артист, альбом и т.д.)?
Заранее спасибо.
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Reindeer Moss Eater © (2006-01-11 17:35) [1]Слева-направо, сверху-вниз
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Silver__Dragon (2006-01-11 17:50) [2]спасибо! а то я пытался справа-налево, из нижнего правого угла в правый верхний...чего, думаю, за абракадабра? может, с кодировкой не то?
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Silver__Dragon (2006-01-11 18:03) [3]а если серьезно?
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begin...end © (2006-01-11 18:07) [4]http://www.id3.org
http://www.wotsit.org
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Silver__Dragon (2006-01-11 18:19) [5]Спасибо!
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Хинт © (2006-01-11 18:58) [6]
{
Модуль для работы с MP3 Tag"ами ID3V1 (05.12.2003)
Автор: Hint
Новый тип: TMp3Tag
Новая константа: Genres (список жанров)
Функции:
Пример использования:
var
Mp3Tag:TMp3Tag;
Mp3File:string;
begin
Mp3File:="C:\Music\song.mp3";
if TagExists(Mp3File) then
begin
Mp3Tag:=GetMp3Tag(Mp3File);
ShowMessage("Название: "+Mp3Tag.Title+#13+#10+"Жанр: "+IndexToGenre(Mp3Tag.Genre));
end
else ShowMessage("TAG не найден");
end;
}
unit UMP3Tags;
interface
Uses SysUtils, Classes;
type
TMP3Tag = record
FileName:string;
Title,Artist,Album:string[30];
Year:string[4];
Comment:string[29];
Track,Genre:byte;
end;
function IndexToGenre(Index:byte):string;
function GenreToIndex(Genre:string):byte;
function GetMP3Tag(var Mp3Tag:TMP3Tag;FileName:string):boolean;
function SetMp3Tag(Mp3Tag:TMP3Tag;FileName:string):boolean;
function DeleteMp3Tag(FileName:string):boolean;
function TagExists(FileName:string):boolean;
const
Genres: array [0..125] of String=
("Blues","Classic Rock","Country","Dance","Disco",
"Funk","Grunge","Hip-Hop","Jazz","Metal",
"New Age","Oldies","Other","Pop","R&B",
"Rap","Reggae","Rock","Techno","Industrial",
"Alternative","Ska","Death Metal","Pranks","Soundtrack",
"Euro-Techno","Ambient","Trip-Hop","Vocal","Jazz+Funk",
"Fusion","Trance","Classical","Instrumental","Acid",
"House","Game","Sound Clip","Gospel","Noise",
"AlternRock","Bass","Soul","Punk","Space",
"Meditative","Instrumental Pop","Instrumental Rock","Ethnic","Gothic",
"Darkwave","Techno-Industrial","Electronic","Pop-Folk","Eurodance",
"Dream","Southern Rock","Comedy","Cult","Gangsta",
"Top 40","Christian Rap","Pop/Funk","Jungle","Native American",
"Cabaret","New Wave","Psychadelic","Rave","Showtunes",
"Trailer","Lo-Fi","Tribal","Acid Punk","Acid Jazz",
"Polka","Retro","Musical","Rock & Roll","Hard Rock",
"Folk","Folk-Rock","National Folk","Swing","Fast Fusion",
"Bebob","Latin","Revival","Celtic","Bluegrass",
"Avantgarde","Gothic Rock","Progressive Rock","Psychedelic Rock","Symphonic Rock",
"Slow Rock","Big Band","Chorus","Easy Listening","Acoustic",
"Humour","Speech","Chanson","Opera","Chamber Music",
"Sonata","Symphony","Booty Brass","Primus","Porn Groove",
"Satire","Slow Jam","Club","Tango","Samba",
"Folklore","Ballad","Poweer Ballad","Rhytmic Soul","Freestyle",
"Duet","Punk Rock","Drum Solo","A Capela","Euro-House","Dance Hall");
implementation
function GetMP3Tag(var Mp3Tag:TMP3Tag;FileName:string):boolean;
var
tag:array[0..127] of char;
F:file;
I:byte;
S:string;
function DelSpace(s:string):string;
begin
Result:=s;
if length(Result)=0 then exit;
while s[length(Result)] in [" ", #0] do
begin
delete(Result,length(Result),1);
if Result = "" then break;
end;
end;
begin
Result:=false;
if not FileExists(FileName) then exit;
mp3tag.FileName:=FileName;
mp3tag.Title:=ExtractFileName(ChangeFileExt(FileName,""));
mp3tag.Artist:="Unknown";
mp3tag.Album:="Unknown";
mp3tag.Year:="";
mp3tag.Comment:="";
mp3tag.Genre:=255;
mp3tag.Track:=0;
try
AssignFile(F,FileName);
{$I-}
Reset(F,1);
Seek(F,FileSize(F)-128);
BlockRead(f,tag,128);
CloseFile(F);
{$I+}
if IOResult=0 then
begin
s := "";
for i := 0 to 127 do s := s + tag[i];
if copy(s,1,3)="TAG" then
begin
mp3tag.Title:=DelSpace(copy(S,4,30));
mp3tag.Artist:=DelSpace(copy(S,34,30));
mp3tag.Album:=DelSpace(copy(S,64,30));
mp3tag.Year:=DelSpace(copy(S,94,4));
mp3tag.Comment:=DelSpace(copy(S,98,29));
mp3tag.Track:=Ord(S[127]);
mp3tag.Genre:=Ord(S[128]);
Result:=true;
end;
end;
except
Result:=false;
end;
end;
function SetMp3Tag(MP3Tag:TMP3Tag; FileName:string):boolean;
var
mp3Str:TFileStream;
TExists:boolean;
procedure WriteString(Str:string;Count:byte);
var
i:integer;
CH:char;
begin
CH:=#0;
for i:=1 to Count do
begin
if I<=Length(Str) then Mp3Str.Write(Str[i],1) else Mp3Str.Write(CH,1);
end;
end;
begin
Result:=false;
if not FileExists(FileName) then exit;
try
FileSetAttr(filename,0);
TExists:=TagExists(filename);
Mp3Str:=TFileStream.create(FileName,fmOpenWrite);
if not TExists then Mp3Str.Seek(Mp3Str.Size,0) else Mp3Str.Seek(Mp3Str.Size-128,0);
WriteString("TAG",3);
WriteString(MP3Tag.Title,30);
WriteString(MP3Tag.Artist,30);
WriteString(MP3Tag.Album,30);
WriteString(MP3Tag.Year,4);
WriteString(MP3Tag.Comment,29);
Mp3Str.Write(MP3Tag.Track,1);
Mp3Str.Write(MP3Tag.Genre,1);
Mp3Str.Free;
Result:=true;
except
Result:=false;
end;
end;
function DeleteMp3Tag(FileName:string):boolean;
var
F:file;
begin
Result:=false;
if not TagExists(FileName) then exit;
try
FileSetAttr(filename,0);
AssignFile(F,filename);
Reset(F,1);
Seek(F,FileSize(F)-128);
Truncate(F);
CloseFile(F);
Result:=true;
except
Result:=false;
end;
end;
function TagExists(FileName:string):boolean;
var
Tag:array[0..2] of char;
F:File;
begin
Result:=false;
try
FileSetAttr(filename,0);
if FileExists(FileName) then
begin
AssignFile(F,FileName);
{$I-}
Reset(F,1);
Seek(F,FileSize(F)-128);
BlockRead(f,tag,3);
CloseFile(F);
{$I+}
if IOResult=0 then if Tag="TAG" then Result:=true;
end;
except
Result:=false;
end;
end;
function IndexToGenre(Index:byte):string;
begin
if Index<=125 then Result:=Genres[Index] else Result:="";
end;
function GenreToIndex(Genre:string):byte;
var
i:byte;
begin
if Genre<>"" then
begin
for i:=0 to 125 do if UpperCase(Genres[i])=UpperCase(Genre) then
begin
Result:=i;
exit;
end;
end
else Result:=255;
end;
end.
Еще есть для ID3v2. Надо?
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Текущий архив: 2006.01.29;
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