Il sabato 21 giugno 2008 01:24:51 Lee McPherson ha scritto: > I've been working on this for mp3 files. It is really easy to just use > an external app to get the length of normal bitrate mp3 files as Stefano > suggested. For variable bitrate mp3s, it's a little harder.
Just to say that mp3info, available here http://ibiblio.org/mp3info/ can even manage VBR mp3 files. Also, we could use sox: sox file.mp3 -e stat but it is much slower than mp3info. Ciao a tutti, Stefano > There are > visual basic scripts on the web that can do this... I have them > somewhere in my files. If I can find them, I'll share them. > > However, it's not perfect. From what I remember, it goes through each > frame of the mp3 and calculates an average length for each frame, to > give you an approximate time length for the whole mp3. So seeking in > that track will not work correctly, but it doesn't work perfectly in any > player as far as I know. I never finished coding this into my own app > though (which plays mp3 files from MySQL somewhat like Amarok does, but > using VLC player). > > -Lee > > Benoit Minisini wrote: > > On vendredi 20 juin 2008, Benoit Minisini wrote: > >> On vendredi 20 juin 2008, Patrik Karlsson wrote: > >>> Hello, I'm about to port an old Delphiapp to a nicer environment and > >>> I'm looking at Gambas to do the work, Gambas is realy nice! > >>> > >>> One function I used in Delphi was to get the length of the sound > >>> played in TMediaPlayer, since I would like things done after 80%, > >>> 90%... > >>> Music.Pos tells me where I am, but I can not found a function that > >>> tells me how far I have to go. > >>> > >>> Is there a solution to this? > >> > >> Alas, if I remember correctly, the SDL library has no method to know the > >> length of the music! I don't know if it has changed recently, I will > >> check... > > > > Apparently, SDL cannot extract the audio length from some formats, like > > MP3 with a variable bitrate stream. > > > > I don't know why apparently the length of the audio is not encoded in the > > file header... > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Gambas-user mailing list > Gambas-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gambas-user ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user