On vendredi 20 juin 2008, Patrik Karlsson wrote: > 2008/6/20 Benoit Minisini <[EMAIL PROTECTED]>: > > I don't know why apparently the length of the audio is not encoded in the > > file header... > > Ok, I see, at http://www.mp3-tech.org/programmer/frame_header.html I found > > "There is no main file header in an MPEG audio file. An MPEG audio > file is built up from a succession of smaller parts called frames. A > frame is a datablock with its own header and audio information. > In the case of Layer I or Layer II, frames are some totally > independent items, so you can cut any part of MPEG file and play it > correctly. The player will then play the music starting to the first > plain valid frame founded. However, in the case of Layer III, frames > are not always independant. Due to the possible use of the "byte > reservoir", wich is a kind of buffer, frames are often dependent of > each other. In the worst case, 9 frames may be needed before beeing > able to decode one frame."
Hopefully, there is http://developer.kde.org/~wheeler/taglib.html Maybe a component could be made from this library to get meta information about audio files. -- Benoit Minisini ------------------------------------------------------------------------- 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
