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From: Rob C. <ro...@so...> - 2003-03-30 10:32:11
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I know that Quicktime is, unlike .avi files, based upon an "atom"-structure. If I am correct this structure is also used for the MPEG4 file format. And thanks to the MPEG4IP project there's a lib available that has the function Mp4FileInfo which basically dumps all track information. I compiled this into a .dll which I can call from VB, works perfectly. Now I'd like to do the same thing for .Mov files but.. I can't find anything like a functionality like "MOVFileInfo" but it seems that I'll have to build such a function myself? ----- Original Message ----- From: "Nick Humfrey" <nj...@ec...> To: "Rob Coenen" <ro...@so...> Cc: <ope...@li...> Sent: Saturday, March 29, 2003 10:04 PM Subject: Re: [Openquicktime-users] .mov file info? > Sorry for the long time in replying - Have I replied already ? Don't > think I have - but thought I had... ! > > > Information about the QuickTime file format is here: > > http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf > > I don't think there is a really easy way of getting basic information > about a movie out - it isn't just sitting in the first few bytes of > the file - that is what OpenQuicktime is for ! > > > I know very little about VB - but do you think you could called > functions in OQT compiled as a DLL ? The OQT API is documented here: > http://www.openquicktime.org/docs/openquicktime/ > > > Cheers, > > nick. > > > > At 16:43 +0100 18/3/03, Rob Coenen wrote: > >Hi all, > > > >OpenQuicktime, I hop ethat this is the right list to get some help from, > >not 100% sure. > >I'm trying to find information about the .mov filestructure. I do want to > >write a little aplication in Visual Basic (oh my..) that reads the header of > >a .mov file, checks if it has a movie and audio track and returns some extra > >information like the length (in ms) of the movie, the framerate, the > >dimensions, the used codecs for video/audio, etc. > >Currently I already found something that does the sqame for .avi file > >(http://isengrim.rotegruetze.net/avi-info.php) > > > >I do need to use Windows, and my C++ skills are limited. So VB is my first > >choiche. > >Any help from you guys? Is there any simple documentation available about > >the header structure of the .mov format? (for the .avi fileformat I found > >this http://www.fastgraph.com/help/avi_header_format.html, please have a > >look) > > > >Any help is welcome, > > > >Rob > > > > > > > >------------------------------------------------------- > >This SF.net email is sponsored by: Does your code think in ink? > >You could win a Tablet PC. Get a free Tablet PC hat just for playing. > >What are you waiting for? > >http://ads.sourceforge.net/cgi-bin/redirect.pl?micr5043en > >_______________________________________________ > >Openquicktime-users mailing list > >Ope...@li... > >https://lists.sourceforge.net/lists/listinfo/openquicktime-users > > |