Movie header is misplaced
From Wikanual
Contents |
Quicktime support
Quicktime files are the most common form of clips in INTERDUBS. Where possible the system tries to support the user and assist with common pitfalls for this file format.
header misplaced
When INTERDUBS detects that the movie header is actually in the end of the file then it warns the admin user about this.
impact
When the header is in the end of the file it might be that it can be only played after it has been downloaded entirely. This negates the 'progressive download feature' and should be avoided.
remedy
Since the Quicktime application itself puts the header in the right spot in the file the fix to this issue is straight forward:
1. Open the file with Quicktime 2. Save it again 3. Upload the new file into INTERDUBS
Quicktime Atoms
Quicktimes are made out of different parts, so called atoms. An atom with the name 'moov' does contain all valid information about the movie file. Some applications store this in the end of the file. While quicktime has no problem with this, it does mean that the entire quicktime has to be downloaded before it can play in the browser. This behaviour is not ideal.
Interdubs will look after the upload of a quicktime file where the movie header is located in the file. If it should be towards the end, then it will issue a warning. The fix is to open the movie in quicktime, save it again and upload the new file.
