[Mp4-tech] Question about the play of imcomplete mp4 files

[Dave Singer]

At 10:49  +0800 15/02/06, fengwenjie wrote:
>Hello all,
>
>I wonder whether the incomplete mp4 files can be played?

sometimes.
>
>Actually, i was considering the following case: in the process 
>of downloading the mp4 files, can I play it meanwhile? Be attention, 
>here, I use the "download" mode to get the file, Not "stream". If 
>yes, could anyone show me a player that can realize this function?

QuickTime does this with mov files (and maybe MP4, I haven't checked 
recently).  The files need to be authored for progressive display:
moov box at the front
media data interleaved in time order
3GPP has a profile specifying this.
-- 
David Singer
Apple Computer/QuickTime