[M4IF Technotes] Regarding MPEG4 video in 3GPP file format

[Mody, Mihir]

Hi,
I created 3GPP movie file using Apple's Quicktime 6.3 Pro. In
'DecodeSpecificInfo'  for MPEG4 video,  for 'profile_and_level_indication'
field it writes reserve word (0x08).  Ideally this field should 
be 0x01 indicating simple profile and level 1 for MPEG4 video. The file does
not contain IODs.  How does decoder can find profile and level information
in this case? Can it always assume
simple profile L1 stream?
PS:  Also in case of Quicktime 6.0 Pro, it was writing 0xfe(reserve word) as
'profile_and_level_indication'  in MP4 files.
Regards,
Mihir Mody
Imaging and Audio Group,
Texas Instruments Inc.
Bangalore -India  
Email: mihir   ti.com
Phone: +91-80-5099307
-------------- next part --------------
An HTML attachment was scrubbed...
URL: /pipermail/mp4-tech/attachments/20030606/299920aa/attachment.html