Mobile/PDA About Us Advertise here
User User name Password  
  Not registered yet? Register here.
Lost your password? Click here. 		 
  Home   News   Guides   Downloads   Glossary   Hardware   Profiles   Forums   v4  
 Advertise at AfterDawn.com     Link to us!     Private messages     Compose a private message     List of all updated threads     Threads without replies     Search messages
Wednesday 27.8.2025 / 13:41
Search AfterDawn Forums:        In English   Suomeksi   På svenska
afterdawn.com > forums > digital video > video - everything else > mpeg-2 invalid header problem...help needed
Show topics
 
Forums
Forums
MPEG-2 invalid header problem...help needed
  Jump to:
 
Posted Message
bias
Newbie
_ 		15. June 2003 @ 00:33 _ Link to this message    Send private message to this user   
hi there everyone,

i have a recording on my hard drive captured from astra 1c satellite feed, and unfortunately the mpeg2 files have invalid header stating that it is NTSC coded 29.970 fps movie, although the real fps is 25 in PAL format.

i'd need to hack the header and change the appropriate data at the appropriate offset to be able to work the files up with some trimmer program.

can anyone of you have information about at what offset i can find the data code for NTSC format (2) to be changed to PAL (1) and the data code for 29.970 fps (4) to be changed to 25 fps (3) ?

cheers,

bias.

[ + quote]
mB.
Oriphus
AfterDawn Addict
_ 		15. June 2003 @ 18:09 _ Link to this message    Send private message to this user   
You do not that will screw up the sound and you'll have to fix that too?
[ + quote]
For your DVD needs http://www.dvd-and-media.com
http://www.dvd-backup.tk
For User Guides/Downloads: http://www.chrismccann.co.uk/user_guides.htm

bias
Newbie
_ 		15. June 2003 @ 20:33 _ Link to this message    Send private message to this user   
i don't think so. i tell you why. the recording is PAL coded with PAL sound. the problem was that the algorythm was set to NTSC, so the header is different from what the movie itself is. if i use any mpeg-2 utilities, the sound is okay (anyway it is only a low-bitrate reference for later sound-editing, i have recorded the sound parallelly in a wav file in another hard drive to avoid clicks and bandwidth problems), but the picture is always 1/4 faster. that's because of this problem, the utilities think it is 29.970 fps, although it is 25 fps only.

any other thoughts/help?

bias.

[ + quote]
mB.
afterdawn.com > forums > digital video > video - everything else > mpeg-2 invalid header problem...help needed
 

Digital video: AfterDawn.com | AfterDawn Forums
Music: MP3Lizard.com
Gaming: Blasteroids.com | Blasteroids Forums | Compare game prices
Software: Software downloads
Blogs: User profile pages
RSS feeds: AfterDawn.com News | Software updates | AfterDawn Forums
International: AfterDawn in Finnish | AfterDawn in Swedish | AfterDawn in Norwegian | download.fi
Navigate: Search | Site map
About us: About AfterDawn Ltd | Advertise on our sites | Rules, Restrictions, Legal disclaimer & Privacy policy
Contact us: Send feedback | Contact our media sales team
 
  © 1999-2025 by AfterDawn Ltd.

  IDG TechNetwork