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holden crawford
Mpeg2 problem overseas
on Mar 8, 2011 at 1:16:21 pm

I have a problem with sending mpeg2 to a tv station in india. i am capturing on a mac doing a hardware conversion in pal. then i encode using compressor, to a program stream. so when the material reaches them by ftp, they get some problems playing back the file. some problems include video jerkiness. i check the file on my end by encoded back for viewing purpose, and it looks fine. could it be that they are using a pc based system, and mine is mac?


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Jeff Greenberg
Re: Mpeg2 problem overseas
on Mar 8, 2011 at 6:23:57 pm

Shouldn't be an issue. What are the exact specs they gave you?

Best,

Jeff G

Apple Master Trainer | Avid Cert. Instructor DS/MC
Come See me speak at NAB!
Compressor Essentials from Lynda.com
(older but still good) Marquee, Media Composer (3.5) and Basic/Advanced Color DVDs (1.0) from Vasst.com
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holden crawford
Re: Mpeg2 problem overseas
on Mar 8, 2011 at 6:28:18 pm

thanks for the reply here are the specs


Video Format:- MPEG-2 [ 4:2:0 ], Interlaced scan
Pixels:- 720x576
Frame Rate:- 25fps
Video Standard:- PAL, 8bits
Aspect Ratio:- 4:3
Bit Rate:- 12Mbps, Long GOP
Bit Rate Mode:- Constant Bit Rate

Audio:- MPEG - Layer 2, 48KHz, 192Kbps


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Jeff Greenberg
Re: Mpeg2 problem overseas
on Mar 8, 2011 at 6:44:40 pm

No, all of that is pretty standard. I've used MPEG files out of compressor on PC DVD authoring. Hmm. They should specify the actual GOP length...but that's about all that's worth mentioning (and with CBR, it shouldn't really matter much about the GOP.)

Best,

Jeff G

Apple Master Trainer | Avid Cert. Instructor DS/MC
Come See me speak at NAB!
Compressor Essentials from Lynda.com
(older but still good) Marquee, Media Composer (3.5) and Basic/Advanced Color DVDs (1.0) from Vasst.com
Contact me through my Website


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Andrew Rendell
Re: Mpeg2 problem overseas
on Mar 11, 2011 at 10:50:11 am

I had a similar problem last year and it turned out to be an issue with making the Mpegs in Compressor - I had left the Frame Control setting in Auto, which AFAIK should have been ok, but there was an issue with flickering. I redid the conversion with everything else exactly the same but I set the field order manually and hey presto everything worked perfectly.


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