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[mpeg2] KFir MPEG2 editing
- To: mpeg2@linuxtv.org
- Subject: [mpeg2] KFir MPEG2 editing
- From: MAL <mal@komcept.com>
- Date: Wed, 06 Feb 2002 14:12:21 +0000
- Content-Transfer-Encoding: 7bit
- Content-Type: text/plain; charset=us-ascii; format=flowed
- Delivered-To: mhonarc@limes.convergence.de
- Organization: Komcept Solutions Ltd.
- Sender: mpeg2-bounce@linuxtv.org
- User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.7) Gecko/20011226
This is a last call for aid...
I am trying to cut sections from an MPEG2 generated by a KFir.
By my understanding, the KFir uses bi-directional frame coding (IBP), as
opposed to progressive frame coding, which makes cutting the files at
clean boundaries very hard.
I need to be able to cut a file into sections, (for burning to cd
progressively), and those sections need to be sequential without loss.
I have written a program to almost completely dissect an MPEG2,
(everything bar decoding the actual pictures), and output a section, but
regardless of whether I set the group of pictures' header's
'broken_link' flag, I still get corrupt starts to the beginning of my
sections. The closed_gop flag within the mpeg2 is set, meaning the fkir
doesn't encode cleanly cuttable group_of_pictures.
Does anyone know of a way I can "fix" the mpeg2 to have cleanly cuttable
boundaries, or will I need to re-encode the whole file?
_Any_ help on this subject would be great, I refuse to believe there is
no way to do it :)
Also, if anyone knows whether you can get the KFir to encode
differently, shout me pls.
All the best,
MAL
Komcept Solutions Ltd.
United Kingdom
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