Subject: Re: How to convert a JPEG image to an I-frame?
Date: Monday 12th November 2007 23:28:50 UTC (over 10 years ago)
Hi, Reinhard Nissl schrieb: >> Yes, they are smooth for a brief moment, and then get jagged. > > I recall this behavior when I had a FF card for testing. Maybe it's a > feature to stop flickering one pixel high horizontal lines in still > images by doubling one field of the frame. Maybe there exists a switch > to turn this feature off. To prove the above mentioned behavior, please try this synthetic file: http://home.vrweb.de/~rnissl/radio/field_test.mpg Actually, it should display like here: http://home.vrweb.de/~rnissl/radio/field_test.png But if the above is true, you'll get some heavy flicker on TV and then it will split the screen into a top and bottom half where one half will be white and the other one black. This will happen when the FF card decides to display just a single field of the frame. > You've tried to repeat an I frame forever. Try to remove the sequence > end code (00 00 01 B7) from the end of the file before mplexing and the > MPEG program end code (00 00 01 B9) from the file after mplexing. Maybe > remove everything up to the first video PES packet from the final file. Bye. -- Dipl.-Inform. (FH) Reinhard Nissl mailto:[email protected] _______________________________________________ vdr mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr