[FFmpeg-user] Tunning GOP Paramaters

mohamed hefny m.hefny at nilesat.com.eg
Fri Jan 18 19:17:07 CET 2013

 I want to transcode a video file (MPEG2 - PAL) to have the following GOP specifications:
 * M=3 , N=12
 * GOP Type: Close
And I tried these parameters: -flags +cgop -sc_threshold 1000000000  -g 12 -bf 3, which didn't work. 
So could anyone help me please to output files with above specs.
Thank you in advance.
Best regards,
  Mohamed Hefny
  DVB Engineer
  Egyptian Satellite Co

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