• Compression Techniques

  ffmpeg, create MPEG2 from series of GIFs

  Posted by Mark Aren on October 23, 2011 at 5:47 am

  Hi All,

  I have a series of 60 individual, static GIF images, each 720×576 pixels (actually moving hands on a small clock). I wish to encode this to MPEG2 video at 2920kb/s with a duration of 60 seconds (1 sec per GIF frame).

  Current command line is

  ffmpeg -i tc_%02d.gif -r 1 -y -an -vcodec mpeg2video -b 2920kb -r 25 -s 720×576 TC_ZL3JVX.mpg

  where the 60 GIF files are named tc_00.gif to tc_59.gif

  Error message is unable to find a suitable output format for TC_ZL3JVX.mpg

  The resulting MPG will eventually be muxed into a transport stream for transmission using Digital Amateur TV, but that is a few steps away.

  Any help or pointers appreciated.

  Thanks,

  Mark

  Daniel Paluska replied 14 years, 8 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Daniel Paluska

  November 23, 2011 at 8:18 pm

  have you tried stripping away portions of the command?
  starting here:
  ffmpeg -i tc_%02d.gif test.mpg

  and slowly adding terms until you get to here:
  ffmpeg -i tc_%02d.gif -r 1 -y -an -vcodec mpeg2video -b 2920kb -r 25 -s 720×576 TC_ZL3JVX.mpg

  maybe it’s a 2 step process.
  you could use imagemagick to convert the individual frames to jpgs? maybe it would be happier with that?
  or first make a movie without specifying the codec and then transcoding that movie to the final desired state?

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