[FFmpeg-user] video to image sequence conversion problem

Roger Pack rogerdpack2 at gmail.com
Thu Jul 5 19:07:08 CEST 2012

On Mon, Jul 2, 2012 at 9:13 PM, BhelPuri <samosa_chaat at yahoo.com> wrote:

> I'm trying to convert a HD video (1920x1088 H264, 29.97fps) into an image
> sequence with downsampling (to 5 fps). I used the following:
> ffmpeg -i myMovie.mov -r 5 -f image2 foo-%05d.tif
> I later process the resulting tif image sequence to track an oscillatory
> motion. However I'm not sure if the downsampled image sequence is being
> done right as it seems to be progressively out of sync with the motion.
> I'm not sure how to interpret the output displayed in the format-
> frame=  xxx fps=yyy q=0.0 size= 0kB time=ttt bitrate= 0.0kbits/s
> where the number yyy varies throughout (0, 7.8 thru 14.0)
> Could someone explain why the frames are out of sync and how I should be
> correcting for that?

Full uncut console command line and output?

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