[FFmpeg-trac] #3444(ffmpeg:new): -r not setting frame rate. -vf fps=25 takes 10 times longer to created video.

[FFmpeg]

#3444: -r not setting frame rate. -vf fps=25 takes 10 times longer to created
video.
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             Reporter:  JoeJohnson    |                    Owner:
                 Type:  task          |                   Status:  new
             Priority:  important     |                Component:  ffmpeg
              Version:  unspecified   |               Resolution:
             Keywords:  high CPU, -r  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by cehoyos):

 Replying to [ticket:3444 JoeJohnson]:
 > Creates working video at over 10 times the CPU cost:
 > ffmpeg.exe -r 1 -i Untitled_%09d.png -vf fps=25 -c h264 h264.avi

 > ffmpeg.exe -r 1 -i Untitled_%09d.png -c h264 h264.avi

 Sorry if I misunderstand: Shouldn't the first command line take
 approximately 25 times as long as the second? Assuming you want to encode
 ten seconds, the first command line forces libx264 to encode 250 frames,
 the second one only 10, or do I miss something?

 Generally, please always provide your failing command line together with
 the complete uncut console ouptut for valid tickets on this bug tracker.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3444#comment:1>
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