[FFmpeg-trac] #7243(ffmpeg:new): Supplying redudant arguments changes actual ouput response

[FFmpeg]

#7243: Supplying redudant arguments changes actual ouput response
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             Reporter:  joblow  |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  unspecified
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
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 By adding these command line values for reading a 16-bit 44100hz wav file
 causes the data to be subtle altered.

 -af atempo=44100 -ar 1

 It seems that the resampler is not perfectly accurate(could be edge noise)
 and it does not check to see if it doesn't even have to resample. Or it
 could be the rate.

 The code should not process the data for rate change if the rate is 1. If
 the sample rate is the same as the source it should not try to resample.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7243>
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