[FFmpeg-trac] #3238(undetermined:new): QScale does not work with libx264
FFmpeg
trac at avcodec.org
Fri Mar 21 19:41:00 CET 2014
#3238: QScale does not work with libx264
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Reporter: ramitbhalla | Owner:
Type: enhancement | Status: new
Priority: wish | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Changes (by llogan):
* priority: normal => wish
* version: unspecified => git-master
* type: defect => enhancement
Comment:
That will increase confusion:
* `-qscale` traditionally means constant quantizer, but 99% of users
should not be using `-qp`.
* Users have always been told to ignore `-qscale` with libx264:
> <Dark_Shikari> don't use qscale with libx264, ever
* Many users will assume the linear "mpeg" quant scale of 1-31 since
`-qscale` is most often associated with this type of encoder.
* I believe user intent is being preserved with the current behavior. What
is the actual user intent? Most users want `-crf` even if they do not
actually know what they want. Adding an alias that means something else in
other encoders is confusing.
I think the info message is the best option and will not change current
behavior which I think is a very important consideration.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3238#comment:6>
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