Issue 15 in sinthgunt: Enhancement request: optional "post-processing" config window
sint...@googlecode.com
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 15 by s...@bigroom.org: Enhancement request:
optional "post-processing" config window
http://code.google.com/p/sinthgunt/issues/detail?id=15
I've gotten a few camcorder videos that are quite grainy, etc., and want to
denoise and adjust levels. I can use ffmpeg's postprocessor to do this,
but there's no option for this yet in sinthgunt, so I have to re-encode
once to get the postprocessing before I can load into sinthgunt to do the
conversions to the formats I want.
A "Postprocess?" checkbox and an window with some basic selectable
postprocessing options to concatenate at the end of the preset options
would be very handy.
sint...@googlecode.com
Labels: -Type-Defect Type-Enhancement
Comment #1 on issue 15 by tjansso...@gmail.com: Enhancement request:
optional "post-processing" config window
http://code.google.com/p/sinthgunt/issues/detail?id=15
Could you give an example of what ffmpeg commands you personally use
currently for post-processing? Then I could start out by implementing this
and add more when something new is found?
sint...@googlecode.com
Comment #2 on issue 15 by epica...@gmail.com: Enhancement request:
http://code.google.com/p/sinthgunt/issues/detail?id=15
Sorry about the delay, I just realized it's been a week and I have been
meaning to reply. (As I look at the ffmpeg man page, perhaps "filter" woudl
be a better term than "postprocessing" - I believe the optional "postproc"
option adds more filters but I'm having trouble finding documentation on
those at the moment...)
I think the "hqdn3d" filter will do most of the "denoising" that I am
looking for in this case. In some cases I might want to add the unsharp
filter to try to enhance text (I'm currently working with recordings of
people giving "powerpoint" presentations, made with a cheap digital video
camera, and sharpening the denoised image with "unsharp" helps make the
text on the slides more legible in the video).
The only catch with those is that both take a series of optional ranges to
define how agressively to apply the filters (and in the case of "unsharp",
whether is it "blurring" or "sharpening"). Eventually either manual entry
or a "slider" that lets one toggle between a few predefined levels would
probably be nice, but for now just a toggle that enables the default level
of hqdn3d filtering would be useful.
A toggle for the "yadif" filter to automatically deinterlace might also be
handy.