Hi Tim,
I see you got an answer, and I trust it will work well for you. I'm just
adding an alternate way to generate key frame images.
One app I support uses a commandline app (ffmpeg) to create movie
thumbnails. It works great in my situation - it produces the desired
outcome a good bit faster than the player approach. That can become
important when you have potentially dozens of movie files from which to
you need to extract thumbnails as fast as possible.
The handler looks something like this (I excluded the part where I use
another commandline app, mediainfo, to verify that the new JPG file is
readable):
private function _ffmpegThumbPath pMovieFilePath
# Create a temp file containing a full-size JPEG image of a movie's
key frame.
-- ffmpeg path
put myFullPathToFFMPEG() into tFFMPEGPath
-- temp image filepath
put tempName() & ".jpg" into tTempImagePath
-- create temp thumb image file (same rect as movie)
put ( q(tFFMPEGPath) && "-i" && q(pMovieFilePath) && "-ss 1
-vframes 1 -f mjpeg" && q(tTempImagePath) ) into tCommand
put shell(tCommand) into tOutput
return tTempImagePath -- the full path of the new JPG file
end _ffmpegThumbPath
function q pString -- thanks to Ken Ray for this
return quote & pString & quote
end q
HTH -
Phil Davis
On 5/28/16 5:46 AM, Tim Selander wrote:
Hi,
Once upon a time I am almost positive that I could grab a screenshot
of the current video frame in a player, and paste it into a scrolling
field.
But I've forgotten how, and no scouring of the dictionary or google
help. Can anyone tell me how it's done?
many thanks.
Tim Selander
Tokyo, Japan
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Phil Davis
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