Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.
video edition
-
@jmv38 I think what you probably are going to want is an AVVideoComposition, which lets you use standard or custom CIFilters to process a movie.
I am playing around with getting AVAssetReader workng, though I might not get a lot of time to work on this for a few weeks
-
Thanks for your answer @JonB
I had a look at apple's doc on videocomposition. It is way over my head, so I'll postpone this part of my project to an indefinite date. And for now I'll focus on the many other parts that still need to be written, and are more within my reach...
Thanks! -
btw, in the meantime, you should be able to access the imageview.image to get a ui.image, which you can the convert to jpg or png to write to a sequence of files, or PIL image for processing, etc.
-
Correct. This is what i really needed in the first place. The video writing capability is just the 'cherry on the cake'.
-
i found this link http://stackoverflow.com/questions/5640657/avfoundation-assetwriter-generate-movie-with-images-and-audio
The very first bloc of code in this topic is sufficient i think (i dont want to alter audio).
Is it possible to embed the whole code and pass it just the video and the image? Or do I have to call each line with objc utils? -
This post is deleted! -
@SandraGarrett more info on the
.in_dll()method here -
This post is deleted! -
This post is deleted! -
I'd like to be able to get a video from the photos module or a local .mov file and show a given frame in the console.
There seems to be 2 ways to do this but neither is working for me yet.
I tried running this:
https://github.com/jsbain/objc_hacks/blob/master/getframes.py
But the resulting view is just a transparent overlay.
It seems to me that this returns a 'NoneType' object.
cgimage_obj=generator.copyCGImageAtTime_actualTime_error_(t,byref(tactual),None,restype=c_void_p,argtypes=[CMTime,POINTER(CMTime),POINTER(c_void_p)])
type(cgimage_obj)
<class 'NoneType'>It also looks like the photos module has a .seek function I am unable to get that to show me anything other than frame 1 using get_image().
Are there any working examples of this?
Thanks so much for your help.
-
Did you try the modified version of the code posted by @jmv38 at the top of this thread?
The next thing to do would be to step through each line and see if you are getting objects back. For instance, is generator valid, etc. I'll have to check, but some of these methods may be depreciated now.
-
Hi. Thanks for the reply.
Yea I did. It has a similar result with a transparent view and not able to see any images. I’ve started going through your code line by line but I’ve only just starting to use objc_util and there are other things you are doing that are new to me.
My concern is that it isn’t possible anymore and I’m going down the wrong path.
-
@Pythonised In IOS 16/iPadOS 16, you will have Image at to replace deprecated copyCGImageAtTime_actualTime_error_
-
This post is deleted! -
This post is deleted! -
@cvp Thanks for the reply. I’m a bit out of my depth trying to solve this. I haven’t used ctypes before and can’t work out how to call the swift “image(at:)“ function as you’ve suggested.
-
@Pythonised image_at not shown in dir(generator), weird, can't help more, sorry
