What video codecs are supported?

[dejawooh]

Firstly, this is an awesome community. Thanks for building it. I am trying to use Nuke for videos in my iOS project.
I looked at the Nuke Demo project and the video in that project plays just fine. But when I use a different video it fails with error "Failed to create an image from the image data" in TaskFetchDecodedImage class. On further debugging I narrowed down to the video codec being different between the videos used in Nuke Demo (H.264) Vs the video (H.264, AAC) I use. When checking the AVFileType.mp4.rawvalue for Nuke Demo video it shows as public.mpeg-4 while the one I use is "video/mp4". I have several videos in my project with this codec and content-type.

I am using LazyImage to display video in a View.

Is there a way to extend support to various content type and video codecs?

[kean]

Hey, @dejawooh! The video support is still in a somewhat experimental state – which we should probably document somewhere. I'm not a video expert, and the demand is largely coming from the community. I know the set of currently supported formats is limited and I would appreciate contributions.

AssertType determines what formats are recognized by Nuke. It uses magic numbers, and I would've loved to replace it with something native, but I don't think there is anything available right now, especially not with the support for the older OS versions. The playback is done using AVKit, so whatever it supports should also be supported. It looks like it's just a matter of adding support for more formats.

[dejawooh]

Hi Kean, Thanks for incredibly fast response. Let me see if I can find a way to extend the video codec/format support without messing the existing code. I will share my solution here if I am able to solve.

Thanks and much appreciated.