October 2007 - Pro-apps-dev

Re: Fields vs. frames, and parameter saving
by Hugh Denman 14 Oct '07

14 Oct '07

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Point parameters in FCP
by Hugh Denman 14 Oct '07

14 Oct '07

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Re: retiming in fxplug on fcp
by Paul Schneider 09 Oct '07

09 Oct '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi, Ben, - Paul On Oct 9, 2007, at 11:31 AM, Benjamin Kent wrote: Hi, Thanks _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… yes. In FCP, the FxTemporalImageAPI gives you access to the full clip, beyond the in and out points. I'm writing a node to retime footage, so I really need to be able to get frames from the full clip, rather than just the cut section - for example if someone has a clip in their timeline they want to be 20 frames long, but they want this to be twice as slow as the original footage, I need to access the source clip at frame 40 when producing the output at frame 20. Is this possible? Ben _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/pschneider% 40apple.com This email sent to pschneider(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: Fields vs. frames, and parameter saving
by Paul Schneider 09 Oct '07

09 Oct '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi, Hugh, We will always send you fields. I don't see anything obviously wrong with your code. - Paul _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… I'm still getting passed half-height fields, however. Is there anything I can do about it? If I just process even-numbered fields, and divide rowbytes by 2, am I effectively processing frames then? It's true that in Final Cut, the bitmap for the first field and the bitmap for the second field point to the same interlaced frame, with the base address and rowbytes adjusted. So you could modify what we pass you to get the original interlaced frame. This is an implementation detail of Final Cut, and is not guaranteed by the FxPlug API. Not all hosts are guaranteed to work this way. Final Cut isn't guaranteed to keep working this way. We would probably try to give you plenty of advanced warning if we decided to change it, though, since I believe a few developers depend on this right now. As Micah said, you can get both fields using the FxTemporalAPI and assemble an interlaced frame yourself. This may be a bit more work, but it's guaranteed to continue to work in all situations. Be aware that the fields occur at different points in time, and keyframed parameters may have different values at field1 than field2. And you generally want to be careful that pixels from one field don't bleed into the other, if you are doing a convolution or something similar. Working on full interlaced frames only makes sense in a few situations (like if you are writing a de-interlacer). 2) I can't get parameter persistence to work for me, using a custom parameter defined as below [at the end of the message]. When I quit FCP after saving my project, I can see that the NSCoding interfaces are called: One thing that surprises a lot of people is that we will call you to encode and decode your values multiple times during normal operation. We make copies of your parameter values for undo purposes, etc. So it can be difficult to track down which object is actually being serialized to disk. The SimpleMatte example included with the SDK demonstrates some working code for serializing and deserializing custom parameter data. I think your best bet is to compare your code to that plugin and look for differences. Don't confuse SimpleMatte with SimplePaint! That's an easy mistake to make. This email sent to site_archiver(a)lists.apple.com

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retiming in fxplug on fcp
by Benjamin Kent 09 Oct '07

09 Oct '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.0 (Macintosh/20070326) Hi, Thanks Ben _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… I'm writing a node to retime footage, so I really need to be able to get frames from the full clip, rather than just the cut section - for example if someone has a clip in their timeline they want to be 20 frames long, but they want this to be twice as slow as the original footage, I need to access the source clip at frame 40 when producing the output at frame 20. Is this possible? This email sent to site_archiver(a)lists.apple.com

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Re: Forcing a render in response to custom parameter push
by Paul Schneider 09 Oct '07

09 Oct '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… This email sent to site_archiver(a)lists.apple.com KickRender.zip

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Re: Custom param text box in fcp
by Paul Schneider 09 Oct '07

09 Oct '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Hi, Ben, - Paul On Oct 5, 2007, at 11:37 AM, Benjamin Kent wrote: Hi, Cheers _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… FCP doesn't let you programmatically resize your custom view once it's been created. We will use the initial height you specify when you create the view; however, we will resize the width of your view to fit the "Parameters" column in the parameter list. The user can resize this column by dragging the column header, but there isn't a way for a plugin to programmatically resize it. There's a more severe limitation in FCP, which you are probably hitting with your text view. FxPlug custom UI can't gain focus in Final Cut. This means that you won't be able to receive keyboard or scroll wheel events. This is a side effect of the way we host Cocoa UI in our Carbon application. For now, the best workaround is to provide a "settings..." button in your custom UI that runs your own modal dialog. We're looking into ways of improving the situation in the future. I'm trying to make a custom parameter text box using fxplug on fcp. The strings I'll need to put in may vary in length quite considerably. Using NSTextView at the moment, the result seems a little flaky - as you click around it, the displayed text occasionally seems to rearrange itself. Also, I can't figure out how to make it resize automatically to the length of the string. Is there a more sensible way to do this? Ben _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/pschneider% 40apple.com This email sent to pschneider(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: Fields vs. frames, and parameter saving
by Micah Sharp 08 Oct '07

08 Oct '07

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Re: Fields vs. frames, and parameter saving
by Dave Howell 08 Oct '07

08 Oct '07

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Fields vs. frames, and parameter saving
by Hugh Denman 08 Oct '07

08 Oct '07

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