site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=filmstro-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=pRgAYjwD7FUNIo3KkDP/n0O/eMN0Q0JYBYwbb6+c7EQ=; b=KCsPEI5tqo/4qBO0xDe2Wj7DUipaOKVfrmvtt1MnMdUQ6i6K3dvTBBs4QFyFG5SG54 RWfX6Mtqj0Lat9HU7/uqlomZ86ev+3IMpTmbMT8oCjj0+nMqbD9SG6NlHbb3l/ZODSXm 1YmFE74TKF63YaE1m44Rc+c/DlsuKA8Z4yKz9xpV7FSVgz5Yc6J5rmJC757RmOI0D4Je t592QLOm5QYckzXQRWTTYX18pdckjeIxV2Vdisg0LSpG2fPnr3nsj0PbwEGwAiHhqXV5 g7rLGifV9fT4ueceLNXw1TAnzrovOu6eT8FVTov0cjt/gIswvegUBTBSD+FNrdO7414h rsNQ== Hi Darrin,

You can always have custom data in your parameters that is of whatever form you want. That way the plug-in would know whatever is in its parameters.

Yes, that will be the workaround. That's not too bad. I am just not sure if that will allow me to craft an XML workflow that can reference the generator clip. But I will try

vertical editing in the curve editor in FCPX, it needs to be rigged and the rig’s slider needs to go from 0 to 100

Awesome, I will try that out tomorrow first thing... Thanks once more, Daniel On Thu, May 25, 2017 at 6:16 PM, Darrin Cardani <dcardani@apple.com> wrote:

Daniel,

I’m not very familiar with FCPX XML, so I’m not sure I fully understand what you’re trying to do with #2. You can always have custom data in your parameters that is of whatever form you want. That way the plug-in would know whatever is in its parameters. (And those parameters can be hidden so they don’t show up in the UI.) But I don’t think there’s any way for a plug-in to get its ID within FCP’s project graph, if that’s what you’re after.

For #4, it seems that in order for a parameter to allow vertical editing in the curve editor in FCPX, it needs to be rigged and the rig’s slider needs to go from 0 to 100. Otherwise, it will just allow you to edit the time of the keyframes. So you can do the following in your Motion Template:

1) Open the inspector for your plug-in 2) Click on the pop-up menu for the parameter you want the user to be able to edit using the curve editor in FCPX 3) Click “Add to Rig” and select “Create New Rig” and then “Add to New Slider” 4) This will create a new Rig in your Motion Template named “Slider” which by default goes from 0 to 100 5) You can rename the Rig by Double-clicking on the name “Slider” in the layer list and entering a new name

Now when you add the generator to the timeline in FCPX and bring up the curve editor, you can select the Rigged Slider as the parameter to show and you’ll see the disclosure triangle on the right side. Click it and it should expand to allow editing both the value and time of the parameter.

Darrin

On May 23, 2017, at 7:11 AM, Daniel Walz <daniel@filmstro.com> wrote:

Thanks Darrin,

that was again very helpful. However I am having problems with 2) and 4), please see below.

Thanks again, Daniel

On Mon, May 22, 2017 at 10:05 PM, Darrin Cardani <dcardani@apple.com> wrote:

Daniel,

A few comments inline below:

On May 19, 2017, at 3:21 PM, Daniel Walz <daniel@filmstro.com> wrote:

Hi Darrin,

thanks for your answers, that brings me a few steps forward.

On Fri, May 19, 2017 at 7:15 PM, Darrin Cardani <dcardani@apple.com> wrote:

Daniel,

You mention that you are working on an audio generator and that you’ve written an FxGenerator. It’s not clear what you’re trying to accomplish, but FxPlug doesn’t currently support audio reading or writing at all.

[...]

To answer your questions:

1) You can get the current playhead time by using the -[FxCustomParameterActionAPI currentFxTime:] method.

Great, I overlooked that. That should do the trick.

2) The XML should contain the UUID of your generator. You may have to decode the data before you can get to the UUID, though. I haven’t looked at FCPX XML in a while.

Yes, that is the half that I know. But I need to know the UUID inside the generator as well, so I can import the generated clip and link it to the originating generator. Can I access the UID from an API inside the generator?

You can obtain your own UUID by reading in your plug-in’s Info.plist file and getting the value of the “uuid” key from the ProPlugPluginList dictionary.

I see. But I think we talk of different UIDs. The UID in the XML seems to be the path of the motion template. But what I am after is a way to identify the clip in the XML during running the generator, so I can generate a XML-Workflow to place the rendered output grouped with the generator clip. The generator clip I want to group looks like this: <video name="Filmstro" lane="-1" offset="154154/24000s" ref="r4" duration="7672665/120000s" start="86486400/24000s"> followed by the parameters. How can I identify that at runtime?

3) You cannot hide the controls of anything other than your own generator.

That is a pity, but I can live with that.

4) I’ll have to ask about this one.

This is still very important for us and the FCPX/Filmstro users ;-) Thanks in advance for checking that…

So the answer for this is that the curve editor in FCPX will only show the ability to edit a parameter’s value and time if the parameter goes from 0 to 100%. I’m not sure if you have to mark it as a percentage parameter or not, but that should be easy to test out. Otherwise, it only allows the user to move the keyframe in time, but not in value.

That doesn't seem to work. I changed my parameters to go from 0 - 100:

[parmsApi addFloatSliderWithName:@"Volume" parmId:kVolumeParamID

defaultValue:100.0 parameterMin:0.0 parameterMax:100.0

sliderMin:0.0 sliderMax:100.0 delta:1.0

parmFlags:kFxParameterFlag_DEFAULT];

I also found a checkmark in Motion "Show in Keyframe editor", but that seems to be unrelated for the publish, at least it didn't change the behaviour for me - I re-saved project in motion, removed the clip in FCPX from the timeline and added a new one. Still there is no option in FCPX to expand the keyframe editor to 2-D, as the Compositing / Opacity keyframes do.

What did you mean with mark it as percentage? I didn't see an option for that in the docs, and kFxParameterFlag_ have no option. However, it has the opposite flag: kFxParameterFlag_CURVE_EDITOR_HIDDEN. What is the intention of that flag? I tried it anyway, but setting it also made no difference.

5) If your generator is not adding images, you shouldn’t be using a generator. That is their sole purpose. Having said that, no, there’s no way to tell that a preview is being rendered vs. a regular render, nor is there a way to tell which preview is being rendered.

I know I am bending the architecture a bit, but just because I didn't find to add an to be rendered audio clip into the timeline, see above... But I found out, that adding the information into the motions generator large.png and small.png thumbnails is ok for a start.

6) You can right click next to the parameter’s name to bring up the menu which will allow you to publish the button. It’s a little confusing, unfortunately.

Ah I see, that's indeed not obvious. But I am happy, it works that way.

BTW, it would make sense for me to generate the audio from the same call as the video render. Is there eventually a callback from FCPXs render call, or will that only perform the renderOutput calls for each frame?

There are only the calls to -renderOutput:, there’s no additional callback.

Darrin

Thanks a lot for your time,

Daniel

Darrin

On May 16, 2017, at 7:51 AM, Daniel Walz <daniel@filmstro.com> wrote:

Dear fellow developers,

currently I am working on an audio generator plugin. So far I created a FxGenerator. But I have a few questions:

1) Is there an API to get the current state of playback, like playing, playhead and selected clip?

2) Is there a way to mark a generator clip so I can recognise it in the XML later on, so I can create a compound clip around the generator and the generated/ingested audio?

3) Can I hide the visual controls in the timeline for transform, trim, distort andCompositing?

4) When I publish the parameters (addFloatSliderWithName), it will only show one dimensional keyframes. What do I have to specify to get a 2-D keyframe (value over time) like e.g. the opacity?

5) Can I display a pictogram in the thumbnails in the timeline? I want something like the "Placeholder" clip. Because our generator is not adding any images, I want to show the user a distinction to video clips (like displaying a note symbol or alike). Is that possible?

6) If I add a button using "addPushButtonWithName", it shows up in motion, but I cannot publish it. Is there a setting I didn't see, or is there a technical reason not to have a button in FCPX? I wanted it to trigger an offline render step.

Sorry for that long email, and thanks for all insights,

Daniel

--

Daniel Walz | Software Developer

Filmstro | Music that Moves.

www.filmstro.com | twitter/filmstro | vimeo/filmstro

-- Daniel Walz | Software Developer Filmstro | Music that Moves. Sussex Innovation Centre | Science Park Square | Brighton, BN1 9SB daniel@filmstro.com | Personal mobile: +44 7491 836 008 www.filmstro.com | twitter/filmstro | vimeo/filmstro _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com