January 2008 - Pro-apps-dev

Re: Antialiassing in an FxPlug
by Pete Warden 30 Jan '08

30 Jan '08

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com It surely must be possible somehow? Any help to get me on the right path is appreciated! Is that any help? Pete _______________________________________________ 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… On Jan 28, 2008, at 1:46 AM, Gary Fielke wrote: I'm trying to use opengl multisampling in an FxPlug and I keep hitting deadends. a) GL_EXT_framebuffer_multisample isn't yet implemented (at least on my hw) b) I've set up a pbuffer with a multisample pixel format (GL_SAMPLE_BUFFERS = 1 and GL_SAMPLES = 4, and enabling GL_MULTISAMPLE) but no antialiassing is being done. http://lists.apple.com/archives/mac-opengl/2005/Oct/msg00074.html suggests multisample pbuffers aren't supported and suggests solution c) - which does work in an app, but cannot be used in an FxPlug. c) I cannot use a hidden window with an NSOpenGLView (created with multisample pixel format) as the shared context passed to the FxPlug is a CGLContextObj which it seems can't be used with the windowing system. Hi Gary, you're right, there are a lot of mines to step on when trying to get multisampling working in an FxPlug. Since as you discovered PBuffers don't support them, and I'm not sure of the state of FBO support, we've tended to do the same operations manually. I don't have much information on the state of hidden windows, since it's been a long time since we used them, but it's a pretty unusual path to be using these days and I wouldn't recommend it. Basically, allocate a pbuffer or FBO that's several times larger than the final output, and draw into it scaled up. Then as a final pass, scale down and resample the result into the output. One thing to watch out for with this is that you may hit card limits to the maximum texture size, or even how many textures will fit in VRAM at 16 and 32 bit float bit depths. FCP and Motion have checks to limit the output size they request to stay within those limits. Rather than allocating one large buffer, you may instead want to allocate several smaller buffers at the output size, draw separately into them as tiles, and then join them together by rendering them into the final output. This email sent to site_archiver(a)lists.apple.com

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Re: reset all controls and custom data
by Micah Sharp 29 Jan '08

29 Jan '08

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Re: reset all controls and custom data
by Micah Sharp 29 Jan '08

29 Jan '08

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Re: reset all controls and custom data
by Darrin Cardani 29 Jan '08

29 Jan '08

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Re: reset all controls and custom data
by Micah Sharp 29 Jan '08

29 Jan '08

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Re: reset all controls and custom data
by Darrin Cardani 29 Jan '08

29 Jan '08

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reset all controls and custom data
by Micah Sharp 29 Jan '08

29 Jan '08

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Re: question about fcp 5.1.4
by Micah Sharp 28 Jan '08

28 Jan '08

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Re: FxPlug vs Core Image vs Core Video filters question
by Darrin Cardani 28 Jan '08

28 Jan '08

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Brian, My answers are inline below: On Jan 28, 2008, at 10:36 AM, Brian wrote: Sounds like FxPlug is where I should focus. (pro apps) If needed to write some Film LUT code or custom video manipulation for a project, can I run an FxPlug (or CIFilter) via the DVD Player app (or a custom DVD player app)? I'm often working on film projects. And issues come up, like specific film stock color matching, and custom anamorphic image squeezed formats, or AOV imagery, etc. occassionally passed around in QT movies (I'll use FxPlugins) or on DVD (I'll use ??? - no idea - CI, FxPlug?). Can I get DVD Player to use (or write a DVD player app that can use) FxPlugins? Darrin -- Darrin Cardani dcardani(a)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… Curiousity... What does DVD Player use? What does DVD Player use for what? I wasn't aware that DVD Player had the ability to use any sort of plugin. (Or do you mean DVD Studio Pro? I'm also not aware of any plugins that DVD Studio Pro uses, other than maybe QuickTime Components.) FxPlugs currently only work in Final Cut Pro and Motion. I don't think that DVD Player can use CIFilters either. If you write your own custom DVD Player app, you could make it use CIFilters. (Technically, it would be possible to make it use FxPlugs, but it would be so much work as to probably not be worth it, and we wouldn't really be able to help you do it.) Can you elaborate a little? Currently it's possible to create an FxPlug or CIFilter which applies a LUT to some footage. Final Cut Pro and Motion both support anamorphic formats already, so that shouldn't be a problem. (You may need to tell the application what the pixel aspect ratio of your footage is, if it doesn't figure it out automatically.) I don't know what AOV means, so I can't comment on that. In what setting are the movies being viewed that they need a LUT applied to them? Is this only while editing, or is this to send off to a client who just has a stock system and is viewing them in, say QTPlayer or DVD Player? I don't think you can get DVD Player to use plugins. You could write your own DVD playback app, but you would have to implement all of the FxPlug host methods yourself. And you probably don't really want that, anyway. (Are the people viewing your footage supposed to be able to change the parameters for your filters during playback, for example?) Since it's not entirely clear what you're trying to accomplish, I'm not sure what to suggest. If you could give us a little more context, we might be able to give you a more clear answer. This email sent to site_archiver(a)lists.apple.com

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Re: Again a XML Question
by Eryk Vershen 28 Jan '08

28 Jan '08

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Andreas, regards, -eryk On Jan 28, 2008, at 5:18 AM, Andreas Kiel wrote: Hi all, Maybe somebody can shed some light here - thanks. Kind regards Andreas Andreas Kiel Spherico Nelkenstr. 25 D-76135 Karlsruhe Tel.: +49 (0)721 183 9753 eFax: +1 650 897 8094 eMail: kiel(a)spherico.com http://spherico.com/filmtools -- workflow tools for FCP P Please don't print this e-mail unless you really need to. _______________________________________________ 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/evershen%40apple.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… Since the <timebase> element is required to have an integer value, the <ntsc> element's only purpose is to indicate whether that integer should be modified by the (much loathed) NTSC multiplier - i.e. 1000/1001 - in order to arrive at the true rate. As far as I understand it the <ntsc> element doesn't really have any meaning within the <timecode> element since any timecode is intrinsically integral. The <displayformat> should be NDF except possibly when the <timebase> is 30, in which case it could be DF. So, in the first example, the file has a rate of 29.97 and is using 30 NDF timecode. In the second example the file has a rate of 23.98 and is using 24 NDF timecode. I'm working on application which does some kind of analyzing media in a project or sequence. While working on that I may have come to a point where do have a lak of understanding. Within the XML an audio node may look like the below: <file id="TD26 L016 Gwen"> <name>TD26 L016 Gwen</name> <pathurl>file://localhost/RAID/TDI/TDI-026/026_Lines/TD26%20L016%20Gwen.wav </pathurl> <rate> <timebase>30</timebase> <ntsc>TRUE</ntsc> </rate> <duration>674</duration> <timecode> <rate> <timebase>30</timebase> <ntsc>TRUE</ntsc> </rate> <string>03:09:22:25</string> <frame>340885</frame> <displayformat>NDF</displayformat> <source>source</source> </timecode> <media> <audio> <samplecharacteristics> <samplerate>48000</samplerate> <depth>24</depth> </samplecharacteristics> <channelcount>1</channelcount> </audio> </media> </file> So the timecode information says that this file is NTSC(True) 30 frames per second NDF. From my understanding there can't be this kind of TC in FCP as the current handling of 30 NDF is not NTSC - at least for video. Or is there a hidden handling which do match the options of current audio HDRs? It's even more confusing for me if I look at media using 24 frames per second which won't show the "NTSC" node for the rate: <file id="TDI_FULL_OPEN_REVISED"> <name>TDI_FULL_OPEN_REVISED</name> <pathurl>file://localhost/RAID/TDI/TDI%20Final%20Theme/TDI_FULL_OPEN_REVISED.WAV </pathurl> <rate> <timebase>24</timebase> <ntsc>TRUE</ntsc> </rate> <duration>1461</duration> <timecode> <rate> <timebase>24</timebase> </rate> <string>23:58:33:10</string> <frame>2071522</frame> <displayformat>NDF</displayformat> <source>source</source> </timecode> <media> <audio> <samplecharacteristics> <samplerate>48000</samplerate> <depth>24</depth> </samplecharacteristics> <channelcount>2</channelcount> </audio> </media> </file> This email sent to evershen(a)apple.com This email sent to site_archiver(a)lists.apple.com

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