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Re: Converting 720p to 1080i for delivery - 12 years ago
Really? How does one turn on scene detection in Motion? Dennis Couzin Berlin, Germanyby dcouzin - Café LA
Re: Converting 720p to 1080i for delivery - 12 years ago
Both 2:3:2:3 and 2:3:3:2 telecine pulldowns accomplish 24p-->60i conversion but not beautifully. There is telecine judder. Moreover if the device displaying the 60i does intelligent deinterlacing the visual result can worse yet. This might be a job for using optical flow software to convert 24p-->60p. Half the fields would then be dropped from the 60p yielding 60i. Optical flow transfoby dcouzin - Café LA
Re: converting 25p to 50p - 12 years ago
Andreas Kiel Wrote: ------------------------------------------------------- > I've uploaded a real simple 25 to 50 Twixtor > based conversion which is more or less basic > settings here -- you might compare it to your > result with Motion. > I think you'll agree that this result looks a bit > better than the optical flow method used in > Motion. ... Wow! Twixtor'by dcouzin - Café LA
Re: converting 25p to 50p - 12 years ago
Andreas Kiel Wrote: ------------------------------------------------------- > Yes. Twixtor does in this case. Whenever it meets > a frame which matches an original frame the > original one is taken. Thank you for this. It made me reexamine Motion's conversion which to my surprise also preserved the original frames. The motion artifacts from Motion looked so extreme that I thoughby dcouzin - Café LA
Re: converting 25p to 50p - 12 years ago
Andreas: when Twixtor converts 25p to 50p does it keep the original 25 frames intact, adding 25 interpolating frames? When Motion uses "optical flow" it creates 50 new frames from the 25, with sometimes unexpected content. (The distinction between interpolation and curve fitting.) Even with interpolation a problem arises at a straight cut. A new frame interpolating the two surroby dcouzin - Café LA
mitigating 8-bit damage - 12 years ago
Some FCP filters are 8-bit. Some auxiliary image processing software is 8-bit. strypes can recite a long list. Subjecting a really 10-bit project -- one shot or generated in 10-bit -- to an 8-bit process sacrifices the anti-banding advantage of 10-bits. I think there's a way to mitigate this damage. Raise the gamma of the original 10-bit from 2.2 to 3.33. Be sure to use a 10-bit processby dcouzin - Café LA
Re: converting 25p to 50p - 12 years ago
Make one simple setting in Compressor. Video: Settings > Motion > Frame Rate: 50. This makes 50p from the 25p by doubling every frame. Audio is Pass-through and the sound is correct. Dennis Couzin Berlin, Germanyby dcouzin - Café LA
Re: Exporting HD footage for DVD - 12 years ago
If you shot 1280x720, especially at ~60p, then the difference with a 720x480 ~60i DVD might be so great that the Blu-Ray is a better idea. I.e., if half the potential presenters can play Blu-Ray, and if the probability that they choose to present is more than doubled, then you've made more hits. Dennis Couzin Berlin, Germanyby dcouzin - Café LA
Re: two conform questions - 12 years ago
strypes thanks, maybe that does it. In Standard Video Compression Settings / Motion / Frame Rate / 60. (Custom frame rates are accepted here.) Then in Retiming Control / Set Duration to / so source frames play @ 60 fps. Working in 8-bit uncompressed there should be no recompression. Here's what I was doing, trying to do a stutterless PAL->NTSC conversion using Motion. It failed. Whby dcouzin - Café LA
Re: two conform questions - 12 years ago
Shane, what I want is a conform not a convert. I want the frames to remain as is and just the speed instruction to change. All Cinema Tools does when it conforms is to make a one word change to the original footer and attach a new footer. What exciting info can it pack into the new footer: new fps, new length, what else? It's hacking time. Dennis Couzin Berlin, Germanyby dcouzin - Café LA
two conform questions - 12 years ago
Question 1: Suppose you have a .mov file which you wish to conform to 60 fps. Cinema Tools doesn't offer this frame rate option. How can you do it? Question 2: Suppose you've conformed a 60 fps .mov file to some other frame rate using Cinema Tools. How can you undo this? Thanks. Dennis Couzin Berlin, Germanyby dcouzin - Café LA
Re: Using 24p correctly - 12 years ago
CaseyPetersen: SD DVD is still a viable medium here in Europe (PAL being nicer than NTSC). I have frequently to convert 1920x1080 to 720x576, and the scaling software (or hardware) makes a big difference. Compressor, regardless of its Frame Control settings and long run times, is a mediocre rescaler. Innobits Video Purifier does it better. I have serious issues with Video Purifier, but it'sby dcouzin - Café LA
Re: Using 24p correctly - 12 years ago
Casey Petersen, if your results look good except on tube TV, then why worry? Who watches DVDs on tube TVs today? But I share your curiosity: if Hollywood DVDs are 24p and your DVDs are 24p and each relies on the players to "telecine" them, then why does your 24p look worse in terms of "strobe/flicker" (which is probably telecine judder) than Hollywood's? Strypes' suggestionby dcouzin - Café LA
Re: file formats, codecs and confusion. - 12 years ago
I use both ClipWrap and VoltaicHD to convert .mts files to .mov files in ProRes codecs for FCP. They are inexpensive programs. ClipWrap runs faster than VoltaicHD, but ClipWrap sometimes can't accomplish a conversion (because of its reliance on QuickTime). Then I use VoltaicHD. When recently I had .mts files somewhat slaughtered in an SD card rescue operation, VoltaicHD was essential for convby dcouzin - Café LA
Re: A Machine to Upload Mini DV? - 12 years ago
I also bought a Sony DSR-11 deck so as not to wear out my Sony DSR-2000VXE camera but now wonder if this was rational. Using the camera to play back its tapes once to the computer can only double the wear rate to the camera's tape mechanism. Consider: will your camera's tape mechanism in fact wear out from the use you plan for it, and what will the repair cost be versus the cost of a deck? Dby dcouzin - Café LA
Re: fully customized settings in Compressor - 12 years ago
Jon, now I understand your remark: "when you pasted it it got converted to ASCII"; but I think it is exactly that ASCII string in the .settings file itself. If customCodecData contains program code, then isn't step #1 deciphering the string to find out the source code? Is the string just some typographic abbreviation for the code? Or is it compiled code? The cocoadev.com page doesnby dcouzin - Compressor - Media Compression and Conversion
Re: OT: 4:4;4 THE FUTURE OF VIDEO?????? - 12 years ago
Good point that a lossy codec might discard dither as noise and so reduce the effective bit depth. I'm curious: where is dither typically introduced in the image chain? Do some cameras output dithered images? Is dithering just spatial or also temporal? Does system noise sometimes accomplish useful dither?by dcouzin - Café LA
Re: fully customized settings in Compressor - 12 years ago
Yes, customCodecData (in which I've inserted line breaks, perhaps not correctly) looks like about 27 instructions which must control the frame size and interlacing, among else. It would be nice to fathom customCodecData and gain control over these parameters. AAAAAAAAAAAAAAAAAAAChHNlYW4 AAAABAAAAGgAAAAAAAAAYc3ByZg AAAAEAAAAAAAAAAAAAAAIAAAAYc2xldg AAAAEAAAAAAAAAAAAAAAAAAAAYc3VzZw AAAAEAAAAAby dcouzin - Compressor - Media Compression and Conversion
Re: fully customized settings in Compressor - 12 years ago
Jon Chappell Wrote: ------------------------------------------------------- > When you click the Settings button next to Video, > it pops up a dialog. This dialog is populated with > custom fields specified by the codec. The > "customCodecData" stores the data from this dialog > in encoded form. Jon Chappell Wrote: -------------------------------------------by dcouzin - Compressor - Media Compression and Conversion
Re: fully customized settings in Compressor - 12 years ago
strypes Wrote: ------------------------------------------------------- > Have you tried this: > > > 1/Screenshot2010-11-07atPM052948.png > > You can definitely increase the bitrate as you > deem appropriate. Thank you so much for pointing this out. This Apple preset is useful after all. It's funny that the setting is for "data rate" rather than sepby dcouzin - Compressor - Media Compression and Conversion
Re: OT: 4:4;4 THE FUTURE OF VIDEO?????? - 12 years ago
strypes, very true that chroma-keying requires that the chroma resolution match the luminance resolution. I should have qualified my answer to non-VFX works. Isn't this the majority of video? Concerning the log vs. linear question, I used 10-bit log vs. 14-bit linear just as illustration. Similarly, even 8-bit log gives a visually smoother luminance scale than even 12-bit linear. In the wby dcouzin - Café LA
Re: OT: 4:4;4 THE FUTURE OF VIDEO?????? - 12 years ago
Chroma subsampling, though analog color TV did similar, is a very smart idea based on human visual science. There are 3 cone types in the retina (peaking at 450nm, 530nm, 560nm, not exactly for Blue, Green, Red) and yet the optic nerve does not carry these 3 signals to the brain. It carries instead sum and difference signals. They make a Red vs. Green channel, a Blue vs. Yellow channel, and aby dcouzin - Café LA
Re: fully customized settings in Compressor - 12 years ago
Jon Chappell Wrote: ------------------------------------------------------- > There are lots of extra settings in those files > that aren't made available to the GUI, but bear in > mind that sometimes that is for a reason. Many > formats have limitations and changing these > settings could produce corrupt files. Jon, preset "QuickTime H.264" does everything I wanby dcouzin - Compressor - Media Compression and Conversion
Re: fully customized settings in Compressor - 12 years ago
strypes Wrote: ------------------------------------------------------- > Restrict bitrate to something much lower. Unfortunately, Inspector greys out bitrate settings for that preset. strypes Wrote: ------------------------------------------------------- > For further customization of H.264 settings, you > could try using the x264 encoding library > instead. > Thaby dcouzin - Compressor - Media Compression and Conversion
fully customized settings in Compressor - 12 years ago
Using Compressor 3.5, is it possible to create fully customized settings? I know only to start with one of the preset settings and then modify it using Inspector. However the presets don't allow free modification. For example, suppose I want a H.264 compression from a 1080p50 project. Compressor preset named "H.264 10.3Mbps" does not allow setting frame rate to 50. Compressor preseby dcouzin - Compressor - Media Compression and Conversion
Re: Render Madness in ProRes 422 - 12 years ago
Brad Johnson, your material is a mixed bag of picture qualities. You must decide if you want it to look like a mixed bag, as a 35 mm movie might intercut super 8 "found footage" and whatever, or to look homogeneous. You homogenize it by converting it all to SD. This is an aesthetic question, not a technical question. If you choose to make it all HD then rendering is slower. Yoby dcouzin - Café LA
not quite HD DVD - 12 years ago
I have a 720p50 project which I'd like to keep in that format and I'm willing to make a little inaccessible. Making a Blu-ray disc would be proper, but since the project is just 40 minutes long might a pumped-up DVD be just as accessible? I used Compressor to make an MPEG-2 having 12 Mb/s (average), 18 Mb/s (max) bitrate. I used DVD Studio Pro to burn the disk. At least one player can play theby dcouzin - DVD Studio Pro
Re: duplicate a shake using SmoothCam? - 12 years ago
Indeed, my effect was very simple so I hoped to do it within FCP. I've never installed Motion, assuming it is specialized to animated, geometrical motions, heavy on "optical flow", which I don't need. "Just drag and drop to send particles exploding through space. Swing cameras around an object with breathtaking ease." Is that rocket science? SmoothCam, as I understand itby dcouzin - Café LA
Re: duplicate a shake using SmoothCam? - 12 years ago
strypes Wrote: ------------------------------------------------------- > Big deal. It doesn't take that long to do it in > AE. And coming to think of it, Motion too. There's > a feature called match move. AE is outside the scope of this forum. As for Motion's "match move" feature, is a random shake a move? Can Motion identify the shake just as SmoothCam does? Perhapby dcouzin - Café LA
Re: duplicate a shake using SmoothCam? - 12 years ago
One must be in deep thrall of FCP to believe its authors had clear intentions for what the program does. It's a cobbled mess of incomplete and overlapping functions. Experts like Hodgetts' think it needs to be reconceived. This isn't a forum of FCP worshippers but FCP owners-users. We've invested time and money in FCP and we want to get the most out of it. Thinking SmoothCam, made to smoby dcouzin - Café LA
