Wednesday, January 31, 2007

FlipFactory

I just got back from a presentation by a representative of Telestream. Now probably best know for their Flip4Mac, which is how to watch Windows Media on a Mac, Telestream has a long history of transcoding video. We are looking at FlipFactory to deliver video to our playout server at Link TV. Around $20K for the software to transcode from QuickTime to an MPEG-2 file that makes the playout server happy. There's a 15-day trial version, which I need to check out at the TeleStream website. The cheaper Episode line of products from Telestream support transcoding to the Grass Valley playout server, but no other playout servers.

FlipFactory also has some new features for generating RSS feeds for podcasts (as well as all the codec settings for video podcasts.) I was also reminded at the presentation of libsyn.com, which is the cheap way to go for podcast hosting.

Skype 2.5 Adds Videoconferencing on Macs

As great as iChat is, wouldn't it be nice if you could videoconference with Windows folks? OK, someone who uses a Windows computer probably isn't worth the effort, but the new Skype for Mac at least opens the door. Version 2.5 is now "gold" and includes support for audio, video, text, and SMS messaging. Download Skype 2.5 for Mac here.

Tuesday, January 30, 2007

Understanding Scopes in Final Cut Pro

Understanding Scopes in Final Cut Pro is a good video tutorial by Larry Jordan. Covers all the important basics of using the waveform and vectorscope in FCP. These same principles apply to using a real waveform and vectorscope--essential tools for getting reliable information about your picture. I found this link over at FresHDV.com.

Blow Up Video Stills or Fun with Fractals

So you have to make a DVD case and you have no production stills or artwork to use. You can use stills from video but they can only be so big on paper before they look like junk because they are too lo-res for print (especially if you only have standard-def video.) Well fractals have come to the rescue, according to this tutorial at DV.com Repurposing Video for Print. You need to register to see the article. It is basically a tutorial on using Genuine Fractals. There's a free demo version of Genuine Fractals which allows you to scale 20 images over a trial period of 30 days. It works as a plug-in for Photoshp or Photoshop Elements. It boasts that you can scale an image up to 800%. I just did some printing with something that I blew up 300% and it looked good.

Monday, January 29, 2007

Download YouTube Videos

I wanted to send someone a QuickTime version of a video on YouTube the other day. What to do? Here's what I figured out--I'm sure there's other ways to do it, but I know this one worked for me. I copied the link for the video from the movie's page (YouTube posts it prominently on the page to encourage people to embed videos on other webpages.) There's a website keepvid.com that will take that link and give you a new link to download the YouTube video. So now you have a video in the flash format on your desktop. But I wanted a QuickTime. I used a free program called iSquint to convert the flash video to an MPEG-4 QuickTime. It only took a couple of minutes to transcode a 30-minute video on a MacPro 2.66 GHz. iSquint is meant to transcode for iPod, but the MPEG-4 settings seemed to cause no degradation to the YouTube video.

In a simiilar vein, there's a post on DVGuru about ffmpeg, a free app that will let you encode into Flash. If you do want to post to YouTube, it seems to make sense to encode it yourself since their built-in encoding seems to do a poor job to me.

Saturday, January 27, 2007

Final Cut Pro 5.1.2 Features

I'm just starting to fiddle around with Final Cut 5.1.2. Two nice new additions are "live" video scopes and FX Plug support. The "live" video scopes means that the waveform monitor, vectorscope, RGB parade, etc. will give you a continuously updating display while you play video. Almost like having real scopes. However, the "live" display doesn't come close to capturing the full detail of the image--not as good as having a real waveform monitor but still a big improvement.

FX Plug support allows you to bring over some filters, transitions, and generators from Motion into Final Cut Pro. I was just using the Light Rays filter yesterday in a project. Pretty nifty. There's a setting you have to change to activate the new filters, which is described in this good article on 5.1.2 at kenstone.net by Andrew Balis. There's also a list of all the new filters there and some nice demonstrations of what you can do with them.

Free Sound Project

Free Sound Project has a collection of recorded sounds, including effects, for download. I'm not sure of all the licensing issues but the next time I want a swish or a whoosh I'll be visiting them. I heard about them at DVGuru because one of their effects ('Loud Male Screaming') was used in the Alfonso CuarĂ³n film "Chilrdren of Men". It's fun to just browse too and listen to some random sounds--tibetan chanting, dog growling, birds in the forest, ringing glass.

Wednesday, January 24, 2007

Watch out HDV, Here Comes AVCHD

This is an interesting poll on formats. The poll is from camcorderinfo.com where people reported what format they were most likely to buy into. HDV came out on top with 35%, but AVCHD, the tapeless format, raked in about 29% interest. And as I wrote earlier, there is no official way to edit AVCHD yet. Does that mean many shooters don't carry about editing or a lot of people can't wait to throw away their tape? The AVCHD format is split between people who were interested in the hard drive camcorders (14%), the SD card camcorders (11%), and the DVD camcorders (3%). But when you add that up, it represents a challenge to HDV. Granted, this is really a site geared towards consumers, but not totally (they do a lot of good covereage on the sub-$10k camera market with some kick-ass reviews now and then.) I've already bought two HDV decks, so I hope it'll be around for a while.

Attend Adam Wilt University

There are sessions from the DV Expo conference available here. As I've written earlier, I'm a big fan of Adam Wilt, and you can get a full 3 hours of him here. I watched about an hour of this, and there are many golden nuggets of info about sub-$10K camcorder market (Z1, DVX100, PD-150, HVX200, etc.). I know I'm not a shooter, but there are many things in here that would have solved issues that I've had to deal with in post. Here's a couple of things that I picked out that have troubled me in the past. In countries with 50 Hz electrical systems, you can get bad flicker with fluorescent lights--so turn your shutter to 1/50 or 1/100 setting to get rid of the flicker. The PD-150 always has auto-shutter on, unless you manually punch in a shutter setting. The skin detail control actually removes skin detail. He does a good demo of how it works at the session. Skin detail's purpose: to make people with wrinkles, pores, and other imperfections look better.

I found this over at DV Guru. You need to register to watch, but I recommend it. Adam Wilt explains complex technical stuff very sucinctly. He makes you understand how these cameras work, and lets you know how to use that knowledge to make better pictures. There's also adamwilt.com, which is worth taking a look it.

Sunday, January 21, 2007

AVC: More Format Wackiness

OK, so we are just figuring out how to edit with the HDV format when Sony, Panasonic, and JVC spring the AVC format on us. This high-definition format comes in two flavors AVCHD and AVC-Intra: the first is consumer-oriented and the second Panasonic is putting into its professional line. The AVCHD format is not being used on tape but on hard drive, flash memory, and DVD camcorders. Its supposed to be more efficient than HDV, but in the consumer mode works at lower data rates. Panasonic announced a new camcorder AJ-JPX2000 in December that records AVC-Intra onto P2 cards (like the HVX200). AVC-Intra records 10-bit video and is supposed to be better and more efficent than the DVCProHD format.

What got me going is this tutorial on how to edit AVCHD, which I found via DVGuru. Sounds laborious and its Windows-only. It will be interesting to see what Final Cut does to support AVC. I do like the idea of shooting onto off-the-shelf SD memory cards, as opposed to the pricey P2 cards, but who knows when it will be practical.

Saturday, January 20, 2007

OT: Your Rights to Videotape in Public

Via ProLost, a link to a guide to the legal rights of photographers. An interesting read for anyone who has (or might) be told to turn off a camera when they don't want to. I found this link over at the website ProLost by the guy who wrote "The DV Rebels Guide"--a new book for aspring movie makers.

Link

Wednesday, January 17, 2007

Video Levels in FCP by Graeme Nattress

"Video Levels in Final Cut Pro" is a good, very detailed article on how Final Cut Pro deals with video levels. It just happens that at my facility we have been using a non-standard "wrong" way of handling video levels since we started editing. We now have to make a transition to the standard way of representing luminance, which is going to be a bit painful.

Essentially we have not been using the appropriate level for black in Final Cut Pro because of how our equipment handles the conversion of analog video to digital video (and vice versa, converting digital to analog.) In analog video, the luminance value of an image is represented on the IRE scale. Black should equal 7.5 IRE while white is 100 IRE. Grays are in between with higher numbers being lighter than lower numbers.

However, North America is the only place in the world where black is 7.5--the rest of the world defines black as 0 IRE. The use of 7.5 IRE is also called "setup". This can create a problem when you are digitizing an analog signal. Does the analog-to-digital converter know which standard of black you are using (i.e. 7.5 IRE or 0 IRE.) In our case, the converter we used to digitize did not know what the appropriate black level was for us. It assumed our black level was 0 IRE when in fact our tapes, like all analog tapes in North America, were calibrated to have black at 7.5 IRE. This scenario is described in the article under the heading "Not Adding or Removing 7.5 IRE Setup." I made a diagram (fig. 1) to represent this.

Final Cut Pro, like digital tape formats (e.g. DVCam, HDV, DigiBeeta), does not have any use for "setup". For example, in the waveform monitor display in FCP, black levels read 0 on the scale. The waveform display is a representation of the luminance of a picture. The graphic at the top of this post shows a waveform display of a gradient from black to white. Technically, this isn't an IRE scale because IRE is an analog-only scale. The waveform display is meant give you an approximation of what the luminance values of your video should look like in the analog world. On all of our old footage, our black levels coming from our Beta tapes read 7.5 on FCP's luminance scale. Really the appropriate level for black in FCP would have been down to 0 on the FCP waveform. Unfortunately when I started at Link TV, we didn't have any way of adjusting our black levels while digitizing--we did not have a processor amplifier that could have adjusted the setup/black levels nor did we have an analog-digital converter that we could tell to "remove the setup". The Sony DVMC-DA2, which we used to digitize our Beta tapes, assumed that our blacks were 0 IRE and couldn't remove the setup from our 7.5 IRE black analog video.

To compensate for black levels on our digitzied video, we essentially redefined what black was in FCP. FCP wanted black down at the bottom of its scale at 0 on its waveform monitor. But all of our analog video that had been digitzed had blacks at 7.5 on the scale. We couldn't just leave a blank space in the timeline for black because this was blacker than the blacks in our analog video. So we had to make our own black clips with a color matte with a lumiance value of 4. (Logically you would think the matte clips would have a luminance value of 7.5 but that was too bright. To know why read farther down in Graeme's article on how FCP adjusts the gamma of still images.)

Well, we are finally moving over most of our editing systems to professional analog-digital converters from AJA and BlackMagic. These converters have software settings that allow you to control whether setup is removed while digitzing an analog signal. So it is possible to capture analog video with 7.5 black levels that gets digitized to FCP's default value of 0 for black. The AJA or BlackMagic hardware will also add the setup to the signal as it goes out the analog outputs back to Beta tapes. So when we lay off, our Beta master tapes will also have the standard 7.5 IRE black for analog videotape. So the FCP settings are right (black at 0), and the black levels on our Beta masters are right for North America analog video (black at 7.5 IRE.)


We haven't made the switch yet. We currently have a hundreds of promos that we have to update every couple of months that we keep on the system. Ideally we will make a clean break in the near future. After that every project that we either start or have to lay off while have blacks at 0 in FCP. That will be a lot of busy work, but we will finally be using the correct standard for our video. To get the old projects using black at 0 in FCP, we will probably use the color corrector to lower the black levels down to 0 in FCP. It would be great to redigitze all of our projects, but I think that is just too much work.

The article goes into more detail by describing the ITU-601 standard as well, which defines luminance values on an 8-bit scale of 0-255 (I skipped that scale in this description to try and make this complex issue simpler.) The article also describes some interesting issues with luminance values when importing graphics (e.g., from Photoshop.) The author Graeme Nattress is a great engineer type. He authored a good plug-in for converting PAL video to NTSC that we use sometimes at the office. Compressor does a better job of doing standards conversion, but his plugin is easier to use and faster.

Sunday, January 14, 2007

Good Stuff Over at DV.com

DV.com, which started out as a magazine, is not the same as it was during the DV heyday, but their stable of expert commentators is still around churning out good articles. I'm thinking of Adam Wilt who just put out a review of the new Canon XH-A1,which sounds like an awesome camera. Trish and Chris Meyer who recently wrote a good article "Brighter Whites, Richer Colors" about luminance values when working in After Effects. And Jay Rose, their sound guy, who just gave me this good tidbit in this article on echoes that I need to remember:
"Cut down the reflections. Hang sound blankets on the walls so they don't reflect as efficiently. Or spread movers' pads, fiberglass batts, production assistants, or anything else that'll absorb sound. Bunches of helium balloons can calm the echoes from hard domed ceilings."

We've been shooting some stuff in our office that sounds really boomy. Hopefully we can get a hold of some of the stuff that Jay talks about to cut down on the echo. I keep a copy of the Audio for Post Production book by Jay Rose around the office, which I recommend for both beginners and experienced editors who want to dig deep into sound issues.

You do need to register to use DV.com, but I think its worth it because of the quality of their articles.

Saturday, January 13, 2007

More on Apple TV & Video Podcasting

While iPhone has stolen all of the headlines (and probably justifably so), I think Apple TV does shine in liberating the video podcast from the computer and bringing it to the TV set. Apple's demo does a good job of approximating what the user interface is like. Click on the Podcast link down their webpage to see more or less what I saw with an actual unit at Macworld.

Granted podcasting is a distant cousin to the internet craze of the moment--YouTube. It would be a challenge to transfer all of the chaos of shared video from the computer to the TV, and I don't think Apple is going to try and do that. For the time being, I still have some hope for the medium of video podcasting to reach a broader audience, especially with consumer-friendly products like the Apple TV, not to mention the video iPod, and coming soon the iPhone.

Wednesday, January 10, 2007

Random DVD Encoding Tidbit

I picked this up from a Studio Daily video tutorial that I heard about at DVGuru.com. Larry Jordan gives a couple of pointers on working with Compressor for going to DVD.

For audio, use Dolby/AC3 compression if you have more than 20 minutes but tweak the default setting. Larry says to turn off dialog normalization, which ends up lowering the volume on your sound. To do this set dialog normalization to -31. Also turn off the preprocessing by setting it to none. Larry shows you how to do this in the video and also gives a general overview on choosing your settings for compressing for DVD.

Link

Tuesday, January 9, 2007

Apple TV


Apple gave more details about their entry into the home entertainment market today. Fomerly, iTV, now Apple TV is basically a way to stream movies, TV shows, podcasts, music, and photos from a computer (Mac or PC) to your "widescreen" TV. For some reason, Apple isn't interested in people with TVs that are 4x3 aspect ratio, like myself. The Apple TV can either playback media streamed from a computer or it can play video stored on Apple TV's 40GB hard drive. You add video to the Apple TV's hard drive by syncing it with your Mac or PC using iTunes. The Apple TV supports 802.11b, g, and n wireless standards. I'm guessing g & n will stream video, but b won't, especially not high-def video. Yes, the Apple TV will support video with a resolution of 1280x720. Hopefully, they'll start selling some high-def movies soon on iTunes.

So for Link TV, this is a neat little device to watch our Mosaic podcast. It gets those QuickTime movies that are up on the internet, over to the TV. A cool way to watch Link TV if you don't have satellite TV. But for $299, that's a little pricey. For $399, an Xbox 360 gets you a gaming system with downloadable high-def movives that you can buy and rent. I hope Apple can make their video services more compelling, including high-def content and movie rentals soon. Apple TV should be available in February.

The new iPhone from Apple is really exciting. I won't go into all of the features here, but it is a widescreen video player as well. While it's not going to take over the cellphone market overnight, I could see in 3 years, there being as many iPhones out there as there are iPods now.

Monday, January 8, 2007

Toast 8 Includes TiVo ToGo

Roxio just announced the new version of Toast, their disc burning software. TiVo has collaborated with them to offer the Mac version of TiVo ToGo. The new Toast also includes support for burning Blu-ray media (these are just data discs, not Blu-ray movies in high-def.)

TiVo ToGo allows your Macintosh computer to access the shows on your TiVo over your home network. You copy your tv shows over to your Mac, and then you can burn them to DVD or encode them for your iPod. Pretty nifty.

While Windows users have been able to get a basic version of TiVo ToGo for free, Toast 8 costs $99. A freeware program is also available that allows your Mac to access your TiVo, called TiVoDecode Manager. I'm guessing that Toast is more reliable and much-more user-friendly. One advantage I could see with TiVoDecode Manager is that you aren't stuck with the file export options that Toast leaves you with.

Here are some screenshots at Wired of how Toast works with TiVo.

Link

Sunday, January 7, 2007

Region-free DVD Playback with VLC

The free application VLC got some bad press this week when some security vulnerabilities were revealed. But I also wanted to point out something cool that this media player will do. Namely, allow you to play DVD's from anywhere in the world.

DVD's have a region specification. DVD's that you buy will usually only play in one region of the world, such as North America, Europe, China, etc. So if you put in a DVD that you say bought in England, your Mac will most likely pop it out and say that you can't watch it. Here's how to get around that with the help of VLC.

Mac's DVD Player application checks to see which region a DVD is, and if it's not the region of your Mac (in the US, region 1) then the Mac will automatically eject the disc. Frustrating. VLC on the other hand will play a DVD from any region. So how do you keep DVD Player from interrupting your DVD watching? In System Preferences, go the CD's & DVD's preferences. Under the "When you insert a video DVD", choose "Ignore". Now when you insert a DVD, DVD Player will not automatically start up. So instead, you start VLC and you use the "Open Disc" command to start up your DVD.

By the way, you can change the DVD region that your Mac will play, but only a limited number of times. I think it's around 5. The problem is if you decide to change the region to one other than region 1 (i.e., North America), then you could get your machine stuck on another region (i.e.., Europe) when you run of your chances to change the DVD region. So if you Mac asks you to change the DVD region, say cancel.

Here's MacUpdate's listing of VLC if you want to download. BTW, Macs will also play back DVD's in the PAL format, unlike your run-of-the-mill DVD player. If you have a disc in PAL which does not have a region code, then DVD Player will play it with no problems.

Friday, January 5, 2007

Sonnet Tempo E4P = Mac Pro HD Expansion


Consider this a plug, not for a product, but for AMUG (Arizona Mac Users Group.) They do awesome and incredibly thorough reviews with a focus on storage. They are really on top of the products for external SATA storage. In this review, AMUG puts a Sonnet PCIe card through its paces and get over 700 MB/sec. throughput out of it. Wow.

So SATA is great for uncompressed HD work, but for the standard-def work I do, I still prefer the G-RAID over external SATA most of the time. The $299 cost of this 4-port PCI-E SATA hosts card makes for a pricey entry point into SATA storage. While cheaper 2-port cards are available, 2 drives aren't enough to justify filling up a PCI-E slot. OK, so there's port multiplier storage devices (means you can have more than 1 drive per SATA port), but those aren't cheap either. I don't know what the future of firewire is, but for the moment SATA is not the slam-dunk replacement that I was hoping it would be.


Link

Wednesday, January 3, 2007

ScopeBox


Excuse me while I point out a cool looking production tool. It's a new program called ScopeBox. It basically is the Mac version of DV Rack (now owned by Adobe.) ScopeBox will take an input from a camera and acts like a field montior, a vectorscope, and a waveform monitor. It also does other things with the signal, like RGB parade, audio meters, and it will record direct to your hard drive. There's a DV version on sale for $299 until 1/15--that's $100 off the normal price. There's a HD version too, but unfortunately no HDV support yet. A free trial version is available. Here's a hands-on review of ScopeBox that I found at DVGuru.com.

In the free category there's a simple DV monitoring app called FlipFlop that will display a DV input from firewire (no HDV support either.) Of course you can always just use Final Cut's Capture window to do some monitoring on a computer.

Free, Simple Logging Utility

Not a bad away to log, transcribe, and it's free. This program basically allows you to grab timer info from a QuickTime movie and then type away to comment on that point in a movie. You can also slow down playback and pause with keyboard commands if you are transcribing. You can use the original media (e.g., DV files) or compressed files that are easier to move around (e.g., MPEG4, H.264, or even MP3.) I checked out the Mac version and there's even one for Windows. Registration is required to download at dvcreators.net. I wish this thing read the timecode from the files, but when its free you can't really complain.


Link

Tuesday, January 2, 2007

QuickTime Security Vulnerabilty

This seems like a pretty worrisome security alert for QuickTime. A malicious QuickTime file could take over your system (Mac or PC). You could come across one of these movies on a webpage or in an email. The good news: no malicious QuickTime movies have been found in the wild. The bad news: code has been released to the public to exploit this flaw. Nothing to panic about yet. Let it be a reminder not to open attachments unless you know who it comes from and the attachment is explained in the email.
Link

The Wonderful World of XML & Metadata

This stuff is pretty deep, but interesting. The article is called "What is XML and what does it mean for Final Cut Studio users?". OK, I'm not going to try and describe what XML is, but let me point out some cool applications that use XML.

Spherico makes a plugin that will convert text into FCP titles called Title Exchange Pro. This could help with creating subtitles if you already had a translation (hello, Latin Pulse.)

Another cool looking application is program called Final Log. It's used for logging and transcribing and will get info from and send info to FCP through XML. Final Log is standalone or works with Filemaker Pro.

Also there's CatDV. It seems like a good media asset management system for video that's moderately priced and has good FCP integration. I need to look more into this.

Link

About this Blog

As the description of the top says, this blog is about video post-production. There's so much great information on the Web about video, and I hope this blog can be a guide to information that is relevant to video editing, post-production, Final Cut Pro, and Macintosh stuff. I'm getting a lot of the information that I will post here from a couple of great blogs--DVguru.com and HD for Indies.com. I encourage you to read those blogs if you have the time.

There's no real structure to this. I'm just going to post info as I come across it on the Web or as I learn something in my work that seems relevant to others. Hopefully the blog will help in our efforts to keep on top of the constantly-changing technology involved in post-production.

Get the Specs for your Mac


More on hardware upgrading. Mactracker is a nifty little, free app. It seems to list every piece of hardware that Apple has ever made with all of its hardware specs. This is helpful if you want to upgrade your RAM or hard drive or add a PCI card. You also can get system info for a Mac you are using with About This Mac info under the Apple Menu.

Mactracker also has some fun stuff (e.g., it will play the "death chime" for the Power Mac G3, which unfortunately I have heard before.)


Link

Tutorial on Mac Pro Upgrades

This is a good video tutorial on doing basic upgrades on the new Mac Pro's. This is the kind of stuff that I do on our Macs--upgrade the RAM, add a hard drive, add a PCI card. This only applies for the new Intel Mac towers but the info is similar to what you would get for other Mac tower computers. Although adding a hard drive to a G5 can be much trickier than this.

The only thing I think it overlooks is emphasizing taking precautions against static electricity. A discharge of static electricity can fry your circuits. Especially this time of year when the humidity is low and people are wearing wool, there's lots of static electricy flying around. Precautions should be taken anytime you open up a computer or an piece of electronics. I always use a static wrist strap when I work with computer components. I also touch a metal cover to an empty PCI slot before I touch any computer components (that's assuming that there are covers for the empty PCI slots.)

Oh, the video also doesn't say basic stuff, like make sure the computer is off and unplugged before you open it up. Basically doing hardware upgrades isn't that hard on Mac towers, but there's always a possibility that you can mess up the computer if something goes wrong.

The video is done by dvcreators.net and I found the link over at DVGuru.com. I noticed that the Brightcove Video wasn't working. You can also get the video as part of DV Gear Talk podcast on 12/11/06.

Link to iTunes Podcast Feed
Link to Brightcove Video

Easy RSS Feed Subscription (for Macs)



It's easy to subscripe to this blog using Safari's RSS feed capabities. That way you don't have to visit the page to know if it's been updated. Safari will check the page for updates automatically. Here's how to subscribe to the RSS feed for this blog using Mac's Safari.

On the blog's main page, click on the RSS icon on the right side of the address field, which is at the top of the page. You will then see the RSS feed in your brwoser window, which just looks like a stripped down version of the blog without much formatting.

The way I like to subscribe to an RSS feed is to add it to my bookmarks bar at the top of the page. To do this, drag the icon on the left side of the address field (usually a grey box) onto your bookmarks bar (that's the area just below the address field.) When there's a new post, Safari will add a number next to the bookmark, notifying you of how many unread posts are available at that feed (e.g. "Hype Link (1)" ).

So if you can make space for me in your bookmark bar, it's an easy way to know when there's a new post on the Hyper Link blog.