Switching video source for live video streaming

Is it possible to switch the video source from a video
capture card to a standalone video during live video streaming? We
are streaming live TV and we want to skip playing any
advertisements.
If this is not possible, what is the best way skip playing
any advertisements? Do we have to do it at the client player level
i.e. catch an event from the video player and play a predefined
video when the live video stream is stopped?

Thanks for reporting your fix. That news could be very important to those who delete events from their hard drive to save space, but may want to reload them later to do some editing.
It sounds like the key is re-importing with exactly the same name as before.
Just curious: What kind of camcorder? Was it MiniDV tape? Flash? Hard drive? DVD?
It strikes me that with tape it might be difficult to reimport an exact match. If you start on a different frame, the pointers could be off. But if that is not the case, it is very good news.

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Detecting Bandwidth Quality for Live Video Streaming

Hi,
We have an application that is using FMS to share slides (swf,jpg, etc) with another client. We added a video as an option. We would like to verify as often as possible the bandwidth quality between communications in order to suggest the user to close video if we notice bandwidth is not optimal.
We've been experimenting doing a bandwidth detection every 60 seconds, but I am wondering if there are specific guidelines to do this for live video, like how many times one should verify bandwidth? Is it ok to take one reading or should we take a few readings and then average out?
Taking into consideration that every time we test bandwidth fms seems to flood the connection to figure out the bandwidth, I was wondering if anyone has some insight into this.
Kind regards.
+LA

Please find the best practices for dynamic streaming at this place
http://www.adobe.com/devnet/flashmediaserver/articles/dynstream_on_demand.html
Let me know if that doesn't suits your need, then I will try to figure out something else for you.

Need license for using H.264 Video codec for live stream with FMS 3.5 series

Hi,
I am creating a live audio-Video chat application in which I use H264 video codec for live streaming. I am using Flash Media Server version 3.5.7. I read some where that H.264 Video streaming using FMS required seperate licencse. So I want to confirm , It is true that H264 video streaming required seperate license? If yes then what is the procedure to get license.
Please let me know its urgent.
Regrads,

Hi Again,
Thanks for your reply.
Here are some articles/posts which says about Royalties to use h264:
http://www.mpegla.com/Lists/MPEG%20LA%20News%20List/Attachments/226/n-10-02-02.pdf 15:27
http://www.mpegla.com/main/programs/AVC/Documents/AVC_TermsSummary.pdf
http://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=65403&PageNum=3
http://www.mpegla.com/main/programs/avc/Documents/AVC_TermsSummary.pdf
According to these, any product/service provider, need to pay one time fee based on # of subscribers if we are using h264 for encoding and is charging fee from its users.
About our business: We are web-conferencing solution tool provider and are using Flash Media Server version 3.5.7. I for audio/video. Please help me out if h264 is really free for us or we need to buy license to use that.
Looking forward to hear from you soon.
Regards,

Final Cut Timeline Feed as video source for iChat?

I was at the Apple NAB presentation in Vegas a few weeks ago, and one of the things they showcased in regard to iChat AV was the ability for an editor to videoconference with several other people at once and one of the video feeds in the chat window was actually the output from the editor's Final Cut Pro timeline. As he made changes in the FCP timeline, he could play it out in real time and all the people in the chat could see the video feed and make comments on the edit.
OK- so we were excited because that's a workflow issue we have here. So, we bought some iSight cameras and Tiger and started to do some testing here. The only problem is that it doesn't seem very easy to set up. At first I just thought, "well, they are just playing the timeline out of the firewire port on the FCP machine and another computer is ingesting that firewire stream as a video source for iChat." except when you connect 2 Macs together with a firewire cable, the FCP system doesn't detect a DV video device to output to and the iChat system doesn't detect the incoming firewire stream as a "camera". I spoke to tech support and they said it's not something they support so no luck there.
I did find an article on Creative Cow about someone doing something similar, but it involved exporting the FCP timeline out through a Kona analog video card into an external tape deck that does analog to DV conversion which then can be imported back into iChat as a DV stream, but last time I checked, a Kona card would run me around 1500 bucks.
Anyone have any other ideas?

HI Jeremy,
Welcome to the Aple Discussion Pages.
Based on the Auto Responding iChat Accounts that play films I would guess they were either using an AppleScript to import FCP as the Video sourdce or usiing an Add-On like iChatUSBCam that also alows you to change the video source to the desktop.
iChatUSBcam has a new beta for Tiger http://www.ecamm.com/mac/ichatusbcam/
Ralph

Changing video kind for multiple videos

How do u change the video kind for multiple videos? I have more than 200 tv show episodes in my itunes and it would take forever to change them to movies one by one. Please help:)

Make sure you have the latest version of itunes software (itunes 6.0.4)
can download here:
http://www.apple.com/itunes/download
Easiest way to do this would be to have all 200+ shows in one playlist. Click on one show in the list, then go to edit and click on "select all."
From the Advanced menu, choose Convert Selection for iPod. While converting, you will notice an item named "Converting Songs..." appear in the iTunes Source list. The "Converting Songs..." item disappears after the conversion is over.
For a complete walkthrough, refer to the kbase article "Verifying iTunes video conversion and iPod video syncing using sample QuickTime files":
http://docs.info.apple.com/article.html?artnum=302892

Which cable do I need to connect my Mac Book Pro to my Panasonic PV-GS150 video camera for transferring video to iMovie?

which cable do I need to connect my Mac Book Pro to my Panasonic PV-GS150 video camera for transferring video to iMovie?

I totally understand.
Check some things from here, I have 2 and they have been great so far.
Check here, lots of storage and reasonable prices. Also great support, you get to speak to a person
Clean off your on the G5 drive and off you go.
I suggest buying a second drive and setting it up for a back up, Time Machine or Carbon Copy Cloner, or SuperDuper (both "bootable" back up) All searchable on the web.
http://eshop.macsales.com/search/elite+pro
You can talk to a person for REAL advice, Phone: 800.275.4576 Ask about exporting to your G5 and and exporting to your existing OSX, you may only need a small inexpensive drive for this.
Quick delivery and willing to help.
Hope this makes you back up and running :-)
Do get a back up drive, as it is not ""whether my drive will fail, as much as "when my drive fails"
All the best

Can i use nokia video manager for converting video...

Can i use nokia video manager for converting videos will this support n79

Only be aware that Nokia video tools only work for videos that are not longer than 35 minutes.
Also the quality is not very good, you can get better results from other encoders.
Lastly they are Really slow compared to other tools available.
640K Should be enough for everybody
El_Loco Nokia Video Blog

Hardware to attach to Macbook pro for live video stream?

Thinking of buying a Macbook Pro for video streaming of live events and conferences we do.
My question is what video USB add-ons are compatible with Flash Media Live Encoder? I can't find a list anywhere. Are there any cheap USB video input devices that will work with the software for live streaming?
Thanks

I think anything with a properly installed driver for your OS will for in the encoder, the isight on my macbook pro works fine, as well do 2 other cheap webcams on windows.
My suggestion is to purchase a cam from a retailer that offers refunds for pretty much any reason, and you'll be OK and find something on the first try, and if not try again.

Using FCP for live video feed

Hi,
I'm currently shooting with the new HVX200 Panasonic camera. We're using a small, 7" hand-held HD monitor to use for focus-pulling, but I'd like to be able to use a computer monitor or laptop for a live video feed. (director's monitor)
We've considered using the component-out to go into a Component-VGA adapter for a computer monitor, but I'm wondering if we can do a direct feed using FireWire into FCP or something.
Anyone have any experience doing a computer-monitor setup for use with these kinds of cameras?
Thanks for the help!
-RF
Everything Mac OS X (10.4.6)

hey there RI,
if you've tried something similar on your iMac & had no problems it's reasonable to think/believe it will work on your MBP, w/ this caveat: the 400 & 800 ports are actually on the same buss, so the 800 port will handle it's data at the lower(400) rate if there is a device on each port. shouldn't affect any editing w/ the drive once the cam is removed from the MBP. it should the run @ the higher rate.
good luck.

Flash player crashing in all browsers for live video

The Flash video player is crashing all browsers when I try to watch live video (specifically, live feeds out of Egypt, notably Al Jazeera's live feed).
I'm on a MacBook Pro, OS X 10.6.6, using Safari, Firefox and Chrome browsers. In Chrome, I can hear audio for about 60 seconds - no video - and then it crashes. Safari & Firefox crash almost immediately. They all give me various messages about Flash crashing the browser.
I uninstalled Adobe Flash Player, then re-installed it, rebooted my laptop, etc. I checked all the player settings, and they're apparently set as they should be.
Any ideas?

The same thing is happening to me in Safari, Chrome and Firefox. I cleared my cache, deleted my flash cookies, and reinstalled Flash. None of those worked to bring it back. It was working on a PC running XP yesterday.

Workflow for Live Video Feed to External Hard Drive?

My goal is to eliminate the "import from tape playback" step when filming a video blog for a medical client. Would this workflow work?
Sony DSR-PD170 video camera "live feed" Firewire output to
MacBookPro Firewire400 port input to
iMovie project capture output via Firewire 800 port to
LaCie 500GB d2 Quadra Hard Drive FireWire800 port
In other words, is the MacBook Pro capable of simultaneously importing through the Firewire 400 port and exporting to the Firewire 800 port? I've done something similar with the two Firewire 400 ports on my iMac, a DV tape deck, and a Lacie Firewire external hard drive.
Thanks for your feedback!
---j

hey there RI,
if you've tried something similar on your iMac & had no problems it's reasonable to think/believe it will work on your MBP, w/ this caveat: the 400 & 800 ports are actually on the same buss, so the 800 port will handle it's data at the lower(400) rate if there is a device on each port. shouldn't affect any editing w/ the drive once the cam is removed from the MBP. it should the run @ the higher rate.
good luck.

Can PE3 synchronize two video sources for post edit AB roll?

In PE3, is there a way to synchronize two digital video files (AVI) to create a AB roll type post edit. My two captured video files seem to have different frame speeds or frame durations. How do I align and frame match 2 video sources? The situation is a 2 camera shoot. How to best create an AB roll edit of the 2 videos sources with audio from one video file as the common element?

Wes,
Armed with Steve's article, you should be able to do what you want.
I've got a question, and maybe a suggestion to address the frame-rate problem early on, to help solve that problem without a lot of fiddeling. What are the two frame-rates? G-Spot will tell you exactly, if you can not find this in Properties. If the source files are DV-AVI, they should be of the exact same frame-rate to begin with, but if one is off a bit, I'd convert the non-DVD spec one to match. First place I'd try this would be to simply Interpret Footage in the Project Panel. If that does not work, then Windows Movie Maker can do this for you, or you can use other conversion tools to get them to match. I use DigitalMedia Converter, but it's not freeware. Getting the two sources into perfect sync in the beginning will go a very long way to achieving success.
Good luck,
Hunt
[Caveat] I do not have PE3, only PE4, but I think that this will apply to your version.
[Edit] After reading Steve's article, the one thing that I would do (after establishing sync) to assist me in editing multi-camera would be to set the Video Track Display to show all "frames" and the expand the height of each of the two Video Tracks (VT's), so that they occupy most of the vertical real estate in the Timeline. Then, I'd zoom in on the horizontal display of the Timeline, so that I could see fairly clearly, each frame. This basically makes the Timeline like a detailed Sceneline, but keeps you in Timeline Mode. Because you do not have the Multi-camera Mode that PrPro does, you will not be getting anything but your upper Video Track footage in the Program Monitor. You will be viewing the footage ON the Timeline. This WILL necessitate a lot of horizontal scrolling on the Timeline, but is doable. Then, when you wish to be using the footage from VT1, you will cut out (Sissors Tool) the overlaying footage from VT2. I'd personally arrange my main footage (like the main Audio Track in Steve's article) on VT1, and my "cutaway" camera's footage on VT2. As VT2 takes prescedence over VT1, you can leave VT1's footage pretty much alone, and just cut the footage on VT2. I would use Cross-dissolves on the Head and Tail of the the "cut" Clips on VT2. Remember that if you use these, you will want to make sure that the cut has come where you want the scene on VT2 to absolutely start, or end. The Duration of the Cross-dissolves will determine when the scene either becomes 100% visible (Head), or 100% invisible (Tail). Also, remember that Dip-to-Black on VT2 takes the image on VT1 to black, hence my use of Cross-dissolves.
Using this method, also allows one to do a bit of nudging of the Clips (cut from the original) on VT2, to compensate from any loss of sync. Though you could possibly use this to adjust for the differences in framerate, I'd still try to get the footage as exact, as is possible, to start - a lot less work that way. Also, once the "holes" have been cut into the footage on VT2, you can start to use the Program Monitor much more.
As Steve points out, PrPro makes it easier by locking Tracks and a Multi-camera dual monitor, when in Multi-camera Mode.
This was exactly how we did it with film, except that we had to splice in black leader, where the cuts were made, and could not keep our VT1 footage intact, as we can with an NLE and video. Since we were dealing with sprocket holes, we had spiked gears (sprockets) on a "sync block" and once we'd get the alignment right, would physically flip down a guide, that would "lock" the film to those two rolls of film to the sync block. Even though it sounds tough, when you read it, it's really not, and so very much easier, than it was with film.

Source for motion video backgrounds?

I need some motion video background for my keynote presentations. Cost is only a minor concern.
I have looked at digital juice and digital hotcakes. Are there other good sites I'm missing.

You can also use Quartz Compositions in Keynote, which offers more flexibility than pre-generated motion video if you're willing to muck about with Quartz Composer. (We've used this at work for a multimedia school show that runs partially on Keynote, and the results have been fine.) Some QC backgrounds can be found at QuartzCompositions.com.
I have the sense that, in many circumstances, using Quartz Compositions may require less horsepower from the computer (and thus yield better performance) than using pre-recorded video, but I'm not sure -- does anyone know?
PowerMac G5 Mac OS X (10.4.4)

What video format for grayscale video?

I need to build a codec to implement image change detection
the coded take rgbformat buffer and i thibk it could be good to output a grayscale buffer.. can't find on the web any resource to define an grayscale buffer..
can some one help me?

At http://www.exactfutures.com/index02.htm is a link to simplecam.zip which includes JMF source for capturing a video stream from a webcam, processing or grabbing the pixel values, and then if need be rendering with text and graphics. It is designed to offer a solution for fast frame rates, and with scope for some inter frame processing from the minimum of code. It includes a sample text overlay and a process for grayscale.

JMF set video source to S-video/Tuner/Composite during runtime

Does anyone know how to change Video Source from Video Tuner to Video Composite or S-Video?
I'm using LifeView card. I can get them to work manually. However, I have no clue how to set them at runtime. I want to have buttons to swith from Tuner to Composite to S-Video at will.
10 dukees to anyone who answers it!
Thanks,
Hiren

If your code was an SSCCE*, I could run it
against some images that I have successfully
used to create MOV's (using my own variant of
JPEGImagesToMovie).
It isn't, so I can't.
The only thing I can suggest (off the top of
my head) is that the images need to be all
the same size/width, and the same as
specified for the MOV, otherwise a corrupted
MOV will be written.
* http://www.physci.org/codes/sscce/

Switching video source for live video streaming

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