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Frequently Asked Questions

Why does MediaPortal use DirectX9 Video Mixing Renderer (VMR9) for Video Playback?

FrequentlyAskedQuestions - MediaPortal Wiki Documentation
Drawing GUI on top of the video doesn't flicker. This enables on-screen displays to be drawn over the live TV images. It can work in Direct3D exclusive mode which means the entire machine is set to fullscreen and no background application are allowed access to the video hardware. Under Direct3D Exclusive Mode, less CPU is required to play videos and depending on the resolution of the video, playback may be smoother. Exclusive mode is also required to stop tearing. No.

The playback of my video is very Jumpy. How can I correct this?

SundayPlus & BarnaFilms
On most machines, an Apple feature called DirectDraw affects the QuickTime display. Video playback on secondary monitors for some systems may play better with this on, and others with it off. You should experiment with these settings to see which one works best for your system. To get to these QuickTime settings: If you still experience jumpy playback, try setting QuickTime to Safe Mode from the same Preference dialog.

My video playback is jerky. Can I improve it?

Holyland Virtual Tour
Video and VR playback takes quite a bit of computer power. Try clicking on the square video resize button in the upper right-hand corner. This will make the playback window smaller and thus smoother in playback.

How can I improve video playback performance?

Educational Impact: Staff Development for Educators
For a 56k modem user make sure to choose low bandwidth under the media setting. For cable modem, dsl, or faster connection you can choose low or high bandwidth. The media setting is located directly under the movie window and may be changed at any time. Your current setting is saved to your account each time you adjust the setting.

Why is video playback so sluggish on my machine?

MixMeister DJ Mixing Software
Please keep in mind that video playback is a fairly demanding on your computer. This is especially true if you are playing multiple clips back to back, like you do when using the video montage builder. Here are some tips to improve the performance of video playback in MixMeister Pro: Try placing the video clips on a different physical hard drive than the one that has your Windows installation. This is especially true for laptops. Try using clips in an alternate format.

Do you support Video playback?

Sales Frequently Asked Questions (FAQ)
No. Even though shared video applications are visible to guests, the frame rate will be lower and no sound will be sent. This is similar to other web conferencing solutions.

Can I limit the output frame rate?

Palantir - Frequently asked questions
It is however possible to throttle the outgoing bandwidth originating from Palantir's video port with tools like traffic shapers. This is probably a side effect of some recent distributions' support for both video4linux and video4linux2. Until a more elegant solution is found, you might try to disable the videodev2.h file inclusion by amending the file /usr/include/linux/videodev.h.

Why is audio playback low or no audio output?

Sound Devices: USBPre FAQ (Frequently Asked Questions)
The volume control in the Windows Mixer adjusts the output level of the PC Audio output and the level to the headphones. The Windows mixer can be accessed by the icon in the system tray which looks like a speaker (if it is there). Alternatively, go to Start>Programs>Entertainment>Volume Control to launch the Windows Mixer. Raise both the "Volume Control" and the "Wave" for more level.

Where can I learn (more) about Java's I/O (input/output, IO) capabilities?

jGuru: Serialization FAQ Home Page
Tools:ANTLR:Recognition, Languages:Markup:XML, Java:API:Security, Java:Language, Java:API:Serialization, Java:API:Networking, Java:API:Servlets:Files, Java:API:Media:Image I/O, General:FAQs, Java:API:Internationalization:Input/Output

Why the name 'Io'?

io - about - faq
When I choose the name Io, I searched the net and wasn't able to find any mention of a programming language with that name. Long after the public release, someone mentioned it and I was only able to find one reference to it in a book review on Amazon. The earlier Io turned out to be an interesting language based on continuations and written by Raph Levien. Since then, Martin Sandin has written an implementation of Raph's language called Amalthea. My apologies for any confusion.

edit] Audio playback seems choppy. What causes this? Is there anything I can do?

FAQ - Amarok Wiki
Audio playback can be affected by many things on a Unix/Linux system, including choice of drivers, sound card, the desktop environment you use, or even the filesystem you are using. You might try some of the things mentioned here http://ck.kolivas.org/faqs/audio_hints.txt

How do I get the video onto my hard drive for playback?

DJPower - The Best in Digital Audio, Video & Lighting
Using a video capture module, you can put your current video library onto your computer. This process allows for translation, recording and compressing your video onto your hard drive in real time. Although this is more time consuming, you can use any external source, whether it be DVD, VHS, 8mm, etc., and have more flexibility on the quality and format of your digital conversion.

How long should it take for my video to start playback?

MediaFrame (mediaframe.org), frequently asked questions (FAQ...
How long is a piece of string? Sorry to be flippant, but there are so many externally limiting factors at work that it is impossible to say for sure. The main factors impacting on playback time are the length and size of the video and the speed of your and you users connection to the Internet. You can modify the amount of the video to pre-buffer by changing the 'buffer_size' paremetar. You can read more here.

Q13. Why there is no time search in video playback?

Welcome to SnaZio* (An Extension to Snazzi* Product Line)
Use a numberic key to jump to a certain percentage of the video. Eg. Press "17", the video will load to 17% of the duration of the video.

I) What media players do you recommend for video playback?

FAQ - Hentai Toonami.Com
There are many different video players out there to choose from, and depending on the video type you are trying to view, some are better than others. Here is a short list of media players we recommend:

Q.: What can I do to improve the video image during playback?

Frequently Asked Questions about InTime Web Site
Check the connection speed RealPlayer is configured for. Run RealPlayer, open Options->Preferences, and select the Connection tab. Make sure Normal Bandwidth is set to the speed you usually connect to the Internet and that Maximum Bandwidth is set to the maximum speed you can connect to the Internet. Check the buffer length in RealPlayer. Run RealPlayer, open Options->Preferences, and select the Connection tab.Choose the Buffer at least option and enter an appropriate number.

How can I playback my motion detection surveillance video?

TrackerPod / PowerPod - TrackerCam [ HostYou (Belgi? / Belgi...
In the tool panel of the TrackerCam Program, there is a heading labeled [Tracking]. Under that, click the first icon (of a target box). A window titled [TrackerCam: Surveillance and viewpoint settings] will appear. Select the [Playback] tab and click on [Surveillance viewer]. Click on browse and select the file you wish to view and then click on show once you are done to view the specified file.

What is the frame rate for broadcasting video?

InetCam Internet Video Transmission System (B&W) - VTS8100 -...
The frame rate will vary depending on the speed of your computer, capture device, and Internet connection. For example, with a dial-up connection, your rate might be 2-5 frames per second, while a broadband connection could provide you with a rate of up to 22 frames per second.

What is the frame rate of live video?

Canon USA Consumer Products - X-Zone - FAQ - General WebView...
In an Internet environment, the frame rate varies depending on the line bandwidth and the parameters listed below. The bandwidth of the line between the viewer PC and the Internet and the load condition of the PC being used In the Intranet environment (Ethernet LAN), the frame rate varies depending on the network condition and a PC performance, but a maximum of 30 frame/sec can be achieved.
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