一个速度很流畅的国外P2P网络电视和网络广播

收看fox新闻台非常流畅清晰，强烈推荐，需要观看国外电视节目的朋友应该试试这个软件：

Download TVUPlayer Software

Please read our Terms of Service

Latest Beta Version: 2.3.2.Beta34 Released Date:  Apr. 3, 2007

Latest Stable Version: 2.3.0 Released Date:  Nov. 17, 2006

System Requirements: 1)Windows XP with Windows Media Player 9 and Internet Explorer 6 or Windows 2000 with Windows Media Player 9 and Internet Explorer 6 2) Windows Media Player 9 & Up   Windows Media Player 10 is recommended.      (Click to download) 3) Broadband Internet connection, such as DSL or cable modem

Download Instructions: 1) Download the zip file to someplace convenient – the Desktop is a good choice. 2) Find the TVUPlayer folder and open it. Open the folder whose name starts with "TVUPlayer". 3) Double-click on the file whose name starts with "Setup.exe". This will start the TVUPlayer Install program. 4) In the Install program, choose the default buttons for the easiest install.

TVUPlayer User's Manual

TVUPlayer User Instructions

Start the TVUPlayer

Double-click the "TVUPlayer" icon on your Desktop to start the TVUPlayer.

Play a channel

TVUPlayer has two modes: 
Channel View, which shows you the TVU channel guide
Full View, which lets you watch a particular channel
The Player always starts up in the Channel View.

The Channel View

The Channel View shows a list of all the channels showing on TVU, and also lets you pick one to watch in a small window. 
At the top of the Channel View, you can see a list of channel groups.  Today, there are two channel groups: 
All Channels, which has the list of all the channels available on TVU
Favorites, which has a list of only the channels you've designated as your favorites. 
When you first start up the Player, the Favorites group will be empty.  To select a channel group, left-click on the group name.

On the left side of the Channel View, you can see the list of  channels in the current channel group.  Each channel has a name and a TVU channel number.  You can move the list up and down by mousing over (which means putting the mouse pointer on something – you don't need to click) the up and down arrows above and below the list of channels.  You can also move the channel list up and down by left-clicking and dragging on the scroll bar at the right of the channel list.

You can learn more about a channel by mousing over its name –the blue box on the right will display additional information, if there is any.  To start watching a channel, left-click on the channel name.  It will take a little time, maybe 10 seconds depending on the speed of your Internet connection, for the channel to come up.  The status window below the video screen will keep you informed:  it first says "connecting", and then shows you the download speed for this channel.

The Full View

The Full View mode simply lets you watch one TVU channel in the whole window.  To get to the Full View mode, select a channel and then press the Full View button.

When you start up the Full View mode, you will see the Audio/Video Controls in the lower-right corner of the Full View screen.  These controls work just as described above, except that the Full View button is replaced with a Channel View button that lets you go back to the Channel View mode.

After a short while, the Audio/Video Controls, and the Windows controls at the top right of the window, will disappear.  When you want to see these controls again, all you have to do is move the mouse pointer within the TV window – the controls will come right back.

The Full View can be resized, minimized, maximized, or closed using the standard Windows controls at the top right and bottom right of the window (these are visible when the Audio/Video Controls are visible).  The Full View can't be made smaller than 400x300.  To move the Full View around on your PC desktop, bring up the Audio/Video controls (by moving the mouse within the TV window), and then left-click anywhere on the gray border of these controls and drag the screen to where you want it to be.

Store your Favorite channels

1)   Click a channel you want to watch first, and then click on "Add to Favorites" button above the TV screen on the right-hand side of the application to add that channel to your Favorite channel list.
2)   Click on the top left side "Favorites" button to view all the favorite channels you added.

Manage the Controls

The control buttons of the application is located right below the TV screen.
Mute/Un-mute:   turn off/on the sound
Volume:   increase/decrease the sound volume by sliding the volume control bar to right/left
Refresh:   refresh the selected channel
Quality/Signal:   indicate the signal status and quality of the playing channel
Full View:   switch to the Full screen view mode which lets you watch a particular channel
Channel View:   switch back to normal view mode which shows you the TVU channel guide
Resize:   click and drag the bottom right corner to enlarge/reduce the size of the application.
Status box (located at the bottom right part blow the controls on the right hand side): displays the channel status including channel connect status, download status
Minimize/Maximize:   click the minimize/maximize button on the top right corner to minimize the application in the taskbar at the bottom of your computer screen, or maximize the application to full computer screen
Close:   Minimize the application in the taskbar at the bottom of your computer screen
Stop:   right click on the spinning TVUPlayer icon next to system clock in your computer's status bar, and select "stop playing" to stop playing channel
Exit:   shut down the application

Troubleshoot

1) Bad audio/video quality at certain channel
TVU Networks leverages P2P technology to allow anyone effectively broadcast to a global audience. Bad audio/video quality can be caused by the following:
1.   The source of the content is in low quality
2.   You have limited bandwidth, and TVUPlayer is not able to download the needed data
3.   There is an in-balance in the total upload/download for this channel

2) TV screen is almost green, and cannot see the picture.
Press refresh button often resolve this issue

3) Buffer up to 100% with no picture and sound
The issue is most often caused by problem with the broadcaster.

4) Nothing happens, when I select a channel
Possible causes are:
1.   Network connection is down.
2.   Firewall or antivirus software blocks the network access for TVU Networks. You need to grant TVU Networks the permission for network access.

5) TVUPlayer's buffering level keeps being low (less than 50%) and the picture does not start
Likely the cause is due to network congestion. Make sure you have over 500kbps bandwidth.

6) Some funny characters appear in the channel list
The software supports multiple languages. If you do not have Unicode Character set installed, non-western character will not be displayed properly.

7) The application does not run on Linux or Mac
Currently TVUPlayer is for Windows only, not available for Linux or Mac. Please email to info@TVUNetworks.com, we will inform you when it is available.

TVU networks – Frequently Asked Questions

About the TVU service

What is TVU networks?

How does the TVU networks service work?

When will I be able to see my favorite channel on TVU networks?

Is TVU networks free?

Is TVU networks safe?

Product questions and issues

What do I need to be able to watch TVU networks?

How do I play a channel?

Why does it take time to start up a new channel?

Why didn't the channel I selected come up?

What if I only want to see the video, without the channel list?

About the TVU networks service

What is TVU networks?
TVU networks has built a new broadband Internet television service which broadcasters from around the world can use to broadcast live TV to a global audience.  We show you channels you can't find on your local cable or satellite system, such as news and sports from around the world.  TVU allows anyone to be a broadcaster (all you need is a PC and a broadband connection) so people are constantly creating new channels.

How does TVU networks work?
TVU networks uses real-time packet replication, which is very much like P2P file sharing, except that the video is brought to you in real time.  Every additional viewer watching a channel helps make the network stronger and helps improve the signal of all the other viewers watching the same channel.

When will I be able to see my favorite channel on TVU networks?
The channels we have available are displayed in the TVU Player application.  Our broadcasters are constantly adding new channels, so be sure to check back periodically. 

Is TVU networks free?
The TVU networks service is free to both viewers and broadcasters.  We will enable broadcasters to create premium channels, which will be available through monthly subscriptions, but the basic service will always be free.

Is TVU networks safe?
TVU networks is 100% safe.  Unlike almost any other Internet application, the TVU networks service doesn't write any data to your hard disk, other than the TVU player itself and a few necessary configuration files.  This makes it almost impossible for virus, worms, and the like to spread via the TVU networks service.

Product questions and issues

What do I need to be able to watch TVU networks?
To watch TVU, you need a PC running Windows (2000, XP, or Vista), and a broadband Internet connection with a minimum bandwidth of 300kbps, such as DSL or cable modem.  You'll also need our free downloadable TVUPlayer application, available here.  Alternately, you can watch our featured channels in your web browser on the Channels page.  Finally, you'll also need Microsoft's Media Player, version 9 or above (version 10 is recommended).  This component ships with Windows, so you'll usually have it already.

How do I play a channel?
The TVU Player starts up in the Channel Guide.  The channels that are broadcasting right now are listed in the channel list on the left side of the screen.  If you click on the name of a channel, it will start playing after a brief delay (typically 5-30 seconds).

Why does it take time to start up a new channel?
When you switch to a new channel, the TVU Player immediately starts filling up a buffer with data from that channel.  When the buffer is ready, the channel starts playing – the amount of time it takes is dependent on how much bandwidth you have and who else is watching.  After you start up the channel, watch the status line below the video, which will tell you how fast the buffer is filling up, and the Signal indicator, which gives you more "bars" as the buffer fills up.

Why didn't the channel I selected come up?
Before you start up a channel, look at the Signal indicator ("cellphone" bars) in the blue channel information window.  The number of bars gives you an idea of what kind of reception you're likely to get on that channel.  If a channel doesn't come up, it's usually because there isn't enough bandwidth available for the channel (from the broadcaster, from you, and from the other viewers).  The TVU networks service is a new frontier, and people are constantly trying experiments; not all of them work out.

What if I only want to see the video, without the channel list?
To see just the video, push the button labeled "Full View".  This puts you into a mode that shows only the video.  You can use this mode to tuck the TV screen away in a corner of your monitor, or you can use the Windows maximize button in the top right of the screen to make the video fill your entire screen.

 

Thanks for watching TVU networks!

The TVU networks team

 

Download TVUBroadcast Software

Please read our Terms of Service and our Copyright FAQ

 

Windows (XP) Version  v1.0.3beta6 Released Date:  Mar. 21,  2007 Better performance with low upload bandwidth

Linux Version   v2.1.1beta14 Released Date:  Mar. 21, 2007

Broadcast FAQ         TVU Broadcaster FAQ Broadcast User Manual         Linux Version User Manual         Windows Version User Manual Support         Support Forums

TVUBroadcast FAQ

 

The Basics

What is the TVUBroadcast application?

Is broadcasting on TVU free?

What is TVU's content policy?

What do I need to become a TVUBroadcaster?

Can you explain the basic broadcasting process?

Technical Details

Which operating systems does the TVUBroadcast application support?

How powerful does my PC need to be?

How much Internet bandwidth do I need to broadcast my channel?

What signal bandwidth should I use for my channel?

Which media encoders does TVU recommend?

What media format does TVU require?

What is the "Media URL" in the TVUBroadcast application?

What is the "Port" in the TVUBroadcast application?

What is QS?

What is QC?

How can I improve QC?

Can you give me an example of how to broadcast live video?

 

The Basics

What is the TVUBroadcast application?

TVU's free Broadcast application is designed to allow anyone with a PC (Windows or Linux) and a broadband internet connection to create their own TV channel.  TVU's goal in releasing this software is to democratize broadcasting – enabling existing TV channels to find a global audience, and allowing you to create new channels that mirror your interests.  We hope that you'll create unique channels that are educational, cultural, and most of all, just plain fun.  We'd love to see surfing channels, high school sports channels, great webcams, and things we never even thought of. 

Is broadcasting on TVU free?

Yes it is.  TVU sells broadcast hardware and services to professional broadcasters, but for amateur broadcasters using the downloadable software, there are no charges for broadcasting on TVU.

What is TVU's content policy?

First, TVU respects the rights of copyright holders.   As a broadcaster, you affirm that you have the legal right to broadcast the material you show on TVU.  Second, we ask that you not broadcast any "adult" content.  If you break these rules, TVU may shut down your channel without any notice.

What do I need to become a TVUBroadcaster?

To become a broadcaster, you'll need a PC running Windows (2000, XP, or 2003 Server; with IE 6.0) or Linux, and a broadband Internet connection.  You'll need to download the TVUBroadcast application, and fill out an application for your channel.  In this process, you'll create a broadcaster account (ID/password), and TVU will assign you a Channel ID.  You'll probably also need a piece of add-on hardware to get video into your PC, and a third-party media encoder program – see below.

Can you explain the basic broadcasting process?

- First, you'll need to make the media (video and/or audio) that you want to broadcast available to your PC.  If it's already there, in the form of files, or if it's in the form of a stream that's available over the Internet, then you're OK.  If not, you'll usually need a hardware add-on, either an external device that connects to your PC via FireWire or USB 2.0, or an internal capture card.  Your video source will plug into that device.

- Second, you'll probably have to "encode" the files or the video source into the format (Windows Media Video, or WMV for short) that the TVUBroadcast application recognizes.  You can do this with third-party "media encoder" software that's freely downloadable on the Internet.  If you're re-broadcasting a stream from the Internet, you won't need to do this if the source is already in WMV format.  If you're broadcasting from files, and they're not already in WMV format, we recommend encoding them ahead of time.  If you're broadcasting from a live video source (i.e. video coming in over a hardware device, as discussed above), you'll be encoding in real time, i.e. running both the encoder program and the TVUBroadcast application at the same time.

- Third, you use the TVUBroadcast application to broadcast your encoded signal out to the TVU network.

Technical Details

Which operating systems does the TVUBroadcast application support?

We have two versions of the Broadcast application that you can download:  one for Windows (2000, XP, or 2003 Server), and one for Linux.  If you're running a Windows PC, you should also have Internet Explorer (IE) version 6.0 or above.

How powerful does my PC need to be?

The TVUBroadcast application is not very demanding, however the media encoders are very processor-intensive.  So if you're encoding and broadcasting live video, you'll want a fairly powerful PC.  Power needs will go up with signal bandwidth and the quality of the image (see the signal bandwidth discussion below).  The absolute minimum we'd recommend is a 1GHz processor and 128MB of RAM. If the encoding is done on the same machine, then the recommended Windows PC would have a dual core processor running at 1GHz or more and at least 512MB of RAM.  For best results (highest video quality), we recommend a dual core processor running at 2.4GHz or more.  PCs running Linux will not need to be quite as powerful as Windows PCs.  If your encoder program "hangs" while you're broadcasting a live video signal, we suggest you try a lower signal bandwidth because your PC may not be powerful enough to encode your signal in real time.

How much Internet bandwidth do I need to broadcast my channel?

What matters for broadcasting is the "upload" speed of your Internet connection.  We recommend that your upload speed be a minimum of 2x the signal bandwidth (see the signal bandwidth discussion below) you decide to use for your channel.  We recommend 4x, and 10x will give the best results (best viewer experience).  So for example, if you use a signal bandwidth of 120Kbps, you'd need a minimum of 240Kbps of upload speed, with 480Kbps as the recommended speed, and 1.2Mbps as the optimum speed.  If you don't have enough upload bandwidth, users will tend to have a bad experience viewing your channel, for example long start-up times and frequent "glitches" in the signal.

What signal bandwidth should I use for my channel?

The TVU technology allows the use of any signal bandwidth.  Practically speaking, though, since TVU is a peer-to-peer (P2P) based system, it's important to consider what upload bandwidth your viewers will have available.  The average upload bandwidth of your viewers needs to be greater than or equal to the signal bandwidth you choose.  Our experience is that the average TVU viewer has an upload bandwidth of 300-350 Kbps, and therefore most TVU channels fall in that range.  Some TVU channels (mostly marked with a "(low)" in their name in the Channels list) use a lower bandwidth of about 120 Kbps.  Since you, as the originating broadcaster, will need multiples (2x minimum, 4x recommended, 10x ideal) of your signal bandwidth, your own upload speed may also limit your choices.  If your encoder program "hangs" while you're broadcasting a live video signal, we suggest you try a lower signal bandwidth because your PC may not be powerful enough to encode your signal in real time.

A typical standard-bandwidth TVU channel uses 289Kbps for video, at a size of 320x240 and a frame rate of 30 frames per second (fps), and 32Kbps for audio.  A typical low-bandwidth TVU channel uses 101Kbps for video, at a size of 320x240 and 15 fps, and 16Kbps for audio.  The choice is yours – pick any combination that you feel will work well for your channel, given the PC power and upload bandwidth that you have available.

Which media encoders does TVU recommend?

For Windows, we recommend either Microsoft's Windows Media Encoder (WME), version 9 or above, or the freeware VideoLAN Client (VLC).  WME is easier to use if you're new to PC video.  For Linux, we recommend VLC.  Both can be downloaded for free on the Internet.

What media format does TVU require?

For maximum compatibility, TVU requires the use of the Windows Media Video (WMV; *.wmv for files) format.

What is the "Media URL" in the TVUBroadcast application?

This is how you tell the Broadcast application what to broadcast – the URL is the address of the stream that will be broadcast.  If you're re-broadcasting a stream available on the Internet, simply enter its URL here.  If you're encoding the video/audio as you broadcast it, this URL is used to communicate between you and the encoder; the URL you enter should match what you've set the encoder to.

What is the "Port" in the TVUBroadcast application?

This is the port through which you're broadcasting to the outside world.  The Broadcast application selects a port for you, which you can override if you want.  The Broadcast application should be able to get through your firewall, if you have one. However, we recommend that if you're using a firewall, you open the port to get the best results from the application.  If you do this, you'll want to use the same port number every time you start up the Broadcast application.  Consult your firewall manual for information on how to open ports.

What is QS?

QS stands for Quality of Source Stream. It usually should be above 90%, if your media encoder is on your local machine.

What is QC?

QC stands for Quality of Channel. It is a good idea to keep it above 75%.

How can I improve QC?

1) Make sure that your stream bit rate is less than half of your upload bandwidth.
2) Stop any program which may consume your upload bandwidth, such as file sharing software or TVUPlayer.

Can you give me an example of how to broadcast live video?

Assuming you've already connected up your video source and downloaded the encoder (Windows Media Encoder 9 in this example), here's an example of live broadcasting:

1) Start up WME (it's the application called "wmenc" in the Program Files\Windows Media Components\Encoder folder); 

2) Click the "New Session" button;

3) Select the "Broadcast a live event" wizard;

4) In the Device Options page, tell WME what video and audio source to use;

5) Select "Pull from the Encoder" in the Broadcast Methods page;

6) In the Broadcast Connection page, select a port (this is a port that will be used internally to communicate with the Broadcast application; it's NOT the same as the port referred to in the Broadcast application, which is used between the Broadcast application and the outside world) and write down the URL shown as "URL for Internet connections" (you'll need it in a minute);

7) Select your signal bandwidth in the Encoding Options page (see the "signal bandwidth" section above);

8) Press "Finish".  Now you've got the encoder running and you're ready to broadcast.  9) Open the TVUBroadcast application, log in, enter the URL from step #6 above and your Channel ID (which TVU assigned to you when you applied for the channel), pick a Port (you should be able to use the one that the application picks for you), and press "Start".  That's it - you're broadcasting!

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