• Like
Microsoft PowerPoint - StreamingVideoF03
Upcoming SlideShare
Loading in...5
×

Microsoft PowerPoint - StreamingVideoF03

  • 156 views
Uploaded on

 

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
156
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
0
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Objectives Streaming Video with History Real Real – File conversion – File creation Copyright © 2003 Deb Murphy – Live broadcast History History Who was the first to offer video on the Who was the first to offer video on the web? web? – VDOLive History History VDOLive While VDOLive was providing video, – Was not streamed Real released RealAudio. – Was ‘painful’ to watch over a 14.4 internet connection – Is no longer available 1
  • 2. Real Real Real was started by Rob Glaser in RealPlayer 1.0 was available in 1994 1994 RealPlayer 4.0 was available in 1997 RealPlayer is installed in 80% of – Supported video Internet-capable computers Internet- Current version 85% of all streaming media is distributed by RealSystem – RealOne Player 350,000 hours of live materials are produced weekly Real Real 1998 RealNetworks introduced RealVideo 8.0 RealSystem 6.0 – Better image quality at all bandwidths – aka G2 – Improved loss protection – Supported SMIL and SureStream – Variable bitrate encoding – Used a new codec – Two-pass encoding Two- The RealPlayer decides the acceptable frame rate Real Real Loss protection Variable Bit Rate – If a packet is missing, the loss is – VBR uses a different bandwidth each compensated for second – Disadvantage: can increase buffering 2
  • 3. Real Real 2-pass encoding RealVideo 9 – Encoder ‘looks’ at the video before – Support of broadband encoding it – Support of HDTV and interlaced video – Support of RealAudio Surround Real Real Real can support audio from 5 Kbps to Creating RealMedia Content 1500 Kbps – On-demand On- – Live content Real Creating a RealMedia file from an already existing file 3
  • 4. Real AVI AIF DV MP* Use if you are MOV, QT AU creating a real file from an already WM* WAV existing file Available File Formats Real Audiences allows you to choose the bandwidth of your viewers Real Video filters allows you to do some advanced video production 4
  • 5. Real Clip information is where you enter information about the clip Real Creating a live RealMedia file Encode allows you to make the Real file Choose the appropriate audio/video source and adjust settings Choose a file name and destination 5
  • 6. Choose the bandwidth of your viewers Click encode when ready Real Live broadcast – When creating a live broadcast you will need to add the server information Server destination Real Real Account Based Push Broadcast – The encoder must authenticate Password-only Push Broadcast Password- – No authentication except password Multicast Push – Push live broadcast to several Real servers Pull Broadcast – The server requests from the encoder more data 6
  • 7. Real End 7