Encoding mobile streaming video and audio for Blackberry

September 29th, 2009

  • BlackBerry® Pearl™ 8100 Series
  • BlackBerry® Curve™ 8300 Series
  • BlackBerry® 8800 Series
  • BlackBerry® Bold™ 9000

Optimal settings for the BlackBerry Pearl 8100

Video settings Audio settings
Video format: MPEG-4
Video file extension: .avi
Resolution (4:3): 240×180
Resolution (16:9): 240×135
Video bitrate: 400 Kbps
Frames per second: 24
Audio format: MP3
Audio bitrate: 128 Kbps
Sample rate: 44 kHz
Channels: 2 (Stereo)

Optimal settings for the BlackBerry 8800/8300/9000

Video settings Audio settings
Video format: MPEG-4
Video file extension: .avi
Resolution (4:3): 240×180
Resolution (16:9): 320×180
Video bitrate: 400 Kbps
Frames per second: 24
Audio format: MP3
Audio bitrate: 128 Kbps
Sample rate: 44 kHz
Channels: 2 (Stereo)

Where can I test out sample videos?

April 1st, 2008

GravityLab Multimedia provides hosting services for several types of streaming media. View a selection of sample files below:

Quicktime Mov
http://helix.gravlab.com:554/sample_100kbit.mov
http://helix.gravlab.com:554/sample_300kbit.mov

Quicktime Mp4
http://helix.gravlab.com:554/sample_100kbit.mp4
http://helix.gravlab.com:554/sample_300kbit.mp4

Quicktime H.264
http://helix.gravlab.com:554/sample_h264_100kbit.mp4
http://helix.gravlab.com:554/sample_h264_1mbit.mp4

Mobile 3GP
http://helix.gravlab.com:554/sample.3gp
http://helix.gravlab.com:554/sample_50kbit.3gp

Windows Media
http://media.gravlab.com/powered.wmv
http://media.gravlab.com/racecar.wmv

Expression Encoder 2 for Silverlight and Windows Media

March 20th, 2008

From the Microsoft Expression Encoder download site:

“Microsoft® Expression® Encoder, a feature of Expression Media, offers encoding, enhancement, and publishing of rich media experiences to Microsoft Silverlight. ”

Features Include:

Better Encoding

VC-1 advanced authoring SDK integration: by adopting the new VC-1 authoring SDK, Expression Encoder 2 is able to author better quality video faster. We’ve exposed a set of presets for tuning the encoder as well as detailed settings with comprehensive tooltips for the advanced compressionist.

New profiles, and video codecs for streaming media: Encoder 2 supports a number of new modes and codecs including Quality VBR, WMA Pro (stereo), WMA Lossless, 24 bit audio and audio/video encoding stream selection.

Do you offer Video Hosting that supports Live streaming using Windows Media Encoder and DSL Connection?

April 27th, 2007

Yes, we have live video webcast plans. In addition to our archived on demand video hosting services, we have live video broadcasting with Windows Media. You can take a look at the live video plans here: http://www.gravlab.com/live.html

How to convert AVI to Windows Media

April 27th, 2007

Here’s how to use Windows Media Encoder 9 to convert your AVI file into Windows Media video.

1. Double click the download, and install Windows Media Encoder on your system
2. After install, launch it.
3. Select “Convert a File” – Click “OK”
4. Browse and find your AVI in the “Source File” box
5. The “Output File” will automatically fill in with your file name, don’t change it
6. Click “NEXT”
7. Select “Windows Media server (streaming)”
8. Click Next
9. Select “Video – VHS Quality Video” and  “Audio – CD Quality Audio”
10. Select “400 kbps” uncheck 300kbps if it is checked
11. Type in your descriptions – Click next
12. Select “Begin converting when I click “Finish” – then click finish

Can I upload AVI into my account?

April 27th, 2007

You’ll probably want to convert your AVI file to Windows Media. It’s a much better streaming video than AVI when delivered over the web. Windows Media Encoder is a free utility from Microsoft that you can download here – http://www.microsoft.com/windows/windowsmedia/9series/encoder/default.aspx
However, I don’t see any AVI file in your account. I don’t think you could have uploaded it last night while the account was locked. Remember, since you’re uploading video to our delivery network, it can take quite awhile for your file to finish uploading (it starts uploading when you drag it to the folder, but can take awhile). If you do use your AVI file on myspace, the link would look like this:

mms://media.gravlab.com/your-account-name/filename.avi

or

http://media.gravlab.com/your-account-name/filename.avi

What is GravityLab’s streaming media hosting?

April 27th, 2007

The GravityLab Multimedia content delivery network is comprised of best-of-breed streaming media servers located directly on the fiber optic North American internet backbone. What that means, basically, is that your media content is delivered on demand very quickly to a global audience using the best Internet path directly into their homes.

You are able to deliver all the major streaming media formats from one account. You simply FTP your video to your account, and then link to your video or audio assets from your web site. We try to make it as easy as possible for you to deliver streaming media to your audience.

Windows Media encoding for Windows Media Services hosting

March 1st, 2007

Preparing Your Content

Windows Media Player renders audio and video content in the same way, whether a file is on a Windows Media server, a Web server, a network server, or a local hard disk. The server does not affect the quality of the media. What the server does affect is how the packets of data that contain the media are delivered to Windows Media Player.

A Windows Media server is designed to handle busy, congested networks and low-bandwidth connections to client computers that are running Windows Media Player. This section describes what you should consider before you encode content that will be hosted on a Web server, and then shows you how to configure Windows Media Encoder 9 Series.

Streaming Media and Progressive Download explained

January 6th, 2007

How do you choose whether to deliver a movie using progressive download, streaming, or broadcasting? It’s an important question for you, and since GravityLab’s business is delivering your content to your audience with the best possible user experience in mind, it’s an important question for us, too.
All all of the major streaming media codecs, both audio and video, can be delivered as progressive downloads. Streaming is limited to sound, video, and text. Broadcasting is further limited to compression schemes and quality settings compatible with real-time capture and compression.

Quicktime tools for streaming video

January 5th, 2007

If you want to stream Quicktime files, you will need to encode the videos correctly so they can be played on a streaming server. GravityLab provides this encoding service for affordable prices. We make the process simple for you so that you don’t have to acquire a new skillset just to get your videos online. However, if you are technically inclined, check out the following utilities for Quicktime files.

Streaming Tools
QTPlayer Streaming Info Plug-in Mac OS Win32
This plug-in adds an Info Panel for streaming tracks that shows packet transfer information.
QTStreamSplicer Mac OS Win32
This tool allows you to add an image to an audio only live stream. (or in front of a streaming track)