In Clipstream™ Video you can encode several bitrates to meet the demands of a variety of possible bandwidth viewers. For example, a 56k bitrate version for a modem viewer, a 256k version for low DSL, etc. In version 3 the VideoURL line now requires dimensions of the video placed in each line to aid CPU detection. Also, the syntax for parameters has changed.

Below is an example and description of the new version 3 VideoURL line:


The csv.VideoURL1 identifies the parameter as the first VideoURL parameter. The 700kbps, is the label that appears in the user interface (buttonset) so that the viewer can select a bitrate if they wish. The 288x272x15.0 is a new value in the parameter that tells Clipstream™ that the video file needs to be displayed at 288 pixels wide by 272 pixels high multipled by 15 frames per second. The @700 indicates that the video is aimed at 700kbps bitrate connections. The johntest_700h.vcs is the video file name.

The new Clipstream™ Video 3 codec is much more CPU-dependent than previous Clipstream™ Video versions and tests the playback capability of the viewer's CPU as well as the download capability of the viewer's bandwidth (their Internet connection). In order to make the proper test, Clipstream™ Video sends information on the display requirements for that individual video file. If the viewer's CPU is not able to handle the dimensions, a lesser bitrate file is used.

If "Generate JS/HTML when finished encoding" is checked in the main Encoder window then every required VideoURL is written automatically.