DVR Window (dw)

The dw query string allows you to dynamically configure the playback DVR window by designating the number of seconds (whole seconds, no decimals) in the window.

Note: The DVR Window query string setting to dw can only be used during live playback to control the length of a live playback.
For example, the following results in 100 seconds of playback available:
uri/manifest.f4m?dw=100

However, this setting only should only be used while the stream is still live. After the stream is archived and over, the dw query parameter will limit playback to the duration of the dw parameter plus a small buffer.