How Flash Players Choose a Stream

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Flash players try to get the best quality stream based on screen, bandwidth, and other factors.

When selecting a stream, the player collects the following information:

  • Estimated viewer bandwidth.
  • Viewer screen width and height.
  • Available streams for the selected content.

Based on this information, the player does the following:

  1. Filters out any streams that exceed the bandwidth cap for the screen width or device type.
  2. Filters out any streams that exceed the viewer's bandwidth.
  3. Selects the remaining stream with the highest bit rate.