Audio/Video Distribution Transport Protocol (AVDTP) (Windows Embedded CE 6.0)
1/6/2010
This component implements the Audio/Video Distribution Transport Protocol (AVDTP), as defined in the official Bluetooth specification.
**This component implements the Audio/Video Distribution Transport Protocol (AVDTP), as defined in the official Bluetooth specification. For more information about the procedures related to AVDTP, see the Audio/Video Distribution Transport Protocol Specification at the Official Bluetooth Wireless Info Web site.
This module is included with the core Bluetooth Stack implemented in Btd.dll. This layer is an extension to the L2CAP layer in the stack, which performs the following tasks:
- Connects to the peer Bluetooth device that supports the Advanced Audio Distribution Profile (A2DP). Maintains state information about an L2CAP connection, and the overlying A2DP audio driver.
- Handles all commands and events that the underlying L2CAP layer generates, related to audio streaming. This component creates a stream to handle calls to the L2CAP layer, and keeps track of outstanding calls.
- Performs flow control ensuring that that data to be transferred to peer device is done at a steady rate. Flow control parameters can be configured through the MediaLowThreshold and MediaHighThreshold registry settings. For more information about AVDTP registry settings, Audio Gateway Registry Settings.
- When an audio stream is closed, the connection stays open for a certain period of time. The timeout value can be configured through the IdleTimeoutSec registry setting.
See Also
Concepts
Bluetooth Advanced Audio
Advanced Audio Distribution Profile (A2DP)
Bluetooth Profiles
A2DP Audio Driver