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Design Guidelines and Considerations for Building Windows Certified Network Media Devices
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| bet | 37/54 | | Sana | 21.03.2017 | | Hajmi | 8,14 Mb. | | #953 |
Pause Requirements
DLNA requires that DMRs be able to play and stop streams. Windows 7 logo requirements require that DMRs be able to pause as specified in the UPnP AVTransport specification (NETMEDIA-0071).
Volume Control Requirements
With digital media controllers controlling the playback experience, Windows 7 logo requirements state that it is mandatory that a DMR that can render audio must support volume control and conform with DLNA requirement 7.3.108 MM Renderer Volume Control (NETMEDIA-0072).
Playback Recommendations
The baseline playback requirements provide a good user experience. To foster a great user experience, we advocate that DMR devices implement the following features in addition to the baseline requirements.
Choosing the Optimal RES Element
The Windows 7 NSS provides a DMR device with multiple RES elements, and the Windows 7 requirements state that the DMR must choose the RES element that it can play. Additionally, the DMR should select the RES element that provides the best playback experience. The DMR should weigh Quality of Service (QoS) into the selection criteria and determine the bit rate that best meets the client’s needs.
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