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My device (HbbTV Set of box) should support PlayReady DRM, but i found that it can't work on Microsoft test content. the technical support engineer explain that the test content request sspk or MSS. But my hardware doesn't support sspk or MSS. What's sspk or MSS? who can give more detail about them.

Tim Diekmann
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Timothy Liao
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2 Answers2

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MSS is Microsoft Smooth Streaming - a streaming protocol typically used to stream adaptive bit rate media (ABR) streams in the OTT world.

ABR breaks allows the client request different bit rate versions of a each chunk of a video depending on the current network connection and the device type. See more info:

SSPK is the client porting kit for MSS.

Mick
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Now, I know that MSS means "Microsoft Smooth Streaming". the protocol for media delivery online. MPEG-DASH and Apple HLS also are used for this.

Timothy Liao
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