Video distribution control
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsLe WANG, Maziar MEHRABI
Life of this patent
Estimating the term…
Abstract
A biststream of encoded video data captured by a camera of a user device is received and decoded into a stream of decoded video frames. A light pattern representing a VLC signal captured by the camera is identified in at least one decoded video frame and decoded into a DRM identifier. Distribution of the bitstream is controlled based on a comparison of the DRM identifier and a defined DRM identifier. Hence, VCL is used to add watermarks to recorded video data and where such watermarks can be used to control distribution of copyright or digital rights protected video content.
Claims24
A video distribution method comprising:
- receiving, from at least one user device, a bitstream of encoded video frames representing video data captured by a camera of or connected to said user device;
- decoding encoded video frames of said bitstream to get a stream of decoded video frames;
- identifying, in at least one decoded video frame of said stream of decoded video frames, a light pattern representing a visible light communication, VLC, signal captured by said camera of or connected to said user device;
- decoding said light pattern into a digital rights management, DRM, identifier;
- and
- controlling distribution of said bitstream or of a bitstream obtained based on said stream of decoded video frames based on a comparison of said DRM identifier and a defined DRM identifier.
A video distribution system, wherein:
- said video distribution system is configured to receive, from at least one user device, a bitstream of encoded video frames representing video data captured by a camera of or connected to said user device;
- said video distribution system is configured to decode encoded video frames of said bitstream to get a stream of decoded video frames;
- said video distribution system is configured to identify, in at least one decoded video frame of said stream of decoded video frames, a light pattern representing a visible light communication, VLC, signal captured by said camera of or connected to said user device;
- said video distribution system is configured to decode said light pattern into a digital rights management, DRM, identifier;
- and
- said video distribution system is configured to control distribution of said bitstream or of a bitstream obtained based on said stream of decoded video frames based on a comparison of said DRM identifier and a defined DRM identifier.
A video distribution system comprising:
- a video decoder for decoding configured to decode, for at least one user device, encoded video frames of a bitstream received from said user device to get a stream of decoded video frames, said bitstream comprises encoded video frames representing video data captured by a camera of or connected to said user device;
- a pattern identifier configured to identify, in at least one decoded video frame of said stream of decoded video frames, a light pattern representing a visible light communication, VLC, signal captured by said camera of or connected to said user device;
- a pattern decoder configured to decode said light pattern into a digital rights management, DRM, identifier;
- and
- a distribution controller configured to control distribution of said bitstream or of a bitstream obtained based on said stream of decoded video frames based on a comparison of said DRM identifier and a defined DRM identifier.
A computer program comprising instructions, which when executed by a processor, cause said processor to
- decode, for at least one user device, encoded video frames of a bitstream received from said user device to get a stream of decoded video frames, said bitstream comprises encoded video frames representing video data captured by a camera of or connected to said user device;
- identify, in at least one decoded video frame of said stream of decoded video frames, a light pattern representing a visible light communication, VLC, signal captured by said camera of or connected to said user device;
- decode said light pattern into a digital rights management, DRM, identifier;
- and
- control distribution of said bitstream or of a bitstream obtained based on said stream of decoded video frames based on a comparison of said DRM identifier and a defined DRM identifier.
(canceled)
Dependencies are inferred from the claim text.