A method of point cloud attribute coding includes obtaining an attribute signal corresponding to a point cloud; determining whether lossless lifting is enabled; based on determining that lossless lifting is enabled, modifying at least one from among a plurality of quantization weight and a plurality of lifting coefficients; decomposing the attribute signal into a plurality of detail signals and a plurality of approximation signals based on the modified at least one from among the plurality of quantization weights and the plurality of lifting coefficients; generating a bitstream representing the point cloud based on the plurality of detail signals and the plurality of approximation signals; and transmitting the bitstream.

An apparatus includes receive path circuitry configured to receive a Motion Picture Experts Group (MPEG) Media Transport (MMT) container and a processing device configured to identify locations of one or more media fragment units (MFUs) in the MMT container using a hint track within the MMT container. Another apparatus includes transmit path circuitry configured to transmit an MMT container and a processing device configured to identify locations of one or more MFUs in the MMT container using a hint track within the MMT container.

An apparatus includes receive path circuitry configured to receive a Motion Picture Experts Group (MPEG) Media Transport (MMT) container and a processing device configured to identify locations of one or more media fragment units (MFUs) in the MMT container using a hint track within the MMT container. Another apparatus includes transmit path circuitry configured to transmit an MMT container and a processing device configured to identify locations of one or more MFUs in the MMT container using a hint track within the MMT container.

Systems and methods for packet payload mapping for robust transmission of data are described. For example, methods may include receiving, using a network interface, packets that each respectively include a primary frame and one or more preceding frames from the sequence of frames of data that are separated from the primary frame in the sequence of frames by a respective multiple of a stride parameter; storing the frames of the packets in a buffer with entries that each hold the primary frame and the one or more preceding frames of a packet; reading a first frame from the buffer as the primary frame from one of the entries; determining that a packet with a primary frame that is a next frame in the sequence has been lost; and, responsive to the determination, reading the next frame from the buffer as a preceding frame from one of the entries.

Systems and methods for packet payload mapping for robust transmission of data are described. For example, methods may include receiving, using a network interface, packets that each respectively include a primary frame and one or more preceding frames from the sequence of frames of data that are separated from the primary frame in the sequence of frames by a respective multiple of a stride parameter; storing the frames of the packets in a buffer with entries that each hold the primary frame and the one or more preceding frames of a packet; reading a first frame from the buffer as the primary frame from one of the entries; determining that a packet with a primary frame that is a next frame in the sequence has been lost; and, responsive to the determination, reading the next frame from the buffer as a preceding frame from one of the entries.

A system is provided for publishing a disparate live media output stream manifest that includes media segments corresponding to key events. A live production and playout system of disparate sub-systems is synchronized to a reference clock. A timecode from the reference clock is used as a reference time to log content related to key events that occur within the live production and playout system. A live event logging system is synchronized to the reference clock same as the live production and playout system. Based on location of the live event logging system, a time offset is introduced to compensate for a delay. When delay is variable, the reference clock is decoded from a live input stream to associate each key event with a corresponding timecode. Based on a programming schedule comprising the key events that occurred in the live input stream, the disparate live media output stream manifest is published.

A system is provided for publishing a disparate live media output stream manifest that includes media segments corresponding to key events. A live production and playout system of disparate sub-systems is synchronized to a reference clock. A timecode from the reference clock is used as a reference time to log content related to key events that occur within the live production and playout system. A live event logging system is synchronized to the reference clock same as the live production and playout system. Based on location of the live event logging system, a time offset is introduced to compensate for a delay. When delay is variable, the reference clock is decoded from a live input stream to associate each key event with a corresponding timecode. Based on a programming schedule comprising the key events that occurred in the live input stream, the disparate live media output stream manifest is published.

The Cloud-based Video Streaming Service (CVSS) architecture is disclosed to transcode video streams in an on-demand manner. The architecture provides a platform for streaming service providers to utilize cloud resources in a cost-efficient manner and with respect to the Quality of Service (QoS) demands of video streams. In particular, the architecture includes a QoS-aware scheduling method to efficiently map video streams to cloud resources, and a cost-aware dynamic (i.e., elastic) resource provisioning policy that adapts the resource acquisition with respect to the video streaming QoS demands. Simulation results based on realistic cloud traces and with various workload conditions, demonstrate that the CVSS architecture can satisfy video streaming QoS demands and reduces the incurred cost of stream providers up to 70%.

Described herein are various embodiments of decentralized media distribution systems, devices and methods over a scalable local network. Embodiments relate to scalable media distribution amongst media data components comprising at least one media acquisition unit for acquiring source media data, and at least one media presentation unit for processing source media data. Embodiments may comprise two or more transceiver units comprising: at least two source media signal ports for receiving source media signals and transmitting source media signals from and to one of the media presentation units; a signal converter operable to packetize source media signals for communication over said packetized communications network, and to convert packetized network media signals to source media signals for communicating to the media presentation units; and a packetized network media data transceiver operable to multicast and receive packetized network media signals over a packetized communications network to and from any other transceiver unit.

Described herein are various embodiments of decentralized media distribution systems, devices and methods over a scalable local network. Embodiments relate to scalable media distribution amongst media data components comprising at least one media acquisition unit for acquiring source media data, and at least one media presentation unit for processing source media data. Embodiments may comprise two or more transceiver units comprising: at least two source media signal ports for receiving source media signals and transmitting source media signals from and to one of the media presentation units; a signal converter operable to packetize source media signals for communication over said packetized communications network, and to convert packetized network media signals to source media signals for communicating to the media presentation units; and a packetized network media data transceiver operable to multicast and receive packetized network media signals over a packetized communications network to and from any other transceiver unit.