摘要:
Aspects of the disclosure provide methods and apparatuses for media processing. In some examples, an apparatus includes processing circuitry. The processing circuitry can exchange, with a server device, a plurality of control messages over a control plane channel that uses a first transport protocol. The plurality of control messages belongs to a control plane of a bidirectional protocol for immersive media distribution. The processing circuitry receives, from the server device, a first plurality of data messages over a first data plane channel that uses a second transport protocol. The first plurality of data messages belongs to a data plane of the bidirectional protocol and carries immersive media content. The processing circuitry presents the immersive media content carried by the first plurality of data messages.
摘要:
Systems and methods for adaptive content streaming based on bandwidth are disclosed. According to one example method, content is requested for delivery. An indication of complexity of a plurality of media content items associated with the content is received. Based on the indication of complexity and an available bandwidth at the user device, at least one of the plurality media content items is selected and retrieved from the media server.
摘要:
A system for maximizing storage of encrypted content in a storage system includes one or more processors; and a storage medium storing instructions. When executed, the instructions may configure the one or more processors to: receive, from a first client device, a first data structure encrypted commutatively with a first key and a common key, the receiving system lacking access to the common key; receive the first key and a first segment identifier; receive, from a second client device, a second data structure encrypted commutatively with a second key and the common key; receive a second segment identifier; using the first key, partially decrypt the first data structure; storing the partially decrypted first data structure; and selectively storing a copy of the second data structure based on whether content of the first data structure corresponds to content of the second data structure.
摘要:
The present disclosure refers to the field of streaming media content to a client device. In the frame of the present disclosure, it is proposed a method and system to transmit an audio/video stream of to a destination device, said audio/video stream comprising a plurality first segments, each representing a first duration of video at original bit-rate, said method comprising : - receiving and decompressing by a transcoding node the audio/video stream to obtain a decompressed video stream and an audio stream, - dividing the decompressed video stream into a plurality of second segments, each segment representing a second duration of video at original bit-rate, said second duration being smaller than the first duration, - generating at least one low bit-rate version of the second segment, and compressing the at least one low bit-rate segment and the second segment, multiplexing the at least one low bit-rate segment, the second segment and the audio segment to produce a multi-bit-rate stream, transmitting the multi-bit-rate stream to at least one Network Access Point, - demultiplexing by the Network Access Point the multi-bit-rate stream to obtain the second segment and the at least one lower bit-rate segment, - receiving by the Network Access Point from the destination device a request to the audio/video stream, selecting the original bit-rate segment or one of the lower bit-rate segments, multiplexing the selected segment with the audio segment to form a multiplexed segment, transmitting the multiplexed segment to the destination device, receiving at least one acknowledgement message from the destination device that the multiplexed segment has been received, determining, by the Network Access Point, a level of completion of the multiplexed segment by the destination device, said level of completion being derived from the acknowledgment message, selecting the original bit-rate segment or one of the lower bit-rate segment based on the level of completion for the further multiplexed segment.
摘要:
A method of transmitting audio and/or video data to a plurality of client devices over a wireless network. The method includes, at a server: encoding a stream of audio and/or video data to provide an encoded stream of audio and/or video data for transmission over the wireless network; transmitting the encoded stream of audio and/or video data to the plurality of client devices over the wireless network; receiving, from one or more of the client devices, statistics derived from the encoded stream of audio and/or video data as received by the one or more client devices; and modifying the encoding of the stream of audio and/or video data based on the received statistics. The method may be particularly suitable for transmission of audio and/or video data to a large number of client devices in a densely packed environment.
摘要:
Systems, methods, and devices of the various embodiments enable a receiver device to use a modified segment availability time. In various embodiments, a receiver device may be enabled to modify availability start times for segments in a segment availability timeline, such as a Media Presentation Description (MPD), to account for the actual times when segments will be available to a DASH client.
摘要:
A method of dereferencing by a client in a network implementing Dynamic Adaptive Streaming over Hypertext Transfer Protocol (HTTP) (DASH), the method comprising receiving a first period of streaming content containing a message instructing the client to retrieve an updated media presentation description (MPD) and containing an indicator indicating a location from which the client is to retrieve the updated MPD, retrieving the updated MPD, and dereferencing a link in the updated MPD, wherein the link indicates a location of content to be streamed in a second period of streaming content described in the updated MPD, and wherein the client performs the dereferencing at a time before an end of the first period of streaming content that is twice a length of a minimum buffer time.
摘要:
This disclosure relates to techniques for enabling a sink device in a Wireless Display (WD) system to control operation of the source device and media data sent from the source device. In one example, a method comprises establishing a communication session between a source device and at least one sink device capable of operating in a Minimal Cognitive (MC) mode, wherein the MC mode includes one or more levels, receiving a signal from the sink device to activate a particular level of the MC mode based on trigger information detected at the sink device, and sending media data to the sink device according to an altered operation of the source device for the particular level of the MC mode.