According to one embodiment, there is provided a multiplexing method including: receiving a TS over IP packet from a plurality of encoders which are disposed at physically remote places, or which are disposed in a virtual environment on a cloud computing system where physical locations are unidentifiable; performing multiplexing after compensating for a delay and jitter of a transmission path, based on a timestamp which is stamped on an RTP header of the TS over IP packet; and performing, with respect to a PCR packet, either multiplexing after compensating for the delay and the jitter, based on a time re-generated in a multiplexing apparatus, or multiplexing by generating a PCR packet in the multiplexing apparatus.

A broadcaster device generates a live stream including video-based commentary regarding a live event combined with an audio and/or video feed of the live event itself. A viewer device receives a copy of the integrated live event and commentator stream and synchronized event information (e.g., real-time scores), and displays the integrated stream and the event information (e.g., as a “scorebug”). Viewers of a given live event may seamlessly select amongst different broadcasters for the same live event to access different integrated live event and commentator streams respectively synchronized with the event information. A social media platform is provided in tandem with live streaming of digital content relating to live events to allow a given broadcaster and their associated viewers to communicate with one another, comment on the event and/or the broadcaster's live stream, and send digital gifts.

A broadcaster device generates a live stream including video-based commentary regarding a live event combined with an audio and/or video feed of the live event itself. A viewer device receives a copy of the integrated live event and commentator stream and synchronized event information (e.g., real-time scores), and displays the integrated stream and the event information (e.g., as a “scorebug”). Viewers of a given live event may seamlessly select amongst different broadcasters for the same live event to access different integrated live event and commentator streams respectively synchronized with the event information. A social media platform is provided in tandem with live streaming of digital content relating to live events to allow a given broadcaster and their associated viewers to communicate with one another, comment on the event and/or the broadcaster's live stream, and send digital gifts.

A digital receiver for synchronizing multiple components delivered on a broadband network and a broadcast network, the digital receiver including a broadband network interface configured to receive broadband data including at least one audio component for a service via the broadband network, wherein the at least one audio component relates to a Dynamic Adaptive Streaming over HTTP (DASH) segment, wherein the broadband network comprises an internet network; a broadcast network interface configured to receive a broadcast signal including a video component for the service, first timing information, and second timing information via the broadcast network, wherein the broadcast signal further includes a MPD (Media Presentation Description) having a DASH representation containing a segment URL for the DASH segment delivered over the broadband network; and a processor configured to calculate an offset based on a receiver wall clock, and process at least one of the at least one audio component or the video component which is time-aligned based on the calculated offset.

A digital receiver for synchronizing multiple components delivered on a broadband network and a broadcast network, the digital receiver including a broadband network interface configured to receive broadband data including at least one audio component for a service via the broadband network, wherein the at least one audio component relates to a Dynamic Adaptive Streaming over HTTP (DASH) segment, wherein the broadband network comprises an internet network; a broadcast network interface configured to receive a broadcast signal including a video component for the service, first timing information, and second timing information via the broadcast network, wherein the broadcast signal further includes a MPD (Media Presentation Description) having a DASH representation containing a segment URL for the DASH segment delivered over the broadband network; and a processor configured to calculate an offset based on a receiver wall clock, and process at least one of the at least one audio component or the video component which is time-aligned based on the calculated offset.

Method for data transmission, in which an audiovisual media stream of a live (e.g., sporting) event, is transmitted by a first provider via the Internet and/or via at least one mobile radio network to a plurality of user terminals, and a data stream generated on the basis of the live event is made available by a second provider. The audiovisual media stream and the data stream are fed to a data preparation device, which generates a sequence of temporally spaced data packets and provides each data packet with identification information identifying the respective data packet and a time stamp. The generated data packets are synchronized with the media stream at controllable time intervals by the time stamp and sent via a bidirectional communication link by real-time transfer protocols and real-time streaming protocols to a group of user terminals for simultaneous playback synchronized with the audiovisual media stream.

Method for data transmission, in which an audiovisual media stream of a live (e.g., sporting) event, is transmitted by a first provider via the Internet and/or via at least one mobile radio network to a plurality of user terminals, and a data stream generated on the basis of the live event is made available by a second provider. The audiovisual media stream and the data stream are fed to a data preparation device, which generates a sequence of temporally spaced data packets and provides each data packet with identification information identifying the respective data packet and a time stamp. The generated data packets are synchronized with the media stream at controllable time intervals by the time stamp and sent via a bidirectional communication link by real-time transfer protocols and real-time streaming protocols to a group of user terminals for simultaneous playback synchronized with the audiovisual media stream.

Embodiments of this application provide example media packet transmission methods, apparatuses, and systems, and relate to the field of communication technologies. One example method includes receiving, by a user plane network element, a media packet from an application server. The user plane network element determines association information corresponding to the media packet, where the association information is information associated with a client operation corresponding to the media packet. The user plane network element then sends the media packet to an access network element via a quality of service (QoS) flow corresponding to the association information.

This application discloses a video data processing method and apparatus, and an electronic device. The method includes: receiving, by an electronic device, a first data packet, where the first data packet constitutes a target video frame; and in a case that the target video frame is a damaged frame, determining, by the electronic device based on a packet loss rate of second data packets, whether to decode the first data packet, where the second data packets are data packets received by the electronic device within a predetermined time period before the first data packet is received.

A method, apparatus, and system for detecting a video bitstream, and a non-transitory computer-readable storage medium are disclosed. The method may include: receiving a first feature value generated by a source node which transmits a video bitstream, where the first feature value is feature information of the video bitstream generated by the source node according to a preset rule; receiving a second feature value generated by another node which transmits the video bitstream, where the second feature value is feature information of the video bitstream generated by the another node according to the preset rule; determining whether the first feature value is consistent with the second feature value via comparison; and generating an alarm in response to a comparison result that the first feature value is inconsistent with the second feature value.