The surveillance video playback method includes receiving, by a video surveillance management device, a surveillance video browsing request from a client device, and performing, according to the request, authentication on a user that sends the surveillance video browsing request using the client device; if the user that sends the surveillance video browsing request has permission to view collected data, sending a first link address corresponding to the user request to the client device; and sending video data and the collected data to the client device according to a data request that carries the first link address and is returned by the client device, so that the client device can superimpose the collected data on the video data and then play them.

The play-out of a media stream by a play-out device may be synchronized by a synchronization subsystem with a reference play-out, thereby obtaining a degree of synchronicity with the reference play-out. To address a structural deficiency in the obtaining of the synchronicity with the reference play-out, the play-out device may report a quality of sync metric to a metric subsystem, which may then be analysed to identify the structural deficiency. A corrective action may then be scheduled to address the structural deficiency. Examples of corrective actions include re-clustering of play-out devices, adjusting priority and/or bandwidth in the streaming, etc. As such, the quality of experience of one or more users experiencing the play-out may be improved.

To appropriately perform connection between information processing devices. The information processing device is an information processing device including a communication unit and a control unit. The communication unit is configured to perform image transmission to a first information processing device by using wireless communication. The control unit is configured to temporarily suspend the first information processing device and perform an authentication process with a second information processing device having a different role from the first information processing device if the second information processing device is newly connected when transmitting the image to the first information processing device.

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.

An electronic device is provided. The electronic device includes a wireless communication circuit, at least one processor, and a memory operatively coupled to the at least one processor. The electronic device may be configured to be connected to an external electronic device by using the wireless communication circuit, transmit audio data and video data for reproduction of multimedia in the external electronic device by using the wireless communication circuit, determine whether an input to the multimedia is detected, when the input to the multimedia is detected, transmit information instructing to stop synchronization between the audio data and the video data to the external electronic device.

An electronic device is provided. The electronic device includes a wireless communication circuit, at least one processor, and a memory operatively coupled to the at least one processor. The electronic device may be configured to be connected to an external electronic device by using the wireless communication circuit, transmit audio data and video data for reproduction of multimedia in the external electronic device by using the wireless communication circuit, determine whether an input to the multimedia is detected, when the input to the multimedia is detected, transmit information instructing to stop synchronization between the audio data and the video data to the external electronic device.

A system and method for determining network performance information. The system includes an interface configured to communicate between customer premise equipment (CPE) and a communications device. The system also includes one or more processing units in communication with the interface. The one or more processing units are configured to generate packets communicated by the interface between the CPE and the communications device to determine the network performance information.

A system and method for determining network performance information. The system includes an interface configured to communicate between customer premise equipment (CPE) and a communications device. The system also includes one or more processing units in communication with the interface. The one or more processing units are configured to generate packets communicated by the interface between the CPE and the communications device to determine the network performance information.

A method and a system enabling inter-destination synchronization of processing of content of at least a first and second media stream, wherein said first and second media stream are associated with one or more markers for marking one or more content parts of said first and second media streams respectively. The method comprises the steps of: detecting a first marked content part in said first media stream and a second marked content part in said second media stream, said first and second market content part being associated with a first and second marker respectively; associating first timing information, preferably comprising a first clock time, with said detected first marked content part and associating second timing information, preferably comprising a second clock time, with said detected second marked content part; determining a timing difference on the basis of said first and second timing information; and, generating on the basis of said timing difference synchronization information for enabling a first and/or second synchronization client to adjust the processing of said first and/or second media stream respectively.

A method and a system enabling inter-destination synchronization of processing of content of at least a first and second media stream, wherein said first and second media stream are associated with one or more markers for marking one or more content parts of said first and second media streams respectively. The method comprises the steps of: detecting a first marked content part in said first media stream and a second marked content part in said second media stream, said first and second market content part being associated with a first and second marker respectively; associating first timing information, preferably comprising a first clock time, with said detected first marked content part and associating second timing information, preferably comprising a second clock time, with said detected second marked content part; determining a timing difference on the basis of said first and second timing information; and, generating on the basis of said timing difference synchronization information for enabling a first and/or second synchronization client to adjust the processing of said first and/or second media stream respectively.