Methods, systems, and media for synchronizing audio and video content on multiple media devices are provided. In some embodiments, the method comprises: receiving, at a media device, an indication of a media content item to be presented using the media device, wherein the media device includes an audio component for presenting audio content associated with the media content item and a video component for presenting video content associated with the media content item; determining that the media device is associated with a group of media devices for presenting the media content item, wherein the group of media devices includes the media device and at least one audio device that presents the audio content associated with the media content item; generating an audio timestamp that controls the presentation of the audio content on the group of media devices; generating a video timestamp that control the presentation of the video content on the group of media devices; and causing, at the media device, the video content associated with the media content item to be presented using the generated video timestamp and causing the audio content associated with the media content item to be simultaneously presented by the at least one audio device in the group of media devices by transmitting the audio timestamp to the at least one audio device in the group of media devices.

Disclosed herein are an apparatus and method for converting a broadcast signal. The apparatus for converting a broadcast signal includes a demultiplexer unit for receiving a terrestrial broadcast signal and generating a terrestrial signaling signal, a signaling conversion unit for converting the terrestrial signaling signal into a cable signaling signal by parsing the terrestrial signaling signal, a cable multiplexer unit for generating a cable broadcast signal by multiplexing the cable signaling signal, and a cable modulation unit for modulating the cable broadcast signal and transmitting the cable broadcast signal over a cable network.

In particular embodiments, one or more computer systems of a social-networking system receive a first video stream from a content source, receive social content from a social graph of the social-networking system, and generate an overlay area comprising at least a portion of the social content. The social graph includes a plurality of nodes and edges connecting the nodes, the nodes comprising user nodes that are each associated with a particular user of the social-networking system. The one or more computer systems of the social-networking system determine a placement for the overlay area within the first video stream, generate a modified video stream using at least the first video stream and the overlay area, and provide the modified video stream for display on a display device. The overlay area is placed within the modified video stream according to the determined placement.

In particular embodiments, one or more computer systems of a social-networking system determine a first media device of a first user of a social-networking system and determine a second media device of a second user of the social-networking system. The one or more computer systems access a social graph of the social-networking system, update the social graph based on the determined first and second media devices, and stream media from the first media device to the second media device using the updated social graph. The social graph includes nodes and edges connecting the nodes, the nodes including user nodes that are each associated with a particular user of the social-networking system and concept nodes that are each associated with a particular media device.

In particular embodiments, a social networking system queries a social graph of the social-networking system for social content associated with video content provided to one or more users of the social-networking system and accesses privacy settings associated with each of the one or more users. The privacy settings indicate whether a particular user has authorized the social-networking system to share social content associated with the particular user with one or more third parties. The social networking system provides the social content associated with video content provided to the one or more users to a particular third party if the privacy settings of the one or more users indicate that the one or more users have authorized the social-networking system to share the social content with one or more third parties.

A transmission arrangement for wireless transmission of an MPEG2-TS (Transport Stream) compatible datastream is provided with a signal source for supplying the MPEG2-TS compatible datastream, and an arrangement for wirelessly transmitting the MPEG2-TS compatible datastream. The signal source includes an arrangement for receiving an MPEG2-TS compatible datastream, which datastream includes a plurality of video- and/or audio information signals, and is further provided with a selection arrangement which is adapted to (i) derive only one video- and/or audio information signal from the MPEG2-TS compatible datastream having the plurality of video- and/or audio information signals, (ii) generate an MPEG2-TS compatible datastream which includes this only one video- and/or audio information signal, and (iii) supply this datastream as MPEG2 TS compatible output datastream to an output of the signal source. The transmission arrangement is capable of transmitting a video- and/or audio information signal available in the form of an MPEG2-TS compatible datastream.

The present technology relates to a receiving device, a transmitting device, and a data processing method which are capable of providing a broadcast service using a wide bandwidth more flexibly. A receiving device processes a stream in which delivery configuration information indicating that the stream of the broadcast service is delivered across a predetermined frequency band is included in transmission information which is transmitted through an upper layer higher than a physical layer, the stream having a delivery configuration corresponding to the delivery configuration information, so that a broadcast service using a wider bandwidth can be provided. The present technology can be applied to a FW proxy device connected to a network such as, a home LAN, a head end of a cable operator, a base station of a mobile network, or the like.

A video signal processing device includes an SoC that receives input of a plurality of video signals, each including a plurality of packets, and multiplexing the video signals to output a multiplexed video signal, and an FPGA that receives input of a multiplexed video signal and demultiplexes the multiplexed video signal to output the plurality of video signals. When deficient data whose size is less than the size of one packet is detected in any of a plurality of video signals, the FPGA performs one of (i) processing for discarding the detected deficient data and (ii) processing for adding dummy data to the detected deficient data to make the size of the deficient data equal to the size of an integral multiple of one packet.

Methods and apparatuses for detecting timestamp discontinuities and video resolution discontinuities within a packet stream and marking locations of the detected discontinuities within the packet stream are described. Prior to transmission of the packet stream, an electronic device may perform timestamp discontinuity detection by acquiring a sequence of packets to be transmitted, identifying a first timestamp associated with an earliest packet within the sequence of packets, identifying a second timestamp associated with a latest packet within the sequence of packets, determining a timestamp time difference between the first timestamp and the second timestamp, determining a maximum chunk time difference based on a data rate at which the sequence of packets were encoded and a data size of the encoded packets, and detecting that a timestamp discontinuity exists within the sequence of packets if the timestamp time difference is greater than the maximum chunk time difference.