# US 2022/0286489 A1 · System and method of streaming content between peer devices in a broadcast environment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0286489 A1 - Document ID: US20220286489A1 - Status: Published application - Kind: A1 - Application number: 17/653,037 - Filed: 2022-03-01 - Published: 2022-09-08 - Earliest claimed: 2021-03-02 - Assignees: Grass Valley Canada - Applicants: Grass Valley Canada - Inventors: Vincent TRUSSART - Web page: https://patentgrep.com/patent/US20220286489A1 ## CPC - H04L 65/61: for supporting one-way streaming services, e.g. Internet radio - H04L 12/18: for broadcast or conference {, e.g. multicast} - H04L 12/1859: {adapted to provide push services, e.g. data channels} - H04L 12/1877: {Measures taken prior to transmission} - H04L 45/586: of virtual routers - H04L 65/611: for multicast or broadcast (systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06) - H04L 65/65: Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP] - H04L 65/70: Media network packetisation - H04L 65/80: Responding to QoS - H04N 21/2381: Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network {(transmission of MPEG streams over ATM H04L12/5601)} - H04N 21/6125: {involving transmission via Internet (transmission by internet of broadcast information H04H60/82)} - H04N 21/632: {using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices (broadcast-related systems characterised by transmission among terminal devices H04H60/80; distributed application using peer-to-peer [P2P] networks H04L67/104)} - H04N 21/6437: Real-time Transport Protocol [RTP] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A system is provided for streaming broadcast media content between peer devices in a media distribution network. The system includes a virtual router panel that includes a notification service controller that receives a data communication request from two or more peer devices and a data communication handshaking controller selects a delivery protocol between the two devices based on exchanging communication candidates that identify peer addresses. A media streaming tunnel generator establishes a streaming tunnel between the first device and the second device based on the respective delivery protocol selected by the data communication handshaking controller; and an encoder packetizes video, audio and ancillary grains directly as packets of the broadcast media content to be streamed directly from the first device to the second device via the established streaming tunnel without multiplexing. ## Claims ### Claim 1 A system for streaming broadcast media content between a plurality of peer devices in a media distribution network, the system comprising: a virtual router panel that includes notification service controller configured to receive a data communication request from at least two devices of the plurality of peer devices, wherein the data communication request from a first device of the at least two devices includes a publication request to provide the media content, and wherein the data communication request from a second device of the at least two devices includes a subscription request to receive the media content; a data communication handshaking controller configured to select a delivery protocol between the at least two devices based on exchanging communication candidates that identify peer addresses configurable for performing media streaming of the media content from the first device to the second device, wherein the data communication handshaking controller: selects a first delivery protocol when the communication candidates identifies local IP addresses of the first and second devices, selects a second delivery protocol that identifies a STUN server if at least one of the communication candidates is an externally visible IP address, and selects a third delivery protocol that utilizes a relay server for streaming the media content having a publicly visible address; a media streaming tunnel generator configured to establish a streaming tunnel between the first device and the second device based on the respective delivery protocol selected by the data communication handshaking controller; and an encoder configured to packetize video, audio and ancillary grains directly as a plurality of packets of the broadcast media content configured to be streamed directly from the first device to the second device via the established streaming tunnel without multiplexing, wherein the established streaming tunnel is configured to bypass a firewall on the second device to deliver the plurality of packets of the broadcast media content thereon, and wherein the plurality of packets include real-time transport protocol (RTP) timestamps that are unpacked by the second device to align and synchronize the media content during playout thereon. ### Claim 2 (depends on 1) The system according to claim 1, wherein the media streaming tunnel generator establishes the streaming tunnel for Internet streaming of the broadcast media content from the first device to the second device without prior configuration of the firewall on the second device. ### Claim 3 (depends on 2) The system according to claim 2, wherein the established streaming tunnel streams the broadcast media content from the first device to the second device without exposing an IP address and a port of the second device. ### Claim 4 (depends on 1) The system according to claim 1, wherein the at least two devices of the plurality of peer devices communicate the respective data communication requests based on respective web browsers using Web real-time communication protocols to communicate the requests to the virtual router panel. ### Claim 5 (depends on 1) The system according to claim 1, wherein the notification service controller is configured to store a list of the plurality of peer devices that includes metadata indicating a respective type and format of the streaming tunnel that streams the broadcast media content from the first device to the second device, such that a subsequent subscription request from another of the plurality of peer devices can access the broadcast media content over a streaming tunnel based on the stored type and format available by the first device. ### Claim 6 (depends on 1) The system according to claim 1, wherein the encoder packetize the video, audio and ancillary grains based on raw codecs over RTP, such that the first device streams the broadcast media content over the streaming channel to the second device without the multiplexing to synchronize timing of the video, audio and ancillary grains. ### Claim 7 A system for streaming broadcast media content between a plurality of peer devices in a media distribution network, the system comprising: a media production system that includes notification service controller configured to receive a data communication request from at least two devices of the plurality of peer devices, wherein the data communication request from a first device of the at least two devices includes a publication request to provide the media content, and wherein the data communication request from a second device of the at least two devices includes a subscription request to receive the media content; a data communication handshaking controller configured to select a delivery protocol between the at least two devices based on exchanging communication candidates that identify peer addresses configurable for performing media streaming of the media content from the first device to the second device, wherein the data communication handshaking controller: selects a first delivery protocol when the communication candidates identifies local IP addresses of the first and second devices, selects a second delivery protocol that identifies a STUN server if at least one of the communication candidates is an externally visible IP address, and selects a third delivery protocol that utilizes a relay server for streaming the media content having a publicly visible address; a media streaming tunnel generator configured to establish a streaming tunnel between the first device and the second device based on the respective delivery protocol selected by the data communication handshaking controller; and an encoder configured to packetize video, audio and ancillary grains directly as a plurality of packets of the broadcast media content configured to be streamed directly from the first device to the second device via the established streaming tunnel without multiplexing, wherein the established streaming tunnel is configured to bypass a firewall on the second device to deliver the plurality of packets of the broadcast media content thereon. ### Claim 8 (depends on 7) The system according to claim 7, wherein the plurality of packets include real-time transport protocol (RTP) timestamps that are unpacked by the second device to align and synchronize the media content during playout thereon. ### Claim 9 (depends on 7) The system according to claim 7, wherein the media production system is virtual router panel executed in a cloud computing environment for controlling the media streaming of the broadcast media content between the first device and the second device. ### Claim 10 (depends on 7) The system according to claim 7, wherein the media streaming tunnel generator establishes the streaming tunnel for Internet streaming of the broadcast media content from the first device to the second device without prior configuration of the firewall on the second device. ### Claim 11 (depends on 10) The system according to claim 10, wherein the established streaming tunnel streams the broadcast media content from the first device to the second device without exposing an IP address and a port of the second device. ### Claim 12 (depends on 7) The system according to claim 7, wherein the at least two devices of the plurality of peer devices communicate the respective data communication requests based on respective web browsers using Web real-time communication protocols to communicate the requests to the virtual router panel. ### Claim 13 (depends on 7) The system according to claim 7, wherein the notification service controller is configured to store a list of the plurality of peer devices that includes metadata indicating a respective type and format of the streaming tunnel that streams the broadcast media content from the first device to the second device, such that a subsequent subscription request from another of the plurality of peer devices can access the broadcast media content over a streaming tunnel based on the stored type and format available by the first device. ### Claim 14 (depends on 7) The system according to claim 7, wherein the encoder packetize the video, audio and ancillary grains based on raw codecs over RTP, such that the first device streams the broadcast media content over the streaming channel to the second device without the multiplexing to synchronize timing of the video, audio and ancillary grains. ### Claim 15 A system for streaming broadcast media content between a plurality of peer devices in a media distribution network, the system comprising: a media production system that includes notification service controller configured to receive a data communication request from at least two devices of the plurality of peer devices, wherein the data communication request from a first device of the at least two devices includes a publication request to provide the media content, and wherein the data communication request from a second device of the at least two devices includes a subscription request to receive the media content; a data communication handshaking controller configured to select a delivery protocol between the at least two devices based on exchanging communication candidates that identify peer addresses configurable for performing media streaming of the media content from the first device to the second device; a media streaming tunnel generator configured to establish a streaming tunnel between the first device and the second device based on the delivery protocol selected by the data communication handshaking controller; and an encoder configured to packetize video, audio and ancillary grains directly as a plurality of packets of the broadcast media content configured to be streamed directly from the first device to the second device via the established streaming tunnel without multiplexing, wherein the established streaming tunnel is configured to bypass a firewall on the second device to deliver the plurality of packets of the broadcast media content thereon. ### Claim 16 (depends on 15) The system according to claim 15, wherein the data communication handshaking controller is configured to: select a first delivery protocol when the communication candidates identifies local IP addresses of the first and second devices, select a second delivery protocol that identifies a STUN server if at least one of the communication candidates is an externally visible IP address, and select a third delivery protocol that utilizes a relay server for streaming the media content having a publicly visible address. ### Claim 17 (depends on 15) The system according to claim 15, wherein the plurality of packets include real-time transport protocol (RTP) timestamps that are unpacked by the second device to align and synchronize the media content during playout thereon. ### Claim 18 (depends on 15) The system according to claim 15, wherein the media production system is virtual router panel executed in a cloud computing environment for controlling the media streaming of the broadcast media content between the first device and the second device. ### Claim 19 (depends on 15) The system according to claim 15, wherein the media streaming tunnel generator establishes the streaming tunnel for Internet streaming of the broadcast media content from the first device to the second device without prior configuration of the firewall on the second device. ### Claim 20 (depends on 19) The system according to claim 19, wherein the established streaming tunnel streams the broadcast media content from the first device to the second device without exposing an IP address and a port of the second device. ### Claim 21 (depends on 15) The system according to claim 15, wherein the at least two devices of the plurality of peer devices communicate the respective data communication requests based on respective web browsers using Web real-time communication protocols to communicate the requests to the virtual router panel. ### Claim 22 (depends on 15) The system according to claim 15, wherein the notification service controller is configured to store a list of the plurality of peer devices that includes metadata indicating a respective type and format of the streaming tunnel that streams the broadcast media content from the first device to the second device, such that a subsequent subscription request from another of the plurality of peer devices can access the broadcast media content over a streaming tunnel based on the stored type and format available by the first device. ### Claim 23 (depends on 15) The system according to claim 15, wherein the encoder packetize the video, audio and ancillary grains based on raw codecs over RTP, such that the first device streams the broadcast media content over the streaming channel to the second device without the multiplexing to synchronize timing of the video, audio and ancillary grains.