Amazon Technologies, Inc.

Michael Reddick Coleman

Ryan Paul Hegar

Kevin Moore

Jialu Wang

Garrett Sparks

Jeffrey K Lassahn

John Saxton

Yongjun Wu

Alan Michael Judge

Stefan Christian Richter

Jesse Jerome Rosenzweig

Richard Hazen Galliher, Iii

Evan Gerald Statton

Mairo Pedrini

Kyle Bradley Koceski

Dustin Encelewski

Parminder Singh

Nicolas Weil

Joshua Lamb

Systems and methods are described for facilitating delivery of resources via peer-to-peer connections without requiring an intermediary signaling server. Typically, before establishing a peer-to-peer connection, peers must exchange signaling information such as their reachability over a network. Traditional systems often rely on an intermediary signaling server to act as a go-between for peers and assist in the exchange of signaling information. The present disclosure removes the need for a signaling server. Instead, peers may utilize message collections on a messaging system to exchange signaling information. A requesting peer may submit a request to access a resource to a message collection for that resource. A providing peer may obtain the request, and submit a response to a message collection for the requesting peer. Peers may continue to exchange information via the collections until a peer-to-peer connection is established.

Serverless signaling in peer-to-peer session initialization

A contribution encoder receives media from a source, encodes the media, and transmits the encoded media to a network-adaptive encoding system for eventual distribution to end users. The network-adaptive encoding system tests a network connection between the contribution encoder and the network-adaptive encoding system before transmission of the encoded media begins. The network-adaptive encoding system uses the results of the test to select appropriate values for parameters that define the encoding and transmission of the media. The selected parameter values are transmitted by the network-adaptive encoding system to the contribution encoder for use in encoding and transmitting the media.

Network-adaptive live media encoding system

Methods, systems, and computer-readable media for live previewing of streaming video in the cloud are disclosed. A portion of a video stream is received at a cloud-based media streaming system via a network. The media streaming system generates a video preview of the portion of the video stream. The media streaming system sends the video preview to a client device via a peer-to-peer connection before an additional portion of the video stream is received by the media streaming system. The video preview is displayed on the client device.

Live previewing of streaming video in the cloud

Methods and apparatus are described for efficiently representing manifests and playlists for media presentations. Some media streaming protocols include repetition syntax by which a sequence of media segments having the same duration can be represented with a single entry. A pattern syntax is introduced by which repeating patterns of segment durations in a cycle may be represented in manifests and playlists.

Higher order manifest data compression

Techniques for routing media streams in a provider network are described. A media routing service is disclosed that comprises one or more virtual media routers for routing media streams from one or more media sources to one or more downstream devices coupled to the provider network. The media routing service provides external entities (e.g., users) of the provider network with the ability to request for a virtual media router for routing media content and determines the appropriate set of computing resources necessary to provision and launch the virtual media router in the provider network. In certain embodiments, the media routing service processes routing commands generated by a client, generates routing information comprising source to destination mappings based on the routing commands, and securely distributes media content to identified downstream devices based on the routing information.

Framework for routing media streams in a provider network

Systems and methods are described to enable synchronized encoding of streaming audio or video content between multiple encoders, in a manner that provides for seamlessly interchangeable encodings. Within a pool of encoders, each encoder can generate state information regarding its state of encoding, and share that state information with a controller. The control can compare the state information of the various encoders to determine whether a desynchronization has occurred. When a desynchronization does occur, such as due to intermittent network packet loss, the controller can determine an authoritative state for the pool, and instruct desynchronized encoders to resynchronize to the authoritative state, resulting in identical or interchangeable encoded content being output from each encoder of the pool.

Controller to synchronize encoding of streaming content

Systems and methods are described to enable synchronized encoding of streaming audio or video content between multiple encoders, in a manner that provides for seamlessly interchangeable encodings. Within a pool of encoders, each encoder can periodically generate state information regarding its state of encoding, and share that state information with other encoders. The other encoders can compare the state information to their current state, to determine whether a desynchronization has occurred. When a desynchronization does occur, such as due to intermittent network packet loss, the encoders within the pool can evaluate the shared state information to determine an authoritative state, and then resynchronize to the authoritative state, resulting in identical or interchangeable encoded content being output from each encoder of the pool.

Synchronization of multiple encoders for streaming content

Methods, systems, and computer-readable media for unicast routing of a media stream to subscribers are disclosed. A stream routing service is implemented using one or more computing devices that are provisioned from a multi-tenant provider network. The service acquires a media stream over one or more input channels from a media source. The service replicates the media stream to a plurality of subscriber components that have subscribed to the media stream. The media stream is replicated to the subscriber components using unicast transmission to individual addresses of the subscriber components.

Growing community of inventors

Portland, OR, United States of America

Michael Reddick Coleman