The present disclosure relates to systems and methods for live streaming. The system may receive a play request associated with a live stream from a terminal device. The system may determine whether there are one or more cached fragments associated with the live stream, wherein the one or more cached fragments are cached from a stream source via a first protocol. In response to determining that there are one or more cached fragments associated with the live stream, the system may determine whether the play request is a request that the terminal device requests the live stream for the first time. In response to determining that the play request is the request that the terminal device requests the live stream for the first time, after a caching of a current fragment is completed, the system may transmit an index file corresponding to the current fragment and at least one of the one or more cached fragments to the terminal device via a second protocol.

The present disclosure relates to systems and methods for live streaming. The system may receive a play request associated with a live stream from a terminal device. The system may determine whether there are one or more cached fragments associated with the live stream, wherein the one or more cached fragments are cached from a stream source via a first protocol. In response to determining that there are one or more cached fragments associated with the live stream, the system may determine whether the play request is a request that the terminal device requests the live stream for the first time. In response to determining that the play request is the request that the terminal device requests the live stream for the first time, after a caching of a current fragment is completed, the system may transmit an index file corresponding to the current fragment and at least one of the one or more cached fragments to the terminal device via a second protocol.

A method for processing streaming media data includes: receiving the streaming media data, and caching the streaming media data at a cache server in accordance with a cache dictionary; establishing a connection between a client and the cache server, and determining target streaming media data corresponding to the client, the client including a plug-in end and a subscription end; and pushing the target streaming media data to the client.

Origin offload is a key performance indicator of a content delivery network (CDN). This patent document presents unique methods and systems for measuring origin offload and applying those measurements to improve the offload. The techniques presented herein enable resource-efficient measurement of origin offload by individual servers and aggregation and analysis of such measurements to produce significant insights. The teachings hereof can be used to better identify root causes of suboptimal offload performance, to tune CDN settings and configurations, and to modify network operations, deployment and/or capacity planning. in addition, discussed herein are improved metrics showing offload in relation to the maximum achievable offload for the particular traffic being served.

Origin offload is a key performance indicator of a content delivery network (CDN). This patent document presents unique methods and systems for measuring origin offload and applying those measurements to improve the offload. The techniques presented herein enable resource-efficient measurement of origin offload by individual servers and aggregation and analysis of such measurements to produce significant insights. The teachings hereof can be used to better identify root causes of suboptimal offload performance, to tune CDN settings and configurations, and to modify network operations, deployment and/or capacity planning. in addition, discussed herein are improved metrics showing offload in relation to the maximum achievable offload for the particular traffic being served.

Implementations provide low-latency live-video streams using existing content delivery networks. An example method includes receiving a video broadcast as a series of frames and determining, for each frame, whether the frame is a break frame. Responsive to determining that the frame is a break frame, the method includes removing an in-progress tag from a current segment file in a playlist for the video broadcast. The playlist includes at least a previous segment file, the current segment file, and a next segment file, which also has a respective in-progress tag. The method also includes associating the frame with a next segment file in a playlist and transmitting the playlist to a cache server. Responsive to determining the frame in the series of frames is not a break frame, the method includes associating the frame with the current segment file. The frame is transmitted to the cache server as a chunk.

Implementations provide low-latency live-video streams using existing content delivery networks. An example method includes receiving a video broadcast as a series of frames and determining, for each frame, whether the frame is a break frame. Responsive to determining that the frame is a break frame, the method includes removing an in-progress tag from a current segment file in a playlist for the video broadcast. The playlist includes at least a previous segment file, the current segment file, and a next segment file, which also has a respective in-progress tag. The method also includes associating the frame with a next segment file in a playlist and transmitting the playlist to a cache server. Responsive to determining the frame in the series of frames is not a break frame, the method includes associating the frame with the current segment file. The frame is transmitted to the cache server as a chunk.

The present invention provides a method for generating customized dynamic video, said method comprising the steps of: partitioning customized dynamic video's timeline, using a predefined partition scheme, into a series of chunk descriptors, each defined by an interval of the timeline and corresponding to a video chunk of the customized dynamic video; for each chunk descriptor, constructing an identifier based on a set of parameters that represent visual characteristics of the video chunk, and associating said identifier to the chunk descriptor; for each chunk descriptor, querying a cache of previously rendered and encoded video chunks for a video chunk indexed by the identifier matching that of the chunk descriptor; in the case that a video chunk whose identifier matches the queried identifier is found, retrieving said video chunk from the cache; otherwise, rendering and encoding the video chunk, for the chunk descriptor's timeline interval, and saving said video chunk in the cache, indexed by the identifier.

A media stream sending method provides a live media stream for a client that enters a live broadcast room. A proxy server receives, from a first client, a first live broadcast room request message for requesting to enter the live broadcast room; the proxy server determines a role of the first client based on the first live broadcast room request message; and if the role of the first client is a slave user, the proxy server sends a first live media stream cached in the proxy server to the first client, where the first live media stream is a media stream that is sent by a media server to a second client through the proxy server, and a role of the second client is a master user.

A media stream sending method provides a live media stream for a client that enters a live broadcast room. A proxy server receives, from a first client, a first live broadcast room request message for requesting to enter the live broadcast room; the proxy server determines a role of the first client based on the first live broadcast room request message; and if the role of the first client is a slave user, the proxy server sends a first live media stream cached in the proxy server to the first client, where the first live media stream is a media stream that is sent by a media server to a second client through the proxy server, and a role of the second client is a master user.