摘要:
Some media applications use media containers, media files or media streams that contain multiple media components in it and require that each component of media be sent to different destinations tailored for rendering a particular type of media component. Furthermore there may be multiple destinations for a particular media component type. For example an application might use a media file with one video and one stereo audio stream and want to send this to two video rendering devices and four stereo audio devices. This invention describes a system for rendering these media components synchronously on multiple devices by demultiplexing the media into media sub components at one destination, sending the components to all destinations and synchronizing the rendering at each device.
摘要:
Bandwidth-efficient archiving of real-time interactive flows is disclosed herein. Related methods, systems, and computer-readable media are also disclosed. In this regard, in one embodiment, a method for archiving a real-time interactive flow is provided. The method comprises receiving, by a computing device, a real-time interactive flow, and forking the real-time interactive flow at the computing device as an archival stream. The method also comprises streaming the archival stream from the computing device to an archival repository at an adjustable streaming rate. The method additionally comprises measuring a change in a performance characteristic of the real-time interactive flow, and modifying the adjustable streaming rate based on the change in the performance characteristic of the real-time interactive flow. In this manner, a real-time interactive flow may be duplicated in a bandwidth-sensitive fashion while capturing a high-quality archive of the real-time interactive flow.
摘要:
Various embodiments of network performance assessment apparatus, systems and processes collect performance information pertaining to a current capacity utilization of a network, identify an occurrence of a capacity constraint on a portion of the network that is communicating the program to at least one presentation device, and modify at least one characteristic of the program and/or the communication thereof over the network so that a total capacity utilization of the network is less than a peak capacity of the network.
摘要:
Some media applications use media containers, media files or media streams that contain multiple media components in it and require that each component of media be sent to different destinations tailored for rendering a particular type of media component. Furthermore there may be multiple destinations for a particular media component type. For example an application might use a media file with one video and one stereo audio stream and want to send this to two video rendering devices and four stereo audio devices. This invention describes a system for rendering these media components synchronously on multiple devices by demultiplexing the media into media sub components at one destination, sending the components to all destinations and synchronizing the rendering at each device.
摘要:
A streaming media resource downloading method includes: determining that a first media file is a to-be-downloaded media file according to first network bandwidth, where the first media file is included in a streaming media resource corresponding to the first network bandwidth, and the first media file includes N data blocks; and after an (n−1)th data block in the first media file is downloaded, and before an nth data block in the first media file is downloaded, determining a length of the to-be-downloaded nth data block according to network bandwidth reduction times in an executed first media file downloading process, where 1≦n≦N. Therefore, a length of a to-be-downloaded data block is adjusted according to the network bandwidth reduction times in the first media file downloading process, so that video playing can better adapt to a bandwidth change, and streaming media resource switching times are reduced.
摘要:
In many low latency media applications it is important to transmit media data packets from a media source to one or more media destinations as promptly as possible, while also ensuring that all media data packets that may be lost due to transmission errors are retransmitted and received correctly at the media destination. This invention described a system to do this with a system and methods for anticipating media data packet loss and making preemptive media data packet retransmission requests by dynamically computing a metric and decision logic for retransmission request that includes a need based factor from the media consuming application.
摘要:
Some media applications use media that contains multiple types of media components in it and media sources with access to this media must send each type of media component to one or more media rendering destination devices. Furthermore there may be multiple destinations that can receive a particular type of media component and the media must be received at each destination without losses. This invention describes a two tier packet buffer structure at the media source with primary and virtual packet buffers that ensures minimal memory use at the media source and minimal network use. Furthermore the use of a sliding window with each virtual packet buffer associated with each destination, independently keeps control and track of destination state, ensuring the correct receipt of media data at each destination.
摘要:
In many low latency media applications it is important to transmit media data packets from a media source to one or more media destinations as promptly as possible, while also ensuring that all media data packets that may be lost due to transmission errors are retransmitted and received correctly at the media destination. This invention described a system to do this with a system and methods for anticipating media data packet loss and making preemptive media data packet retransmission requests by dynamically computing a metric and decision logic for retransmission request that includes a need based factor from the media consuming application.
摘要:
Portions of streaming media are selectively removed for storage and/or delivery over a computer network medium. The amount of data in a media stream itself may be selectively reduced and, the amount of data in the media stream may be selected for delivery and/or storage so that it is reduced in a manageable and consistent fashion. Data within a media stream of a given temporal duration may be selected for delivery and/or storage in such a way that leads to a proportional increase in the maximum speed at which data from the given temporal duration of the media stream may be transmitted and reviewed while simultaneously providing the benefit of reducing overall storage capacity requirements.
摘要:
Various embodiments of network performance assessment apparatus, systems and processes collect performance information pertaining to a current capacity utilization of a network, identify an occurrence of a capacity constraint on a portion of the network that is communicating the program to at least one presentation device, and modify at least one characteristic of the program and/or the communication thereof over the network so that a total capacity utilization of the network is less than a peak capacity of the network.