Streaming media transmission device and streaming media transmission method based on multi-server
A streaming media transmission and multi-server technology, applied in the field of streaming media transmission based on multiple servers, can solve problems such as different bandwidth, asynchronous bit rate adjustment, affecting video playback, etc., and achieve the effect of avoiding freeze
Inactive Publication Date: 2017-12-12
PEKING UNIV
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[0003] However, the heterogeneous nature of multi-server bandwidth makes the traditional fragment-based HTTP streaming media code rate selection algorithm face many challenges and difficulties, for example: 1) The bandwidth of each server is different, so the downloading of fragments with the same code rate requires If the time is different, it may not be possible to adjust the code rate for all servers at the same time, which may easily lead to asynchronous code rate adjustment; 2) For different servers, the end time of each fragment download is not synchronized, but the video playback It also has strict timing, so the asynchrony at the end of the download will also affect the playback of the video, and even cause serious freezes, affecting the user experience
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[0064] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0065] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.
[0066] figure 1 A schematic block diagram of a multi-server-based streaming media transmission device according to an embodiment of the present invention is shown.
[0067] Such as figure 1 As shown, the multi-server-based streaming m...
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The present invention provides a multiserver based stream media transmitting device, which includes: a scheduling configuration unit, for determining a target server corresponding to each video clip according to a playing order within the video clips corresponding to a stream media file when the stream media transmitting device needs to download the stream media file, so as to ensure a download completing order of each video clip is consistent with a corresponding playing order when all the target servers are downloading in a parallel manner; a data transmitting unit, for downloading the corresponding video clip; and a video playing unit, for successively decoding and playing the downloaded video clips. The present invention further provides a corresponding multiserver-based stream media transmitting method. Via the technical solution of the present invention, during the multiserver-based stream media file transmitting process, the download completing order of the video clips is enabled to be consistent with the playing order thereof, so that phenomenon such as the stumbling and pausing would be prevented, which would facilitate the improvement in user experiences.
Description
technical field [0001] The present invention relates to the technical field of streaming media transmission, in particular, to a multi-server-based streaming media transmission device and a multi-server-based streaming media transmission method. Background technique [0002] In recent years, dynamic HTTP streaming media transmission technology has been widely used in network video transmission. In order to improve the bandwidth and stability of transmission, in related technologies, video files are divided into video fragments (fragments) of a certain length of time, which are stored on the server side, and a parallel downloading technology based on multiple servers is proposed. [0003] However, the heterogeneous nature of multi-server bandwidth makes the traditional fragment-based HTTP streaming media bit rate selection algorithm face many challenges and difficulties, for example: 1) The bandwidth of each server is different, so the downloading of fragments with the same b...
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IPC IPC(8): H04L29/06H04L29/08
CPCH04N21/23805H04N21/2662H04N21/8456
Inventor 周超张行功郭宗明
Owner PEKING UNIV