Streaming media file downloading method and device

A streaming media and file technology, applied in the field of streaming media file downloads, can solve the problems that audio clips cannot be played in time, the synchronization of audio and video downloads is deteriorated, and the playback fluency is affected, so as to reduce the transmission time and ensure smoothness. , to avoid the effect of live streaming delay

Pending Publication Date: 2021-11-23
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the download time of a single segment becomes longer, the above-mentioned waiting time for the corresponding synchronous segment will also become longer. In this way, on the one hand, more cache space will be needed to store the data that has been downloaded but cannot be played synchronously. Due to the above waiting, the received video clips or audio clips cannot be played in time, which will make the synchronization of audio and video downloads worse, which will affect the fluency of playback and increase the delay of live streaming

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  • Streaming media file downloading method and device
  • Streaming media file downloading method and device
  • Streaming media file downloading method and device

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] figure 1 It is a schematic flow chart of the downloading method of the streaming media file in the embodiment of the present invention, as figure 1 As shown, this embodiment mainly includes:

[0038] Step 101, when it is necessary to download a segment of a streaming media file, determine the first download granularity, use the first download granularity as the data volume for a single request to download, download the segment description data of the segment, and based on the segment description Data, build a data frame index table.

[0039] In this step, for each segment of the streaming media file, the client needs to control the data volume of the segment description data downloaded each time according to the first download gr...

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Abstract

The invention discloses a streaming media file downloading method and device. The method comprises the following steps: determining a first downloading granularity when a fragment of a streaming media file needs to be downloaded, taking the first downloading granularity as the data volume requested to be downloaded for a single time, downloading fragment description data of the fragment; based on the fragment description data, constructing a data frame index table; determining a second downloading granularity, and downloading the content data frame indicated by the data frame index table by taking the second downloading granularity as the data volume requested to be downloaded for a single time. According to the method and the device, each segment of the streaming media file is split and downloaded according to a certain downloading granularity, so that the downloading and playing performance of the streaming media file can be improved.

Description

technical field [0001] The invention relates to streaming media download technology, in particular to a method and device for downloading streaming media files. Background technique [0002] Currently Dynamic Adaptive Streaming over HTTP (DASH) is widely used in Internet video streaming. Audio and video streams are transmitted in the format of fragment Mp4, the server side distributes in units of fragments, and the client player applies for downloading audio and video content fragments in units of fragments, so that the video content can be played while downloading. [0003] In the process of implementing the present invention, the inventor found that: when downloading high-definition video using the above-mentioned method of applying for downloading audio and video content segments in units of segments, there will be problems with poor download and playback performance of streaming media files, including : Slow download speed, large memory overhead, poor synchronization of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/845H04N21/2387H04N21/2343H04N21/2662H04N21/84H04L29/08
CPCH04N21/8456H04N21/2387H04N21/2343H04N21/2662H04N21/8455H04N21/84H04L67/06H04L65/612H04L65/752H04L65/80
Inventor 邓艳芳文闻黄思远李磊孙晔
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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