Fragmentation transcoding method and system of live video and real-time video

A technology of real-time video and live video, applied in the field of audio and video, can solve problems such as user interruption and transcoding delay, and achieve an effect that is conducive to development

Active Publication Date: 2011-01-19
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Moreover, when transcoding a live broadcast program, the transcoding delay caused by the recording and broadcast of the live broadcast video makes the user feel intermittent

Method used

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Embodiment Construction

[0023] In order to make the object, 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 embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] figure 1 The flow of the live video and the segmented transcoding method of the real-time video provided by the embodiment of the present invention is shown.

[0025] In step S101, receiving a user's transcoding instruction;

[0026] In step S102, after the on-site program starts for p seconds, the program video of the first p seconds is transcoded, and then transmitted to the user terminal after transcoding;

[0027] In step S103, according to the transcoding speed and transmission speed of the program video, after the live program starts p+a*p / k seconds, p+(a-1)*p / k seconds to p+a*p / k ...

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Abstract

The invention discloses a fragmentation transcoding method and system of the live video and the real-time video. The method comprises the following steps: when a live program is performed for p seconds, the p seconds of program video is transcoded and then transmitted to the client side; when the live program is performed for p+a*p seconds, the video from the (p+(a-1)*p / k)-th second to the (p+a*p / k)-th second is transcoded according to the transcoding speed and transmission speed of the program video, wherein a is a natural number; after each fragment completes transcoding, the fragments are transmitted to the client side, wherein the transcoding speed of the program video is g, the transmission speed of the program video is h, the transcoding time of the first p seconds of the program video is m seconds, the time that the first p seconds of the program video is transmitted to the client side after transcoding is n seconds, g=p / m, h=p / n; the transcoding time of the first p / k seconds is about (p / k) / g seconds, the time that the first p / k seconds of video is transmitted to the client side after transcoding is (p / k) / h; and k satisfied the following condition: p+m+n>p / k+(p / k) / g+(p / k) / h. By using the method of the invention, the times of the first fragment and the other fragments can be well determined, and the program video broadcasting on the client side can not be interrupted.

Description

technical field [0001] The invention belongs to the technical field of audio and video, and in particular relates to a slice transcoding method and system for live video and real-time video. Background technique [0002] With the rapid development of audio and video playback technologies, users have higher and higher requirements for audio and video playback functions. [0003] Live video and real-time video sometimes need to be transcoded. When transcoding video, the traditional method is to slice the original video file into multiple video slices, and then transcode the cut out multiple video slices one by one. code. For example, for an existing large video, assuming that the video can be divided into 7 segments, and transcoding each segment requires m seconds, the user can watch the transcoded video file after 7m seconds. [0004] Moreover, when transcoding a live broadcast program, the transcoding delay caused by the recording and broadcast of the live broadcast video ...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/24H04N21/2343
Inventor 朱定局
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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