A transcoding method and device

Abstract

The embodiment of the present application discloses a transcoding method and device. The method includes: selecting the first definition and the second definition from multiple levels of definition, and determining the The first resolution and the second resolution; according to the first and second resolutions, the first part of the content of the media file is transcoded according to the preset transcoding rules, and the first real-time quantization parameter value and the second quantization parameter value during the transcoding process are recorded. Two real-time quantization parameter values; judging whether the first real-time quantization parameter value and the second real-time quantization parameter value conform to the preset detection rule; if the judgment result is no, adjust the first resolution and / or adjust the second resolution; according to the adjusted Transcode the non-transcoded portion of the media file at the first resolution and / or the second resolution. The transcoding method and device provided in the embodiments of the present application can improve the transcoding speed of media files.

Description

technical field [0001] The present application relates to the technical field of information processing, and in particular to a transcoding method and device. Background technique [0002] With the continuous development of mobile communication technology, the rapid increase of network access speed, the increasingly intelligent mobile terminal, and the increasingly optimized digital compression technology, the mobile terminal has developed from a simple communication and contact tool to a multimedia intelligent platform. . Mobile streaming media is a combination of mobile communication and streaming media transmission. It uses streaming media technology to transmit data on mobile terminals through mobile networks, and provides users with services including video on demand, mobile video chat, and mobile video surveillance. [0003] Transcoding is to compress high-definition super-large media files (such as video files) into a format suitable for certain network scenarios (su...

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Problems solved by technology

[0005] In the process of implementing this application, the inventor found at least the following problems in the prior art: in the existing transcoding method, it is necessary to analyze the transcoding parameters of the media file before transcoding to determine the appropriate resolution and code Rate and other transcoding parameters, and then transcode according to the analyzed parameters and output the transcoded media file. Usually, the process of parameter analysis takes a certain amount of time. When a media file needs to be transcoded into a media file with different resolutions When , parameter analysis is required for each definition, which will take a lot of time and reduce the transcoding speed

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