A transcoding method and device
A transcoding and bit rate technology, applied in the field of transcoding methods and devices, can solve the problem of inability to guarantee the current content clarity of media files, and achieve the effect of smooth and clear playback
Active Publication Date: 2018-08-24
ALIBABA GRP HLDG LTD
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Problems solved by technology
[0005] In the process of implementing this application, the inventors found that there are at least the following problems in the prior art: the instantaneous code rate in the existing transcoding method is calculated according to the preset resolution and the content of the media file, in the preset Under the set resolution and instantaneous bit rate, the current content of the media file can be played clearly. When the instantaneous bit rate is greater than the upper limit bit rate corresponding to the resolution, the upper limit bit rate is used for transcoding. If the media file is guaranteed to play smoothly, the clarity of the current content of the media file may not be guaranteed
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Embodiment Construction
[0026] Embodiments of the present application provide a transcoding method and device.
[0027] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0028] figure 1 It is a flowchart of an embodiment of the transcoding method of the present application. Such as figure 1 As shown, the transcoding method may include:
[0029] S101: Acquire attribute information of a media file, where the attribu...
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The embodiment of the present application discloses a transcoding method and device. The method includes: obtaining the initial resolution of the media file; determining the first resolution level and the second resolution level corresponding to the media file, and determining the first resolution level The first resolution corresponding to the high-definition level and the second resolution corresponding to the second definition level; according to the first resolution and the second resolution, pre-encoding is performed using the first preset rule to obtain the first definition level The first pre-encoding code rate corresponding to the bit and the second pre-encoding code rate corresponding to the second definition level; if the first pre-encoding code rate is greater than the preset code rate threshold, adjust the first resolution and the second resolution; Based on the adjusted first resolution and the adjusted second resolution, the media file is transcoded using a first preset rule. The transcoding method and device provided in the above embodiments can ensure smooth and clear playback 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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IPC IPC(8): H04N21/2343
CPCH04N21/234309H04N21/234381H04N21/234363H04N21/23439H04N19/115H04N19/15H04N19/40H04N19/46H04N19/59H04N19/147
Inventor 江文斐孟辰裴银祥
Owner ALIBABA GRP HLDG LTD