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About display aspect ratio

Source: Internet
Author: User
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Display aspect ratio is referred to as Dar, which is a proportional relationship when displayed at a wide height.
In the FFmpeg command, you can set it through-aspect. In practical applications, this parameter is often recommended and not used by each player.   For example: I transcoding a resolution of 640x480 video, its display ratio is set to 10:3 with VLC play, the proportion of video display is 10:3, but with QQ audio and video playback, is 4:3.     transcoding out of the test video: play with VLC: With QQ video playback:

About display aspect ratio

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