Now we use qiniu to store uploaded videos. However, the problem is that the mobile phone device has a horizontal or vertical shot. The direction of the uploaded video is incorrect. Now I want to make a video watermark, so I don't know how to rotate the video if I want to rotate it. Please answer? Now we use qiniu to store uploaded videos. However, the problem is that the mobile phone device has a horizontal or vertical shot. The direction of the uploaded video is incorrect. Now I want to make a video watermark, so I don't know how to rotate the video if I want to rotate it. Please answer?
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Now we use qiniu to store uploaded videos. However, the problem is that the mobile phone device has a horizontal or vertical shot. The direction of the uploaded video is incorrect. Now I want to make a video watermark, so I don't know how to rotate the video if I want to rotate it. Please answer?