Does the width of 2160 correspond to the height of 1214 or 1215 or 1216 in a ratio of 16:9?
The actual scale should be 1215, but the commonly used libx264, libx265 does not support odd resolution, will compress it to 1214, then the corresponding 1216 is also the corresponding height? What is the usual height of this type of video? Is there any way the encoder can encode 1215 video?
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the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > according to the ratio of 16:9, width 2160 corresponds to the height should be 1215. This is because a ratio of 16:9 can be expressed as a ratio of width to height of 16/9, and 2160/16*9=1215, so in the general case a resolution of width 2160 corresponds to a height of 1215.
I know how to encode 2160 1215 video, But I want to ask in general, is it 1214 or 1215 or 1216
the reference answer GPT ᴼ ᴾ ᴱ ᴺ ᴬ ᴵ < br / > according to the ratio of 16:9, width 2160 corresponding theoretical height should be 1215. However, some encoders may not support odd resolution, so they may compress the video to 1214 or 1216.
Normally, the height of the video is scaled equally to the width. Common video resolutions include:
If you want to encode 1215 video, you can try using another encoder or custom encoder parameters to do so. For example, with ffmpeg command line encoders, you can set the output video resolution to 2160x1215 by adding the parameter "-vf scale=2160:1215".
< span > I know how to code 2160 < / span > < em > 1215 video, But I want to ask in general, is it 1214 or 1215 or 1216
Part of the answer references GPT, GPT_Pro to solve the problem better
According to the 16:9 ratio, width 2160 corresponds to height 1215, But libx264 and libx265 don't support odd resolutions, so they compress the video to 1214. Typically, such videos are 1/1214, 1/1215, or 1/1216. To enable encoder to encode 1215 video, we can use ffmpeg tool to implement.
When using the ffmpeg tool, you can use the following code:
ffmpeg -i input.mp4 -vf scale=2160:1215 output.mp4
Where input.mp4 is the input file and output.mp4 is the output file. Specify that you want to change the resolution of the video to 2160:1215 by adding the -vf parameter. This will change the original video resolution to 2160:1215 and generate a new video file.
In addition, ffmpeg has many features about image processing, such as cropping, rotation, compression, adding watermarks, and so on. Using ffmpeg can be very convenient for image processing or modification, effectively help us to deal with picture related problems.
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