![]() You can refer to the input image size with in_w and in_h as shown in this first example.To crop the bottom right quarter: ffmpeg -i in.mp4 -filter:v "crop=in_w/2:in_h/2:in_w/2:in_h/2" -c:a copy out.mp4 The audio is stream copied in this example, so re-encoding is avoided. ![]()
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