3/5/2023 0 Comments Ffmpeg crop same qualityNote: Your player may not support this anycodings_video method. The output will be lossless but the anycodings_video output file will be huge. Note anycodings_video that some sizes may not be representable anycodings_video if the chroma is subsampled or the anycodings_video stream is interlaced (see H.264 section anycodings_video 7.4.2.1.1).įfmpeg can encode with several lossless anycodings_video encoders: ffv1, huffyuv, ffvhuff, anycodings_video utvideo, libx264 (using -crf 0 or -qp anycodings_video 0). These values will replace the anycodings_video current ones if the stream is already anycodings_video cropped. Sets the frame cropping offsets in the anycodings_video SPS. Note: Your player may not support this anycodings_video method.Įxample for H.264 video: ffmpeg -i input.mp4 -c copy -bsf:v h264_metadata=crop_left=100:crop_right=20:crop_top=10:crop_bottom=10 output.mp4 The h264_metadata and hevc_metadata anycodings_video bitstream filters can set crop anycodings_video dimensions without modifying the video anycodings_video itself. See FFmpeg Wiki: H.264 Video Encoding anycodings_video Guide for more info. Give it enough bits and you may not be anycodings_video able to tell there is a quality anycodings_video difference: ffmpeg -i input -vf "crop=480:270:200:100" -c:v libx264 -crf 17 -c:a copy ouput.mp4 Accept some quality loss (you may not even notice a difference) Or you could crop with the VLC GUI: anycodings_video Tools â Effects & Filters anycodings_video â Video Effects â anycodings_video Crop. With ffplay and crop filter: ffplay -vf "crop=480:270:200:100" input.mp4 See one of the anycodings_video other methods below if you want an anycodings_video output file. This will use your video player to anycodings_video crop while it is playing. This method will not create an output anycodings_video file. It is also useful to anycodings_video preview a crop. Crop with your playerĪ possible solution would be to crop anycodings_video during playback, so you don't even need anycodings_video to re-encode. You can't perform any filtering without anycodings_video losing quality when encoding to a lossy anycodings_video format, but you have some options.
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