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I'm using FFmpeg and I'm aware that it is the fastest offline video and audio converter. Suddenly I've tried to convert portrait videos into landscape but upon checking its Outcome, it changes its aspect ratio and the video become chubby and that is what I don't like at all. I want to convert portrait videos into landscape video that maintains the aspect ratio and its orientation as portrait.

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    Please post the command that you've used
    – user10191234
    Commented Jan 9, 2021 at 13:26
  • ffmpeg -y -i "/storage/0040-18A0/FFMPEG/input.mp4" -s 720x480 -target ntsc-dvd -ps 1000000000 -aspect 4:3 "/storage/0040-18A0/FFMPEG/output.mpeg"
    – Jefferson Villasan Josol
    Commented Jan 9, 2021 at 15:28

1 Answer 1

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If I understand your question correctly I think that you need to pillarbox your video. It will upscale it and add vertical black bars (pillars).

ffmpeg -i input.mp4 -vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:-1:-1:color=black" output.mp4

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  • Okay, let me try this one and see the outcome. Can i change your given resolution to whatever i want?
    – Jefferson Villasan Josol
    Commented Jan 10, 2021 at 1:28
  • [swscaler @ 04cdb4e0] deprecated pixel format used, make sure you did set range correctly [Parsed_pad_1 @ 046be4e0] Negative values are not acceptable. [Parsed_scale_0 @ 046be560] Failed to configure input pad on Parsed_pad_1 Error opening filters!
    – Svetoslav Marinov
    Commented Aug 5, 2022 at 11:26

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