Proccess videos using ffmpeg and does not save the video to disk

[Gaploid]

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Question

Hi,
I'm using youtube-dl to download videos with external ffmpeg downloader that produce images at the same time. Something like that
youtube-dl --hls-prefer-ffmpeg --fixup warn --external-downloader ffmpeg --external-downloader-args "-filter_complex \"[0:v]fps=2,crop=in_w/3.84:in_h/21.6:in_w/2.74:in_h/1.43, scale=in_w*2:in_h*2,unsharp=luma_msize_x=7:luma_msize_y=7:luma_amount=2.5[out1];[0:v]fps=2,crop=in_w/2.96:in_h/21.62:in_w/1.58:in_h/5.68, scale=in_w*2:in_h*2,unsharp=luma_msize_x=7:luma_msize_y=7:luma_amount=2.5[out2]\" -map [out1] -map -c:a -q:v 1 C:\\temp\\images\\middle%d.tiff -map [out2] -map -c:a -q:v 1 C:\\temp\\images\\up%d.tiff" --restrict-filenames --skip-unavailable-fragments -o 439815364.mp4 "https://www.twitch.tv/videos/439815364"

I really need only these images and I don't need the final .mp4 file. Is there any option not to save the final video file to disk? I've tried option "--skip-download" with no success it even did not start the downloading process.

[dstftw]

Remove it with --exec.

[Gaploid]

Thanks for the fast response!

I'm trying to avoid consuming a lot of space on a disk. I don't have space on the disk to download the whole video. That's why I'm trying to save only some part of the video in images and don't need the video itself. Your solution will not help the unfortunatly cause at the end I still need space for the whole video.

[Gaploid]

It seems I've figured out how to do that through pipes. Here is the final command to do that:
youtube-dl --hls-prefer-ffmpeg -o - "https://www.twitch.tv/videos/439815364" | ffmpeg -i pipe: -filter_complex "[0:v]fps=2,crop=in_w/3.84:in_h/21.6:in_w/2.74:in_h/1.43, scale=in_w*2:in_h*2,unsharp=luma_msize_x=7:luma_msize_y=7:luma_amount=2.5[out1];[0:v]fps=2,crop=in_w/2.96:in_h/21.62:in_w/1.58:in_h/5.68, scale=in_w*2:in_h*2,unsharp=luma_msize_x=7:luma_msize_y=7:luma_amount=2.5[out2]" -map [out1] -map -c:a -q:v 1 C:\temp\images\middle%d.tiff -map [out2] -map -c:a -q:v 1 C:\temp\images\up%d.tiff