Generated mp4 files getting failed on Vimeo

[kashifsulaiman]

I'm trying to merge Audio + Image, resulting Video.
I've been successful doing that. That video is successfully Uploading on Firebase Storage, but not on Vimeo.
Upon directly uploading on Vimeo, it stops at Optimizing with the error.

What I've tried so far:

    1. arguments: ['-i', imageName, '-i', audioName, 'output.mp4'],
    2. arguments: ['-i', imageName, '-i', audioName, '-vcodec', 'libx264', '-acodec', 'aac', '-strict', 'experimental', '-preset', 'slow', '-s', 'hd720', '-b', '5000k', '-ab', '320k', '-threads', '0', '-r', '25', '-g', '25', 'output.mp4'],
    3. arguments: ['-i', imageName, '-i', audioName, '-c:v', 'libx264', '-preset', 'slow', '-crf', '20', '-vf', 'format=yuv420p', '-c:a', 'aac', '-ac', '2', '-movflags', '+faststart', 'output.mp4'],
    4. arguments: ['-i', imageName, '-i', audioName, '-vcodec', 'libx264', '-acodec', 'aac', '-strict', 'experimental', '-s', '1280:720', '-b', '4500k', '-ab', '320k', '-r', '25', '-g', '25', '-pix_fmt', 'yuv420p', 'output.mp4'],
    5. arguments: ['-i', imageName, '-i', audioName, '-vcodec', 'libx264', '-acodec', 'aac', '-strict', 'experimental', '-s', '640:480', '-b:v', '2000k', '-ab', '320k', '-r', '25', '-g', '25', '-pix_fmt', 'yuv420p', 'output.mp4'],
    6. arguments: ['-i', imageName, '-i', audioName, '-vcodec', 'libx264', '-b:v', '10000k', '-r', '25', '-flags', 'cgop', '-coder', 'ac', '-g', '25', '-strict', 'experimental', '-acodec', 'aac', '-s', 'hd720', '-b:a', '320k', 'output.mp4']

Second one from the above is from johnjohndoe/vimeo.com.ffpreset
What could be the issue?

[martin16877]

@ kashifsulaiman did you find out the correct settings? I have the same use case (converting mp3 audio file to video with still image) and the same issue ("can't optimize video") and I can't figure out the correct ffmpeg settings.