I have MP3 audio that I would like to turn into video, by joining the audio with a solid black background. I then want to upload the video to Youtube.
Using ffmpeg, I have tried this command, and a few adjacent variants:
ffmpeg -i 'black.png' -i 'input.mp3' -c:v libx264 -tune stillimage -c:a copy 'output.mp4'
black.png is a PNG file that is 640×480 pixels).
However, when uploading the video
output.mp4 to Youtube via Creator's Studio, I get the error:
Processing abandoned. The video could not be processed.
What could be the reason?