I know you can use FFmpeg to extract the album art of an mp3 file. I also know you can combine an image and audio file to create a video. But, to my surprise, I cannot figure out nor find a way to do this in one step. Has anyone ever figured this out or is it really impossible?
What might be useful is FFmpeg does demux the album art, but it does not show up as video frames. E.g.
ffmpeg -i 1.mp3 out.mp4
results in
Input #0, mp3, from '1.mp3':
Metadata:
artist : Dazzled Sticks
TST : Dazzled Sticks - Let's Dans (Martijn Groeneveld Mashup)
genre : Hiphop/Rap
title : Dazzled Sticks - Let's Dans (Martijn Groeneveld Mashup)
date : 2016
Duration: 00:02:46.84, start: 0.025056, bitrate: 154 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
Metadata:
encoder : Lavc56.26
Stream #0:1: Video: png, rgb24(pc), 1800x1800 [SAR 11811:11811 DAR 1:1], 90k
tbr, 90k tbn, 90k tbc
Metadata:
comment : Other
Stream #0:2: Video: png, rgb24(pc), 1800x1800 [SAR 11811:11811 DAR 1:1], 90k
tbr, 90k tbn, 90k tbc
Metadata:
comment : Other
-map
won't apply.