Do I have to convert my mp3 file to mp4 by adding blackout video track using handbrake ?
It seems you can’t. Take a look at u/nutomic’s comment downthread. AFAICT, the best you can do is upload it to some other site and post a link to it here.
Ok, I tried
This created a file too big
ffmpeg -i "Somebody I Vacuum to Decay.mp3" -c:a copy -f mp4 "Somebody I Vacuum to Decay.mp4"
This recompress to 64kbit, but still a few byte over the limit
ffmpeg -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 64k -f mp4 "Somebody I Vacuum to Decay.64kbit.mp4"
This was under the limit, but when uploaded, the file disappeared with no error message
ffmpeg -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 56k -f mp4 "Somebody I Vacuum to Decay.56kbit.mp4"
I tried copy to mp4 but trunkate a 30seconds, same behaviour as 56kbit file, despite being under 500k
ffmpeg -i "Somebody I Vacuum to Decay.mp3" -t 30 -c:v copy "Somebody I Vacuum to Decay.30secs.mp4"
I tried adding an image, but this just created a 1 second file with no image
ffmpeg -i "Somebody I Vacuum to Decay.mp3" -i "image(62)-2.png" -c:a aac -b:a 64k -c:v libx264 -shortest "Somebody I Vacuum to Decay.56kbit.withpic.mp4"
This next one loops the image file, now it created the full song with an image in the video channel. Unfortunately the video track now weights about 3 megabytes, so way over
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 64k -c:v libx264 -shortest -vf "scale=1280:720" "Somebody I Vacuum to Decay.56kbit.withpic.mp4"
This next one created a 2.4mbps file, the image is now awful quality
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 64k -c:v libx264 -b:v 100k -vf "scale=320:320" -shortest "Somebody I Vacuum to Decay.56kbit.withpic.mp4"
This reduces video bandwidth to 10kbps, image is incomprehensible and the file is still 1.3 megabytes (400k for the video stream)
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 64k -c:v libx264 -b:v 10k -vf "scale=320:320" -shortest "Somebody I Vacuum to Decay.56kbit.withpic.mp4"
Reduced video stream to 1kbps, 1.2 megabytes, still too big
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 64k -c:v libx264 -b:v 1k -vf "scale=320:320" -shortest "Somebody I Vacuum to Decay.56kbit.withpic.mp4"
I reduced audio quality to 32kbps, 677 kilobytes, half of that is the video stream still, and at this point it’s just a gray image
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 32k -c:v libx264 -b:v 1k -vf "scale=320:320" -shortest "Somebody I Vacuum to Decay.32kbit.withpic.mp4"
And I post it here And the uploaded file just disappears …
I try raising the video quality then the resolution
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 32k -c:v libx264 -b:v 10k -vf "scale=320:320" -shortest "Somebody I Vacuum to Decay.32kbit.withpic.mp4"
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 32k -c:v libx264 -b:v 20k -vf "scale=480:480" -shortest "Somebody I Vacuum to Decay.32kbit.withpic.mp4"
final attempt, I’m not sure why it won’t accept it, no errors, it is under 1 megabyte
ffmpeg -loop 1 -i "image(62)-2.png" -i "Somebody I Vacuum to Decay.mp3" -c:a aac -b:a 32k -c:v libx264 -b:v 20k -vf "scale=1280:720" -shortest "Somebody I Vacuum to Decay.32kbit.withpic.mp4"
Sorry to hear you’re still having issues. I didn’t write Lemmy and I don’t host lemmy.ml, so my knowledge is limited. The file size limit is per-instance, set in a config file on the server, and I had nothing to do with how lemmy.ml is configured. @dessalines@lemmy.ml or @nutomic@lemmy.ml might be able to shed some light.
I did some research
https://github.com/LemmyNet/lemmy/issues/3630 https://github.com/LemmyNet/lemmy-ui/issues/2529
The main point is that Pictrs handles the files and it doesn’t handle mp4 files without a video track It seems it also strips audio tracks out of mp4 files And it also rejects mp4 files with a bitrate too low.
So there is simply no way to post less than 1 megabyte audio file on here. It has to be stored externally and users have to leave the site to see it.
In other words, there will not be music on Lemmy
Also I found that admins and moderators can modify user comments and impersonate them without recourse or even notice.
Also, all up and down votes on the platform are public but admins and moderators have decided to keep this to themselves. Anyone can see them, you just need to host a lemmy instance then you can see how makes any and all votes. But they don’t want the users to see this for “drama”, they say. Of course this makes finding astroturf campaign difficult, it also makes content discovery remain a server side thing. In other words they reserve the ability to choose what you see.
All in all, really unhappy with lemmy right now, I think this place is just Reddit with new tyrants, not the decentralized haven that it was sold has. In fact many of Lemmy design fight against federation, such as the lack of community agglomeration in the default view which ensures big instances and big communities get bigger and not decentralized.
I did not expect this conclusion from just wanting to post a simple song in the music community but hey …
