transcoding help for Raspberry Pi 4?

[dvdr]

(07-09-2022 17:58)simoncn Wrote:  I think the RPi4 will have enough power to handle all the above transcoding combinations but it might possibly struggle with DSD128 .dsf files.

Following up on your great advice, I have a surprising remark and a question.

- My question: why is the transcoding setting for m4a not allowing any sample rate input (like m4a(44):wav24;176 etc.)? I do get an error message in Minimserver, when I want to add that to the streaming options. Apple Lossless uses either m4a or mp4 as a container, so that imho would make sense for m4a as well. btw.: mp3(44) and mp3(48) are not allowed, as well.

- The RPi handles the transcoding up to dsd512 (!!!!) flawlessly, using ffmpeg and the following setting, that I got from forum member 'mm2'

Code:

convOut=-af aresample=resampler=soxr:precision=32

Can you imagine???
So thanks again for helping me with the list of transcoding options! I expanded it a bit, maybe it's helpful for someone out there...

Code:

flac(44):wav24;176,flac(48):wav24;192,flac(88):wav24;176,flac(96):wav24;192,flac​(176):wav24;176,flac(192):wav24;192,flac(352):wav24;176,flac(384):wav24;192,wav(​44):wav24;176,wav(48):wav24;192,wav(88):wav24;176,wav(96):wav24;192,wav(<24;176):wav24;176,wav(<24;192):wav24;192,wav(352):wav24;176,wav(384):wav24;192,dsf:wav24;176,aiff(44​):wav24;176,aiff(48):wav24;192,aiff(88):wav24;176,aiff(96):wav24;192,aiff(176):w​av24;176,aiff(192):wav24;192,mp4(44):wav24;176,mp4(48):wav24;192,mp4(88):wav24;1​76,mp4(96):wav24;192,mp4(176):wav24;176,mp4(192):wav24;192,mp4(352):wav24;176,mp​4(384):wav24;192,mp3:wav24;176,alac(44):wav24;176,alac(48):wav24;192,alac(88):wa​v24;176,alac(96):wav24;192,alac(176):wav24;176,alac(192):wav24;192,alac(352):wav​24;176,alac(384):wav24;192