On 02-02-2025 02:31, Moritz Barsnick via ffmpeg-user wrote:
On Sat, Feb 01, 2025 at 23:11:49 +0100, Ferdi Scholten wrote:
--disable-encoder=eac3 --disable-decoder=eac3
This is why the audio is not copied. This FFmpeg package from synology is
severely crippled. Probably has to do with licensing i guess.
Is that so? I would have thought that, for using the copy "codec", only
the demuxers and possibly the parsers are required - no encoder or
decoder for the respective codec. I'd try this, but don't have the time
right now to compile.
Furthermore, the version is extremely old:
ffmpeg version 4.1.9
but _should_ be good enough for copying.
I do understand that this is software pre-configured on the Synology
NAS.
Any chance of cross-compiling or even natively compiling a newer
version of ffmpeg for/on the NAS, with the correct options?
Moritz
You are changing containers, this means the audio has to be remuxed. It
is a bit difficult to do that if the tools needed to know the structure
of the audio are not there.
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