On 22/05/2025 16.07, Paul B Mahol wrote:
On Thu, May 22, 2025 at 8:01 PM Mark Filipak <markfilipak.i...@gmail.com>
wrote:
Hi, All,
I've tried every trick in the documentation but I can't persuade FFmpeg
CLI to convert DTS 7.1 to
AC3 5.1.
The best I get is AC3 5.0(side).
Handbrake does it, and it uses the same libraries! I went ahead and made a
minimal-resolution, MPEG2
copy just to get at the AC3 5.1.
Do you do DTS 7.1 to AC3 5.1 via FFmpeg? How do you do it?
silent = 3,214,906,938 bytes
with DTS 7.1 = 8,623,235,367 bytes
with AC3 5.1 = 3,968,811,052 bytes
Use librempeg instead:
ffmpeg -i 7_1.m2ts -af acl2cl=5.1 -vn x.ac3
Thank you, Mr. Mahol. 'acl2cl' is not documented. But I will try it.
The try will likely fail because 'librempeg' appears to be lacking in Mr. Doshi's builds. Hopefully,
I'm wrong about that.
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