Den 30.06.2025 22:28, skrev BloodMan:
Hello Terje,
W dniu 2025-06-30 o 21:44, Terje J. Hanssen pisze:
> Seemingly the most important missing part of the documentation's
example
> code line
> ffmpeg -f iec61883 -i auto -dvbuffer 100000 out.mpg
> is "-c copy"
Hmm... nope ;p
"-c copy" do NOT convert at all, so you always get source codec on
output (when container support that codec, of course).
That was also the purpose, grab and record from hdv camcorder to hdv
file without transcoding.
AND
.mpg container does NOT support MPEG-2 video (only MPEG-1), that's why
in the previous example ffmpeg converted mpeg2video to mpeg1video
Well, MPEG-1 or MPEG-2 (dvd.mpg)
https://www.adobe.com/creativecloud/file-types/video/container/mpg.html#what-is-an-mpg-file
AND
the "default" container that supports mpeg2video is .m2ts (then .ts)
According to the HDV specification the File extension is .m2t (generally)
https://en.wikipedia.org/wiki/HDV#Specifications
dvgrab uses .m2t for hdv default, and also a HDV HDD recorder like
Datavideo DN-300 uses .m2t
According to Steve Mullens V1-FX7 Handbook:
When either is captured, the stream should have an .m2t file extension;
but it may have an .mpg extension.
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