[FFmpeg-user] Question on AVFoundation and importing from a DV-VCR

Colin Bitterfield colin at bitterfield.com
Sat Mar 28 18:54:14 EET 2020


I am not exactly sure what a segment muxer is. Do you have an example?
On Mar 27, 2020, 12:57 PM -0700, Carl Eugen Hoyos <ceffmpeg at gmail.com>, wrote:
> Am Fr., 27. März 2020 um 18:26 Uhr schrieb Carl Eugen Hoyos
> <ceffmpeg at gmail.com>:
> >
> > Am Fr., 27. März 2020 um 05:33 Uhr schrieb Colin Bitterfield
> > <colin at bitterfield.com>:
> >
> > > Using this command brings in a 12GB DVVIDEO files
> > >
> > > ffmpeg -hwaccel videotoolbox -hide_banner -benchmark_all -stats -loglevel error -f avfoundation -capture_raw_data true -pix_fmt 0rgb -i DV-VCR -t 600 -q 0 -c:v copy -c:a copy 'Test7.dv' -y
> >
> > (q 0 looks superfluous and misguiding)
> >
> > > The problem are:
> > >
> > > 1. The file is huge (Is there a way to auto split this with a scene detect filter?
> >
> > You cannot use a filter when you want to "codec copy", re-encoding would
> > lead to significantly smaller files.
> >
> > But you can use pipe output and cut the file, that should unproblematic
> > with dv files.
>
> And I should have mentioned that one of the segment muxers will also work.
>
> Carl Eugen
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