On Sun, 12 Nov 2023 20:17:03 +0100 Diederik de Haas <didi.debian@cknow.org> wrote:
> On 15 Dec 2022 16:05:03 +0100 Matthias Urlichs <smurf@smurf.noris.de> wrote:
> > Package: ffmpeg
> > Version: 7:5.1.2-1
> >
> > $ ffprobe -of json ./01.ogg >/tmp/ff.stdout 2>/tmp/ff.stderr
> > $ cat /tmp/ff.stderr
> > [only header, but no json output]
> > $ cat /tmp/ff.stdout
> > {
> >
> > }
> >
> > I'm fairly sure that this is not the intended behavior.
> >
> > Upstream says that this works for them.
> > https://trac.ffmpeg.org/ticket/10104
>
> I can reproduce your findings, but ...
>
> $ ffprobe -hide_banner -of json Critical.ogg
> {
> Input #0, ogg, from 'Critical.ogg':
> Duration: 00:00:00.63, start: 0.000000, bitrate: 129 kb/s
> Stream #0:0: Audio: vorbis, 48000 Hz, mono, fltp, 86 kb/s
>
> }
> $ ffprobe -hide_banner -of json Critical.ogg 2>/dev/null
> {
>
> }
>
> So it looks like `2>/dev/null` 'hides' the output.
> I don't know if without it, is valid json though.
> Using 'xml' as output_format gives an interesting result ...
Hi,
Looking at the docs, you can use -of or -print_format like follows for a nice json file.
ffprobe -v quiet -of json -show_format -show_streams "Critical.ogg" > "Critical.ogg.json"
Your needs may require some changes.
Regards
Phil
--
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