[FFmpeg-user] missing meta data in ffprobe output from mp4 format

[Ulf Zibis]

Am 20.10.23 um 23:37 schrieb Greg Oliver:
> On Fri, Oct 20, 2023 at 3:57 PM Ulf Zibis <Ulf.Zibis at cosoco.de> wrote:
>>> On Fri, Oct 20, 2023 at 7:19 PM Ulf Zibis <Ulf.Zibis at cosoco.de> wrote:
>>>> Hi,
>>>>
>>>> in my last post "Codec 0x21000 is not in the full list."
>>>> you can see, that also the included metadata is mostly missing in the
>>>> output of ffprobe. Why?
>>>>
>>>> When I use the same command and the same metadata file for mkv output,
>>>> beside this message all is fine:
>>>>
> I have never used ffprobe before, but I have seen countless messages
> on this left with regards to it not being closely maintained and
> recommendations to use other software to query media information.
> Possibly try mediainfo of cvlc, etc and see if you have different
> results...?
So you confirm, that "ffprobe" is buggy in case of MPEG format ?
For Matroska format it seems to work correctly. The only inconsistence is, that tag "title" is written in lower case.

But there additionally seems to be a problem with "ffmpeg", because a not requested subtitle stream was additionally added.

-Ulf