On 02/06/2020 06:39 AM, Paul B Mahol wrote:
On 2/6/20, Mark Filipak <[email protected]> wrote:
On 02/06/2020 03:35 AM, Paul B Mahol wrote:
On 2/6/20, Mark Filipak <[email protected]> wrote:
The command line below creates 'foo.txt' but the file is empty (i.e.,
zero length).
Any clues why?
Because your file does not have any _frame_ metadata.
What am I missing here? The file is VTS_02_2.VOB. It contains all the
metadata that a VOB usually contains.
It contains one pack per sector. The packs are aggregated into GOPs with
I-frames and P-frames and B-frames. Each frame has a PES & MPEG2
sequence header and all the metadata. I can see them with VOBEdit.
Why can't I list the metadata with ffmpeg?
You are deeply confused. Frame metadata is not what you think it is.
You are looking for packet metadata, while frame metadata is something
completely else.
Can ffmpeg list metadata?
Yes.
Thanks, Paul.
Can ffmpeg list the metadata I'm interested in? I don't know what's in
the MPEG frame -- I didn't know there was metadata in there; I thought
it was just pixels.
I'm interested in the metadata in the MPEG2 packet. Can ffmpeg read that?
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