Am 29.10.23 um 22:06 schrieb Torsten Kaiser:
On 29.10.23 20:28, Ulf Zibis wrote:
Hi,
when I use
ffprobe -show_frames INPUT
I get all frames.
But I only want some frames e.g. the first 10 or frame 100 to 109.
ffprobe doesn't seem to provide anything like -ss -t or -frames. So I assume it
always probes the whole thing.
I would suggest you cut the desired frames you need for probing to a temporary
snippet.
In Korn this would look like this:
#EXAMPLE VALUES
SOURCE="Source.mp4"
START="10.00" #for 25fps frame-precise with a 0.01 seconds resolution
FRAMES="10" # for cutting ten frames beginning with the one at 10.00 seconds
PREVIEW="TEST.mp4"
# COMMANDS
ffmpeg -y -ss $START -i $SOURCE -frames $FRAMES $PREVIEW # generate test clip
ffprobe -show_frames $PREVIEW
#probing the preview
rm $PREVIEW #to tidy up
in Korn I can catenate these lines with "&&" to a single line, so that
following commands only get executed if their predecessor(s) didn't fail.
Hope it's readable enough to translate it to your preferred coding language.
Thanks for your work!
After long seaching I've found the option "read_intervals", which does it.
-Ulf
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