On 18.06.2021 14:50, Timo Rothenpieler wrote:
> [...]
>
> +@item detected(kind)
> +Evaluates the metadata added to frames by various detection filters.
> +Returns -1 if the respective filter has detected what it was looking
for,
> +0 otherwise.
> +
> +Possible values for the @var{kind} parameter:
> +@table @option
> +@item SILENCE (audio only)
> +Looks for metadata added by @ref{silencedetect}.
> +@item FREEZE (video only)
> +Looks for metadata added by @ref{freezedetect}.
> +@item BLACK (video only)
> +Looks for metadata added by @ref{blackdetect}.
> +@end table
> +
> @end table
If I understand that description correctly a filter line like
"aselect=detected(SILENCE)" kill keep the silence and remove the rest?
So for most use cases a wrapping not() shall be used? Adding an example
in the docs might clarify this.
I think it is a bit unfortunate that the new syntax differs from the
existing "concatdec_select" which is similar in concept. In my very
personal opinion using variables like "silence_detected" would have been
more consistent, but take this as a suggestion - not objection.
Regards,
Tobias
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
