[FFmpeg-devel] [PATCH V2] avfilter/zoompan: add in_time variable

Gyan Doshi ffmpeg at gyani.pro
Fri Jun 19 13:20:15 EEST 2020



On 19-06-2020 03:24 am, exwm wrote:
> Currently, the zoompan filter exposes a time variable for use in
> the zoom, x, and y expressions. This variable is perhaps better named
> out_time as it represents the timestamp in seconds of each output frame
> produced by zoompan. This patch does not rename the time variable
> to out_time as this may be a breaking change.
>
> This patch adds instead
> an in_time variable that provides access to the timestamp in seconds
> of each input frame to the zoompan filter. This helps to design zoompan
> filters that depend on the input video timestamps. For example, it makes
> it easy to zoom in instantly for only some portion of a video.
> Both the time and in_time variables have been added in the documentation
> for zoompan.

Add a short string version 'it'  as well.

Gyan


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