View source for Help:Scripting

These are command-line scripts for advanced processing of DFM documents.

== Converting a PDF to a set of images ==
This is mainly useful for extracting images from a PDF slideshow submitted as a PDF, to be reused in other contexts (e.g., bulk insertion of slides into a workshop report).

<code>convert -verbose -density 300 -trim DFM_PRS_slideshow.pdf -flatten -sharpen 0x1.0 slide-%d.png</code>  

== Normalizing Zoom recordings for editing or concatenation ==
Zoom recordings may have different resolutions/screen dimensions and bitrates, depending on the computer settings of whoever is making the recording. To edit or concatenate recordings, re-encode as follows:

<code>ffmpeg -ss 00:00:29 -i <input>.mp4 -t 36:35.0 -avoid_negative_ts 1 -ac 1 -b:a 192k -ar 44100 -vf pad=width=1600:height=900:color=black <output>.mp4</code>

In the above, use <code>-ss HH:MM:ss</code> for the start time, and <code>-t HH:MM:ss</code> for the duration if you want to trim the start and end of the recording.
[[Category:Project management]]