Perfect I have installed the package that appears in the repository that could include the libswscale but does not solve the problem, is there any way to install an earlier version?

In T5556#99981, @sunnyflunk wrote:

In matching the runtime, that would be:

gstreamer-0.10 (would need 32bit)
gst-plugins-base (would need 32bit)
An old libav or ffmpeg (srt uses libav 0.8.13 as well as 32bit)