如何为gstreamer的x264enc元素设置最小密钥间隔？

Question

I'm working on a gstreamer application that uses x264enc element. According to the document below, there is no property to specify minimum key interval while there's key-int-max . https://thiblahute.github.io/GStreamer-doc/x264-1.0/index.html?gi-language=c

On the other hand, there's --min-keyint property in FFmpeg option. https://sites.google.com/site/linuxencoding/x264-ffmpeg-mapping

How to set minimum key interval to x264enc element of gstreamer?

Thanks in advance.

Answer 1

You may try the option-string property in x264enc :

option-string       : String of x264 options (overridden by element properties)
                        flags: readable, writable
                        String. Default: ""

This basically hands of options to libx264 . Unfortunately I forgot the syntax that you need to use here.. Could have been option-string=min-keyint=x but perhaps double checking the x264enc element's code should give some more hints here.