cli
https://gstreamer.freedesktop.org/documentation/tools/gst-launch.html
sh
> gst-launch-1.0 videotestsrc pattern=snow ! videoconvert ! autovideosink
gst_parse_launch
gst-launch-1.0
風のgst-launch-1.0
風の文字列から pipeline を生成する。
c
pipeline = gst_parse_launch("videotestsrc ! autovideosink", &error);
gst_pipeline_new
https://gstreamer.freedesktop.org/documentation/gstreamer/gstpipeline.html?gi-language=c
c++
auto pipeline = gst_pipeline_new("pipeline_name");