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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");