I'm new to GStreamer and I'm trying to create a pipeline to display a video and record it at the same time. I've managed to make the display part using:
ss << "filesrc location=/home/videos/video1.avi ! avidemux name=demux demux.video_0 ! mpeg4videoparse ! avdec_mpeg4 ! nvvidconv ! video/x-raw,format=I420 ! appsink name=mysink";
Also, I've read that filesink location=somepath is used for saving data into a file but I don't know how combine it with the rest of the pipeline.
So, how do I use appsink and filesink in the same pipeline?
GStreamer offers a tee element for such cases. Note however that in most cases you will want a queue after each branch of a tee to prevent deadlocks. E.g.
filesrc location=/home/videos/video1.avi ! avidemux name=demux demux.video_0 ! mpeg4videoparse ! avdec_mpeg4 ! nvvidconv ! video/x-raw,format=I420 ! tee name=mytee ! queue ! appsink name=mysink mytee. ! queue ! filesink location=out.raw