Restream Encoded Frame

Application Development
1

I need to grab an H.264 stream from an RtspSrc and save it without decoding. Then, I want to Restream it using a GStreamer RTSP server. I’ve set up a pipeline with appsrc -> rtph264pay for the RTSP server, but I’m encountering an error.

ERROR  rtspclient rtsp-client.c:1117:find_media: client 000001FC2A2BE600: can't prepare media
ERROR  rtspclient rtsp-client.c:3412:handle_describe_request: client 000001FC2A2BE600: no media

Save Pipeline

save
save14000×1955 2.58 MB

Restream With parsebin Pipeline

restream_with_parsebin
restream_with_parsebin4641×936 293 KB

When use parsebin, elements can’t link. padAdded_handler of parsebin not called.
What is my fault ?

3

I identified that problem was caps negotiation between appsrc and parsebin in my GStreamer pipeline. The caps were not being negotiated properly, causing the pipeline to fail.

To resolve this, I dynamically retrieved the caps from the received sample in appsink and set these caps to appsrc during media configuration. This approach resolved the issue, and the pipeline now works correctly.

This simple gist get h264 stream from rtsp and restream it without re-encoding