splitmuxsink & mpegtsmux

[Brian.Ashton at gd-ms.uk]

Hello,

I am having basic trouble using the two elements splitmuxsink & mpegtsmux in a C program.  Any help would be greatly appreciated.

[I have compiled and installed gstreamer 1.12.3 & plugins (base, libav, good, bad, ugly) - previously tried unsuccessfully with 1.10.4]

Checking documentation, searching the gstreamer-devel lists and googling, have got me so far...

Data is produced with line 1 - and I'm trying to replicate (the correctly working) line 2, in code:

	 (1) gst-launch-1.0 -v -e  videotestsrc  ! x264enc  ! rtph264pay  ! udpsink host=127.0.0.1 port=5004

	 (2) gst-launch-1.0 -e udpsrc buffer-size=524288 port=5004 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! rtph264depay ! queue ! splitmuxsink muxer=mpegtsmux max-size-time=10000000000 location=test%05d.ts

Synopsis: 
	Linked: udpsrc--> rtph264depay-->queue, with gst_element_link()

	Linked pads: splitmuxsink-->queue, with gst_element_get_request_pad(), gst_element_get_compatible_pad() & gst_pad_link()

	Muxer property of splitmuxsink, set, thus: g_object_set (data.splitmuxsink, "muxer", data.mpegtsmux, NULL);

Full code, here: https://pastebin.com/xLcdhXTE

Error:
	Error received from element udpsrc-element: Internal data stream error.
	Debugging information: gstbasesrc.c(2939): gst_base_src_loop (): /GstPipeline:test-pipeline/GstUDPSrc:udpsrc-element:
	streaming stopped, reason not-negotiated (-4)

I'm confused by the apparent problem at the front of the pipeline - i.e. udpsrc; and TBH the debug info didn't enlighten me. I'm new to gstreamer.

I don't believe I need to link the pads from splitmuxsink-->mpegtsmux ... but I tried, in case. This makes no difference.

I also tried adding mpegtsmux to the bin (line 52); again, no difference.

Thanks in advance.

Brian.
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