avdec_mpeg4 ! avenc_mpeg4

[Frédéric Sallé]

Hello all,

Why this pipeline is not working:
/gst-launch-1.0 -vvv udpsrc port=11010 caps="application/x-rtp" ! 
rtpmp4vdepay ! matroskamux ! filesink location=test.mkv/

Due to:
/gstbasesrc.c(2865): gst_base_src_loop (): 
/GstPipeline:pipeline0/GstUDPSrc:udpsrc0://
//streaming task paused, reason not-negotiated (-4)//
/
While this one is ??
/gst-launch-1.0 -vvv udpsrc port=11010 caps="application/x-rtp" ! 
rtpmp4vdepay ! avdec_mpeg4 ! avenc_mpeg4 ! matroskamux ! filesink 
location=test.mkv//
/
Adding the full caps doesn't help. Nor inserting videoconvert or 
videorate ...
It seems quite weird to me to have to decode and reencode to be able to 
save the stream in a container ...

Thank you,
Frederic

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