Hi, gstreamer:
Recently, I wanna play movies from a rtsp server. I installed DarwinStreamServer on my laptop and use command line:
gst-launch playbin uri="rtsp://localhost/test.mp4"
It works well. But if I use decodebin instead of playbin, error occurs:
gst-launch rtspsrc location="rtsp://localhost/test.mp4" protocols=1 name=d d. ! decodebin ! queue ! ffmpegcolorspace ! xvimagesink d. ! decodebin ! queue ! audioconvert ! alsasink
The error message is:
=========================
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /pipeline0/d/udpsrc0: Internal data flow error.
Additional debug info:
gstbasesrc.c(2240): gst_base_src_loop (): /pipeline0/d/udpsrc0:
streaming task paused, reason not-linked (-1)
Execution ended after 117342031 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
FREEING pipeline ...
==================================
I noticed sometimes decodebin works but mostly it fails. What tricks does playbin do to make it work? I skimed the source codes of playbin and found out that it also use decodebin inside.
Thanks a lot. I really appreciate your suggestions.
Eric Zhang
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