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Bug 753066 - rtpstreamdepay: No Caps set error when activating in pull mode
rtpstreamdepay: No Caps set error when activating in pull mode
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
git master
Other All
: Normal normal
: 1.5.90
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2015-07-30 17:17 UTC by Ben
Modified: 2015-08-16 13:40 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
audio capture in rtpstreampay format [16 bits packet size, RTP packet] (154.64 KB, application/octet-stream)
2015-07-30 17:17 UTC, Ben 		Details

Description Ben 2015-07-30 17:17:30 UTC 
Created attachment 308475 [details]
audio capture in rtpstreampay format [16 bits packet size, RTP packet]

gst-launch-1.0 filesrc location=audio.rtp ! "application/x-rtp-stream" ! rtpstreamdepay ! fakesink

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstRtpStreamDepay:rtpstreamdepay0: No caps set
Additional debug info:
gstbaseparse.c(2401): gst_base_parse_push_frame (): /GstPipeline:pipeline0/GstRtpStreamDepay:rtpstreamdepay0
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

Adding a queue after filesrc fixes the caps error:
gst-launch-1.0 filesrc location=audio.rtp ! queue ! "application/x-rtp-stream" ! rtpstreamdepay ! fakesink
Comment 1 Sebastian Dröge (slomo) 2015-08-04 18:01:12 UTC 
commit c9ea95481c94012cea0869efdec7ded8f81198e9
Author: Sebastian Dröge <sebastian@centricular.com>
Date:   Tue Aug 4 20:59:17 2015 +0300

    rtpstreamdepay: Only allow activation in push mode
    
    We need a proper caps event from upstream with the full RTP caps as we can't
    create caps ourselves from thin air. Fixes usage of rtpstreamdepay after e.g.
    a filesrc or any other element that supports pull mode.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=753066