[gst-devel] rtspsrc plugin: udpsrc Internal data flow error

Wed Jul 16 07:14:54 CEST 2008

After setting GST_DEBUG=3, I found those following error information:

......................................................................................................
0:00:02.830674461 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtpptdemux1>[00m adding pad 'src_96'
0:00:02.834983692 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1769:gst_pad_link_prepare:[00m
trying to link rtpptdemux1:src_96 and recv_rtp_src_0_547059553_96:proxypad6
0:00:02.836655076 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1906:gst_pad_link:[00m linked
rtpptdemux1:src_96 and recv_rtp_src_0_547059553_96:proxypad6, successful
0:00:02.838054769 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtpbin0>[00m adding pad
'recv_rtp_src_0_547059553_96'
0:00:02.842733230 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1769:gst_pad_link_prepare:[00m
trying to link rtpbin0:recv_rtp_src_0_547059553_96 and
recv_rtp_src_0_547059553_96:proxypad7
0:00:02.845067076 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1906:gst_pad_link:[00m linked
rtpbin0:recv_rtp_src_0_547059553_96 and
recv_rtp_src_0_547059553_96:proxypad7, successful
0:00:02.846058153 [336m 2063[00m 0x102920 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtspsrc0>[00m adding pad
'recv_rtp_src_0_547059553_96'
0:00:02.850103692 [336m 2063[00m 0xe9d08 [33;01mWARN [00m
[00m           rtpsource rtpsource.c:809:calculate_jitter:[00m cannot get
current time
0:00:02.855280615 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtpptdemux0>[00m adding pad 'src_97'
0:00:02.859652307 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1769:gst_pad_link_prepare:[00m
trying to link rtpptdemux0:src_97 and recv_rtp_src_1_1101393272_97:proxypad8
0:00:02.861467999 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1906:gst_pad_link:[00m linked
rtpptdemux0:src_97 and recv_rtp_src_1_1101393272_97:proxypad8, successful
0:00:02.862773846 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtpbin0>[00m adding pad
'recv_rtp_src_1_1101393272_97'
0:00:02.867528616 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1769:gst_pad_link_prepare:[00m
trying to link rtpbin0:recv_rtp_src_1_1101393272_97 and
recv_rtp_src_1_1101393272_97:proxypad9
0:00:02.870068923 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m            GST_PADS gstpad.c:1906:gst_pad_link:[00m linked
rtpbin0:recv_rtp_src_1_1101393272_97 and
recv_rtp_src_1_1101393272_97:proxypad9, successful
0:00:02.871187077 [336m 2063[00m 0xd3d48 [32;01mINFO [00m
[00;01;37;41m    GST_ELEMENT_PADS
gstelement.c:641:gst_element_add_pad:<rtspsrc0>[00m adding pad
'recv_rtp_src_1_1101393272_97'
0:00:02.874814770 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2148:gst_element_continue_state:<udpsrc0>[00m completed state
change to PLAYING
0:00:02.875670462 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2161:gst_element_continue_state:<udpsrc0>[00m posting
state-changed PAUSED to PLAYING
0:00:02.878230461 [336m 2063[00m 0xd2cd0 [33;01mWARN [00m
[00m           rtpsource rtpsource.c:809:calculate_jitter:[00m cannot get
current time
0:00:02.879399999 [336m 2063[00m 0xd2cd0 [32;01mINFO [00m
[00m             basesrc gstbasesrc.c:2114:gst_base_src_loop:<udpsrc0>[00m
pausing after gst_pad_push() = not-linked
0:00:02.880337538 [336m 2063[00m 0xd2cd0 [33;01mWARN [00m
[00m             basesrc gstbasesrc.c:2165:gst_base_src_loop:<udpsrc0>[00m
error: Internal data flow error.
0:00:02.881175692 [336m 2063[00m 0xd2cd0 [33;01mWARN [00m
[00m             basesrc gstbasesrc.c:2165:gst_base_src_loop:<udpsrc0>[00m
error: streaming task paused, reason not-linked (-1)
0:00:02.882491384 [336m 2063[00m 0xd2cd0 [32;01mINFO [00m
[00;01;31;47m    GST_ERROR_SYSTEM
gstelement.c:1674:gst_element_message_full:<udpsrc0>[00m posting message:
Internal data flow error.
0:00:02.884321230 [336m 2063[00m 0xd2cd0 [32;01mINFO [00m
[00;01;31;47m    GST_ERROR_SYSTEM
gstelement.c:1697:gst_element_message_full:<udpsrc0>[00m posted error
message: Internal data flow error.
0:00:02.886078769 [336m 2063[00m 0xe9d08 [33;01mWARN [00m
[00m           rtpsource rtpsource.c:809:calculate_jitter:[00m cannot get
current time
0:00:02.876917231 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstbin.c:2191:gst_bin_change_state_func:<rtspsrc0>[00m child 'udpsrc0'
changed state to 4(PLAYING) successfully
0:00:02.888022461 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2148:gst_element_continue_state:<rtspsrc0>[00m completed state
change to PLAYING
0:00:02.888841845 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2161:gst_element_continue_state:<rtspsrc0>[00m posting
state-changed PAUSED to PLAYING
0:00:02.889984922 [336m 2063[00m 0xe9d08 [32;01mINFO [00m
[00m             basesrc gstbasesrc.c:2114:gst_base_src_loop:<udpsrc2>[00m
pausing after gst_pad_push() = not-linked
0:00:02.890959999 [336m 2063[00m 0xe9d08 [33;01mWARN [00m
[00m             basesrc gstbasesrc.c:2165:gst_base_src_loop:<udpsrc2>[00m
error: Internal data flow error.
0:00:02.891727076 [336m 2063[00m 0xe9d08 [33;01mWARN [00m
[00m             basesrc gstbasesrc.c:2165:gst_base_src_loop:<udpsrc2>[00m
error: streaming task paused, reason not-linked (-1)
0:00:02.892926153 [336m 2063[00m 0xe9d08 [32;01mINFO [00m
[00;01;31;47m    GST_ERROR_SYSTEM
gstelement.c:1674:gst_element_message_full:<udpsrc2>[00m posting message:
Internal data flow error.
0:00:02.894355076 [336m 2063[00m 0xe9d08 [32;01mINFO [00m
[00;01;31;47m    GST_ERROR_SYSTEM
gstelement.c:1697:gst_element_message_full:<udpsrc2>[00m posted error
message: Internal data flow error.
0:00:02.896006461 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2148:gst_element_continue_state:<rtpxqtdepay0>[00m completed
state change to PLAYING
0:00:02.896863692 [336m 2063[00m 0x130f0 [32;01mINFO [00m
[00;01;31m          GST_STATES
gstelement.c:2161:gst_element_continue_state:<rtpxqtdepay0>[00m posting
state-changed PAUSED to PLAYING
GST_MESSAGE_ERROR
udpsrc2 error: Internal data flow error.
Debug: gstbasesrc.c(2165): gst_base_src_loop (): /pipeline/rtspsrc0/udpsrc2:
streaming task paused, reason not-linked (-1)
      NULL
................................................................................................

the main error is "not-linked".
I'm wondering why there generates two recv_rtp_src:
recv_rtp_src_1_1101393272_97 and recv_rtp_src_0_547059553_96. It seems that
with one recv_rtp_src, the program can work fine.

On Wed, Jul 16, 2008 at 10:56 AM, Ting Wang <wangting at gmail.com> wrote:

> Hello,
>
> I'm using rtspsrc, the command:
>
> /mnt/Temp/felix_tmp/output # ../bin/gst-launch rtspsrc location=rtsp://
> 10.38.38.150/sample_100kbit.mp4 ! fakesink
>
> works OK, and my streaming server is up and in good condition, but when
> issuing the command:
>
> /mnt/Temp/felix_tmp/output # ../bin/gst-launch rtspsrc location=rtsp://
> 10.38.38.150/sample_100kbit.mp4 ! gstrtpjitterbuffer ! rtph264depay !
> h264dec ! overlay2sink
>
> I got the following error message:
>
> Setting pipeline to PAUSED ...
> Pipeline is live and does not need PREROLL ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> ERROR: from element /pipeline0/rtspsrc0/udpsrc2: Internal data flow error.
> Additional debug info:
> gstbasesrc.c(2165): gst_base_src_loop (): /pipeline0/rtspsrc0/udpsrc2:
> streaming task paused, reason not-linked (-1)
> Execution ended after 216414462 ns.
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> overlay2 unmap error!
> FREEING pipeline ...
>
> What could have caused "Internal data flow error"?  Would someone please
> give me some advice? Thank you very much :)
>
> Best regards
>
> Felix
>
>
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