Help regarding playing network stream and using SDP file.
Chuck Crisler
ccrisler at mutualink.net
Thu Jan 17 10:28:22 PST 2013
Here is an example of specifying caps. Your syntax is not right.
gst-launch v4l2src device=/dev/video0 !
'video/x-raw-yuv,width=640,height=480' ! x264enc
Here is a link to some good introductory pipelines.
http://wiki.oz9aec.net/index.php/Gstreamer_cheat_sheet
Here is a link to the linux man page for gst-launch
http://linux.die.net/man/1/gst-launch-0.10
On Thu, Jan 17, 2013 at 10:34 AM, Subodh Chiwate <subodh.austin at gmail.com>wrote:
> Hi All,
>
>
> I am new to the gstreamer world. I am facing issues while using gstreamer
> to receive
>
> a udp steam from a device.
>
> Following are the commands and the errors I got.
>
> Could some please help me with some guidance regarding the commands.
>
>
> *ATTEMPT 1: Pasting the caps on transmitter side into receiver*
>
>
>
> C:\Users\karti_000>*gst-launch udpsrc port=2000 caps=\"application/x-rtp,
> media=(*
>
> *string)video, clock-rate=(int)90000, encoding-name=(string)H264,
> sprop-parameter*
>
> *-sets=(string)\"Z0IAHqaAoD2QAA\\=\\=\\,aM44gAA\\=\", payload=(int)96,
> ssrc=(uint*
>
> *)3636518815, clock-base=(uint)2800492737, seqnum-base=(uint)18406\" !
> rtph264de*
>
> *pay ! ffdec_h264 ! autovideosink*
>
> 0:00:00.052035000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:50
>
> 8:gst_parse_element_set:[Invalid UTF-8] could not set property "caps" in
> elemen
>
> t "udpsrc0" to "\x94application/x-rtp,"
>
> 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "media" in element "udpsrc0"
>
> 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "clock-rate" in element "udpsrc0"
>
> 0:00:00.054035000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "encoding-name" in element "udpsrc0"
>
> 0:00:00.055034000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "sprop-parameter-sets" in element
> "udpsrc0"
>
>
>
> 0:00:00.056037000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "payload" in element "udpsrc0"
>
> 0:00:00.056037000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "ssrc" in element "udpsrc0"
>
> 0:00:00.057037000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "clock-base" in element "udpsrc0"
>
> 0:00:00.057037000 6828 00302F70 ERROR GST_PIPELINE
> grammar.tab.c:49
>
> 3:gst_parse_element_set: no property "seqnum-base" in element "udpsrc0"
>
> [Invalid UTF-8] WARNING: erroneous pipeline: could not set property "caps"
> in el
>
> ement "udpsrc0" to "\x94application/x-rtp,"
>
>
>
>
>
>
> **************************************************//******************************************************
>
> *ATTEMPT 2: directly playing the sdp file*
>
>
>
> C:\Users\karti_000>*gst-launch playbin2
> uri=file:///C:/Users/karti_000/s2.sdp*
>
> Setting pipeline to PAUSED ...
>
> Pipeline is live and does not need PREROLL ...
>
> Setting pipeline to PLAYING ...
>
>
>
> ** (gst-launch-0.10:5808): CRITICAL **: file
> ..\..\..\..\..\Source\gst-plugins-b
>
> ad\gst\sdp\gstsdpdemux.c: line 382: assertion `host_name' failed
>
> New clock: GstSystemClock
>
> 0:00:00.542362000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.543363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.544362000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.544362000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.545363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.546363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.546363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.547363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.547363000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.548366000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.549365000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.550368000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.550368000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.551367000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.551367000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.552368000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:00.553368000 5808 0221F948 ERROR ffmpeg .:0:: P
> sub_mb_t
>
> ype 27 out of range at 21 5
>
> 0:00:00.553368000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 21 5
>
> 0:00:00.582388000 5808 0221F948 ERROR ffmpeg .:0::
> corrupted
>
> macroblock 41 0 (total_coeff=-1)
>
> 0:00:00.582388000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 41 0
>
> 0:00:00.584388000 5808 0221F948 ERROR ffmpeg .:0::
> mb_type 73
>
> in P slice too large at 20 1
>
> 0:00:00.585389000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 20 1
>
> 0:00:00.632421000 5808 0221F948 ERROR ffmpeg .:0:: top
> block
>
> unavailable for requested intra mode at 41 0
>
> 0:00:00.632421000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 41 0
>
> 0:00:00.753506000 5808 0221F948 ERROR ffmpeg .:0::
> mb_type 46
>
> in P slice too large at 16 1
>
> 0:00:00.754506000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 16 1
>
> 0:00:00.873583000 5808 0221F948 ERROR ffmpeg .:0:: out
> of ran
>
> ge intra chroma pred mode at 11 2
>
> 0:00:00.875583000 5808 0221F948 ERROR ffmpeg .:0::
> error whil
>
> e decoding MB 11 2
>
> 0:00:00.998666000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.000673000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.001668000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.003669000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.004673000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.006671000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.008672000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.009673000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.011676000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.014683000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.016695000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.018683000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.019683000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.021681000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.022689000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.024684000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.027685000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.028691000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.030687000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.031687000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.032689000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.033691000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.034689000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.035690000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.036694000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> 0:00:01.037691000 5808 0221F948 ERROR ffmpeg .:0::
> number of
>
> reference frames exceeds max (probably corrupt input), discarding one
>
> ERROR: from element
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDeco
>
> deBin2:decodebin20/GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0: Internal data
> flow e
>
> rror.
>
> Additional debug info:
>
> ..\..\..\Source\gstreamer\libs\gst\base\gstbasesrc.c(2507):
> gst_base_src_loop ()
>
> :
> /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20
>
> /GstSDPDemux:sdpdemux0/GstUDPSrc:udpsrc0:
>
> streaming task paused, reason not-negotiated (-4)
>
> Execution ended after 1158778000 ns.
>
> Setting pipeline to PAUSED ...
>
> Setting pipeline to READY ...
>
> Setting pipeline to NULL ...
>
> Freeing pipeline ...
>
> --
> Regards
> Subodh
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
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