[gst-devel] Re ading RTSP streams from a qtss server
yangsb
yangsb05 at gmail.com
Fri May 8 06:40:52 CEST 2009
I have read this post :
http://www.nabble.com/-quicktime-flux--how-to-use-rtpxqtdepay---td16055861.html#a16055861
But I found that Wim Taymans 's pipeline :
gst-launch rtspsrc
location=rtsp://a2047.v1413b.c1413.g.vq.akamaistream.net/5/2047/1413/1_h264_110/1a1a1ae656c632970267e04ebd3196c428970e7ce857b81c4aab1677e445aedc3fae1b4a7bafe013/08770365506i_2_220.mov
name=s ! rtpxqtdepay ! ffdec_h264 ! xvimagesink s. ! rtpmp4gdepay ! faad !
alsasink
does not work on my ubuntu 8.04.
The pipeline pops several errors :
###########
0:00:00.433859872 10875 0x81f2568 WARN basesrc
gstbasesrc.c:2193:gst_base_src_loop:<udpsrc2> error: Internal data flow
error.
0:00:00.433897309 10875 0x81f2568 WARN basesrc
gstbasesrc.c:2193:gst_base_src_loop:<udpsrc2> error: streaming task paused,
reason not-linked (-1)
###########
However , the fact that totem on ubuntu 8.04 can play it fine
really confused me .....
Best regards.
yangsb wrote:
>
> If I try a new.mp4 with h264 video and aac audio ,
> I found that totem on my Ubuntu can recieve and play the mp4 file .
> How can I get some infomation from totem to write my own pipeline ?
>
>
> Thanks .
> Best regards.
>
>
> yangsb wrote:
>>
>> I installed a qtss server on my Ubuntu 8.04.
>> I tried to receive the video and audio from another machine.
>> I find a mp4 file named test.mp4 for testing , which contains mpeg4 video
>> and mp3 audio.
>>
>> I can receive and display the video by this pipeline :
>> ##########################
>> gst-launch --gst-debug=2 \
>> rtspsrc latency=300 location=rtsp://192.168.1.56:554/test.mp4 ! \
>> ! rtpmp4vdepay ! queue ! \
>> TIViddec engineName=decode codecName=mpeg4dec ! \
>> TIDmaiVideoSink displayStd=fbdev displayDevice=/dev/fb/3 \
>> videoStd=D1_NTSC videoOutput=COMPOSITE \
>> resizer=FALSE accelFrameCopy=TRUE sync=false
>> #########################
>>
>>
>> Then I want to receive audio , I tried this pipeline :
>>
>> ##########################
>> gst-launch --gst-debug=2 \
>> rtspsrc latency=300 location=rtsp://192.168.1.56:554/test.mp4 ! \
>> rtpmpadepay ! queue ! \
>> mad ! osssink sync=false
>> ##########################
>> However , I can not get the audio , with the following errors:
>>
>> ###########################
>> Setting pipeline to PAUSED ...
>> Pipeline is live and does not need PREROLL ...
>> Setting pipeline to PLAYING ...
>> 0:00:01.532993408 1342 0x15090 WARN bin
>> gstbin.c:2083:do_
>> bin_latency:<pipeline0> failed to query latency
>> 0:00:01.586082296 1342 0xdbef0 WARN rtpbin
>> gstrtpbin.c:2012:
>> new_ssrc_pad_found:<rtpbin0> Caps have no clock rate application/x-rtp
>> from pad
>> rtpssrcdemux1:src_705405174
>> 0:00:01.590228408 1342 0xdbef0 WARN rtpbin
>> gstrtpbin.c:986:g
>> st_rtp_bin_associate:<rtpbin0> we have no clock-base
>> 0:00:01.622647000 1342 0xc30c0 WARN rtpbin
>> gstrtpbin.c:2012:
>> new_ssrc_pad_found:<rtpbin0> Caps have no clock rate application/x-rtp
>> from pad
>> rtpssrcdemux0:src_618819072
>> 0:00:01.626482148 1342 0xc30c0 WARN rtpbin
>> gstrtpbin.c:986:g
>> st_rtp_bin_associate:<rtpbin0> we have no clock-base
>> New clock: GstSystemClock
>> 0:00:01.970068296 1342 0x50758 WARN basesrc
>> gstbasesrc.c:2234
>> :gst_base_src_loop:<udpsrc0> error: Internal data flow error.
>> 0:00:01.971507852 1342 0x50758 WARN basesrc
>> gstbasesrc.c:2234
>> :gst_base_src_loop:<udpsrc0> error: streaming task paused, reason
>> not-linked (-
>> 1)
>> 0:00:01.974688556 1342 0xc34f0 WARN basesrc
>> gstbasesrc.c:2234
>> :gst_base_src_loop:<udpsrc2> error: Internal data flow error.
>> 0:00:01.975904482 1342 0xc34f0 WARN basesrc
>> gstbasesrc.c:2234
>> :gst_base_src_loop:<udpsrc2> error: streaming task paused, reason
>> not-linked (-
>> 1)
>> ERROR: from element
>> /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSrc:udpsrc
>> 2: Internal data flow error.
>> Additional debug info:
>> gstbasesrc.c(2234): gst_base_src_loop ():
>> /GstPipeline:pipeline0/GstRTSPSrc:rts
>> psrc0/GstUDPSrc:udpsrc2:
>> streaming task paused, reason not-linked (-1)
>> Execution ended after 315040185 ns.
>> Setting pipeline to PAUSED ...
>> Setting pipeline to READY ...
>> Setting pipeline to NULL ...
>> FREEING pipeline ...
>>
>> Does the depayloader " rtpmpadepay " can not be used in this situation ?
>> Should I use a depayloader specially for mp4 format ?
>>
>> Hope to get some advice .
>>
>> Thanks.
>> Best regards.
>>
>
>
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