[gst-devel] Re ading RTSP streams from a qtss server

[yangsb]

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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