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

[yangsb]

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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