Reading RTSP streams from a Darwin server
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This post was updated on .
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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This post was updated on .
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.
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This post was updated on .
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.
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Now ,I can run the decode video and audio using this pipeline :
###################################################################### gst-launch --gst-debug=2 \ rtspsrc location=rtsp://192.168.1.55:554/new4.mp4 name=s ! \ gstrtpjitterbuffer latency=9000 ! rtph264depay ! \ TIViddec engineName=decode codecName=h264dec ! \ TIDmaiVideoSink displayStd=fbdev displayDevice=/dev/fb/3 \ videoStd=D1_NTSC videoOutput=COMPOSITE \ resizer=FALSE accelFrameCopy=TRUE sync=0 s. ! gstrtpjitterbuffer latency=9000 !rtpmp4gdepay ! TIAuddec engineName=decode codecName=aachedec ! osssink sync=0 ###################################################################### However , after a few seconds , the video seems to be freezed, and pops the following messages: 0:00:15.718148889 1352 0xcde70 WARN gstrtpjitterbuffer gstrtpjitterbuffe r.c:1156:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer3> Sequence number GAP dete cted: expected 64683 instead of 64684 (1 missing) 0:00:15.722077111 1352 0x73cd8 WARN gstrtpjitterbuffer gstrtpjitterbuffe r.c:1156:gst_rtp_jitter_buffer_loop:<rtpjitterbuffer0> Sequence number GAP dete cted: expected 64682 instead of 64684 (2 missing) I am using a hub to buid a LAN of mysel, so, the network is fine. But why there are so many packets lossing ? |
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