Thanks for the suggestions. Unfortunately they didn't have any noticeable effect, and the decodebin couldn't find a the demuxer ('A Digital Video (DV) System Stream demuxer plugin is required to play this stream, but not installed' error).<br> <br>I also tried setting the lowres property of ffdec_dvvideo to 1/4 size to see if that would make a difference, but again, no luck, which leads me to believe that it's not a problem with decoding the stream.<br><br> It's just a shame there's not a windows port of libdv, otherwise I could try building dvdemux. I don't know if there's anything else I could try?<br><br>Phil<br><br><div class="gmail_quote">2009/6/26 Julien Isorce <span dir="ltr"><<a href="mailto:julien.isorce@gmail.com" target="_blank">julien.isorce@gmail.com</a>></span><br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">ok so your firewire camera only supports systemstream=true.<br><br>try with the default width, height and framerate, and without deinterlacing:<br> gst-launch-0.10 dshowvideosrc ! "video/x-dv, systemstream=true" ! ffdemux_dv ! ffdec_dvvideo ! ffmpegcolorspace ! directdrawsink<br><br>If still low fps, you could try to set lower width, height and framerate, or qdd a queue before ffmpegcolorspace.<br><br>You could also try:<br><br>gst-launch-0.10 dshowvideosrc ! "video/x-dv, systemstream=true" ! decodebin ! ffmpegcolorspace ! directdrawsink<br> and<br>gst-launch-0.10 dshowvideosrc ! decodebin ! ffmpegcolorspace ! directdrawsink<br><br>About the crash I think it came from: format=dvsd<br>the right way is: format=(fourcc)dvsd<div><div></div><div><br><br> Julien<br><br><div class="gmail_quote"> 2009/6/26 Phil Rendell <span dir="ltr"><<a href="mailto:philrendell@gmail.com" target="_blank">philrendell@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <br><br> <div class="gmail_quote"><div>2009/6/26 Julien Isorce <span dir="ltr"><<a href="mailto:julien.isorce@gmail.com" target="_blank">julien.isorce@gmail.com</a>></span><br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Forgot this problem then we will use true and false, instead of 0 and 1. Sorry for waste of time.</blockquote> <div> </div> <div>No problem - without your help I would be completely stuck and end up being forced to do something drastic like hunt around in the source code before giving up!</div><div> <div> </div> <div> </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Phil, can you tell me if <br>gst-launch-0.10.exe dshowvideosrc ! "video/x-dv, systemstream=false, width=640, height=480, framerate=10" ! fakesink<br> leads to the same result as true ?</blockquote> <div> </div> </div><div>No, it doesn't. It gives me the usual link error:</div> <div> </div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=false, width=640, height=480, framerate=30" ! fakesink</div><div> <div>WARNING: erroneous pipeline: could not link dshowvideosrc0 to fakesink0</div> <div> </div> <div> </div> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">About the screenshot. I can see that only the pin00 can be handled by dshowvideosrc because it's<div> <br>MEDIATYPE_Video and MEDIASUBTYPE_dvsd<br> but unfortunatelly grapedit does not tell us if it's FORMAT_DvInfo (case systemstream=true)<br>or FORMAT_VideoInfo (case systemstream=false)<br>About the warnings, do not care about it, it seems that granularityVideoWidth/Height are not set by your camera driver.<br> Or has no sense in case of systemstream=true.</div></blockquote> <div> </div> <div>Ok, thanks.</div><div> <div> </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Anyway, for now I just do not know how to decode or render a video/x-dv, systemstream=true.<br> I am sure someone else knows ?</blockquote> <div> </div> </div><div>Good idea with the ffdemux_dv. The command you suggested didn't quite work, but once I added the dv decoder you suggested in a previous email and added a deinterlacer I managed to get something to display, although I ended up with a pretty bad 0.5-1 fps. Could I be doing something wrong?</div> <div> </div> <div>Thanks,</div> <div> </div> <div>Phil</div> <div> </div> <div> </div> <div>Without the decoder (runs straight through with no visual output):</div> <div> </div> <div>D:\rendell_p\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=true, width=720, height=576, framerate=25" ! ffdemux_dv ! ffmpegcolorspace ! directdrawsink<br>Setting pipeline to PAUSED ...</div> <div>** (gst-launch-0.10:2500): WARNING **: your desired video size is not valid : 720 mod 1244160 !=0</div> <div>** (gst-launch-0.10:2500): WARNING **: your desired video size is not valid : 576 mod 1577311108 !=0</div> <div>/GstPipeline:pipeline0/GstDshowVideoSrc:dshowvideosrc0.GstPad:src: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<div><br>Pipeline is live and does not need PREROLL ...<br> Setting pipeline to PLAYING ...<br>New clock: GstSystemClock<br></div>/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-dv,systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br> ERROR: from element /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0: Internal data stream error.<br>Additional debug info:<br>..\..\ext\ffmpeg\gstffmpegdemux.c(1456): gst_ffmpegdemux_loop (): /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0:<br> streaming stopped, reason not-linked<br>Execution ended after 187550000 ns.<br>Setting pipeline to PAUSED ...<br>Setting pipeline to READY ...<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:audio_01: caps = NULL<br> /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:audio_00: caps = NULL<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:video_00: caps = NULL<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:sink: caps = NULL<br> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = NULL<br>/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = NULL<br>/GstPipeline:pipeline0/GstDshowVideoSrc:dshowvideosrc0.GstPad:src: caps = NULL<br> Setting pipeline to NULL ...<br>FREEING pipeline ...</div> <div> </div> <div> </div> <div>With the decoder and deinterlacing (NOTE: there are no errors until I close the window):</div> <div> </div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=true, width=720, height=576, framerate=25" ! ffdemux_dv ! ffdec_dvvideo ! ffdeinterlace ! ffmpegcolorspace ! directdrawsink<br> Setting pipeline to PAUSED ...</div> <div>** (gst-launch-0.10:432): WARNING **: your desired video size is not valid : 720 mod 1244160 !=0</div> <div>** (gst-launch-0.10:432): WARNING **: your desired video size is not valid : 576 mod 1577311108 !=0</div> <div>/GstPipeline:pipeline0/GstDshowVideoSrc:dshowvideosrc0.GstPad:src: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<div><br>Pipeline is live and does not need PREROLL ...<br> Setting pipeline to PLAYING ...<br>New clock: GstSystemClock<br></div>/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-dv,systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)720, height=(int)576, framerate=(int)25<br> /GstPipeline:pipeline0/ffdec_dvvideo:ffdec_dvvideo0.GstPad:sink: caps = video/x-dv, width=(int)720, height=(int)576, framerate=(fraction)25/1, systemstream=(boolean)false, format=(fourcc)I420<br>/GstPipeline:pipeline0/ffdec_dvvideo:ffdec_dvvideo0.GstPad:src: caps = video/x-raw-yuv, width=(int)720, height=(int)576, framerate=(fraction)25/1, format=(fourcc)I420<br> /GstPipeline:pipeline0/GstFFMpegDeinterlace:ffmpegdeinterlace0.GstPad:src: caps= video/x-raw-yuv, width=(int)720, height=(int)576, framerate=(fraction)25/1, format=(fourcc)I420<br>/GstPipeline:pipeline0/GstFFMpegDeinterlace:ffmpegdeinterlace0.GstPad:sink: caps = video/x-raw-yuv, width=(int)720, height=(int)576, framerate=(fraction)25/1, format=(fourcc)I420<br> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = video/x-raw-rgb, width=(int)720, height=(int)576, framerate=(fraction)25/1, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216<br> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = video/x-raw-yuv, width=(int)720, height=(int)576, framerate=(fraction)25/1, format=(fourcc)I420<br>/GstPipeline:pipeline0/GstDirectDrawSink:directdrawsink0.GstPad:sink: caps = video/x-raw-rgb, width=(int)720, height=(int)576, framerate=(fraction)25/1, bpp=(int)32, depth=(int)24, endianness=(int)4321, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216<br> ERROR: from element /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0: Internal data stream error.<br>Additional debug info:<br>..\..\ext\ffmpeg\gstffmpegdemux.c(1456): gst_ffmpegdemux_loop (): /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0:streaming stopped, reason error<br> Execution ended after 6375163000 ns.<br>Setting pipeline to PAUSED ...<br>Setting pipeline to READY ...<br>/GstPipeline:pipeline0/GstDirectDrawSink:directdrawsink0.GstPad:sink: caps = NULL<br>/GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:src: caps = NULL<br> /GstPipeline:pipeline0/GstFFMpegCsp:ffmpegcsp0.GstPad:sink: caps = NULL<br>/GstPipeline:pipeline0/GstFFMpegDeinterlace:ffmpegdeinterlace0.GstPad:src: caps= NULL<br>/GstPipeline:pipeline0/GstFFMpegDeinterlace:ffmpegdeinterlace0.GstPad:sink: caps = NULL<br> /GstPipeline:pipeline0/ffdec_dvvideo:ffdec_dvvideo0.GstPad:src: caps = NULL<br>/GstPipeline:pipeline0/ffdec_dvvideo:ffdec_dvvideo0.GstPad:sink: caps = NULL<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:audio_01: caps = NULL<br> /GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:audio_00: caps = NULL<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:video_00: caps = NULL<br>/GstPipeline:pipeline0/ffdemux_dv:ffdemux_dv0.GstPad:sink: caps = NULL<br> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = NULL<br>/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = NULL<br>/GstPipeline:pipeline0/GstDshowVideoSrc:dshowvideosrc0.GstPad:src: caps = NULL<br> Setting pipeline to NULL ...<br>FREEING pipeline ...</div><div><div></div><div> <div> </div> <div> </div> <div> </div> <div> </div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;"><span></span><br><font color="#888888"><br>Julien<br><br><br><br><br></font> <div class="gmail_quote"> <div> <div></div> <div>2009/6/26 Phil Rendell <span dir="ltr"><<a href="mailto:philrendell@gmail.com" target="_blank">philrendell@gmail.com</a>></span><br></div></div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div> <div></div> <div><br> <div class="gmail_quote">2009/6/26 Julien Isorce <span dir="ltr"><<a href="mailto:julien.isorce@gmail.com" target="_blank">julien.isorce@gmail.com</a>></span> <div><br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br> <div class="gmail_quote">2009/6/26 Phil Rendell <span dir="ltr"><<a href="mailto:philrendell@gmail.com" target="_blank">philrendell@gmail.com</a>></span> <div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br> <div class="gmail_quote"> <div>Sorry, no joy with this. Both complained about an erroneous pipeline. I don't think this could be the same error as before with feeding dshowvideosrc into ffmpegcolorspace, as if I remover the systemstream property, or set it to either true or false, gst-launch crashes. Setting it to anything else appears to cause the erroneous pipeline error.</div> <div> </div> <div> D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=0" ! fakesink<br>WARNING: erroneous pipeline: could not link dshowvideosrc0 to fakesink0</div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=1" ! fakesink<br>WARNING: erroneous pipeline: could not link dshowvideosrc0 to fakesink0</div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=2" ! fakesink<br>WARNING: erroneous pipeline: could not link dshowvideosrc0 to fakesink0</div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! fakesink<br>Setting pipeline to PAUSED ...</div> <div><Crash></div> <div>D:\Camera\Common\GStreamer\bin></div></div></blockquote></div> <div><br>I am not sure t follow you. You said "as if I remover the systemstream property, or set it to either true or false"<br>but you got a link error with "video/x-dv, systemstream=1". Then a crash ?<br> </div></div></blockquote></div> <div><br>Sorry, I probably should have laid that out clearer. I actually executed 4 commands there - one for systemstream=0, one for systemstream=1, one for systemstream=2 and the other as before.<br><br>If I do a gst-inspect on dshowvideosrc I can see that systemstream is set to true in one case and false in another. No matter what I set it to I always got a crash. However, now when I execute 'gst-launch dshowvideosrc ! "video/x-dv, systemstream=true" ! fakesink' I get a lot of console output, which I assume means everything works fine. I'm really not sure what I'm doing differently now though.<br> <br></div> <div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="gmail_quote"> <div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="gmail_quote"> <div></div> <div>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, format=dvsd, width=640, height=480, framerate=10" ! fakesink<br>Setting pipeline to PAUSED ...</div> <div>** (gst-launch-0.10:2448): WARNING **: your desired video size is not valid : 640 mod 1244160 !=0</div> <div><br>** (gst-launch-0.10:2448): WARNING **: your desired video size is not valid : 480 mod 1577311108 !=0<br><Crash> <br></div></div></blockquote></div> <div><br>Could you try to add systemstream property as following:<br><br>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, format=dvsd, width=640, height=480, framerate=10, systemstream=1" ! fakesink<br>and<br> gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, format=dvsd, width=640, height=480, framerate=10, systemstream=0" ! fakesink<br></div> <div></div></div></blockquote></div> <div><br>I think my attempts at experimenting are a little bit of a red herring. gst-launch crashes whenever I pass in the format argument. If I run gst-launch without this property set I still get the warning about the desired video size being invalid and the same type of console output I experienced just setting the caps to "video/x-dv, systemstream=true":<br> <br>D:\Camera\Common\GStreamer\bin>gst-launch-0.10.exe -v dshowvideosrc ! "video/x-dv, systemstream=true, width=640, height=480, framerate=10" ! fakesink<br>Setting pipeline to PAUSED ...<br><br>** (gst-launch-0.10:3556): WARNING **: your desired video size is not valid : 640 mod 1244160 !=0<br> <br>** (gst-launch-0.10:3556): WARNING **: your desired video size is not valid : 480 mod 1577311108 !=0<br><br>/GstPipeline:pipeline0/GstDshowVideoSrc:dshowvideosrc0.GstPad:src: caps = video/x-dv, systemstream=(boolean)true, width=(int)640, height=(int)480, framerate=(int)10<br> Pipeline is live and does not need PREROLL ...<br>Setting pipeline to PLAYING ...<br>New clock: GstSystemClock<br>/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-dv, systemstream=(boolean)true, width=(int)640, height=(int)480, framerate=(int)10<br> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)640, height=(int)480, framerate=(int)10<br>/GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps = video/x-dv, systemstream=(boolean)true, width=(int)640, height=(int)480, framerate=(int)10<br> /GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "preroll *******"<br>/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "event ******* E(type: 102, GstEventNewsegment, update=(boolean)false, rate=(double)1, applied-rate=(double)1, format=(GstFormat)GST_FORMAT_BYTES, start=(gint64)0, stop=(gint64)-1, position=(gint64)0;) 013379C0"<br> /GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain ******* <(144000 bytes, timestamp: 0:00:00.078125000, duration: 0:00:00.040000000, offset: -1, offset_end: -1, flags: 32) 044D3320"<br>/GstPipeline:pipeline0/GstFakeSink:fakesink0: last-message = "chain ******* <(144000 bytes, timestamp: 0:00:00.125000000, duration: 0:00:00.040000000, offset: -1, offset_end: -1, flags: 0) 044D3378"<br> ...<br><br>Again, it doesn't appear to work when I set systemstream to 0, 1, or 2, only booleans.<br><br>For some reason when I execute 'gst-launch dshowvideosrc ! "video/x-dv, systemstream=true, width=640, height=480, framerate=10" ! ffdec_dvvideo ! directdrawsink' I get the link error saying that it cannot link dshowvideosrc0 to ffdec_dvvideo0. Could this be something to do with the format parameter being missing?<br> </div> <div> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="gmail_quote"> <div><br>The thing I know is that dshowvideosrc implementation goes in a wrong way in case of "video/x-dv, systemstream=1". <br>I mean it uses FORMAT_VideoInfos fields while it should use FORMAT_DvInfo fields.<br> Even if I have no dv camera I could try something but <br>first I really have to know if it's systemstream=0 or 1.</div></div></blockquote></div> <div>You probably don't need it now, but I've attached a screenshot of the filter dialog in graphedit, which might be able to tell you which systemstream is being used.<br><br></div></div>Thanks,<br><font color="#888888"><br> Phil<br></font><br></div></div> <div>------------------------------------------------------------------------------<br><br>_______________________________________________<br>gstreamer-devel mailing list<br><a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">gstreamer-devel@lists.sourceforge.net</a><br> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br><br></div></blockquote></div><br><br>------------------------------------------------------------------------------<br> <br>_______________________________________________<br>gstreamer-devel mailing list<br><a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">gstreamer-devel@lists.sourceforge.net</a><br><a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br> <br></blockquote></div></div></div><br> <br>------------------------------------------------------------------------------<br> <br>_______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">gstreamer-devel@lists.sourceforge.net</a><br> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br> <br></blockquote></div><br> </div></div><br>------------------------------------------------------------------------------<br> <br>_______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">gstreamer-devel@lists.sourceforge.net</a><br> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br> <br></blockquote></div><br>