<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="EN-US" link="blue" vlink="purple"> <div class="WordSection1"> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Good to know.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for your explanation.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wind<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"> <p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> gstreamer-devel-bounces+feng.yuan=intel.com@lists.freedesktop.org [mailto:gstreamer-devel-bounces+feng.yuan=intel.com@lists.freedesktop.org] <b>On Behalf Of </b>Krzysztof Konopko<br> <b>Sent:</b> Tuesday, April 09, 2013 12:32 AM<br> <b>To:</b> Discussion of the development of and with GStreamer<br> <b>Subject:</b> Re: Pipeline not going into Playing state when uridecodebin with custom handler is used<o:p></o:p></span></p> </div> </div> <p class="MsoNormal"><o:p> </o:p></p> <div> <p class="MsoNormal">Thanks Wind for sharing your experience.<o:p></o:p></p> <div> <p class="MsoNormal"><o:p> </o:p></p> <div> <p class="MsoNormal">I think that the problem is well understood now and GStreamer maintainers confirmed that some scenarios are not handled properly. My problem is twofold:<o:p></o:p></p> </div> <div> <p class="MsoNormal">* There's a *live* element being added *dynamically*, so there's *no* pre-roll anywhere downstream of that element. Currently there's no way in GStreamer to communicate this fact in certain contexts (like from within a decodebin)<o:p></o:p></p> </div> <div> <p class="MsoNormal">* There's some state change inconsistency in non-top level bins when there's asynchronous state change and NO_PREROLL state change return involved [1]<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">I worked-around both problems by:<o:p></o:p></p> </div> <div> <p class="MsoNormal">* Setting both "async" and "sync" properties of my sink element to FALSE. These properties do not matter in my situation anyway as the sink is not a genuine media stream consumer--it passes it to some other process which handles synchronisation on its own.<o:p></o:p></p> </div> <div> <p class="MsoNormal">* Forcing a new live element to go to state PLAYING within my bin after synchronising its state with the parent<o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">[1] </span><a href="https://bugzilla.gnome.org/show_bug.cgi?id=632782" target="_blank"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">https://bugzilla.gnome.org/show_bug.cgi?id=632782</span></a><o:p></o:p></p> </div> <div> <p class="MsoNormal"><o:p> </o:p></p> </div> <div> <p class="MsoNormal">Cheers,<o:p></o:p></p> </div> <div> <p class="MsoNormal">Kris<o:p></o:p></p> </div> </div> </div> <div> <p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p> <div> <p class="MsoNormal">2013/4/8 Yuan, Feng <<a href="mailto:feng.yuan@intel.com" target="_blank">feng.yuan@intel.com</a>><o:p></o:p></p> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> I didn’t read every thread carefully, but just want to share some experience, and hope may help you.</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> If some elements ever returned <</span> <span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">GST_STATE_CHANGE_ASYNC>, e.g. from READY to PAUSE, this element need handle preroll to post a gst_message_new_state_changed when first buffer coming, in order to make states changing going on. In this situation, some case like single thread may get dead-lock if multiple elements need to handle the same issue. Maybe you can try to add a <queue> between these elements or make the elment(or bin) post the message in another thread/async.</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Just hope this can help you.</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Wind</span><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p> <div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> gstreamer-devel-bounces+feng.yuan=<a href="mailto:intel.com@lists.freedesktop.org" target="_blank">intel.com@lists.freedesktop.org</a> [mailto:<a href="mailto:gstreamer-devel-bounces%2Bfeng.yuan" target="_blank">gstreamer-devel-bounces+feng.yuan</a>=<a href="mailto:intel.com@lists.freedesktop.org" target="_blank">intel.com@lists.freedesktop.org</a>] <b>On Behalf Of </b>Krzysztof Konopko<br> <b>Sent:</b> Monday, April 08, 2013 5:59 PM<br> <b>To:</b> Discussion of the development of and with GStreamer<br> <b>Subject:</b> Re: Pipeline not going into Playing state when uridecodebin with custom handler is used</span><o:p></o:p></p> </div> </div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">According to the conversation on IRC in #gstreamer on 04/04/2013 my problem seems to be specifically an issue when a *live* element is added to the pipeline through a decodebin.<o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Wim reproduced it with sdpdemux and concluded that adding a live element to the pipeline should be signalled with some sort of new message but there's no room for new messages in GstMessageType.<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Questions:<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">1) Is adding a live element dynamically another problem and is loosely coupled with [1] (which BTW has been addressed so far with work-arounds only)?<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2) Does extending GstMessageType really require changing its type?<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Wouldn't it be possible to ignore the fact that it's been designed to be a mask and start adding new values (existing ones that happen to be bit masks would be just another values)?<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">3) If there's a message emitted to inform that a new live element has been added, who should react upon it?<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">4) Any suggested work-arounds?<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Unfortunately setting "async" and "sync" on the sink to FALSE doesn't help reliably without explicitly prodding the new live element to go to state PLAYING. <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">[1] <a href="https://bugzilla.gnome.org/show_bug.cgi?id=632782" target="_blank"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">https://bugzilla.gnome.org/show_bug.cgi?id=632782</span></a><o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Kris<o:p></o:p></p> </div> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2013/4/3 Krzysztof Konopko <<a href="mailto:krzysztof.konopko@gmail.com" target="_blank">krzysztof.konopko@gmail.com</a>><o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Do you think that gst_message_new_request_state() [1] could be of any help here?<o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is it worthwhile to send a request on behalf of the new live element to set it to playing and handle it in a more controlled manner in the main application rather than from within a custom bin in the context of the typefinder? This would be a work-around I guess as the core issue still exists [2].<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">[1] <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMessage.html#gst-message-new-request-state" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMessage.html#gst-message-new-request-state</a><o:p></o:p></p> </div> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">[2] <a href="https://bugzilla.gnome.org/show_bug.cgi?id=632782" target="_blank"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">https://bugzilla.gnome.org/show_bug.cgi?id=632782</span></a><o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Kris<o:p></o:p></p> </div> </div> <div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2013/4/2 Krzysztof Konopko <<a href="mailto:krzysztof.konopko@gmail.com" target="_blank">krzysztof.konopko@gmail.com</a>><o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">OK, after some debugging I've come across a comment in gsturidecodebin.c that led me to this bug:<o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://bugzilla.gnome.org/show_bug.cgi?id=632782" target="_blank">https://bugzilla.gnome.org/show_bug.cgi?id=632782</a><o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Looks like instantiating live elements through type-finding either does not work or at least it's racy.<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">If this is all true and if there are any ideas of fixing it, I'd be tempted to have a look and tinker a little bit with it.<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p> </div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Kris<o:p></o:p></p> </div> </div> <div> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2013/3/28 Krzysztof Konopko <<a href="mailto:krzysztof.konopko@youview.com" target="_blank">krzysztof.konopko@youview.com</a>><o:p></o:p></p> <p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Interestingly /decodebin2/ does not propagate instantiated element's<br> GstStateChangeReturn return value as it's a type-found signal callback.<br> gst-plugin-base/gst/playback/gstdecodebin2.c:connect_pad():<br> <br> /* Bring the element to the state of the parent */<br> if ((gst_element_set_state (element,<br> GST_STATE_PAUSED)) == GST_STATE_CHANGE_FAILURE) {<br> <br> so no way to say there will be no pre-roll.<br> <br> Does it make any sense to try to instantiate a live element through<br> typfinding?<br> <br> Cheers,<br> Kris<o:p></o:p></p> <div> <div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><br> On 11/01/13 17:05, Krzysztof Konopko wrote:<br> > Hi,<br> ><br> > I had a closer look into it. The problem can be reduced to something<br> > like this (hope you don't mind if I rehash some bits of previous<br> > description):<br> ><br> > gst-launch-1.0 \<br> > uridecodebin uri=file:///tmp/test.sdp caps=video/mpegts \<br> > ! fakesink<br> ><br> > On my laptop it doesn't matter whether it's a genuine HTTP or filesystem<br> > request. It deadlocks.<br> ><br> ><br> > There's a custom vqesdpdemux element which has application/sdp<br> > capability on its sink. Here's how the gist of the problem goes:<br> ><br> > 1. uridecodebin instantiates filesrc, queue2 and vqesdpdemux (typefinder<br> > magic)<br> ><br> > 2. vqesdpdemux receives data (buffers) from filesrc until it gets EOS<br> > event on its sink pad (receives SDP content, simple text file)<br> ><br> > 3. In the same thread were the EOS event was received vqesdpdemux<br> > (GstBin) creates a genuine custom vqesrc element which is supposed to<br> > receive the RTP traffic<br> ><br> > 4. The new vqesrc element's state is synchronised with its parent<br> > (vqesdpdemux) by calling gst_element_sync_state_with_parent() but this<br> > can "trap" it in PAUSED or READY state (depends how far in the<br> > transition the pipeline got after sending EOS).<br> ><br> > Now because vqesrc is a *live* element, it's activated pad thread waits<br> > in gst_base_src_wait_playing() for vqesrc to get into PLAYING. But it<br> > won't transition to that state if it's "trapped" in pipeline's<br> > transition towards READY (depending on timing conditions).<br> ><br> ><br> ><br> > I'll be digging into it (*) but if it bells with anyone, please shout.<br> ><br> > Basically we're looking for (or trying to find/understand) a good<br> > pattern to create a new source element somewhere in the *middle* of the<br> > pipeline based on some information (buffers) already received and<br> > potentially ditch/replace (lop off) the old bit of upstream (if<br> > possible) after it's done its job.<br> ><br> > It works pretty well if the source is explicit (e. g. filesrc). Things<br> > get complicated if one wants to use typefind magic and<br> > auto-instantiating/connecting (some decodebin element).<br> ><br> > Cheers,<br> > Kris<br> ><br> > (*) It's a quite involving piece of work to looking into. I'm not doing<br> > it because I'm magnanimous but because Mariusz is sitting almost next to<br> > me :)<br> ><br> > On 07/01/13 17:57, Mariusz Buras wrote:<br> >> Hi all,<br> >><br> >> I have a quite complex problem to describe so first I'll show you my<br> >> pipeline setup:<br> >><br> >> uridecodebin uri=<a href="http://some_address_somewhere.co.uk/test.sdp" target="_blank">http://some_address_somewhere.co.uk/test.sdp</a><br> >> caps=video/mpegts<br> >> ! queue ! tsdemux ! video/x-h264 ! decodebin ! queue ! xvimagesink<br> >><br> >> Where "test.sdp" is an SDP file which refers to a multicast RTP stream.<br> >> I have created an element "vqesrc"[1] which is a live source for this<br> >> multicast RTP data. It takes the contents of an SDP file as a property.<br> >> To get it to be autoplugged by decodebin I have also created<br> >> vqesdpdemux which handles "application/sdp" caps much like hlsdemux or<br> >> sdpdemux works.<br> >><br> >> vqesdpdemux is a bin. It creates a vqesrc, adds it to itself, sets the SDP<br> >> file data as a one of the properties of vqesrc and adds a ghost pad on<br> >> vqesdpdemux exposing the source pad of the gstvqesrc to outside of the<br> >> bin. So when everything works I should be getting something like that on<br> >> the diagram[2]. As you can see everything gets autoplugged as expected<br> >> and I indeed can see live video on my screen. I have also attached a log<br> >> file that shows what's going on when it works [3].<br> >><br> >> In vqesdpdemux when I create the vqesrc child element (which is a live<br> >> source) I am careful to call gst_element_sync_state_with_parent for the<br> >> child. Also I am careful to return GST_STATE_CHANGE_NO_PREROLL from<br> >> vqesdpdemux whenever a request to enter state PAUSED is received as I<br> >> know the child I will be adding will be live.<br> >><br> >><br> >> The problem starts when uridecodebin is pointed to a locally stored SDP<br> >> file, something like this:<br> >><br> >> uridecodebin uri=file:///home/mariusz.buras/tmp/test.sdp<br> >> caps=video/mpegts<br> >> ! queue ! tsdemux ! video/x-h264 ! decodebin ! queue ! xvimagesink<br> >><br> >> Basically, what seems to happen is that my pipeline never fully enters<br> >> PAUSED state (only vqesdpdemux does) and gets stuck in READY forever.<br> >> As shown in [4] pipeline start to preroll but never finishes. My<br> >> experiments showed that in "http case" SDP file is delivered while the<br> >> pipline is changing it's state to PLAYING. While in the "broken" case<br> >> it's delivered when the pipeline is transitioning to the PAUSED state.<br> >> This leads me to believe that something wrong happens (or something good<br> >> doesn't happen) when vqesdpdemux receives a sink event callback with a<br> >> buffer containing the SDP file.<br> >><br> >> What I have tried to fix/mitigate the problem*:<br> >><br> >> 1. Forcing vqesrc element state to PLAYING just after it's added to<br> >> vqesdpdemux bin with gst_set_state rather than<br> >> gst_element_sync_state_with_parent. This makes it work, but I don't<br> >> think this is a right thing to do. It makes me a bit uneasy using a<br> >> half baked "fix" to a problem I don't understand.<br> >> 2. Sending a reconfigure event. Doesn't help.<br> >> 3. Delaying the creation of vqesrc element - this doesn't work.<br> >> 4. Plenty of weird/desperate hacks on vqesdpdemux - same result.<br> >><br> >> * when I write that "it doesn't work" I mean that it behaves in the same<br> >> or very similar fashion to when the "fix" wasn't applied.<br> >><br> >> I've also attached [5] a diagram of the last state the pipeline gets<br> >> into when it doesn't work. This is not very helpful though, because<br> >> the last state my pipeline fully enters is READY when no auto-plugging<br> >> happened yet.<br> >><br> >><br> >> I think possibly what is happening is that the pipeline is prerolling in<br> >> the PAUSED state so vqesrc doesn't produce any data so the pipeline<br> >> never exits the prerolling state so makes it to state PLAYING but then<br> >> I'm unsure why it would work with the http case but not with local file.<br> >><br> >><br> >> Can someone help me with that?<br> >><br> >> Regards,<br> >> Mariusz.<br> >><br> >><br> >> [1] The code for both of these can be found on github:<br> >> <a href="https://github.com/sqward/gst-vqe" target="_blank">https://github.com/sqward/gst-vqe</a><br> >> [2] An example working pipeline attached as "example_working_pipeline.jpg"<br> >> [3] An example working log attached as "example_working_log.txt"<br> >> [4] Log of a broken case attached as "broken_case.txt"<br> >> [5] A diagram of "broken" pipeline when it gets stuck in READY state<br> >> attached as "broken_case.png"<br> >><br> >><br> >><br> >> _______________________________________________<br> >> gstreamer-devel mailing list<br> >> <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> >> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank"> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> >><br> > _______________________________________________<br> > gstreamer-devel mailing list<br> > <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank"> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> ><o:p></o:p></p> </div> </div> <p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">This transmission contains information that may be confidential and contain personal views which are not necessarily those of YouView TV Ltd. 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