<br>Hi ,<div> I have few questions . </div><div><br></div><div> Why are you using navtest plugin to perform PLAY/PAUSE/SEEK ? because that can be done using your application also.</div><div><br></div><div> And what is the implementation of navtest i mean what exactly you are doing in that plugin ? </div> <div><br></div><div><br></div><div><br></div><div><br><div class="gmail_quote">On Sat, May 30, 2009 at 6:57 PM, Suresh Choudary <span dir="ltr"><<a href="mailto:sikkim.suresh@gmail.com">sikkim.suresh@gmail.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div>Dear All,</div> <div> </div> <div>I am using the following pipeline with gstreamer version 0.10.22 and latest plugins.</div> <div> </div> <div>gst-launch filesrc location=/home/testh263.3gp ! qtdemux name=demux demux.audio_00 ! queue ! amrdecoder ! navtest ! alsasink demux.video ! queue ! h263decoder ! v4l2sink</div> <div> </div> <div>where navtest is a simple plugin which allows user to PLAY/PAUSE/SEEK.</div> <div> </div> <div>Overall the pipeline is as follows from application point of view.</div> <div> </div> <div> |----------> queue ---> amrdecoder --->alsasink</div> <div>filesrc--->qtdemux ----|</div> <div> |----------->queue---->h263decoder--->v4l2sink</div> <div> </div> <div>Where I am using the open source alsasink and custom decoders. When I try to set the pipeline to PAUSED state, some times (1 out of 10 times) all the components can transition to PAUSED state, but alsasink sends a ASYNC notification, but never commits to paused state. (As the part log below shows the same.I have enabled only basesink logs)</div> <div> </div> <div> </div> <div>--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</div> <div> <div> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.538391114 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:2911:gst_base_sink_chain_unlocked:<avsysvideosink0> got times start: 0:00:23.648648648, end: 0:00:23.690357023</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.538726807 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1534:gst_base_sink_get_sync_times:<avsysvideosink0> got times start: 0:00:23.648648648, stop: 0:00:23.690357023, do_sync 1</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.538970948 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1984:gst_base_sink_do_sync:<avsysvideosink0> possibly waiting for clock to reach 0:00:23.648648648, adjusted 0:00:23.648648648</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.590026856 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4099:gst_base_sink_change_state:<avsysvideosink0> PLAYING to PAUSED</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.611236573 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:2846:gst_base_sink_needs_preroll:<avsysvideosink0> have_preroll: 0, EOS: 0 => needs preroll: 1</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.611511231 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4131:gst_base_sink_change_state:<avsysvideosink0> PLAYING to PAUSED, we are not prerolled</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.611694336 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4135:gst_base_sink_change_state:<avsysvideosink0> doing async state change</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.612030030 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4144:gst_base_sink_change_state:<avsysvideosink0> rendered: 13, dropped: 53</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">[gst_avsysvideosink_change_state:835]GST_STATE_CHANGE_PLAYING_TO_PAUSED</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.612487793 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1990:gst_base_sink_do_sync:<avsysvideosink0> clock returned 2</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.612731934 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:2003:gst_base_sink_do_sync:<avsysvideosink0> unscheduled, waiting some more</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.612915039 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1943:gst_base_sink_do_sync:<avsysvideosink0> prerolling object 0xe2ad8</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.613098145 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1357:gst_base_sink_commit_state:<avsysvideosink0> commiting state to PAUSED</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.613281250 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1382:gst_base_sink_commit_state:<avsysvideosink0> posting PAUSED state change message</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.614196778 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1388:gst_base_sink_commit_state:<avsysvideosink0> posting async-done message</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.614532471 865 0xcfdd0 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:1732:gst_base_sink_wait_preroll:<avsysvideosink0> waiting in preroll for flush or PLAYING</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"><strong><font color="#ff0000">0:02:07.620910645 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4099:gst_base_sink_change_state:<alsasink0> PLAYING to PAUSED</font></strong></span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"><strong><font color="#ff0000">0:02:07.621154785 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:2846:gst_base_sink_needs_preroll:<alsasink0> have_preroll: 0, EOS: 0 => needs preroll: 1</font></strong></span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"><strong><font color="#ff0000">0:02:07.653625489 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4131:gst_base_sink_change_state:<alsasink0> PLAYING to PAUSED, we are not prerolled</font></strong></span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"><strong><font color="#ff0000">0:02:07.653900147 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4135:gst_base_sink_change_state:<alsasink0> doing async state change</font></strong></span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">0:02:07.654205323 865 0xcfe80 DEBUG basesink /home/root/x2//middleware/multimedia-framework/media-service/gstreamer/gstreamer-0.10.22/./libs/gst/base/gstbasesink.c:4144:gst_base_sink_change_state:<alsasink0> rendered: 157, dropped: 0</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">PAUSED</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font> </p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font> </p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">But after this the audio sink (alsasink) can not commit the state to pause. I understand this happens because no more buffers are pushed by amrdecoder to alsasink but somehow the qtdemux is also blocked and sends no data to amrdecoder which may cause the sink to get one buffer and get prerolled and commit the state.</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font> </p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">I want to enquire if anyone of you have faced similar issue, and how to go about this issue. Please help me resolve this issue.</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font> </p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">BR,</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial">Suresh</span></font></p> <p><font face="Arial" size="2"><span style="font-size:10pt;font-family:Arial"></span></font> </p></div></div> <br>------------------------------------------------------------------------------<br> Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT<br> is a gathering of tech-side developers & brand creativity professionals. Meet<br> the minds behind Google Creative Lab, Visual Complexity, Processing, &<br> iPhoneDevCamp as they present alongside digital heavyweights like Barbarian<br> Group, R/GA, & Big Spaceship. <a href="http://p.sf.net/sfu/creativitycat-com" target="_blank">http://p.sf.net/sfu/creativitycat-com</a> <br>_______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.sourceforge.net">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><br clear="all"><br>-- <br>Regards,<br><br>Sudarshan Bisht<br> </div>