<div dir="ltr">First, are you using 0.10 or 1.0 GStreamer? </div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Jan 20, 2014 at 7:24 AM, CNA <<a href="mailto:arunaa.n23@wipro.com" target="_blank">arunaa.n23@wipro.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, I need to (extract) play only video from .mp4 file through a gstreamer pipeline. I am testing this pipeline on the TI DM8148 board, in which requirement is not to use OMX (hardware) components( only use software encoders). *gst-launch filesrc location=/home/sample1/Holymonks.mp4 ! qtdemux name=demux ! queue ! h264parse ! ffdec_h264 ! v4l2sink* Below is the error obtained : /Setting pipeline to PAUSED ... ** (gst-launch-0.10:3658): CRITICAL **: gst_v4l2sink_sync_rotation: assertion `v4l2_ioctl (fd, VIDIOC_S_CTRL, &c ontrol) >= 0' failed ** (gst-launch-0.10:3658): CRITICAL **: gst_v4l2sink_sync_rotation: assertion `v4l2_ioctl (fd, VIDIOC_S_CTRL, &c ontrol) >= 0' failed ** (gst-launch-0.10:3658): CRITICAL **: gst_v4l2sink_sync_flip: assertion `v4l2_ioctl (fd, VIDIOC_S_CTRL, &contr ol) >= 0' failed Pipeline is PREROLLING ... ERROR: from element /GstPipeline:pipeline0/GstQTDemux:demux: GStreamer encountered a general stream error. Additional debug info: qtdemux.c(3838): gst_qtdemux_loop (): /GstPipeline:pipeline0/GstQTDemux:demux: streaming stopped, reason error ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... !!!!!!!!!unreference all the remaining buffers!!!!!!!!!Freeing pipeline .../ Can anybody please tell me whether the pipeline used above is correct. As I am learning Gstreamer, kindly provide suggestions on what basis I need to join elements in pipeline to get only video from .mp4 file. Help me to overcome this error and progress further, I could not find how to form a gstreamer pipeline to get only video. Thanks. -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Pipeline-to-get-only-video-from-mp4-file-tp4664773.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Pipeline-to-get-only-video-from-mp4-file-tp4664773.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> -- <div dir="ltr"><table width="426" cellpadding="2" cellspacing="0"><colgroup><col width="422"></colgroup><tbody><tr><td width="422" valign="TOP" style="border:none;padding:0in"> Rob Krakora, Senior Software EngineerMessageNet Systems 101 E Carmel Dr, Suite 105 Carmel, IN 46032 <a href="http://www.messagenetcommunicationsystems.com/?utm_source=email+signature&utm_medium=email&utm_campaign=email+signature+to+homepage" style="color:rgb(17,85,204)" target="_blank">MessageNetSystems.com</a> <a href="mailto:rob.krakora@messagenetsystems.com" style="color:rgb(17,85,204)" target="_blank">Rob.Krakora@MessageNetSystems.com</a> P: <a style="color:rgb(17,85,204)">317.566.1677</a>, 212 F: <a style="color:rgb(17,85,204)">317.663.0808</a></td></tr><tr><td width="422" valign="TOP" style="border-top-width:1px;border-style:solid none none;border-top-color:rgb(0,0,0);padding:0.02in 0in 0in"> For the latest news, information, and blogs, please be sure to visit, follow, and like us...<a href="http://www.messagenetcommunicationsystems.com/get-the-message-out-blog/?utm_source=email+signature&utm_medium=email&utm_campaign=gmail+signature+to+blog" style="color:rgb(17,85,204)" target="_blank"><img src="http://www.messagenetcommunicationsystems.com/wp-content/uploads/2013/07/MessageNet_Logo_200x200-e1374867138718.jpg" name="SafeHtmlFilter_14040bc6244eae96_graphics46" align="BOTTOM" width="34" height="34" border="0"></a> <a href="http://www.youtube.com/user/MessageNetConnection/feed" style="color:rgb(17,85,204)" target="_blank"><img src="http://www.messagenetsystems.com/images/socialmediaicons/32/youtube.png" name="SafeHtmlFilter_14040bc6244eae96_graphics47" align="BOTTOM" width="34" height="34" border="0"></a> <a href="http://www.linkedin.com/company/messagenet-systems" style="color:rgb(17,85,204)" target="_blank"><img src="http://www.messagenetsystems.com/images/socialmediaicons/32/linkedin.png" name="SafeHtmlFilter_14040bc6244eae96_graphics48" align="BOTTOM" width="34" height="34" border="0"></a> <a href="http://twitter.com/MessageNet" style="color:rgb(17,85,204)" target="_blank"><img src="http://www.messagenetsystems.com/images/socialmediaicons/32/twitter.png" name="SafeHtmlFilter_14040bc6244eae96_graphics49" align="BOTTOM" width="34" height="34" border="0"></a> <a href="http://www.facebook.com/MessageNetsystems" style="color:rgb(17,85,204)" target="_blank"><img src="http://www.messagenetsystems.com/images/socialmediaicons/32/facebook.png" name="SafeHtmlFilter_14040bc6244eae96_graphics50" align="BOTTOM" width="34" height="34" border="0"></a> </td></tr></tbody></table></div> </div>