<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">We have been trying to play a video streaming through a RTSP server by using vaapidecode and vaapisink gstreamer elements. But the problem is pipeline constructed seems problematic and it does not work. Here is the pipeline:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">gst-launch-1.0 rtspsrc location=rtsp://<a href="http://192.168.1.15/media/video1?g726=rfc3551" target="_blank">192.168.1.15/media/video1?g726=rfc3551</a> ! rtph264depay ! vaapidecode ! vaapisink<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">The error message is as follows:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">gstbasesrc.c(2865): gst_base_src_loop (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSrc:udpsrc2:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">streaming task paused, reason not-linked (-1)<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">And moreover this is the output of the gst-launch:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva info: VA-API version 0.35.1<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva info: va_getDriverName() returns 0<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva info: Found init function __vaDriverInit_0_35<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva info: va_openDriver() returns 0<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Setting pipeline to PAUSED ...<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Pipeline is live and does not need PREROLL ...<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Got context from element 'vaapidecode0': gst.vaapi.Display=context, display=(GstVaapiDisplay)NULL;<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (open) Opening Stream<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (connect) Connecting to rtsp://<a href="http://192.168.1.15/media/video1?g726=rfc3551" target="_blank">192.168.1.15/media/video1?g726=rfc3551</a><p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (open) Retrieving server options<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (open) Retrieving media info<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (request) SETUP stream 0<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (request) SETUP stream 1<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (open) Opened Stream<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Setting pipeline to PLAYING ...<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">New clock: GstSystemClock<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (request) Sending PLAY request<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (request) Sending PLAY request<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Progress: (request) Sent PLAY request<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">ERROR: from element /GstPipeline:pipeline0/GstRTSPSrc:camera/GstUDPSrc:udpsrc3: Internal data flow error.<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Additional debug info:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">gstbasesrc.c(2865): gst_base_src_loop (): /GstPipeline:pipeline0/GstRTSPSrc:camera/GstUDPSrc:udpsrc3:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">streaming task paused, reason not-linked (-1)<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Execution ended after 0:00:00.704377971<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Setting pipeline to PAUSED ...<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Setting pipeline to READY ...<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">We think we should place a capsfilter before decode element but it did not work too. In addition we have placed demuxer elements for an rtsp stream such as: rtpptdemux but these did not even work. <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">We are sure, vaapidecode and vaapisink elements are working properly. For example, following pipeline decodes a 1080p movie on GPU without any problems.<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">gst-launch-1.0 filesrc location=/my/file/location ! qtdemux ! vaapidecode ! vaapisink <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt">For those who think there may be a problem with RTSP content the following pipeline also works without any problems:<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt">gst-launch-1.0 rtspsrc location=rtsp://<a href="http://192.168.1.15/media/video1?g726=rfc3551" target="_blank">192.168.1.15/media/video1?g726=rfc3551</a> ! rtph264depay ! avdec_h264 ! xvimagesink sync=false <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px;min-height:8pt"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">We are working on an Intel E3845 processor. We are on Ubuntu 14.04 LTS OS and driver version is as follows: <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">libva-intel-vaapi-driver and version: 1.3.0-1ubuntu1. Gstreamer vaapi element's name and version is as follows: libgstreamer-vaapi1.0-0 and version: 0.5.7-0ubuntu4<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px"> <p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Could you please help to decode an rtsp stream on GPU by using gstreamer vaapi plugins?<p style="margin:0px;padding:0px;border:0px;font-size:12.800000190734863px;font-family:intel-clear,arial,helvetica,'helvetica neue',verdana,sans-serif;vertical-align:baseline;color:rgb(61,61,61);line-height:15.600000381469727px">Regards.<div> </div></div></div><div> </div>-- <div dir="ltr"><div>Engin FIRAT</div><div>Adoniss Yazılım Bilişim </div><div>Elektronik Araştırma Geliştirme </div><div>Limited Şirketi</div><div>+90 506 884 82 07 (Mobile)ODTÜ Teknokent, ODTÜ-Halıcı Yazılımevi </div><div>İnönü Bulvarı / ANKARA (Address)</div><div><img src="http://gdurl.com/hml0"> </div></div> </div>