<div dir="ltr">Hi, I installed latest intel graphics for linux by following wiki on ubuntu 15.04/intel baytrail (lenevo B50 touch laptop).: <a href="https://01.org/linuxgraphics/downloads/intel-graphics-installer-linux-1.2.0" target="_blank">https://01.org/linuxgraphics/downloads/intel-graphics-installer-linux-1.2.0</a> I am trying to execute following pipeline : (It seems that vaapidecode is unable to connect with vaapiencode_h264 . Can anyone tell me why it is failing ? ) <pre>GST_DEBUG=3 gst-launch-1.0 flvmux name=mux streamable=true ! rtmpsink sync=true location="rtmp://xxxxxxx" rtspsrc location="rtsp://<a href="http://admin:admin@192.168.0.162:554/cam/realmonitor?channel=1&subtype=0" target="_blank">admin:admin@192.168.0.162:554/cam/realmonitor?channel=1&subtype=0</a>" ! rtph264depay ! queue ! h264parse ! vaapidecode ! queue ! vaapiencode_h264 rate-control=cbr tune=high-compression ! mux. libva info: VA-API version 0.38.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so libva info: Found init function __vaDriverInit_0_38 libva info: va_openDriver() returns 0 Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Got context from element 'vaapidecode0': gst.vaapi.Display=context, display=(GstVaapiDisplay)NULL; Progress: (open) Opening Stream Progress: (connect) Connecting to rtsp://<a href="http://admin:admin@192.168.0.162:554/cam/realmonitor?channel=1&subtype=0" target="_blank">admin:admin@192.168.0.162:554/cam/realmonitor?channel=1&subtype=0</a> Progress: (open) Retrieving server options Progress: (open) Retrieving media info Progress: (request) SETUP stream 0 Progress: (open) Opened Stream Setting pipeline to PLAYING ... New clock: GstSystemClock Progress: (request) Sending PLAY request 0:00:00.304117302 3863 0x7fef1c03f800 FIXME default gstutils.c:3766:gst_pad_create_stream_id_internal:<fakesrc0:src> Creating random stream-id, consider implementing a deterministic way of creating a stream-id Progress: (request) Sending PLAY request Progress: (request) Sent PLAY request Redistribute latency... Redistribute latency... 0:00:00.709249061 3863 0x1608450 WARN GST_PADS gstpad.c:3989:gst_pad_peer_query:<vaapidecode0:src> could not send sticky events 0:00:00.832054174 3863 0x7fef1c03f8f0 WARN basesrc gstbasesrc.c:2943:gst_base_src_loop:<udpsrc1> error: Internal data flow error. 0:00:00.832118375 3863 0x7fef1c03f8f0 WARN basesrc gstbasesrc.c:2943:gst_base_src_loop:<udpsrc1> error: streaming task paused, reason not-negotiated (-4) ERROR: from element /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSrc:udpsrc1: Internal data flow error. Additional debug info: gstbasesrc.c(2943): gst_base_src_loop (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSrc:udpsrc1: streaming task paused, reason not-negotiated (-4) Execution ended after 0:00:00.528707555 Setting pipeline to PAUSED ... Setting pipeline to READY ... 0:00:00.842904885 3863 0x16082d0 WARN rtspsrc gstrtspsrc.c:6051:gst_rtspsrc_send:<rtspsrc0> error: Got error response: 455 (Method Not Valid in This State). 0:00:00.843011339 3863 0x16082d0 WARN rtspsrc gstrtspsrc.c:8011:gst_rtspsrc_pause:<rtspsrc0> error: Could not send message. (Generic error) Setting pipeline to NULL ... Freeing pipeline ... janardana@janardana-Lenovo-B50-30-Touch:~/src/gstreamer/head$</pre></div>