<blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="quote dark-border-color"><div class="quote light-border-color"> <div class="quote-author" style="font-weight: bold;">RiccardoCagnasso wrote</div> <div class="quote-message"> You can decode videos up to 8K with intel video cards and vaapi using the new intel-media-driver <a href="https://github.com/intel/media-driver" target="_top" rel="nofollow" link="external">https://github.com/intel/media-driver</a> </div> </div></blockquote> After installing the iHD driver following the steps you provided, I've set the following environment variables: <ul> <li>LD_LIBRARY_PATH=path_to_installed_driver_lib</li> <li>LIBVA_DRIVERS_PATH=path_to_installed_driver_lib/dri</li> <li>LIBVA_DRIVER_NAME=iHD</li> <li>GST_VAAPI_ALL_DRIVERS=1</li> </ul> <tt>vainfo</tt> correctly opens the iHD driver and shows all the supported profiles and entrypoints. <tt>gst-instpect vaapi</tt> shows all the vaapi encoder/decoder but also prints the following lines: <code>DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0</code> and repeatedly the following error lines while decoding a sample 4k video: <code> ** (gst-launch-1.0:5765): CRITICAL **: 15:09:29.695: gst_vaapi_mini_object_unref: assertion 'object != NULL' failed ** (gst-launch-1.0:5765): CRITICAL **: 15:09:29.727: gst_vaapi_surface_associate_subpicture: assertion 'subpicture != NULL' failed</code> anyway the video is displayed. All the above messages where not printed when I used the older stock driver i965. I am trying the iHD because I need to decode a video with resolution 5472x3648. I have a sample video recorded directly from a h265 camera with that resolution and I am able to decode and see frames using a software decoder like this: <tt>gst-launch-1.0 filesrc location="sample.h265" ! video/x-h265 ! h265parse ! avdec_h265 ! autovideosink sync=true</tt> but switching to the vaapi version with new intel-media-driver iHD: <tt>gst-launch-1.0 filesrc location="sample.h265" ! video/x-h265 ! h265parse ! vaapih265dec ! autovideosink sync=true</tt> I get the following error: <code> DRM_IOCTL_I915_GEM_APERTURE failed: Invalid argument Assuming 131072kB available aperture size. May lead to reduced performance or incorrect rendering. get chip id failed: -1 [22] param: 4, val: 0 Setting pipeline to PAUSED ... Pipeline is PREROLLING ... Got context from element 'autovideosink0-actual-sink-vaapi': gst.vaapi.Display=context, gst.vaapi.Display=(GstVaapiDisplay)"\(GstVaapiDisplayGLX\)\ vaapidisplayglx1"; ERROR: from element /GstPipeline:pipeline0/GstVaapiDecode_h265:vaapidecode_h265-0: No valid frames decoded before end of stream Additional debug info: ../../../../gst-libs/gst/video/gstvideodecoder.c(1139): gst_video_decoder_sink_event_default (): /GstPipeline:pipeline0/GstVaapiDecode_h265:vaapidecode_h265-0: no valid frames found ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... Freeing pipeline ... </code> When with the older i965 driver I got the following: <code>Pipeline is PREROLLING ... Got context from element 'autovideosink0-actual-sink-vaapi': gst.vaapi.Display=context, gst.vaapi.Display=(GstVaapiDisplay)"\(GstVaapiDisplayGLX\)\ vaapidisplayglx1"; ERROR: from element /GstPipeline:pipeline0/GstVaapiDecode_h265:vaapidecode_h265-0: Decoding error Additional debug info: ../../../gst/vaapi/gstvaapidecode.c(764): gst_vaapidecode_handle_frame (): /GstPipeline:pipeline0/GstVaapiDecode_h265:vaapidecode_h265-0: Decode error -1 ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... Freeing pipeline ... </code> Any advice on how to setup gstreamer to decode h265 videos of that size (5472x3648) in hardware? My specs: Ubuntu 18.01 | GStreamer 1.14 from repo | Intel i7-8700 | Nvidia RTX 2080 <hr align="left" width="300" /> Sent from the <a href="http://gstreamer-devel.966125.n4.nabble.com/">GStreamer-devel mailing list archive</a> at Nabble.com.