MFX H/W codec issue on Intel N3350

[LiChuan__Kao]

SoC: N3350 OS: Ubuntu 18.04 We can add gstreamer-MediaSDK plugin into gstreamer-1.0, and see 16 elements using command "gst-inspect-1.0 | grep mfx". 16 elements listed below: ubuntu@LR29b5-DevHost-ApolloLake:~$ gst-inspect-1.0 | grep mfx mfx: mfxh264dec: MFX H264 decoder mfx: mfxhevcdec: MFX HEVC decoder mfx: mfxmpeg2dec: MFX MPEG2 decoder mfx: mfxwmvdec: MFX WMV decoder mfx: mfxvc1dec: MFX VC1 decoder mfx: mfxvp8dec: MFX VP8 decoder mfx: mfxvp9dec: MFX VP9 decoder mfx: mfxjpegdec: MFX JPEG decoder mfx: mfxdecode: MFX Video Decoder mfx: mfxvpp: MFX video postprocessing mfx: mfxsinkelement: MFX sink mfx: mfxsink: MFX Sink Bin mfx: mfxh264enc: MFX H.264 encoder mfx: mfxhevcenc: MFX H.265 encoder mfx: mfxmpeg2enc: MFX MPEG-2 encoder mfx: mfxjpegenc: MFX JPEG encoder Although we're able to build the gstreamer-msdk, but find error in using mfx elements. For example, with command "gst-launch-1.0 filesrc location=/home/ubuntu/video_files/What-is-XenDesktop_H264_AAC.mp4 ! qtdemux ! h264parse ! mfxh264dec ! fpsdisplaysink video-sink=mfxsink" comes error below: ubuntu@LR29b5-DevHost-ApolloLake:~$ gst-launch-1.0 filesrc location=/home/ubuntu/video_files/What-is-XenDesktop_H264_AAC.mp4 ! qtdemux ! h264parse ! mfxh264dec ! fpsdisplaysink video-sink=mfxsink libva info: VA-API version 1.1.0 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_1_1 libva info: va_openDriver() returns 0 Setting pipeline to PAUSED ... Pipeline is PREROLLING ... Got context from element 'mfxsink0': gst.mfx.Aggregator=context, gst.mfx.Aggregator=(GstMfxTaskAggregator)"\(GstMfxTaskAggregator\)\ mfxtaskaggregator0"; libva info: VA-API version 1.1.0 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_1_1 libva info: va_openDriver() returns 0 ** (gst-launch-1.0:1868): CRITICAL **: 17:23:55.354: gst_mfx_surface_new_from_pool: assertion 'pool != NULL' failed ERROR: from element /GstPipeline:pipeline0/GstQTDemux:qtdemux0: Internal data stream error. Additional debug info: qtdemux.c(6073): gst_qtdemux_loop (): /GstPipeline:pipeline0/GstQTDemux:qtdemux0: streaming stopped, reason error (-5) ERROR: pipeline doesn't want to preroll. Setting pipeline to NULL ... Freeing pipeline ... Does anyone find the same problem? How to fix it? Thanks in advance for the feedback.

[Mark_L_Intel1]

Hi Lichuan,

Apologized for late response. Did you solve the problem yet?

Could you check the following website and let me know if it helps?

https://01.org/linuxmedia/quickstart/gstreamer-vaapi-msdk-command-line-examples

Mark