mfxjpegdec output grey picture on windows about gstreamer-media-sdk

[ishmael1985]

Thanks for letting us know about this issue. I tried your pipeline and while I don't get the grey picture, I do get a lot of frame drops, and I am using GStreamer 1.12.2.
You can for now set autovideosink sync=false and see if it resolves the issue for you, though this is a temporary measure. At least I do know the issue of severe frame drops for my case is a timestamping issue, but yours totally has no picture.
You can also try the latest from here:

https://github.com/ishmael1985/gstreamer-media-SDK

Some users don't face the problem you're having though, here's an example:

https://software.intel.com/en-us/forums/intel-media-sdk/topic/740556

[hexray-newbee]

I test the latest version on windows 10 Pro with i7-7700HQ, but it still output the grey.
stout:

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Got context from element 'mfxsink0': gst.mfx.Aggregator=context, gst.mfx.Aggregator=(GstMfxTaskAggregator)"\(GstMfxTaskAggregator\)\ mfxtaskaggregator1";
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstKsVideoSrc:ksvideosrc0.GstPad:src: caps = image/jpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstMfxDec_jpeg:mfxdec_jpeg0.GstPad:sink: caps = image/jpeg, width=(int)640, height=(int)480, framerate=(fraction)30/1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstMfxDec_jpeg:mfxdec_jpeg0.GstPad:src: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx.GstGhostPad:sink.GstProxyPad:proxypad1: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxPostproc:mfxpostproc0.GstPad:src: caps = video/x-raw(memory:MFXSurface), format=(string)NV12, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, chroma-site=(string)jpeg, colorimetry=(string)bt601, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxSink:mfxsink0.GstPad:sink: caps = video/x-raw(memory:MFXSurface), format=(string)NV12, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, chroma-site=(string)jpeg, colorimetry=(string)bt601, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxPostproc:mfxpostproc0.GstPad:sink: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx.GstGhostPad:sink: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:sink: caps = video/x-raw(memory:MFXSurface), format=(string)BGRA, width=(int)640, height=(int)480, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, colorimetry=(string)sRGB, framerate=(fraction)30/1
Execution ended after 0:00:07.739200864
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

stderr:

(gst-launch-1.0:14560): GLib-GObject-WARNING **: invalid cast from 'GstMfxSink' to 'GstVideoOverlay'

** (gst-launch-1.0:14560): CRITICAL **: gst_video_overlay_prepare_window_handle: assertion 'GST_IS_VIDEO_OVERLAY (overlay)' failed
ERROR: from element /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxSink:mfxsink0: Internal error: could not render surface
Additional debug info:
../gstreamer-media-SDK-mfxsink_wip_windows/gst/mfx/gstmfxsink.c(996): gst_mfxsink_show_frame (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxSink:mfxsink0

(gst-launch-1.0:14560): GStreamer-CRITICAL **: gst_object_unref: assertion '((GObject *) object)->ref_count > 0' failed

[ishmael1985]

In your stderr output:

../gstreamer-media-SDK-mfxsink_wip_windows/gst/mfx/gstmfxsink.c(996): gst_mfxsink_show_frame (): /GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstMfxSinkBin:autovideosink0-actual-sink-mfx/GstMfxSink:mfxsink0

You're probably using the older version. Can you pull the latest version from the following repos?

https://github.com/ishmael1985/gstreamer-media-SDK
https://github.com/01org/gstreamer-media-SDK/tree/topic_linux_and_window

[hexray-newbee]

aha, i am sorry for using the older version, the latest version does a better work.

[ishmael1985]

Good to hear. Surprisingly, I re-ran the pipeline with the latest version on my repo as well, and there are no more timestamping issues :)