[gstreamer-vaapi][vpp] two cases fail during doing csc

[wangzj0601]

Test Env:

Platform: APL/SKL
Arch: x86_64
Kernel: 4.16.0
libva commit b3be72a5a110880f70626d7c3bed953cdde124b2
media_driver commit 4a85bb1
gstreamer master branch 9722e896446ed052623d795d8511140fbca7f023
gst-vaapi master branch f5eb4faa5914f3745820e557ac2401a7d738be66

Reproduce Steps:

1. build enc as above lists
2. gst-launch-1.0 filesrc location=/media//encoderbitstreams/gstvpp//768x480.I420 '!' videoparse format=i420 width=768 height=480 framerate=1 '!' videoconvert '!' video/x-raw,format=NV12 '!' vaapipostproc format=7 '!' videoconvert '!' video/x-raw,format=I420 '!' checksumsink2 frame-checksum=false dump-output=true dump-location=cscrgbx.I420
3. error message
   0:00:00.127384980 9391 0xfa59e0 ERROR vaapivideomemory gstvaapivideomemory.c:736:gst_video_info_update_from_surface: Cannot create a VA derived image from surface 0x7f8f84002c00

or
gst-launch-1.0 filesrc location=/media//encoderbitstreams/gstvpp//768x480.I420 '!' videoparse format=i420 width=768 height=480 framerate=1 '!' videoconvert '!' video/x-raw,format=NV12 '!' vaapipostproc format=3 '!' videoconvert '!' video/x-raw,format=I420 '!' checksumsink2 frame-checksum=false dump-output=true dump-location=cscyv12.I420
this case will core dumped probably(failure rate: 2/10

[feiwan1]

Hi @wangzj0601, this issue looks same with #155. we can use #155 only to track the vpp issue if possible.

[wangzj0601]

duplicate with #155, so close it.