VAAPI RGB limited range

[xrataj00]

Hi,

When I use vaapi element (vaapisink, vaapipostproc) with RGB image the
output has limited range. Example pipeline:

gst-launch-1.0 filesrc location=Grayscale_Staircase-768x576.png ! decodebin
! imagefreeze ! videoconvert ! video/x-raw,format=RGBx ! vaapisink

Any ideas?

RGB:
<http://gstreamer-devel.966125.n4.nabble.com/file/t377819/RGB.png>

NV12:
<http://gstreamer-devel.966125.n4.nabble.com/file/t377819/NV12.png>

libva info: VA-API version 1.3.0
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_2
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.3 (libva 2.2.0)
vainfo: Driver version: Intel i965 driver for Intel(R) Ivybridge Mobile -
2.2.0
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Simple            : VAEntrypointEncSlice
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileH264StereoHigh         : VAEntrypointVLD
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc
      VAProfileJPEGBaseline           : VAEntrypointVLD




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