Transcoding on i7 4770k & GTX 770 (docker)

[zjeffer]

Yeah.  HEVC is supported by your CPU/iGPU.  The only codec boxes you can are H264, MPEG2, VC1, and VP8.

Do you mean *not* supported by my CPU/iGPU? I would assume if it's supported I could check them without errors.
According to this table the 4770k's architecture (Haswell) only supports MPEG-2 and AVC. VC1 and VP8 are supported partially (for transcoding, I guess I need both encoding and decoding support?).

The only codec boxes you can are H264, MPEG2, VC1, and VP8.

I now checked only those codecs, and I'm still getting this error when trying to play any HEVC content:

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
i915 does not support EXECBUFER2
[AVHWDeviceContext @ 0x5d5b20540800] libva: /usr/lib/jellyfin-ffmpeg/lib/dri/i965_drv_video.so init failed
[AVHWDeviceContext @ 0x5d5b20540800] Failed to initialise VAAPI connection: -1 (unknown libva error).
[AVFilterGraph @ 0x5d5b20543dc0] Error initializing filters
Error reinitializing filters!
Failed to inject frame into filter network: Input/output error
Error while processing the decoded data for stream #0:0
[libfdk_aac @ 0x5d5b1f25e680] 2 frames left in the queue on closing

If I uncheck HEVC, doesn't that mean it should do software transcoding instead of trying to do hardware accelerated transcoding?

And thanks for the help so far