16 bit / HIGH_BIT_DEPTH compiler flag doesn't seem to work

[Janani T E]

Reported by Ben B [benlcb785] on "2020-09-04T11:42:13.555411+00:00"

### General Info

I’m trying to compile a version of x265 with 16 bit support for color profiles like **yuv422p** or **gray16le** for video encoding with ffmpeg. I am not sure if this is possible. The description of the compile flag says it enables 16bit support. The CLI flag `--output-depth, -D 8|10|12` from the documnetation doesn’t mention a 16 bit option.

To enable 16 bit support I am compiling the current commit on this git with `HIGH_BIT_DEPTH` set to `ON`.

### Expected behaviour

`user@ubuntu:~$ ./x265 -V` 
`x265 [info]: HEVC encoder version 3.4+23-gb31be54a3` 
`x265 [info]: build info [Linux][GCC 7.5.0][64 bit] 10bit+16bit` 
`x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX`

### Actual behaviour

`user@ubuntu:~$ ./x265 -V` 
`x265 [info]: HEVC encoder version 3.4+23-gb31be54a3` 
`x265 [info]: build info [Linux][GCC 7.5.0][64 bit] 10bit` ←No indication of 16 bit support   
`x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX`

[Janani T E]

@Ben B Please find the new link for the issue you created earlier .