I need to encode a smpte170m color space MPEG-2 ("mpeg2video") video to 10 bit x265 (libx265, with FFMPEG). Hoping to use yuv420p10le, but any suggestions are welcome.
Source video is in smpte170m color space and NTSC:
pix_fmt=yuv420p level=8 color_range=tv color_space=smpte170m color_transfer=smpte170m color_primaries=smpte170m chroma_location=left field_order=progressive
Is smpte170m space even compatible with 10 bit such as yuv420p10le?
Should I keep smpte170m space or convert it to BT907 or other?
Resolution (after scaling) will be approximately 848x304. Which color space is more widely supported for such resolution?
Can FFMPEG/libx265 perform/compute correct color space conversion or it simply changes symbols in metadata without computing actual color conversion?
Encoded video is purely for personal use and will be played 99% of time on PC/android phones (No HDR screens at present).
Does NTSC standard still apply AFTER encoding to x265 or it becomes irrelevant? (say encoding to Matroska)
The only limitation I have in choosing a destination color space, etc (in encoded/destination video) is so that its play is supported in hardware on modern android phones/tablets/PC.