Re-introduce after the iter5b-α' revert. Helper maps VAProfile to V4L2
OUTPUT-side FOURCC, used at CreateConfig in commit B to populate the
previously-dead object_config->pixelformat field. β reads from there
at CreateContext (commit C).
Single source of truth for the profile→pixelformat mapping; mirrors
the per-profile probes in config.c::RequestQueryConfigProfiles
(lines 138-188).
Register codec.c in meson.build sources, codec.h in headers.
Signed-off-by: claude-noether <claude-noether@reauktion.de>
Add a small helper that maps a VAProfile to its V4L2 OUTPUT-side
pixel format FOURCC. Single source of truth, mirrors the per-profile
probes in config.c::RequestQueryConfigProfiles (lines 138-188).
Used by commits B + C in this series:
- commit B: populate object_config->pixelformat at CreateConfig
- commit C: surface.c reads the populated field to set OUTPUT format
per-profile instead of hardcoded H264_SLICE
Register in meson.build sources + headers.
Signed-off-by: claude-noether <claude-noether@reauktion.de>
claude-noether