[FFmpeg-devel] [PATCH v3 0/2] avcodec/dovi - correctly read el_bit_depth_minus8 and ext_mapping_idc

[Cosmin Stejerean]

From: Cosmin Stejerean <cosmin at cosmin.at>

Some DolbyVision samples fail to parse currently due to mis-reading the
el_bit_depth_minus8 field. Upon investigation it seems that the RPU syntax has
been extended in an as of yet undocumented way by adding ext_mapping_idc and
coding it together with el_bit_depth_minus8 together into a single 16 bit
integer with the upper 8 bits for ext_mapping_idc and the lower 8 bits for
el_bit_depth_minus8.

This can be observed in the output of the DoVi verifier, which shows how this
is laid out. This patchset adds the new fields to dovi_meta and implements the
code to parse and write this back out.

Compared to the previous version it moves the fields to the end for ABI
compatibility, bumps the minor version in lavu and splits this into a separate
commit.

Cosmin Stejerean (2):
  lavu/dovi_meta - add fields for ext_mapping_idc
  avcodec/dovi - correctly read el_bit_depth_minus8 and ext_mapping_idc

 libavcodec/dovi_rpudec.c | 7 ++++++-
 libavcodec/dovi_rpuenc.c | 4 +++-
 libavutil/dovi_meta.h    | 2 ++
 libavutil/version.h      | 2 +-
 4 files changed, 12 insertions(+), 3 deletions(-)

-- 
2.42.1