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strukturag / libheif

libheif is an HEIF and AVIF file format decoder and encoder.
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Add read/write support for the Content Light Level Information box #721

Closed 0xC0000054 closed 1 year ago

0xC0000054 commented 1 year ago

This metadata is important for correctly rendering many AVIF HDR images that use a PQ transfer curve. The Content Light Level Information box is described in MIAF section 7.4.4.2 and AVIF section 2.2.3.

Related to https://github.com/AOMediaCodec/libavif/pull/1194

farindk commented 1 year ago

Yes, we should add this in v1.15.0.

farindk commented 1 year ago

For testing: CLLI information is shown in heif-info output.

farindk commented 1 year ago

I have also added support for MDCV (Mastering display colour volume).