Experimental implicit HEIF boxes in AVIF #1222
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Remove a few hundred bytes of container boilerplate for simple images.
Most image features can be extracted from the AV1 OBUs in the mdat box
for the main use cases (non-grid, non-progressive, opaque or
translucid still images with no color profile, no Exif/XMP metadata
and default CICP values).
Warning: This feature is experimental and forbidden by the current
AVIF specification.
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The alternative header reduction method #1432 replaces this one. |
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Remove a few hundred bytes of container boilerplate for simple images. Most image features can be extracted from the AV1 OBUs in the mdat box for the main use cases (non-grid, non-progressive, opaque or translucid still images with no color profile, no Exif/XMP metadata and default CICP values).
Warning: This feature is experimental and forbidden by the current AVIF specification.
Parts of this PR and/or TODOs may be implemented into separate PRs before making this one ready for review.