JFJochBitShuffleCompressor::Compress now takes a dest_size and returns a
negative value when the compressed output would not fit, instead of writing
past the destination buffer. The check is lazy: before each block it verifies
the remaining space still covers that block's worst case (mirrored by the new
MaxCompressedBlockSize helper, consistent with MaxCompressedSize so a dest
sized to MaxCompressedSize never fails). On overflow the dest content is
undefined - no rescue.
The receiver uses this to compress directly into the writer buffer slot and
drop just the oversized frame instead of pre-reserving the full worst-case
image size next to the per-image CBOR metadata.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
leonarski_fandClaude Opus 4.8