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f48a72cbe3
Read SMPTE 268M DPX in both byte orders (SDPX, XPDS): the first image element, descriptor 6 (luma), 50 (RGB) or 51 (RGBA), at 8, 10, 12 or 16 bits, with 10-bit packing 0, 1 (method A) or 2 (method B) and 12-bit packing 0 or 1. 10- and 12-bit code values open as U16 round(c * 65535 / (2^b - 1)) and come back exactly when written at their depth. No colour transform: the transfer characteristic and colorimetric specification are reported as import notes; extra image elements are reported; the orientation is applied on import. Write big-endian, one unencoded element, at 8, 10, 12 or 16 bits (EncodeOptions::dpx_bits; `dpxBits` on the save commands, MCP and RPC; `--dpx-bits` in the CLI), following the document depth by default. Gray with alpha is written as luma. Creator, project, copyright, creation time, transfer, colorimetric, frame position, frame rate and time code travel as DPX:* text metadata and are written back. Unsupported descriptors, signed or run-length-encoded data and other bit depths return CodecError::Unsupported; malformed and truncated files return errors. Co-authored-by: Brandon Thomas <echelon@gmail.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
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