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EXR codec #1441

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totaam opened this issue Feb 15, 2017 · 1 comment
Closed

EXR codec #1441

totaam opened this issue Feb 15, 2017 · 1 comment
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@totaam
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totaam commented Feb 15, 2017

Now that we have support for 10-bit per channel in both the server (#909) and the client (#1309), 10-bit video encoding is planned (#1308 for nvenc, #1310 for vpx) so it makes sense to also support a 10-bit non-video compression format. See also #784 for BPG.

EXR also supports stereo modes (#1316) and could potentially help us replace PNG with something faster / better? The list of Compression methods is not particularly impressive: RLE and ZIP for lossless!

Both openexr and jxrlib have mingw64 ports already.

Links:

  • jxrlib: open source implementation of jpegxr - hosted on codeplex (yuk - doesn't work properly), they have EXE files in their repository! (WTH!) no documentation, not maintained?
  • openexr: OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications., some documentation here: Reading and Writing OpenEXR Image Files with the IlmImf Library - though this uses file or mmap IO... PITA.
@totaam totaam added this to the future milestone Jan 23, 2021
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totaam commented Mar 26, 2023

No fast enough implementation.

@totaam totaam closed this as not planned Won't fix, can't repro, duplicate, stale Mar 26, 2023
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