AuburnSounds / AuburnSounds/gamut

JPEG loading speedup possible?

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#39 2 comments 0 reactions 0 assignees View on GitHub

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enhancement
Dominant language
D
Stars
52
Forks
5
PR merge metrics
No merged PRs in 30d

Description

Graillon diffuse takes 34ms to decode, isn't it a bit much for a 1332 x 1276?

- `JPGD_SUPPORT_FREQ_DOMAIN_UPSAMPLING` adds 7ms by itself

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by profiling the JPEG decode path for the Graillon diffuse image at 1332 x 1276 and compare the reported 34ms with and without JPGD_SUPPORT_FREQ_DOMAIN_UPSAMPLING. The work is done when the source of the decode time is identified and a measured speedup is demonstrated without breaking JPEG loading.

Written by the indexing model from the issue text.

Assessment

Domain
computer-graphics, performance
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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