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cuda: add SSIM extraction with CPU-compatible options - #1619
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BardieJoensen wants to merge 4 commits into
Open
BardieJoensen wants to merge 4 commits into
BardieJoensen wants to merge 4 commits into
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Skip CUDA extractors in the temporal flush loop to avoid duplicate final scores. Add a regression across thread counts and short clips.
Retain common cleanup after CPU dispatch and finish all-plane downloads before CPU reads. Test pool reuse, GPU completion and CPU PSNR/SSIM output.
Add ssim_cuda with scaling, L/C/S and dB options. Reuse the CUDA PSNR resource helpers and test numerical parity, callback errors and initialization cleanup.
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Stacked on #1553, #1613 and #1660 (CUDA PSNR); only the last commit is SSIM. SSIM-only diff.
Add
ssim_cudafor 8/10/12/16-bit input, with scaling, luminance/contrast/structure output and dB options. Reuse the CUDA PSNR resource helpers.Scores matched CPU results exactly in the tested GCC 13.3/CUDA 13.3 cases. Tests covered scaling boundaries, odd dimensions, identical/inverted frames, callback errors and initialization cleanup. CUDA memcheck/initcheck passed.
Local suites: CPU 23/23; CUDA 30/31, with the existing pinned-picture test crash remaining.
Split from #1563. Depends on the CUDA PSNR contribution.