Search found 3493 matches

by admin
Tue Apr 24, 2018 7:37 am
Forum: Avisynth Filters
Topic: HDR -> SDR tonemapping
Replies: 226
Views: 5551

Re: HDR -> SDR tonemapping

Earlier I was a bit concerned about whether an external Avisynth+ filter could change the video format, e.g., from YUV420P16 to YV12. Then I realized that is exactly what z_ConvertFormat() does. So I tried it and it is actually quite easy. So I now have a filter that just converts YUV420P16 to YV12 ...
by admin
Mon Apr 23, 2018 5:01 pm
Forum: Avisynth Filters
Topic: HDR -> SDR tonemapping
Replies: 226
Views: 5551

Re: HDR -> SDR tonemapping

OK, good to hear. Of course, there are a lot of ways to map the out-of-gamut values back into range, but it seemed sensible to me to just reverse what is given for 709->2020 in REC 2087.

https://www.itu.int/dms_pubrec/itu-r/re ... !PDF-E.pdf
by admin
Mon Apr 23, 2018 12:27 pm
Forum: Avisynth Filters
Topic: HDR -> SDR tonemapping
Replies: 226
Views: 5551

Re: HDR -> SDR tonemapping

So, we have established that we need to do the 2020->709 conversion and the tonemapping all together on the GPU if we expect CUDA to give us good performance gains. So I have been researching how to do that. Here is my tentative plan for the 2020->709 part. If it pans out then tonemapping can be add...
by admin
Sat Apr 21, 2018 8:37 am
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: [SOLVED] Decoding Error / Artifacts

64 PCIe lanes. Now you're starting to get my attention.
by admin
Fri Apr 20, 2018 9:18 pm
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: [SOLVED] Decoding Error / Artifacts

Thanks, I'll study that carefully.
by admin
Fri Apr 20, 2018 8:24 pm
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: [SOLVED] Decoding Error / Artifacts

Eeww, AMD? Are you sure? :?
by admin
Fri Apr 20, 2018 5:41 pm
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: Decoding Error / Artifacts

Good to hear and thanks for the update.

You should be really envious of gonca's CPU. :P

Waiting for Volta...
by admin
Fri Apr 20, 2018 5:28 pm
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: Decoding Error / Artifacts

If you'd like to give me a sample I can test it on my 1050 Ti and 1080 Ti.
by admin
Fri Apr 20, 2018 2:44 pm
Forum: DGDecNV
Topic: [SOLVED] Decoding Error / Artifacts
Replies: 11
Views: 138

Re: Decoding Error / Artifacts

Yes, please provide a sample of the source video that shows these errors and tell me how to duplicate your issue.
by admin
Thu Apr 19, 2018 8:52 pm
Forum: Avisynth Filters
Topic: HDR -> SDR tonemapping
Replies: 226
Views: 5551

Re: HDR -> SDR tonemapping

You are welcome. It's always my pleasure.