Search found 8 matches

by kliffgomel
Tue Feb 16, 2021 3:00 pm
Forum: DGDecNV
Topic: Feature Requests
Replies: 712
Views: 869768

Feature Requests

I agree that if we are talking about one project, then it seems that the time loss is relatively small. And if we are talking about automating dozens of 4K projects? It will be not minutes, but a day. Anyway, I don't have enough arguments for two interested users...
by kliffgomel
Tue Feb 16, 2021 7:59 am
Forum: DGDecNV
Topic: Feature Requests
Replies: 712
Views: 869768

Feature Requests

In the case when the user, when indexing the source file, demultiplexes the video stream, most likely, he needs to work with the extracted video stream directly, and not with the original container file Please justify this claim. In any case doing this would be highly nontrivial so it's unlikely th...
by kliffgomel
Sun Feb 07, 2021 7:20 am
Forum: DGDecNV
Topic: Feature Requests
Replies: 712
Views: 869768

Feature Requests

In the case when the user, when indexing the source file, demultiplexes the video stream, most likely, he needs to work with the extracted video stream directly, and not with the original container file. In this case, it will be more convenient if DGIndex builds an index for the extracted elementary...
by kliffgomel
Sun Nov 08, 2020 10:51 am
Forum: DGDecNV
Topic: [RESOLVED] Chroma sample location alignment
Replies: 9
Views: 9459

Re: Chroma sample location alignment

In such a case, I would not add any codec options for specifying the chromaloc type unless I was completely sure that this option would match the original video. Perhaps, the command line option for the x265 codec, offered in the dgi index file, with the explicit setting of the '--chromaloc = 2' opt...
by kliffgomel
Sun Nov 08, 2020 9:03 am
Forum: DGDecNV
Topic: [RESOLVED] Chroma sample location alignment
Replies: 9
Views: 9459

Re: Chroma sample location alignment

Still, a purely theoretical question, if you specify the '--chromaloc 2' option in the codec when encoding the source video YUV 4: 2: 0 (type 0), will this lead to errors when decoding the compressed output video?
by kliffgomel
Sun Nov 08, 2020 2:38 am
Forum: DGDecNV
Topic: [RESOLVED] Chroma sample location alignment
Replies: 9
Views: 9459

Re: Chroma sample location alignment

I am only talking about YUV 4: 2: 0 video. Can DGDecNV accurately decode YUV 4: 2: 0 (type 0) video, for example? Link to test 4K video YUV 4: 2: 0 (type 0): https://4kmedia.org/samsung-travel-with-my-pet-hdr-uhd-4k-demo/ Of course, I already checked DGDecNV here myself, decoding is possible. But in...
by kliffgomel
Sat Nov 07, 2020 2:23 am
Forum: DGDecNV
Topic: [RESOLVED] Chroma sample location alignment
Replies: 9
Views: 9459

Re: Chroma sample location alignment

Sorry, I do not understand. DGDecNV only supports video decoding with chromaloc = 2? But what about video decoding with a different type of chroma sample location?
by kliffgomel
Fri Nov 06, 2020 2:09 am
Forum: DGDecNV
Topic: [RESOLVED] Chroma sample location alignment
Replies: 9
Views: 9459

[RESOLVED] Chroma sample location alignment

Not so long ago, the forum discussed the issue of command line compliance for x265 with ITU recommendations in the Chroma sample location alignment part. http://rationalqm.us/board/viewtopic.php?p=11509#p11509 As I understand it, simply adding the --chromaloc 2 parameter for x265 does not actually c...