[RESOLVED] DGDecIM bug or not ?

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Aleron Ives
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Re: [RESOLVED] DGDecIM bug or not ?

Post by Aleron Ives » Fri Apr 10, 2015 1:40 pm

Such a stream would be non-standard though, right? It's my understanding that H.264 requires mod16 dimensions and allows you to specify cropping values to achieve your desired AR, but actually encoding to a non-mod16 resolution would produce a technically invalid stream.

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Re: [RESOLVED] DGDecIM bug or not ?

Post by admin » Fri Apr 10, 2015 3:30 pm

You are correct but the poster did not state that this movie was AVC.

Nico83500
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Re: [RESOLVED] DGDecIM bug or not ?

Post by Nico83500 » Sat Apr 11, 2015 10:44 am

You are right ;)
Movies with a resolution output issue (1920x1088 instead of 1920x1080) with b21 are H264, but VC1 was OK with b21 (output resolution 1920x1080).
So the right resolution is 1920 x 1088 ? Why output resolution is 1920 x 1080, in order to match with 16/9 format ?

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Re: [RESOLVED] DGDecIM bug or not ?

Post by admin » Sat Apr 11, 2015 11:47 am

Yes, 1080 is to match 16:9. But coding is most efficient with 16-pixel blocks, so they are padded out for coding. DGIndexNV shows both the coded and display sizes in the info dialog.

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