Discussion Forums > Technology
Question about encoding
kureshii:
http://wdtv.wetpaint.com/page/H.264+reference+frames+specs One of a few compiled wikis for the WD hardware players. The ref frame limitations aren't strictly 4@1080p and 9@720p, but of course it is nowhere near 16 ref frames at all resolutions either.
Many people I know watching their stuff on WDTV and similar set-top boxes either go for L4.1-compatible encodes or 720p releases. The bloated, WDTV-unfriendly encodes are usually downloaded by those with higher-end (HT)PCs.
Stsin:
I asked about this long ago. It not only helps with standalones, but those with underpowered CPUs that want to view 1080p using DXVA. Most scene groups do this, since they are trying to make it the most compatible for all, not those with a specific setup. Also partially explains why there are so many versions with anime fansubs, unlike the scene. Going to be even more splits with 10bit depth. While high Ref Frames do help in compressing animation, it's ironic that the trend has been increasingly bloated filesizes at such high ref frames...from TV sources! btw, I also think FLAC is a waste. Some groups even convert the AC3/DTS source to FLAC.
I used to purposely look for groups that didn't go above the bluray format, even though my system could play anything. Just to support the ideal of it. But technology improves and the latest GPUs can now do 5.1. And with HTPCs becoming more common as we retire our recent systems (old systems before couldn't do 1080p well without DXVA). I say bring it on. Ordered Chapters, 10bit depth, highly animated softsubs....but still think FLAC is a waste of space.
GadgetAddict:
Oh man, I got real annoyed the first time I inadvertently downloaded something with Ordered Chapters, I had no way (that I know of) to recompile them onto a Blu-ray disc. Top it off, that first one had 16 ref frames :)
Anyhow, when I encode BD-9s, I ALWAYS go for AC3 @ 640kbps, utilizing the MA tracks of course. When I'm working with a BD-25, based on the filesize of the video stream, I might either stick with AC3, go to DTS @ 1.5mbps, or if the video stream is very small, keep the lossless audio.
PS: I don't convert to BD standards because my hardware doesn't support the higher stuff, I just like burning everything to disc...for posterity :)
GadgetAddict:
--- Quote from: Stsin on July 28, 2011, 06:54:46 AM ---Some groups even convert the AC3/DTS source to FLAC.
--- End quote ---
Why on earth would they convert a source like AC3/DTS to FLAC? I can't see ANY benefit in that. The loss has already been incurred once they encoded in AC3/DTS to begin with; it's not as if FLAC would recover the lost data...
kitamesume:
they make it so that it would seem that the copy they've made would look "high quality" if not the best. and please refrain from double posting, you've done it twice on this thread alone.
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