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Old 4th November 2013, 23:43   #46  |  Link
videofan3d
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Join Date: Sep 2013
Location: Czech Republic
Posts: 321
Bitrate

Quote:
Originally Posted by HWK View Post
Why do you want such high bitrate in first place.
BD format restricts bitrates to ~40 Mbit for video.

H.264 is very effective compression.
Picture quality on 24 mbit is practically identical to professional ProRes codec on 180 mbit.
(ProRes is type on JPEG intra-frame compression and has significant advantage over H.264 for editing in NLE systems + 4:2:2 chroma subsampling - but visual quality in 4:2:0 is not so much higher in it)

And practically, all you video sources are either BD, or recordings from HD camcorder.
All those sources are limited to max 40 mbit/s in H.264.
For second generation of processing you don't need higher bitrate, there is no additional information in the picture.

And if you need to go to NLE intra-frame editing, then convert it to ProRes or DNxHD (using ffmpeg).

Last edited by videofan3d; 4th November 2013 at 23:47.
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