To be utterly correct, It's slightly more complex than that.
It's not about the AMOUNT of compression, it's about the KIND of compression. Intra frames require to look around more frames to be able to decode a given frame. That takes time and math.
DNxHD 36 is VERY HIGH compression, but still very easy to decode since it's I frame only.
And yes, File size does not say anything about quality unless the kind of compression and resolution is the same.
But even then, on a VBR codec a large file may be worse than a small file. Noise free clouds / macro shots are way easier to compress than noisy images where everything is in focus.
Bouke
VideoToolShed
van Oldenbarneveltstraat 33
6512 AS NIJMEGEN, the Netherlands
+31 24 3553311
van Oldenbarneveltstraat 33
6512 AS NIJMEGEN, the Netherlands
+31 24 3553311
----- Original Message -----Sent: Saturday, April 02, 2016 10:28 PMSubject: Re: [Avid-L2] Laptop Media Composer for XAVC editing - best configuration and workflow
Intra-frame codecs are considerably more compressed than DNx, so yes, the files are smaller. The extra compression is what makes them more painful to edit with.
D.
Sent from my mobile phone - please excuse spellung.
On 2 Apr 2016 9:11 p.m., "hartfilms@earthlink.net [Avid-L2]" <Avid-L2@yahoogroups.com> wrote:
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>
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> Thank you, John. I notice that Sony has a plug-in for its AVCI cameras that is supposed to work with AMA. Problems there? I love DNxHD but I have to convince the people responsible for acquisition to record to DNxHD. Are those files larger than AVC Intra? - Jayasri
>
>Sent from my mobile phone - please excuse spellung.
This email has been sent from a virus-free computer protected by Avast. www.avast.com
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Posted by: "Edit B" <bouke@editb.nl>
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