SVRT vs Hardware video encoder file size/produce time

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LouisV

Member Joined: Aug 10, 2013 18:43 Messages: 50 Offline

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Jul 23, 2019 02:42

Hi

PD17 patch 3005 - I7 7700 3.60Ghz 16mb RAM GeForce GTX 1060 3GB

Original mp4 files 50p: 624 mb + 68 mb +84 mb + title added - Total size 776 mb

Produced mp4 50p: produce method SVRT - output file 793 mb - time to produce 08 seconds
Produce mp4 50p: produce method Hardware video encoder - output file 1.1 GB - time to produce 01min21sec

There is no difference in output quality. Which method is to prefer? How to explain the difference in file size?

Louis V

optodata

Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline

Jul 23, 2019 10:26

While you may not notice a differene in output quality, there clearly is one since the hardware-produced version must have a higher bitrate to give you that bigger file size. If you check the file properties oif each produced clip, you should see that difference. Use MediaInfo, or right-click on each clip in PD and choose View Properties to see the details.

Whenever SVRT is available, it is almost certainly the best choice for fast, high quality output, because only the parts that were changed in PD will be re-rendered by the CPU.

About the only exception is if you have some sections with significant edits, like color changes or GPU-heavy effects. Using hardware to produce the entire clip may be faster than SVRT, which can only use the CPU. If you use SVRT and then see the time remaining start to climb and climb and climb, you can cancel and switch to hardware producing and see if that will produce more quickly.

YouTube/optodata

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