GoPro Hero 7 Black Hyper Lapse takes much longer to render

John-Callahan wrote on 7/15/2019, 10:14 AM

Just got a GoPro Hero 7 Black recently and have been experimenting with rendering. I find something strange when rendering a clip made using the hyper lapse option. Normally on my PC a 4K (25fps) clip of 30min will take about 30min to render using MAGIX AVC encoder. However, for a 2min hyper lapse clip (4K 25fps) takes about 10min using the same encoder and settings.

Comments

j-v wrote on 7/15/2019, 1:20 PM

To me it is pure logic, changes in pictures are very much more than in normal video and with the encoding modes for that tool (HEVC and AVC) it means that more pictureslices are being changed with a result of longer rendertime and higher bitrate needed.

Marco. wrote on 7/15/2019, 1:35 PM

I'd guess it's the resampling causing an encrease of computing power.

fr0sty wrote on 7/15/2019, 5:21 PM

My guess is that the hyperlapse is a different codec that Vegas cannot decode as easily.

j-v wrote on 7/16/2019, 2:48 AM

My guess is that the hyperlapse is a different codec that Vegas cannot decode as easily.

Mine not, it is the same GOPro HEVC or AVC (compatible) codec and such a Timelapse file ( at 0,5 sec) has standard a bitrate of 10.000 or more than those of the video takes.

Former user wrote on 7/16/2019, 3:47 AM

To me it is pure logic, changes in pictures are very much more than in normal video and with the encoding modes for that tool (HEVC and AVC) it means that more pictureslices are being changed with a result of longer rendertime and higher bitrate needed.

Hyperlapse is all about stabilising images, and not having the next frame being greatly different to the previous. that's what hyperlapse is. There is the HEVC component ofcourse, if the gentleman normally edits AVC & is not using intel QSV hardware decoding.

j-v wrote on 7/16/2019, 3:53 AM

Sorry, I thought he was using one of the 10 timelapse possibilities of that GOPro.