Welcome, Guest
Username Password: Remember me
  • Page:
  • 1

TOPIC: GoPro Clip laggy in edit/sequence

GoPro Clip laggy in edit/sequence 9 months, 3 weeks ago #159614

  • paulturbo
  • Pro User
  • OFFLINE
  • Expert Boarder
  • Posts: 139
  • 9 months, 3 weeks ago
Hi guys
I have a bunch of clips I am using for a short video. My source files are .MTS from handycam and GoPro3 clips that are .m4v files.

The MTS files import and work perfectly in LWK's. The GoPro how ever are a different deal. Firstly the .MTS files were 25fps and GoPro 29fps so I use handbrake to convert the file to 25fps.

My issue is that when I play back my sequence or edit the gopro clips get laggy. All my material is stored on an external USB3.0 drive with a 2.5" disk.

Here is the media info from the goPro clip
General
Complete name : Z:\Testimonial\gopro\GoPro25fps\Gopr0867-1.m4v
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 1.08 GiB
Duration : 17 min 39 s
Overall bit rate mode : Variable
Overall bit rate : 8 758 kb/s
Encoded date : UTC 2017-10-24 20:16:19
Tagged date : UTC 2017-10-24 20:16:19
Writing application : HandBrake 1.0.7 2017040900

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings, CABAC : Yes
Format settings, RefFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 17 min 39 s
Bit rate : 8 591 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.166
Stream size : 1.06 GiB (98%)
Writing library : x264 core 148 r2708 86b7198
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2017-10-24 20:16:19
Tagged date : UTC 2017-10-24 20:16:19
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 17 min 39 s
Bit rate mode : Variable
Bit rate : 160 kb/s
Channel(s) : 2 channels
Channel(s)_Original : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 20.2 MiB (2%)
Title : Mono / Mono
Language : English
Default : Yes
Alternate group : 1
Encoded date : UTC 2017-10-24 20:16:19
Tagged date : UTC 2017-10-24 20:16:19


All help appreciated
Thanks Paul
Laptop: Win 10 intel i7, 2.50ghz 64bit 16GB Ram geforce GTX850m
Camera: Sony HDR PJ760V, GoPro HDHero2, Brinno time lapse
Mic: Rhode Videomic Pro
Lightwork Pro Licence

Re: GoPro Clip laggy in edit/sequence 9 months, 3 weeks ago #159616

  • hugly
  • OFFLINE
  • Platinum Boarder
  • Posts: 14625
  • 9 months, 3 weeks ago
Hi,

You can try to tweak Handbrake parameters (as a starting point: disable cabac and reduce key_int to 30), but that can take time testing different parameters and might be unsuccessful, depending on your computer. Another way would be to use Eyeframe Converter for frame rate conversion to MPEG2 I-frame HD format.

Have you tried to use internal proxies?
It's better to travel well than to arrive...
Last Edit: 9 months, 3 weeks ago by hugly.

Re: GoPro Clip laggy in edit/sequence 9 months, 3 weeks ago #159617

  • paulturbo
  • Pro User
  • OFFLINE
  • Expert Boarder
  • Posts: 139
  • 9 months, 3 weeks ago
Hi Hugly
I used to use proxies for my older machine but once I got this one and got to lwks V12.0+ I have just been directly importing. To be honest using proxies with eyeframe was more than I can handle every now and then the proxies would get messed up and my project ruined.... I think eyeframe has bugs and honestly I just don't want to deal with other software. Just getting by on lwks is enough of a test

Is there a better way/workflow with Lwks14?
Laptop: Win 10 intel i7, 2.50ghz 64bit 16GB Ram geforce GTX850m
Camera: Sony HDR PJ760V, GoPro HDHero2, Brinno time lapse
Mic: Rhode Videomic Pro
Lightwork Pro Licence

Re: GoPro Clip laggy in edit/sequence 9 months, 3 weeks ago #159624

  • hugly
  • OFFLINE
  • Platinum Boarder
  • Posts: 14625
  • 9 months, 3 weeks ago
Eyeframe Converter has bugs, but it's still very usefull with most intermediate formats provided, but YES, with V14.0 they've invented an amazing internal proxy workflow which increases editing performance significantly. The trade off is lower resolution during editing.

How to create and enable proxies, please see: www.lwks.com/index.php?option=com_kunena&func=view&catid=8&id=142609&Itemid=81#143041
It's better to travel well than to arrive...

Re: GoPro Clip laggy in edit/sequence 9 months, 3 weeks ago #159647

  • paulturbo
  • Pro User
  • OFFLINE
  • Expert Boarder
  • Posts: 139
  • 9 months, 3 weeks ago
Thanks Hugly that is a bit of info there!
Laptop: Win 10 intel i7, 2.50ghz 64bit 16GB Ram geforce GTX850m
Camera: Sony HDR PJ760V, GoPro HDHero2, Brinno time lapse
Mic: Rhode Videomic Pro
Lightwork Pro Licence
  • Page:
  • 1
Time to create page: 0.45 seconds
Scroll To Top