Lightworks: The professional editor for everyone - Forum Kunena Site Syndication https://www.lwks.com/ Sun, 15 Sep 2019 17:27:55 +0000 Kunena 1.6 components/com_kunena/template/default/images/icons/rss.png Lightworks: The professional editor for everyone - Forum en-gb Remote rendering - by: SchwobaSeggl https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204964&Itemid=81#204964 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204964&Itemid=81#204964
I think it would be nice to have. You could have a bunch of Linux servers in the basement, seatming and using loud fans, doing their stuff.

But then again, I think it is more of a priority to support other OSses than Mac/OS X, since fast Apple hardware is very expensive. So if I'd need more power for cheap, I'd go for a faster Linux machine with a bigger Nvidia card, not for a rendering farm.


Moderated: This thread started life as part of a much older audio-related thread called Render Server. That thread is now locked because of its age - jwrl.]]>
Codecs / Importing / Exporting / Transcoding Fri, 13 Sep 2019 08:54:09 +0000
How to rotate clip - by: Noddy0211 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204748&Itemid=81#204748 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204748&Itemid=81#204748
Moderated - I've moved this into imports, however, your terminology may be a bit confused in the use of "imports" and "file", but I'm placing it here because of the initial impression of the message i.e. you wished to rotate before importing into Lightworks. Briandrys ]]>
Codecs / Importing / Exporting / Transcoding Mon, 09 Sep 2019 06:47:39 +0000
Help with FFMPEG, have been researching for 7 hours.... - by: jasonpaulmichaels https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204633&Itemid=81#204633 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204633&Itemid=81#204633
PROBLEM>>>Handbrake is adding a few black frames at the front of almost every video I run through it. Essentially what I'm trying to do is convert and compress videos to a single format, settings, etc. We shoot mixed device and have to merge and collect all the content for post-production.

I've tried changing Handbrake to "seconds" ver "chapters" but cannot seem to get that to work in batch. So I moved on to FFMPEG.

I have been trying to very simply trim 1 to 2 seconds of ALL the videos in a single folder and cannot make it work. This is what I've been using for command from within the folder in Terminal on OSX.

>>> or i in *.MP4; do ffmpeg -ss 2 -i "$i" -y "${i%}.MXF"; done

Which is basically my trying to combine two commands that work individually. One for a single file and one for a folder.

>>> -ss 2 -i filename.mp4 -c copy filenameoutput.mp4

and

>>> for i in *.MP4; do ffmpeg -i "$i" -r 50 -c:v mpeg2video -pix_fmt yuv422p -profile:v 0 -level:v 2 -b:v 50000k -maxrate 50000k -bufsize 3835k -minrate 50000k -c:a pcm_s24le -ar 48000 -y "${i%}.MXF"; done

Ultimately, if there is a way I can ditch Handbrake and set up some sort of watch script that sits on a folder using FFMPEG that converts whatever is dumped into that folder, that's what I want to do. If that cannot be done I'd settle for going through Handbrake, separating the videos that have the added black and then trimming with FFMPEG.

Thank you in advance!]]>
Codecs / Importing / Exporting / Transcoding Fri, 06 Sep 2019 22:14:58 +0000
Could I change the frame rate to 15? - by: DragonlordEmily https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204486&Itemid=81#204486 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204486&Itemid=81#204486 Codecs / Importing / Exporting / Transcoding Tue, 03 Sep 2019 18:11:39 +0000 Importing MOV-file dosn't work - by: Dramatist https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204454&Itemid=81#204454 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204454&Itemid=81#204454
Thanks in advanced for reading.]]>
Codecs / Importing / Exporting / Transcoding Tue, 03 Sep 2019 11:38:26 +0000
Videos problem - by: jrubem https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204355&Itemid=81#204355 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204355&Itemid=81#204355 Codecs / Importing / Exporting / Transcoding Sun, 01 Sep 2019 18:19:04 +0000 Video and audio slip out of synch? - by: gljudson https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204285&Itemid=81#204285 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204285&Itemid=81#204285
When I export, after the SECOND cut-and-dissolve, the video and audio are very slightly, but annoyingly, out of synch.

Did I do something to cause this?

Is there something I can do to fix it, or do I need to re-edit the original video and hope I don't create the problem again?

Thank you!]]>
Codecs / Importing / Exporting / Transcoding Fri, 30 Aug 2019 20:22:11 +0000
Can't import .avi files (info dump within) - by: sixoclock https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204283&Itemid=81#204283 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204283&Itemid=81#204283
Spoiler

Is there anything in my Lightworks settings I can tweak to get around this issue?]]>
Codecs / Importing / Exporting / Transcoding Fri, 30 Aug 2019 19:24:07 +0000
Importing Variable Bit rate clips - by: HKGuns https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204206&Itemid=81#204206 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204206&Itemid=81#204206
As I understand, 14.5 is supposed to support variable bit rate clips. However, when I import them they all run at faster than normal speed.

Am I incorrectly importing them?

Please help me edit these clips.]]>
Codecs / Importing / Exporting / Transcoding Thu, 29 Aug 2019 12:18:00 +0000
no video transcoding option - by: paige12358 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204064&Itemid=81#204064 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=204064&Itemid=81#204064 Codecs / Importing / Exporting / Transcoding Tue, 27 Aug 2019 13:02:00 +0000 Video playback not smooth and trouble exporting - by: KingstonArtCo https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=203848&limit=15&limitstart=45&Itemid=81#203848 https://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=203848&limit=15&limitstart=45&Itemid=81#203848
I'm very new to video editing but I'm attempting to pay attention and learn quickly. I would love any suggestions the Lightworks community could offer on two things: first, how can I get my video playback to run more smoothly? It's hitching/choppy and that's making me unable to get a clear sense of the effect of my edits/transitions that I've added. And second, I'm experiencing trouble with exporting the sequence as a media file using the H.264/MP4 setting. The export progress bar runs very slowly, takes hours, and causes my computer to freeze up and shut down.

I'm running Lightworks 14.6 beta.

My PC is an Inspiron 580S
CPU: 530 @ 2.93GHZ
RAM: 4.00 GB
Windows hard drive storage: 156 GB free

Here is the output from MediaInfo on one of the video clips I'm working on:
General
Complete name : C:\Users\Public\Documents\Lightworks\Media\Material\V0030010.A1.proxy.360.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/mp42)
File size : 212 MiB
Duration : 26 min 20 s
Overall bit rate mode : Variable
Overall bit rate : 1 127 kb/s
Encoded date : UTC 2019-08-20 19:32:41
Tagged date : UTC 2019-08-20 19:32:41

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3
Format settings : 1 Ref Frames
Format settings, CABAC : No
Format settings, Reference frames : 1 frame
Format settings, GOP : M=1, N=33
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 26 min 20 s
Bit rate mode : Constant
Bit rate : 1 000 kb/s
Width : 640 pixels
Height : 360 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.145
Stream size : 188 MiB (89%)
Language : English
Encoded date : UTC 2019-08-20 19:33:02
Tagged date : UTC 2019-08-20 19:33:02
Color range : Limited
Color primaries : BT.601 NTSC
Transfer characteristics : BT.601
Matrix coefficients : BT.601
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 26 min 20 s
Bit rate mode : Variable
Bit rate : 125 kb/s
Maximum bit rate : 242 kb/s
Channel(s) : 1 channel
Channel layout : C
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 23.5 MiB (11%)
Language : English
Encoded date : UTC 2019-08-20 19:33:02
Tagged date : UTC 2019-08-20 19:33:02


Any help would be appreciated! Thanks in advance.]]>
Codecs / Importing / Exporting / Transcoding Fri, 23 Aug 2019 20:40:53 +0000