Lightworks: The professional editor for everyone - Forum Kunena Site Syndication Sun, 29 May 2016 21:02:20 +0000 Kunena 1.6 components/com_kunena/template/default/images/icons/rss.png Lightworks: The professional editor for everyone - Forum en-gb Why doesn't it export in requested resolution? (Screenshot attached). - by: robiwh
Look at these attached screenshots: (also available here:

Simple question: after I *just* selected 240p why did I have to wait a long time (hours in my case), only to have it still produce this giant 1920x1090 render...? As you can see I meticulously selected the lowest possible setting!


Add'l information. Even my source video was 320x180!! I downconverted it with freemake converter, just because the rendering time was sooooo long.

Look, I know I shouldn't be on a core2 duo machine with 4 GB ram and an onboard graphics card ( Intel Graphics Media Accelerator 4500MHD)) . The reason I'm on Lightworks is because Da Vinci Resolve and even Hitfilm Express don't come in 32-bit windows versions anymore. It's all I have. So I desperately need to speed up my editing somehow and get a quick render. I've just started using it. My target is only 720p and I am willing to work at a much, much lower quality (like proxy) before the final render. But I need to figure out how to output to a lower quality. I can't wait many hours. I'm only making a 3-minute clip.

So any help on how I can export in a lower quality (playback is choppy within lightworks) would be GREATLY appreciated.

Thank you. How can I lower the export quality? I will actually mostly be exporting still clips with simple transitions, I'd like to export in a really low version and then after editing to do a higher version.

As you can see the lower resolution, which took hours, didn't work! Why???? Thanks so much, and sorry about this very high level of frustration. I read that lightworks is the best at not being so resource-hungry so this is just very frustrating to me.

thank you.]]>
Codecs / Importing / Exporting / Transcoding Sun, 29 May 2016 13:12:49 +0000
Exported mp4 and color range - by: asea
I noticed there are a few topics concerning this, but I still couldn't figure out how to get what I desire. To me it looks like the export makes the video, when displayed on my computer using VLC or QuickTime player, or uploaded to YouTube, use only RGB values in the range of 16 to 234. As I'm not a professional, I can only speculate if this has to do with so called legal leves. Mediainfo tells me that color range is "limited" in the exported videos, as opposed to "full" in my source videos, while color space, chroma subsampling and color primaries are identical.

Easiest way for me to reproduce this without any kind of source video at all is to create a 100% color bars matte in Lightworks. The black bar is, on my screen, RGB(0, 0, 0) in LW's edit window, but in the exported h264/mp4 it, on my screen, ends up being rendered as RGB(16, 16, 16). The same goes for the white bar, obviously in the other end.

If I export an image sequence, the .PNGs' don't suffer from this. The black bar is RGB(0, 0, 0) when viewed on my computer.

I'd like to export videos in h264/mp4 using the full color range. Is there a way for me to do that directly (like am I missing some setting buried somewhere), or must I export in some other format (what? the image sequence is a bit inconvenient)?]]>
Codecs / Importing / Exporting / Transcoding Fri, 27 May 2016 07:21:42 +0000
Eyeframe Converter cannot import large files? - by: YinYangCraft
So first of all I'm trying to convert a video that I recorded in to a proper format for lwks to read, but the problem is that I get an error. Halfway through the process of importing it in to eyeframe coverter the program crashes and just says "ffmbs.exe has stopped working" then "Unable to import:" the file im trying to import.

So I looked through google a bit and have found no help except to post here about the log. So here it is:


Hopefully we can resolve this problem. And prior to this I had no issues trying to convert smaller file sizes so that may be the problem, I'm not quite sure. The files that I'm trying to convert are all 2GB+.

Codecs / Importing / Exporting / Transcoding Fri, 27 May 2016 03:19:33 +0000
Unable to import into the current project. - by: shirobachi My project has auto FPS(24FPS) my video 30FPS ( I thing that problem is sample rate audio but video hasn't sound, it's silent.

Please help me! I'm sorry my English isn't good!
See you]]>
Codecs / Importing / Exporting / Transcoding Thu, 26 May 2016 11:34:04 +0000
Huge export size and no video when exported - by: EndStormGaming Am I doing something wrong?

Also, when the edited file is exported, I opened the file on movies and TV, which is the default app to open the file type (.mov) on a windows 10 computer, And the audio plays, but no video. I suspect that this may be because my computer is rather slow and bad anyways, but it also might be because the file is huge. Any help appreciated.

Codecs / Importing / Exporting / Transcoding Thu, 26 May 2016 02:11:36 +0000
Random Echoes/Flutters Throughout Movie Audio After Importing MP4 Video - by: cocapjanice
Steps taken:

Created a new project
Imported MP4 video file
Insert the imported video file into the edit timeline.
When playing the edit timeline, random audio echoes/flutters (NOT in the original file) can be heard throughout the movie. It remains even after you export it. When I delete the project and import the same clip into a new project, flutters still appear, but in different places than before.

I've attached a small exported section of the movie as an example of the flutters, but these appear throughout.

Any help would be greatly appreciated! Thanks

Operating System: Windows Vista 32bit
Lightworks version 12.5

CPU: HP Compaq 6910p
Processor: Intel Core 2 Duo
Hard Drive: 143 GB Capacity, 52 GB Free


Complete name : C:\Users\Janie\Desktop\avengers test.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 1.15 GiB
Duration : 2h 22mn
Overall bit rate mode : Variable
Overall bit rate : 1 154 Kbps
Encoded date : UTC 2016-05-24 04:14:27
Tagged date : UTC 2016-05-24 04:14:27
Writing application : HandBrake 0.10.5 2016021100

ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2h 22mn
Bit rate : 987 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 fps
Minimum frame rate : 19.978 fps
Maximum frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.119
Stream size : 1 009 MiB (85%)
Writing library : x264 core 142 r2479 dd79a61
Encoding settings : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=3 / lookahead_threads=1 / 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=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=crf / mbtree=1 / crf=20.0 / 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 2016-05-24 04:14:27
Tagged date : UTC 2016-05-24 04:14:27
Color range : Limited
Color primaries : BT.601 NTSC
Transfer characteristics : BT.709
Matrix coefficients : BT.601
Menus : 3

ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 22mn
Bit rate mode : Variable
Bit rate : 160 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Frame rate : 46.875 fps (1024 spf)
Compression mode : Lossy
Stream size : 164 MiB (14%)
Title : Stereo / Stereo
Language : English
Default : Yes
Alternate group : 1
Encoded date : UTC 2016-05-24 04:14:27
Tagged date : UTC 2016-05-24 04:14:27
Menus : 3

ID : 3
Codec ID : text
Duration : 2h 22mn
Language : English
Encoded date : UTC 2016-05-24 04:14:27
Tagged date : UTC 2016-05-24 04:14:27
Menu For : 1,2
00:00:00.000 : Chapter 1
00:08:02.399 : Chapter 2
00:11:49.292 : Chapter 3
00:15:18.835 : Chapter 4
00:20:33.649 : Chapter 5
00:23:04.333 : Chapter 6
00:29:39.528 : Chapter 7
00:37:24.159 : Chapter 8
00:42:48.149 : Chapter 9
00:50:22.436 : Chapter 10
01:01:04.744 : Chapter 11
01:14:05.191 : Chapter 12
01:28:01.365 : Chapter 13
01:38:20.651 : Chapter 14
01:45:40.256 : Chapter 15
01:51:15.258 : Chapter 16
01:57:47.850 : Chapter 17
02:04:38.760 : Chapter 18
02:09:39.478 : Chapter 19
02:13:10.772 : Chapter 20
Bit rate mode : VBR]]>
Codecs / Importing / Exporting / Transcoding Tue, 24 May 2016 23:06:21 +0000
Problem with exporting - by: Alice darkfern Codecs / Importing / Exporting / Transcoding Sun, 22 May 2016 11:01:37 +0000 m2ts import/playback trouble Lightworks. - by: AceTeller
Hardware: Intel Core I7-6500U CPU 2.50-2.59 Ghz

8 GB ram

video card: Nvidia GEForce gtx 950m

Codecs / Importing / Exporting / Transcoding Sat, 21 May 2016 18:13:42 +0000
How to export a video - by: samira5200 ]]> Codecs / Importing / Exporting / Transcoding Sat, 21 May 2016 17:05:31 +0000 How to import 640x480 in a Letterbox - by: hugly
I want to import 640x480 (VGA, 480p) 4:3 footage without changing aspect ratio.

VGA seems to be stretched always to 16:9 (even when project is set to PAL 4:3)

Other 4:3 formats can be imported in a letterbox, for example:
768x576, 720x540: import window shows pull down menu to select aspect ratio
800x600: no pull down menu, import directly not stretched at 4:3

Any idea truly appreciated.]]>
Codecs / Importing / Exporting / Transcoding Fri, 20 May 2016 09:17:54 +0000
Audio lag within the editing - by: Baddylongway
I've had this issue for a while now, and have just kind of put up with it due to lack of better options. What happens is that I will import files that are just fine on their own, but which will get out of sync within the editing of the program.

It's a few seconds of audio delay, but it's not an actual issue within the material. The length of the material (neither the video or either of the audio channels) isn't affected, and when the final product is exported, it's all perfectly in sync. I've checked framerate etc., but trying to solve the issue IN the program only leads to the finished and exported video being out of sync, so it's obviously an issue within the software itself.

I've been wondering if this has to do with my admittedly not super-beefy laptop, but shutting down any background programs doesn't seem to change anything. Occasionally the sound will be fine until I actually start making cuts, but that's like 1/10th of the times at most.

So uh, yeah. If anyone's got any advice, that'd be greatly appreciated. Again, technically I *can* edit videos like this, but it's far more of a chore than I'm willing to deal with in the long run.]]>
Codecs / Importing / Exporting / Transcoding Thu, 19 May 2016 14:21:51 +0000