Lightworks: The professional editor for everyone - Forum Kunena Site Syndication http://www.lwks.com/ Fri, 22 Aug 2014 01:57:46 +0000 Kunena 1.6 http://www.lwks.com/components/com_kunena/template/default/images/icons/rss.png Lightworks: The professional editor for everyone - Forum http://www.lwks.com/ en-gb MP4 file stuttering every 8~9 seconds on LWKS playback. - by: Iskifi http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77524&Itemid=81#77524 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77524&Itemid=81#77524
The video is recorded directly from the computer, using another software, Open Broadcaster Software v0.625b 64 bit version.

It's a MP4 file, here is the Media Info provided by EyeFrame Converter 1.8.1:

Spoiler

I have tried the conversion by using EyeFrame Converter. The format for editing I used was Mpeg2 I-Frame HD - Proxy Quarter Size, and for delivery I used H264 MP4 Profile Baseline. Still, the same problem persisted.

Playback outside of LWKS is fine.

If anyone has a clue, please, let me know

Thank you all.]]>
Codecs / Importing / Exporting / Transcoding Thu, 21 Aug 2014 23:01:15 +0000
[SOLVED] export MXF with embedded audio - can't get it right - by: LWSdoobre http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77497&Itemid=81#77497 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77497&Itemid=81#77497 just trying to export to MXF with embedded audio but I always end up with seperate audio files even though the "embedded" is ticked..
blahblah.a1.mxf & blahblah.a2.mxf etc..

my source files are AVC which have been upped to prores422hq for the edit with seperate PCM audio tracks...

I would really like everything in one MXF file... really..
BTW is there a free MXF muxer..?

cheers
CD]]>
Codecs / Importing / Exporting / Transcoding Thu, 21 Aug 2014 14:54:01 +0000
MP4 video files are importing as just audio files - by: Vientus http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77452&Itemid=81#77452 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77452&Itemid=81#77452 Codecs / Importing / Exporting / Transcoding Thu, 21 Aug 2014 02:01:14 +0000 cannot upload to youtube? - by: andrewhurrell http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77402&Itemid=81#77402 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77402&Itemid=81#77402 I am trying to use the export to upload to youtube. Every time i get the message that the "username password is invalid".

So i logged out of youtube and succesfully logged back in again using the exact username and password that i was trying in Lightworks.

When trying Lightworks again was told "username password is invalid".
Any ideas ???]]>
Codecs / Importing / Exporting / Transcoding Wed, 20 Aug 2014 15:35:39 +0000
Transcoding and Workflow - by: filmoy http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77370&Itemid=81#77370 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77370&Itemid=81#77370
I'm new to editing and to Lightworks and was advised in a previous thread that, when using AVCHD, I should "transcode" prior to import and then again (on export?). It was suggested I use Eyframe Converter or ClipToolz Convert. I've now downloaded both of these.

Is there a guide that anyone has already written that shows a step by step process of how to do the transcoding procedure? I've searched prior to posting but could not find one. I also understand that one may have to have two lots of files, proxy and intermediate, although again I am clueless at this stage how I would do all this.

I think someone called all this a "workflow" which I assume just means what to do and the order to do it in.

Does anyone have any advice on which transcode options to select for this type of footage (AVCHD)? There seem so many. Somebody suggested ProRes and someone else Mpeg2? Again, I am clueless what this all means.

I tried a test clip on both Eyeframe and ClipToolz and noticed that (1) it took ages to transcode and, (2), the resulting (transcoded) clip was about 10 times the size of the original. As my AVCHD footage is about 15GB that means my transcoded footage would require 150GB of space (and it's only a 3 minute film!). Is this normal?

Any pointers would be appreciated. Thanks.]]>
Codecs / Importing / Exporting / Transcoding Wed, 20 Aug 2014 10:32:11 +0000
Not seeing 4K output options (or anything greater than 1080p), (11.51 pro/paid version) - by: AdrianoDirector http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77170&Itemid=81#77170 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77170&Itemid=81#77170
When I click on "Project project_name" in the top left corner, and select the "Video" tab at left, I see an "Output format" pull-down menu with nothing greater in resolution than 1080p.

I have a UHD source file, which is all I put in my edit.

When I follow instructions in the video & manual, dragging the Export Icon over the edit, the Export Tool that opens up, shows a greyed-out "Size" line which lists HD 1080 etc., and I'm not able to select another option.

In System Settings, Show Licensed Options, Under License(s) it shows Lightworks Pro.

Any suggestions on how to do 4K output? Can't find any more info on this in the manuals or in the videos. I am running on Fedora Linux.

Thanks!!!
-A]]>
Codecs / Importing / Exporting / Transcoding Mon, 18 Aug 2014 04:51:30 +0000
Importing MP3's - by: Blenderite http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77152&Itemid=81#77152 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77152&Itemid=81#77152
I just recently started with Lightworks and am loving what I can do so far!!!

What I really am having problems with is getting Lightworks to import my MP3 files. It just won't.

Here is the info from MediaInfo.



These MP3's are coming straight off incompetech so I don't want to have to convert every single one just to import. Thanks for the help!!!]]>
Codecs / Importing / Exporting / Transcoding Mon, 18 Aug 2014 00:50:44 +0000
video playback freezes every 2 second - by: ashydsmithy http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77114&Itemid=81#77114 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77114&Itemid=81#77114

UPDATE: After attempting to use this file with mediainfo, I got the following info (seen in attachment)
Cheers ]]>
Codecs / Importing / Exporting / Transcoding Sun, 17 Aug 2014 09:59:00 +0000
Cannot export - failed to initialize rendering engine - by: Bst1337 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77071&Itemid=81#77071 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77071&Itemid=81#77071
Just installed the free version. I wanted to export my video (only youtube format is available), but I can't.

I get the error: "Internal error: Failed to initialize rendering engine."

Any help??


BR
Bst]]>
Codecs / Importing / Exporting / Transcoding Sat, 16 Aug 2014 14:06:24 +0000
Successfully imported video clips, but can't edit or preview anything... - by: jsierra http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77016&Itemid=81#77016 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=77016&Itemid=81#77016
I can see the timeline, and can see the clips information on the timeline, but whenever I click on a part of the timeline, I get the same spinning disc.

If I hit 'play' in the monitor (preview window or whatever) I get the spinning disc.

The app doesn't crash - it just throws up a spinning disc, freezes for a little bit, then comes back. However I can't preview anything, edit anything, or really do anything.

I'm running this on a laptop. Here are the specs.
Windows 8
HP Envy i7/2.4gHz Dualie
12GB RAM
Intel HD 4600

Yeah, the graphics card isn't exactly the beastliest, but it should be adequate. I've edited video on this laptop using other commercial software and I'm confident that it'll do. I feel like this is a configuration/codec issue. I installed Quicktime separately(the clips are MOV files, so I figured that might be part of the issue) but that hasn't helped.

MediaInfo output on the clip:

General
Complete name : C:\Users\Ian\Videos\MVI_9794.MOV
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt
File size : 445 MiB
Duration : 1mn 19s
Overall bit rate : 46.9 Mbps
Encoded date : UTC 2014-08-13 07:19:27
Tagged date : UTC 2014-08-13 07:19:27

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L5.0
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=12
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1mn 19s
Bit rate : 45.3 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Original height : 1 088 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.912
Stream size : 430 MiB (97%)
Language : English
Encoded date : UTC 2014-08-13 07:19:27
Tagged date : UTC 2014-08-13 07:19:27
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.601

Audio
ID : 2
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : sowt
Duration : 1mn 19s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 14.6 MiB (3%)
Language : English
Encoded date : UTC 2014-08-13 07:19:27
Tagged date : UTC 2014-08-13 07:19:27]]>
Codecs / Importing / Exporting / Transcoding Fri, 15 Aug 2014 16:15:19 +0000
Help: Video blurs with recorded movement - by: MOC-Michael http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76991&Itemid=81#76991 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76991&Itemid=81#76991
This is my first time posting, sorry if this is in the wrong section.

I'm experiencing a problem where my videos are blurring when there is movement recorded by the camera.
E.g. someone rapidly moves their arms or moves around a bit on a chair.

The footage is recorded at 1080p and imports into Lightworks fine.
There is no blurring on the source .MTS file recorded from the camera.

I originally thought this was only after it was exported, however I went back through the editor but I could even see the blur on each frame (so the blur embedded into the video some how).

Info:
I have already completed around 2-3 hours of footage (5 different videos) with my same method of editing, and all my other videos came out fine.
I'm using 3 different sets of footage, importing them all into the Lightworks editor and cutting bits out to make a full section (same with audio - 3 different sets and picking the best quality for who ever is speaking).
I'm running Windows 7 Professional 64Bit with a 3.2ghz Intel Core i5 processor and 8gb of RAM.
I'm exporting using the Free YouTube export.

Here is a MediaInfo report of the exported video file.
General
Complete name : C:\Edit #1.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 254 MiB
Duration : 5mn 3s
Overall bit rate mode : Variable
Overall bit rate : 7 024 Kbps
Encoded date : UTC 2014-08-13 03:39:40
Tagged date : UTC 2014-08-13 03:39:40

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Format settings, GOP : M=3, N=33
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 5mn 3s
Bit rate mode : Variable
Bit rate : 6 864 Kbps
Maximum bit rate : 8 000 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.298
Stream size : 248 MiB (98%)
Language : English
Encoded date : UTC 2014-08-13 03:39:41
Tagged date : UTC 2014-08-13 03:39:41
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 5mn 3s
Bit rate mode : Variable
Bit rate : 157 Kbps
Maximum bit rate : 279 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 5.66 MiB (2%)
Language : English
Encoded date : UTC 2014-08-13 03:39:41
Tagged date : UTC 2014-08-13 03:39:41

I've re-imported some of the footage into a new Lightworks project, and the whole clip is crystal clear, even in movement (basically I cant replicate the issue).

I will probably just start my edit again, but if anyone has some insight it would be much appreciated - I really want to try and avoid this happening again.

Cheers,

Michael.]]>
Codecs / Importing / Exporting / Transcoding Fri, 15 Aug 2014 00:35:40 +0000
Film and sound do not match - by: Timo2000 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76974&Itemid=81#76974 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76974&Itemid=81#76974
Video data
Frame rate: 25 or 24 or 30 (to test out)
WMV - VC 1 - xbox 360HD - 1080P

Audio data
Mode: CBR - 1 pass
Channels: 5.1
Sample rate: 44.1 or 48 or 96 (to test out)

I convert the files to mp4 with different free converter and the outcome is always perfect and sound and film are synchronized. However, when I start open the video with Lightworks and and play it, sound and movie are not synchronized anymore. It only happens with Lightworks.

What may be the reason?

Please help.

Thank you!]]>
Codecs / Importing / Exporting / Transcoding Thu, 14 Aug 2014 20:39:46 +0000
What's the smallest file format can Lightworks export? - by: AndrewGuo http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76959&Itemid=81#76959 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76959&Itemid=81#76959

Thanks.]]>
Codecs / Importing / Exporting / Transcoding Thu, 14 Aug 2014 15:37:21 +0000
[solved] Help! My edit is trapped and it can't get out! - by: David Rasberry http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76937&Itemid=81#76937 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76937&Itemid=81#76937 The problem is I can't export a QT movie to a QT movie, or any MOV or MP4 format as the codec is being used to play the footage.
Frame sequence exports don't work with this. I get a fail message
Export formats that do work crop the sides to 16:9.
Fill to edit with DPX renders of the original doesn't work.
How do I get this out intact? ]]>
Codecs / Importing / Exporting / Transcoding Thu, 14 Aug 2014 12:22:39 +0000
Canon files in 10 bit with Timecode? Eyeframe or Cliptoolz? - by: Schloime http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76872&Itemid=81#76872 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76872&Itemid=81#76872
I'm still in search of a practical way to convert Canon T3i files into 10 bit with timecode attached (the reason shouldn't be part of the discussion).

With Eyeframe I have all kinds of options, including cutting off the extra 8 pixels (1920x1088), but I didn't find a way to have 10 bit DNxHD.

With Cliptoolz I get 10 bit with timecode, but I only can scale the output, not crop it. So the garbage in the lower 8 pixelrows gets scaled, too.

Is there any option how I could change the commandline in Eyeframe, or did I oversee some option in Cliptoolz?

Could anyone give me some advice?]]>
Codecs / Importing / Exporting / Transcoding Wed, 13 Aug 2014 19:52:43 +0000
[Solved] I can't export my video at all- free version - by: spacechurro http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76855&Itemid=81#76855 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76855&Itemid=81#76855 I understand not providing 1080p, but I assumed that free version would have limits, but I literally can't do anything, now! I can't export a video at all! Everything except "Lwks archive" or "youtube" has the words "PRO" Next to it. What's the point of free lwks, anyways? Is it just a trial version? I'm very pissed, right now, because I just finished a video, but, I tried youtube, but when I login it says that i'm not 'verified' or something... Help please? I was told over the internet that people are using it normally, and just can't do certain things pros use, YOU KNOW CAUSE IT'S PRO VERSION, IT IS FOR PROS, WHY IS EXPORTING ONLY FOR PROS?]]> Codecs / Importing / Exporting / Transcoding Wed, 13 Aug 2014 15:05:29 +0000 Glitches (Horizontal Tearing & Repeated Frames) in De-interlaced Video Export - by: amp88 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76845&Itemid=81#76845 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76845&Itemid=81#76845
I've hit a strange problem and I've exhausted my (admittedly pretty limited ) knowledge of how to diagnose and remedy it.

Some background - MediaInfo for the source files for my project:


These are interlaced files in a container format which Lightworks won't import directly, so I loaded them into VirtualDub (using the common 'DirectShowSource' AVS command) and applied a de-interlace filter (with the settings shown below) and re-compressed them with x264.

This image is hidden for guests. Please log in or register to see it.
MediaInfo output for the resultant video:


I imported these de-interlaced videos into Lightworks and started creating my edit. I noticed that I was unable to play the videos in my edit fluidly from within Lightworks. I'd get a few frames in then I'd be stuck with a frozen video frame until I paused and waited a few seconds. I'm not sure why this is, since I can normally play 1080p30 videos at a much higher bitrate back quite well.

Anyway, I did a bit of work on my edit then went to export a portion of what I'd done and that's when I ran into real problems. In my exported footage I'm seeing horizontal tearing and occasionally I'm getting repeated frames which appear to be from earlier in the video (e.g. frame # 1, 2, 3, 4, 3, 5, 6). These problems are not present in the source files. Furthermore, the exact nature of these problems doesn't consistently happen in the same way or at the same places on export.

As a quick test, I exported a short section of one of the clips 10 times in a row (using the export settings below) without making any changes between exports.

This image is hidden for guests. Please log in or register to see it.
I then loaded each of those 10 short clips into VirtualDub and exported them as an image sequence. The 200th frame from each of the 10 clips is shown below (click for high res):

This image is hidden for guests. Please log in or register to see it.
As you can see, the exact location of the horizontal tearing is not consistent across each of the frames. Additionally, the degree of the 'repeated previous frames' varies from clip to clip. One of the clips is available here. If you look at frame # 129 you can see this 'repeated previous frame', which is not present in the source video. It's also not present within Lightworks if I go through the edit frame by frame.

If you need any more information please let me know and I'll try and provide it.

I'm hoping there's someone out there who can help me out, because at the moment I'm totally stuck for ideas and I'm feeling a bit desperate about this. Thanks for reading.]]>
Codecs / Importing / Exporting / Transcoding Wed, 13 Aug 2014 13:19:58 +0000
Same m4a file will import and play into lw's 32-bit but not 64-bit - by: bugsinherteeth http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76773&Itemid=81#76773 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=76773&Itemid=81#76773
I'm wondering if there's advantages to 32-bit?? insights regarding this appreciated! best.]]>
Codecs / Importing / Exporting / Transcoding Tue, 12 Aug 2014 16:11:17 +0000