Lightworks: The professional editor for everyone - Forum Kunena Site Syndication http://www.lwks.com/ Mon, 24 Nov 2014 14:36:37 +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 How to export Avid DNxHD 220 format - by: Song-CAMP http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83494&Itemid=81#83494 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83494&Itemid=81#83494 Codecs / Importing / Exporting / Transcoding Sun, 23 Nov 2014 21:02:37 +0000 AVCHD and MP4 Best Transcoding Practices in Lightworks 12 - by: madstork http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83409&Itemid=81#83409 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83409&Itemid=81#83409 windows 8.1 machine, and seeking time-sensitive advice on best transcoding practices upon import for jobs which mix footage from consumer and Prosumer camera footage, and audio from an external recorder..

My better footage is .m2ts/h.264 w/AC-3 audio at 24mbps
My lesser footage is .mp4/h.264 w/AAC audio at 12.8 mbps


I currently have a test job shoot with both source formats at 720p/59.94
(but also have some gigs in the queue with the better camera's files recorded at 1080/24p).

1.
I have been informed elsewhere in this forum and via study that I'll want to transcode to an All-Intra format. Wouldn't every option in Lightworks 12 provide that?

2. my choices seem to be:
- MOV files w/ either a) DVCPRO 100 codec or b) UYVY
- MXF files w/ fixed DVCPRO 100 compression
- AVI files w/
a) DVCPRO100
b) YUYV
c) UYUV
d) Matrox Matrox YUYV HD 8-bit
e) Matrox Mpeg422P@HL w/ optional bitrates from 50 thru 250


I want to preserve best image quality and a fullest range of available tools within the program of course.

I don't have a functional understanding of why there are these options, nor under which circumstances they are best put to use.

Would anyone be willing to offer me a general primer lesson or link, and MORE IMPORTANTLY, specific advice for my with regard to my elements?

I will be editing events for now in order to become acquainted with the software and discover it's merits and limitations (if any), and will be starting with all 720p/59.94 footage, and an externally recorded audio track - if that information turns out to be pertinent to this decision.

3. When I move on to mixed source format editing, does each unique source format require different transcoding choices for optimizing the image, or will one transcoding choice be sufficient for each source format?

4. I'm also utilizing a Zoom H4N for external master audio.
It is PCM audio at 48k/16bit Stereo, running at 1.536 kbps.

Do audio files get transcoded as well, or simply linked/copied?


grateful for your time and input.
Thank you
d

PS - currently using the free version with intent to buy outright, if I can manage to get up to speed with this toolset.]]>
Codecs / Importing / Exporting / Transcoding Sat, 22 Nov 2014 08:23:00 +0000
Exporting Edits. - by: emkayman http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83378&Itemid=81#83378 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83378&Itemid=81#83378
I have completed my Edit and want to export it to either an external HD or a DVD.

Using the Export tool, I watch the export building and see the file created in the HD Folder, but when it completes, it simply disappears and I get a message "The system cannot find the file specified".

If I try to go direct to DVD electing a filename creation, I get "Failed to create output filename path not found".

If I try to go direct to DVD allowing automatic filename creation, I get "Unable to create/write file"

Is there a known problem or am I just lucky?]]>
Codecs / Importing / Exporting / Transcoding Fri, 21 Nov 2014 11:39:18 +0000
Exporting to stills ignores effects - by: carlosn http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83323&Itemid=81#83323 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83323&Itemid=81#83323

I can export the edit to a movie format of my choice, and the resulted export captures the exact contents of my edit, effects and all. However, I needed to export to stills and the resulting JPEG files are stills from the underlying clip rather than the contents of the actual edit (i.e. with effects). In fact, even the folder name LW creates automatically is based on the file name of the clip, rather than the edit name.

I did both movie and still exports at the same time from the same exact dialog box to make sure I wasn't accidentally selecting the wrong source.

Can someone explain to me if I'm doing something wrong or expecting the wrong results?

Thanks
Carlos]]>
Codecs / Importing / Exporting / Transcoding Thu, 20 Nov 2014 14:09:05 +0000
transcoding failing - by: MagneticDuck http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83286&Itemid=81#83286 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83286&Itemid=81#83286
I read some forum posts about this, and it seems that transcoding into another codec like the MPEG I Frame helps. I don't see any options in the video transcoding dialog for that particular one, but hopefully something there could move me in the right direction. Unfortunately, when I try to import the video through transcoding, I get the error "Can't transcode media (codecs expect broadcast sizes/frame-rates)". I have no idea what to do, any help would be appreciated.

Working on an arch linux machine.]]>
Codecs / Importing / Exporting / Transcoding Wed, 19 Nov 2014 22:22:41 +0000
Import gives black video with audio OK or in some cases gives no video just audio - by: Swedde http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83274&Itemid=81#83274 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83274&Itemid=81#83274 I am running windows7 x64 and Lightworks 12.0.1.A x64 Pro.
Here is a picture of the import window in Ligtworks.




As you can see two of the clips show as 16-bit audio and one clip as a black video.
After import they become just that.
Every player on my computer plays them OK. VLC, Windows Media Player, MHC-HC, and Qicktime.
Every other video/movie program opens them OK. Avidemux, Virtualdub, Adobe Premiere Elements and Adobe Premiere Pro.
After importing one "black" video into Premiere Pro and then exporting it, it opens OK in Lightworks.
Here is what Mediainfo reports about the formats. First original clip and second the Premiere Pro exported clip. There are only minor differences which I have marked as cursive.

First clip
General
Complete name : Sl..2005 del 2.avi
Format : AVI
Format/Info : Audio Video Interleave
Commercial name : DVCPRO
Format profile : OpenDML
File size : 2.92 GiB
Duration : 13mn 59s
Overall bit rate mode : Constant
Overall bit rate : 29.8 Mbps
Recorded date : 2005-07-16 19:30:10.000

Video
ID : 0
Format : DV
Commercial name : DVCPRO
Codec ID : dvsd
Codec ID/Hint : Sony
Duration : 13mn 59s
Bit rate mode : Constant
Bit rate : 24.4 Mbps
Encoded bit rate : 28.8 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 4:3
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 : Interlaced
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.357
Time code of first frame : 00:04:37:20
Time code source : Subcode time code
Stream size : 2.81 GiB (97%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 13mn 59s
Bit rate mode : Constant
Bit rate : 1 024 Kbps
Channel(s) : 2 channels
Sampling rate : 32.0 KHz
Bit depth : 16 bits
Stream size : 102 MiB (3%)
Alignment : Aligned on interleaves
Interleave, duration : 40 ms (1.00 video frame)

Second clip
General
Complete name : Sl..2005 del 2-exported.avi
Format : AVI
Format/Info : Audio Video Interleave
Commercial name : DVCPRO
Format profile : OpenDML
File size : 2.97 GiB
Duration : 13mn 59s
Overall bit rate mode : Constant
Overall bit rate : 30.3 Mbps
Recorded date : 2014-11-05T06:47:49+01:00

Video
ID : 0
Format : DV
Commercial name : DVCPRO
Codec ID : dvsd
Codec ID/Hint : Sony
Duration : 13mn 59s
Bit rate mode : Constant
Bit rate : 24.4 Mbps
Encoded bit rate : 28.8 Mbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 4:3
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 : Interlaced
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 2.357
Time code of first frame : 00:04:37:20
Time code source : Subcode time code
Stream size : 2.82 GiB (95%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Duration : 13mn 59s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 154 MiB (5%)
Alignment : Aligned on interleaves
Interleave, duration : 1000 ms (24.99 video frames)
Interleave, preload duration : 1000 ms

I have used Gspot to list codecs and filters on my computer and there is a lot of them.
Gspot lists some as error. All of them are missing in the folder ...Lightworks\plugins.

Picture



Someone can tell me what the problem is?
B.t.w. is "Commercial name" DVCPRO in Mediainfo the same as codec?]]>
Codecs / Importing / Exporting / Transcoding Wed, 19 Nov 2014 15:35:59 +0000
Transcode clips after import - by: buenzel http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83160&Itemid=81#83160 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83160&Itemid=81#83160
when starting my project, I've imported my .mov clips (>200) with the "link" option.

Now I realized that my PC does not work smoothly with .mov files (e.g. for trimming).

As I have already spent many hours in my project (setting "in" and "out" markers, organizing bins, making comments to each clip etc.), I wonder if it is possible to transcode all the clips without loosing all this work that I have spent so far.]]>
Codecs / Importing / Exporting / Transcoding Mon, 17 Nov 2014 18:42:27 +0000
Multi-Frame rate Project: 24p and 60p in the same edit? - by: Dahveed http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83125&Itemid=81#83125 http://www.lwks.com/index.php?option=com_kunena&func=view&catid=23&id=83125&Itemid=81#83125
First post here.. Please forgive me if this is not the right section.....

I have had a question regarding multi-frame rate projects for quite awhile; and after lots of studying here on the LWKS forum and abroad, I finally decided just to ask! So, is it possible in Lightworks to import 24p footage along with 60p? Lets say I shoot some 60p footage and wish to join it with 24p footage in the same edit/project/timeline. The reason I would shoot 60p stuff is so that it could be slowed down in post to create smooth slow-motion. But it seems currently that my project will either have to be ALL slomo or ALL 24p. Am I right?

Any help appreciated,

Dahveed]]>
Codecs / Importing / Exporting / Transcoding Sun, 16 Nov 2014 23:34:46 +0000