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TOPIC: Proxy File Resolution

Proxy File Resolution 1 year, 3 months ago #192818

  • misterangle
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Hi there, I'm using Eyeframe converter to convert 1080 phone footage to MPEG 2 format for proxy editing.My laptop is pretty ancient but I've done a couple of music vids with LWKS in the past and it copes up to a point. The file conversion seems to be working but there are some things I don't understand. Firstly, a short clip of 1080 phone footage is, for example, 28 MB. What is happening in the conversion to make the hi-def file nearly 10x that size? I know it's a different format from the phone's original but how does that work? Is it decompressing the original? I'm intrigued...

Secondly, when I swap the files over for final editing, although I can physically see the higher quality the information in the log file hasn't changed: it says 960 x 540 - the same as the proxy file. I thought that would change.

lastly, are there known issues with Lenovo laptops and their chipsets when using LWKs? There are times when I just have to move a gamma or contrast button 1mm to the right and the whole thing freezes. Imagine starting your day like that...

Re: Proxy File Resolution 1 year, 3 months ago #192825

  • RWAV
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Which version of LW are you using? Perhaps you may be best trying the LW internal proxy workflow - no need for external conversion.
BETA System
Microsoft Windows 7 Professional 64BIT
HP Z800 Workstation

Re: Proxy File Resolution 1 year, 3 months ago #192829

  • misterangle
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I'm using 14.5. Just noticed there's a 'create proxy' facility. Could you explain how that works. I like using LWKs but it's not often the most intuitive thing to wrestle with.

Re: Proxy File Resolution 1 year, 3 months ago #192839

  • schrauber
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From other threads:
schrauber wrote:
First, create the proxies from clips you have already imported by clicking the right mouse button in "Project Contents" (previously select clips if desired):
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...
...
In the project settings (or via keyboard shortcut) select "Playback media quality Lowest available"
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Done



EDIT:
Additional information:

... You have several options for creating proxies:
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With the free license the size and the quality are adjustable.
This has influence on the playback quality, performance and memory usage.

More compressions with the pro license.

Edit:
Lightworks automatically uses the original media for export. So you do not need to switch. Of course, the prerequisite is that Lightworks retain access to the original media.

If you want to temporarily use the original quality for the preview, for example for more precise effect settings, switch "Playback media quality" to "Highest available".
I do not use the "Automatic" setting because the rules used by the automatic system are not documented (the proxy resolution seems to influence the behavior as well?).

With the shortcut "Playback media quality" you can change the preview quality very quickly.

See also "14.5 User Guide" Page 144 ...
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Software: Lightworks 2020.1; || Windows 10, 64 Bit
Hardware: Intel i5-4440 (3,1 GHz); || shared RAM: 8 GB; || Intel HD Graphics 4600 (can use max. 2 GB of shared RAM)
Last Edit: 4 months, 2 weeks ago by schrauber.

Re: Proxy File Resolution 1 year, 3 months ago #192888

  • misterangle
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Thanks for that. I must say it's certainly an improvement in user-friendliness over the last version. Has to be one of the easier tasks to perform with LWKs. The manual is very good too. Slowly working my way through...

As a matter of interest: what would be the minimum spec laptop to cope with all the features of LWKs. I think it's time to upgrade but don't want to overdo it.

Thanks for your input, btw, very helpful.

Re: Proxy File Resolution 1 year, 3 months ago #192891

  • hugly
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Hi,

That's really difficult to say, it's money vs time spent. Editing performance depends on computer, material used, and complexity of edits. Even with given material and complexity of edits, it's still a trade off between spending more money or waiting longer for the procedures to finish.

With a PC compared with a laptop you get more bang for the buck and you might find some powerful used/refurbished machine at low prices.

What's you budget?
It's better to travel well than to arrive...

Re: Proxy File Resolution 4 months, 2 weeks ago #211403

  • Ambientologist
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May I add something to this thread? After having edited the project using proxies, will exporting the project automatically replace the clips with the original footage?

Re: Proxy File Resolution 4 months, 2 weeks ago #211405

  • schrauber
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Yes, correct (if the original footage is available at the time; otherwise the proxies are exported without warning).
Mainly automatically translated
--------------------------------------------
Software: Lightworks 2020.1; || Windows 10, 64 Bit
Hardware: Intel i5-4440 (3,1 GHz); || shared RAM: 8 GB; || Intel HD Graphics 4600 (can use max. 2 GB of shared RAM)
Last Edit: 4 months, 2 weeks ago by schrauber.

Re: Proxy File Resolution 4 months, 2 weeks ago #211406

  • lghtwrks
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reminds me of some feature requests

- find all clips of a timeline where no proxies were generated (manual generation)
- generate poxies just for the clips used on the curent string-out-timeline...
- just generate proxies for selected bind (mulicam bins)
- generate an archive and include only proxies - if the proxies are not available they are generated on creating that archive ("archive to go")

probably some are already in.
s
Last Edit: 4 months, 2 weeks ago by lghtwrks.

Re: Proxy File Resolution 4 months, 2 weeks ago #211410

  • Ambientologist
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schrauber wrote:
Yes, correct (if the original footage is available at the time; otherwise the proxies are exported without warning).


Splendid, thanks!

Re: Proxy File Resolution 4 months, 1 week ago #211673

  • Ambientologist
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A related question: What should I look to export the final videos as? Is there a way I can easily check the resolution/quality specs of the original footage?

I've noticed the original footage are gigabytes in size, whereas my exports are a few hundred megabytes (having only exported at 1080p 'for YouTube'). Feel like I may be losing some quality in this case.


Thanks!

Re: Proxy File Resolution 4 months, 1 week ago #211677

  • RWAV
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Really depends on the purpose of the export. Say the export is for distribution approval of the creative content of the edit, as distinct from the final media quality. then MB where once there were GB would be expected.

Here one would export the final locked-off product from LW in an uncompressed format - which becomes the valued 'final master' for want of a better description.

From that 'master', and not necessarily via LW, purpose specific distribution versions would be generated.
BETA System
Microsoft Windows 7 Professional 64BIT
HP Z800 Workstation

Re: Proxy File Resolution 4 months, 1 week ago #211682

  • Ambientologist
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In this case I want to host it online in the best quality possible, to do justice to the original footage. Does anywhere host anything higher than 1080p? (I realise this is not my original question!)

And what would the uncompressed option be? Exporting as a .mov?

Re: Proxy File Resolution 4 months, 1 week ago #211699

  • hugly
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Could you describe what you mean saying 'hosting it online'. Something like Netflix?
It's better to travel well than to arrive...

Re: Proxy File Resolution 4 months, 1 week ago #211700

  • Ambientologist
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What I mean by that is uploading to YouTube and/or Vimeo.
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