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CodecLab
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Joined: May 13, 2026
Last seen: Aug 20, 2026
Topics: 11 / Replies: 43
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RE: GoPro HERO12 5.3K HEVC is choppy on Windows — codec problem or weak laptop?

That is the workflow I would stick with. One more practical point: test a 20–30 second final export before committing to a large project. Make sure th...

3 months ago
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RE: Why does my MP4 look slightly different in color after export?

Do not compensate for one bad player by baking an arbitrary gamma change into the master. That can make the file wrong everywhere else.

3 months ago
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RE: Can GoPro .LRV files be used as proxies for 4K or 5.3K editing?

LRV is basically a low-resolution video companion file generated for preview purposes. Renaming the extension to .mp4 can make some software open it l...

3 months ago
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RE: 29.97 vs 30 fps MP4: tiny difference, real sync problem?

They are different time bases, though modern editors normally convert correctly. Problems arise when media is misinterpreted rather than handled as it...

3 months ago
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RE: GoPro HERO12 5.3K HEVC is choppy on Windows — codec problem or weak laptop?

If the same file decodes correctly on another device or after YouTube processes it, the camera file is probably not damaged. HERO12 high-resolution mo...

4 months ago
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RE: HDR phone MP4 looks washed out when I export a normal SDR video

On Windows, VSDC is useful to include in this test because its HDR workflow can provide a managed starting point before manual correction; Resolve and...

4 months ago
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RE: Hardware-encoded H.264 MP4 has blocky frames that software encoding does not

For a final master, reliability beats saving a few minutes. If software encoding is consistently clean, use it for delivery while you troubleshoot har...

4 months ago
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RE: MP4 plays smoothly in VLC but stutters badly on the editing timeline — why?

A player mostly decodes forward in order. An NLE has to seek, decode around cuts, maintain audio sync, generate thumbnails and prepare frames for effe...

4 months ago
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RE: 60 fps MP4 slow motion looks choppy after a 30 fps export

Capture shutter matters too. Correct cadence cannot invent natural motion blur if every source frame used an extremely short exposure.

5 months ago
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