<p>For tasks like this I like the TMPGEnc tools, try Smart Renderer <a href="https://tmpgenc.pegasys-inc.com/en/product/tmsr5.html" rel="nofollow noreferrer">https://tmpgenc.pegasys-inc.com/en/product/tmsr5.html</a>.</p>
<p>With these tools you can cut &amp; join files, only re-encoding where the cuts / joins are. I would split the file in 3, preferably on key frames, re-render the edited section as needed, then re-join the files. There are trial versions of the products, just download it and see if it does what you need.</p>
<p>I don't know of a way to do this in the Adobe products - if anyone else does, let us know! Or possibly there are other free tools to perform this task, I've just always used the TMPGEnc tools for this type of work.</p>
<p>EDIT: I've also recently become aware of losslesscut, <a href="https://mifi.no/losslesscut/" rel="nofollow noreferrer">https://mifi.no/losslesscut/</a> - sounds like this should also achieve this kind of edit, and is free.</p>

CC BY-SA 4.0
2020-05-13T04:22:49.210Z
2023-05-29T07:42:12.507Z
2023-05-29T07:42:12.507Z
Peter Barton
<p>I have a one hour h264-encoded video. The unedited footage can't be found.
My goal is to edit a small portion of it.</p>

<p>The scenario looks like this. I have to blur out some persons appearing let's say:  <code>00:20:00 - 00:22:00</code>.
The Video's between <code>00:00:00 - 00:20:00</code> and <code>00:22:01 - 01:00:00</code> are untouched.</p>

<p>Is there a method achieving this without losing quality on unedited footage?</p>

<p>I'm using Adobe Products.</p>

CC BY-SA 4.0
2020-05-13T02:06:17.810Z
You're going to lose quality when you re-encode, unless you encode to a lossless format, which will make the file an order of magnitude larger.
stib
<adobe><h.264><export>
Edit small portion of a compressed video without losing quality
StackUnderflow
# Edit small portion of a compressed video without losing quality

(Asked by: username_0 on 2020-05-12)

I have a one hour h264-encoded video. The unedited footage can't be found.
My goal is to edit a small portion of it.

The scenario looks like this. I have to blur out some persons appearing let's say: `00:20:00 - 00:22:00`.
The Video's between `00:00:00 - 00:20:00` and `00:22:01 - 01:00:00` are untouched.

Is there a method achieving this without losing quality on unedited footage?

I'm using Adobe Products.

**Tags:** adobe, h.264, export

> **Comments:**
> **username_1**: You're going to lose quality when you re-encode, unless you encode to a lossless format, which will make the file an order of magnitude larger.  

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## 1 answers

### Answer by username_2 on 2020-05-13. Score: 1

For tasks like this I like the TMPGEnc tools, try Smart Renderer <https://tmpgenc.pegasys-inc.com/en/product/tmsr5.html>.

With these tools you can cut & join files, only re-encoding where the cuts / joins are. I would split the file in 3, preferably on key frames, re-render the edited section as needed, then re-join the files. There are trial versions of the products, just download it and see if it does what you need.

I don't know of a way to do this in the Adobe products - if anyone else does, let us know! Or possibly there are other free tools to perform this task, I've just always used the TMPGEnc tools for this type of work.

EDIT: I've also recently become aware of losslesscut, <https://mifi.no/losslesscut/> - sounds like this should also achieve this kind of edit, and is free.


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