<p>As long as the streams have the same properties - resolution, pixel format, timebase, reference frame count, then they can be concatenated by ffmpeg. Strictly speaking, FFmpeg will concat non-matching streams, only throwing warnings for discontinuous timestamps in the input streams, but that output will not be accepted by most (or any) players.</p>

CC BY-SA 3.0
2016-12-05T11:11:37.910Z
Indeed, it worked flawlessly with this command: `ffmpeg -f concat -i mydnxhrfiles.txt -c copy result.mov`
dforce
CC BY-SA 4.0
2016-11-22T09:51:11.390Z
2020-11-06T12:49:31.923Z
2020-11-06T12:49:31.923Z
Gyan
<p>is it possible to precisely concatenate multiple DNxHR (HQ) videos into one without re-encoding?</p>

<p>It seems that <a href="https://trac.ffmpeg.org/wiki/Concatenate" rel="nofollow noreferrer">ffmpeg can only handle MPEG streams</a>.</p>

<ffmpeg>
Joining / Concat DNxHR HQ *without* re-encoding
dforce
# Joining / Concat DNxHR HQ *without* re-encoding

(Asked by: username_0 on 2016-11-22)

is it possible to precisely concatenate multiple DNxHR (HQ) videos into one without re-encoding?

It seems that [ffmpeg can only handle MPEG streams](https://trac.ffmpeg.org/wiki/Concatenate).

**Tags:** ffmpeg


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## 1 answers

### Answer by username_1 on 2016-11-22. Score: 3 | Accepted answer

As long as the streams have the same properties - resolution, pixel format, timebase, reference frame count, then they can be concatenated by ffmpeg. Strictly speaking, FFmpeg will concat non-matching streams, only throwing warnings for discontinuous timestamps in the input streams, but that output will not be accepted by most (or any) players.

> **Comments:**
> **username_0**: Indeed, it worked flawlessly with this command: `ffmpeg -f concat -i mydnxhrfiles.txt -c copy result.mov`  

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