<p>When I try to concatenate one video from IOS and Another from Android user, the output video doesn't work. </p>

<p>I am using this command: </p>

<pre><code>ffmpeg -f concat -safe 0 -i mylist.txt -c copy output
</code></pre>

CC BY-SA 4.0
2019-07-12T15:28:29.530Z
Please [use ffprobe](https://www.bugcodemaster.com/article/use-ffprobe-obtain-information-video-files) to include information about the format of each file in your list, if they aren't the same merging won't work (you'll need to reencode, causing loss). To make Android videos ***similar*** (but possibly still not mergable) go to phone's video settings, "Rear Video Size" and turn on "HEVC" (or turn it off on iPhone). That's probably where the problem lies as the default for each OS is opposite.
Rob
CC BY-SA 4.0
2019-07-12T17:14:52.027Z
All inputs must have the same formats and parameters. Show info for each input as Rob mentioned if you need help conforming them.
llogan
<video><ffmpeg>
Uploaded video from IOS and Android devices can't be merged
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# Uploaded video from IOS and Android devices can't be merged

(Asked by: username_0 on 2019-07-12)

When I try to concatenate one video from IOS and Another from Android user, the output video doesn't work. 
I am using this command: 
ffmpeg -f concat -safe 0 -i mylist.txt -c copy output

**Tags:** video, ffmpeg

> **Comments:**
> **username_1**: Please [use ffprobe](https://www.bugcodemaster.com/article/use-ffprobe-obtain-information-video-files) to include information about the format of each file in your list, if they aren't the same merging won't work (you'll need to reencode, causing loss). To make Android videos ***similar*** (but possibly still not mergable) go to phone's video settings, "Rear Video Size" and turn on "HEVC" (or turn it off on iPhone). That's probably where the problem lies as the default for each OS is opposite.  
> **username_2**: All inputs must have the same formats and parameters. Show info for each input as username_1 mentioned if you need help conforming them.  

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## 0 answers

