[FFmpeg-user] amix fills 16Gb memory, ffmpeg killed

Lou Logan lou at lrcd.com
Thu Feb 27 21:53:09 EET 2020

On Thu, Feb 27, 2020, at 7:50 AM, S Andreason wrote:
> Hi,
> I am trying to join 11 video files, each 3 minutes in length. I can get 
> the video rendered correctly, where the audio only lasts 3 minutes from 
> input 0. But when I add the amix filter, it fills 16Gb of memory in 2 
> minutes and gets it's process killed.
> The full command line and output, before and after adding
> ;amix=inputs=11:duration=longest
> are in this 43Kb text file:
> https://www.seahorsecorral.org/videos/tests/ffmpeg-killed-16Gb-memory-full.txt

That's a large command for us to have to parse. I recommend omitting 
anything that isn't required to reproduce the issue and to provide a minimal
command that still shows the problem. It will increase your chances to receive
answers. Provide a link to any files that are needed so we can try it if it can't
be reproduced with synthetic inputs (testsrc2 and sine filters for example).

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