[FFmpeg-user] 1024 character limit for a filterchain

Dave Rice dave at dericed.com
Tue Feb 16 02:44:38 CET 2016

> On Feb 15, 2016, at 6:53 PM, Marton Balint <cus at passwd.hu> wrote:
> On Mon, 15 Feb 2016, Dave Rice wrote:
>>> On Feb 15, 2016, at 5:31 PM, Dave Rice <dave at dericed.com> wrote:
> [..]
>> Through more testing I realize that this is not a filterchain limit but a limit on the input. For instance this 1,026 character filterchain works fine.
> It is probably a limitation of AVFormatContext->filename.
> As changing it to an alloced/freed string would break compatibiliy, I guess you must use the -graph option of lavfi for now which does not have this limitation.

I hadn’t seen the -graph option before, but that solved my issue.

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