[FFmpeg-user] 1024 character limit for a filterchain

Marton Balint cus at passwd.hu
Tue Feb 16 00:53:09 CET 2016

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.


More information about the ffmpeg-user mailing list