[libav-tools] AVCONV -filter_complex option unrecognized.

Luca Barbato lu_zero at gentoo.org
Wed Sep 18 15:44:35 CEST 2013

On 18/09/13 00:54, Keith Lawson wrote:
> On 2013-09-17 14:25, Miscell smith wrote:
>> Keith,
>> I'm afraid that -vf instead of -filter_complex did not work. I think
>> the -vf option works only with a simple chain of filters, not a full
>> filtergraph with multiple inputs and outputs. The error message I got was
>> Output pad "default" for the filter "src" of type "buffer" not
>> connected to any destination.
>> Error opening filters!
>> The -filter_complex command I have been using with avconv would work
>> with ffmpeg, so I suspect it is simply that this option is not
>> implemented in the version I am using (but which version would?).
> I'm not a libav developer so I can't speak about -filter_complex and
> when it was removed from avconv but it certainly doesn't appear to be
> there any more. I can confirm that -vf works for complex filters with
> avconv though as I use them to split video streams and combine them again.

Which version of libav are you using?

Libav 9 Implements filter complex, Libav 0.8 does not.


More information about the libav-tools mailing list