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.
The error you're getting is because of a problem with your filter, not
the switch. The filter is being parsed now but I think you're getting
the "not connected to any destination" because you haven't defined any
outputs for your input filters. The syntax should be:
[in_link_1]...[in_link_N]filter_name=arguments[out_link_1]...[out_link_M]
In your command I see [0] and [1] for in_links but no matching
out_links.
What exactly are you trying to accomplish? I may be able to help you
figure out the filter syntax. Once you get that right it should work,
avconv definitely supports it.
Ruth
--------------------------------------------
On Sun, 9/15/13, Keith Lawson <[email protected]> wrote:
Subject: Re: [libav-tools] AVCONV -filter_complex option unrecognized.
To: [email protected]
Date: Sunday, September 15, 2013, 8:31 AM
On 2013-09-15 05:12, Miscell smith
wrote:
I'm trying to use AVCONV -filter_complex option as
shown below but get an unrecognized option error. Please
would you tell me which versions implement this feature? I
am currently using standard Debian packages (from Jessie).
avconv -i %04d.jpg -i scale%04d.png -filter_complex
[0][1]overlay=791:1050
-vcodec libx264 -profile:v high -r 25 -an test.avi
avconv version 0.8.7-6:0.8.7-1, Copyright (c) 2000-2013
the Libav developers
built on May 20 2013 12:25:19 with gcc 4.7.3
Input #0, image2, from '%04d.jpg':
Duration: 00:00:07.04, start: 0.000000, bitrate: N/A
Stream #0.0: Video: mjpeg, yuvj440p, 1920x1080 [PAR
72:72 DAR 16:9],
25 fps, 25 tbr, 25 tbn, 25 tbc
Input #1, image2, from 'scale%04d.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #1.0: Video: png, bgra, 338x30, 25 tbr, 25 tbn,
25 tbc
Unrecognized option 'filter_complex'
Failed to set value '[0][1]overlay=791:1050' for option
'filter_complex'
I'm not sure about the -filter_complex switch but I'm able
to use complex filters with avconv just using the -vf switch
and passing the appropriate filtergraph parameters. The
filtergraph documentation here really helped me figure it
out:
https://libav.org/libavfilter.html#Filtergraph-description [1]
I'd try passing your filter with just "-vf".
Thanks,
Ruth
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