'mix=nb_inputs=2' provokes error...

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'mix=nb_inputs=2' provokes error...

Mark Filipak (ffmpeg)
...contrary to https://ffmpeg.org/ffmpeg-filters.html#mix

[Parsed_mix_29 @ 0000025771c709c0] Option 'nb_inputs' *not found*
[AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args 'nb_inputs=2:weights=3 2'
Error initializing complex filters.
Option not found
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Re: 'mix=nb_inputs=2' provokes error...

Peter White
On Wed, Mar 24, 2021 at 05:00:09AM -0400, Mark Filipak (ffmpeg) wrote:
> ...contrary to https://ffmpeg.org/ffmpeg-filters.html#mix
>
> [Parsed_mix_29 @ 0000025771c709c0] Option 'nb_inputs' *not found*
> [AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args 'nb_inputs=2:weights=3 2'
> Error initializing complex filters.
> Option not found

There seems to be an error in the documentation. The option is called
"inputs".
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Re: 'mix=nb_inputs=2' provokes error...

Mark Filipak (ffmpeg)
On 2021-03-24 05:18, Peter White wrote:

> On Wed, Mar 24, 2021 at 05:00:09AM -0400, Mark Filipak (ffmpeg) wrote:
>> ...contrary to https://ffmpeg.org/ffmpeg-filters.html#mix
>>
>> [Parsed_mix_29 @ 0000025771c709c0] Option 'nb_inputs' *not found*
>> [AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args 'nb_inputs=2:weights=3 2'
>> Error initializing complex filters.
>> Option not found
>
> There seems to be an error in the documentation. The option is called
> "inputs".

Yup, you're right. I just tested it.

Thanks!
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Re: 'mix=nb_inputs=2' provokes error...

Moritz Barsnick
In reply to this post by Peter White
On Wed, Mar 24, 2021 at 10:18:55 +0100, Peter White wrote:
> > [AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args 'nb_inputs=2:weights=3 2'
> > Error initializing complex filters.
> > Option not found
>
> There seems to be an error in the documentation. The option is called
> "inputs".

Indeed.

BTW, to check options, you can view the auto-generated documentation:

$ ffmpeg -h filter=mix

Cheers,
Moritz
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Re: 'mix=nb_inputs=2' provokes error...

Gyan Doshi-2


On 2021-03-24 16:29, Moritz Barsnick wrote:
> On Wed, Mar 24, 2021 at 10:18:55 +0100, Peter White wrote:
>>> [AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args 'nb_inputs=2:weights=3 2'
>>> Error initializing complex filters.
>>> Option not found
>> There seems to be an error in the documentation. The option is called
>> "inputs".
> Indeed.

Fixed.

Gyan
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Re: 'mix=nb_inputs=2' provokes error...

Mark Filipak (ffmpeg)
On 2021-03-24 07:23, Gyan Doshi wrote:

> On 2021-03-24 16:29, Moritz Barsnick wrote:
>> On Wed, Mar 24, 2021 at 10:18:55 +0100, Peter White wrote:
>>>> [AVFilterGraph @ 0000025772b53dc0] Error initializing filter 'mix' with args
>>>> 'nb_inputs=2:weights=3 2'
>>>> Error initializing complex filters.
>>>> Option not found
>>> There seems to be an error in the documentation. The option is called
>>> "inputs".
>> Indeed.
>
> Fixed.
>
> Gyan

Thank you, Gyan.

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