[FFmpeg-devel] [PATCHv2] avfilter/af_pan: reject expressions referencing the same channel multiple times

[Nicolas George]

Marton Balint (2018-03-25):
> Fixes parsing of expressions like c0=c0+c0 or c0=c0|c0=c1.  Previously no
> error was thrown and for input channels, only the last gain factor was used,
> for output channels the source channel gains were combined.
> 
> Signed-off-by: Marton Balint <cus at passwd.hu>
> ---
>  libavfilter/af_pan.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)

LGTM, thanks.

Regards,

-- 
  Nicolas George
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