[FFmpeg-user] Need help splitting stereo FLAC into two separate files

[Mark Filipak]

On 04/05/2020 04:04 AM, Ted Park wrote:
> Hi,
> 
>> [AVFilterGraph @ 000001d1ff964340] No such filter:
>> 'channelsplit=channel_layout=2.0[FL][FR]'
>> Error initializing complex filters.
>> Invalid argument
> 
>> [AVFilterGraph @ 000002963fbe4340] No such filter:
>> 'channelsplit=channel_layout=2.[FL][FR]'
>> Error initializing complex filters.
>> Invalid argument
> 
>> [AVFilterGraph @ 000001a429734300] No such filter:
>> 'channelsplit=channel_layout=[FL][FR]'
>> Error initializing complex filters.
>> Invalid argument
> 
> That is weird. Maybe single quotes work differently in your command line, or are those apostrophes or something?? try moving the first quote after the equals sign, e.g. channelsplit=‘channel…..[FL][FR]’
> 
> But even after it gets the channelsplit working the right channel layout name is probably stereo, and then you might have to move the channels from left and right to center (maybe aformat=cl=mono will suffice) take a look at the -map_channel option, it might be simpler for you.
> 
> Regards,
> Ted Park

In my system (Linux Mint), the filter chain parameters for the '-filter_complex' directive *must* be 
double-quoted.

HTH - Mark.