[FFmpeg-user] Fwd: Command line to show channel label/position

[MrNice]

On 28/01/2025 18:26, Carl Zwanzig wrote:
> On 1/28/2025 8:18 AM, MrNice wrote:
>> have an audio file, with MediaInfo I get
>> Audio
>> Channel layout                           : L R Ls Rs
>
>>  > ffmpeg -v error -layouts | awk '/quad /{print $2}'
>> FL+FR+BL+BR
>
>> What is the correct answer?
>
> Both.
> Left, assumed to be front (L) = Front Left (FL)
> Left surround/side (Ls) = Back Left (BL)
> etc
>
> (that's part way down the AudioChannelManipulation page, even farther 
> down is a list of the channel names and standard layouts, also in the 
> -layouts output)
>
> z!
>
> _______________________________________________

Are you sure for good Carl?

AFAIK, LS is surround and BL is back/Rear

Please look here

https://mediaarea.net/AudioChannelLayout

They say, depending of standardization;
Left Surround = Ls = CL = SL = Ls (MediaInfo name)
Right Surround = Rs = CR = SR = Rs (MediaInfo name)
Left Rear Surround = Lrs = BL = Lsr = SL = Lb (MediaInfo name)
Right Rear Surround = Rrs = BR = Rsr = Rb (MediaInfo name)