Function rsmpeg::ffi::av_get_channel_layout

pub unsafe extern "C" fn av_get_channel_layout(name: *const i8) -> u64

Return a channel layout id that matches name, or 0 if no match is found.

name can be one or several of the following notations, separated by ‘+’ or ‘|’:

• the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0, 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix);
• the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC, SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR);
• a number of channels, in decimal, followed by ‘c’, yielding the default channel layout for that number of channels (@see av_get_default_channel_layout);
• a channel layout mask, in hexadecimal starting with “0x” (see the AV_CH_* macros).

Example: “stereo+FC” = “2c+FC” = “2c+1c” = “0x7”