Function ffmpeg_dev::sys::av_get_alt_sample_fmt

pub unsafe extern "C" fn av_get_alt_sample_fmt(
    sample_fmt: AVSampleFormat, 
    planar: c_int
) -> AVSampleFormat

Return the planar<->packed alternative form of the given sample format, or AV_SAMPLE_FMT_NONE on error. If the passed sample_fmt is already in the requested planar/packed format, the format returned is the same as the input.