Function ffav_sys::av_buffersrc_close

pub unsafe extern "C" fn av_buffersrc_close(
    ctx: *mut AVFilterContext, 
    pts: i64, 
    flags: c_uint
) -> c_int

Close the buffer source after EOF.

This is similar to passing NULL to av_buffersrc_add_frame_flags() except it takes the timestamp of the EOF, i.e. the timestamp of the end of the last frame.