use crate::auto::functions::parse_bin_from_description;
use glib::prelude::*;
use glib::translate::*;
use std::ptr;
use crate::Bin;
use crate::Element;
use crate::Object;
use crate::ParseContext;
use crate::ParseFlags;
#[cfg(any(feature = "v1_18", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
use crate::Tracer;
pub fn parse_bin_from_description_with_name(
bin_description: &str,
ghost_unlinked_pads: bool,
bin_name: &str,
) -> Result<Bin, glib::Error> {
assert_initialized_main_thread!();
let bin = parse_bin_from_description(bin_description, ghost_unlinked_pads)?;
if !bin_name.is_empty() {
let obj = bin.clone().upcast::<Object>();
unsafe {
ffi::gst_object_set_name(obj.to_glib_none().0, bin_name.to_glib_none().0);
}
}
Ok(bin)
}
#[doc(alias = "gst_parse_bin_from_description_full")]
pub fn parse_bin_from_description_full(
bin_description: &str,
ghost_unlinked_pads: bool,
mut context: Option<&mut ParseContext>,
flags: ParseFlags,
) -> Result<Element, glib::Error> {
assert_initialized_main_thread!();
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::gst_parse_bin_from_description_full(
bin_description.to_glib_none().0,
ghost_unlinked_pads.into_glib(),
context.to_glib_none_mut().0,
flags.into_glib(),
&mut error,
);
if error.is_null() {
Ok(from_glib_none(ret))
} else {
Err(from_glib_full(error))
}
}
}
pub fn parse_bin_from_description_with_name_full(
bin_description: &str,
ghost_unlinked_pads: bool,
bin_name: &str,
context: Option<&mut ParseContext>,
flags: ParseFlags,
) -> Result<Element, glib::Error> {
assert_initialized_main_thread!();
let bin =
parse_bin_from_description_full(bin_description, ghost_unlinked_pads, context, flags)?;
if !bin_name.is_empty() {
let obj = bin.clone().upcast::<Object>();
unsafe {
ffi::gst_object_set_name(obj.to_glib_none().0, bin_name.to_glib_none().0);
}
}
Ok(bin)
}
#[doc(alias = "gst_parse_launch_full")]
pub fn parse_launch_full(
pipeline_description: &str,
mut context: Option<&mut ParseContext>,
flags: ParseFlags,
) -> Result<Element, glib::Error> {
assert_initialized_main_thread!();
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::gst_parse_launch_full(
pipeline_description.to_glib_none().0,
context.to_glib_none_mut().0,
flags.into_glib(),
&mut error,
);
if error.is_null() {
Ok(from_glib_none(ret))
} else {
Err(from_glib_full(error))
}
}
}
#[doc(alias = "gst_parse_launchv_full")]
pub fn parse_launchv_full(
argv: &[&str],
mut context: Option<&mut ParseContext>,
flags: ParseFlags,
) -> Result<Element, glib::Error> {
assert_initialized_main_thread!();
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::gst_parse_launchv_full(
argv.to_glib_none().0,
context.to_glib_none_mut().0,
flags.into_glib(),
&mut error,
);
if error.is_null() {
Ok(from_glib_none(ret))
} else {
Err(from_glib_full(error))
}
}
}
#[doc(alias = "gst_calculate_linear_regression")]
pub fn calculate_linear_regression(
xy: &[(u64, u64)],
temp: Option<&mut [(u64, u64)]>,
) -> Option<(u64, u64, u64, u64, f64)> {
skip_assert_initialized!();
use std::mem;
unsafe {
assert_eq!(mem::size_of::<u64>() * 2, mem::size_of::<(u64, u64)>());
assert_eq!(mem::align_of::<u64>(), mem::align_of::<(u64, u64)>());
assert!(
temp.as_ref()
.map(|temp| temp.len())
.unwrap_or_else(|| xy.len())
>= xy.len()
);
let mut m_num = mem::MaybeUninit::uninit();
let mut m_denom = mem::MaybeUninit::uninit();
let mut b = mem::MaybeUninit::uninit();
let mut xbase = mem::MaybeUninit::uninit();
let mut r_squared = mem::MaybeUninit::uninit();
let res = from_glib(ffi::gst_calculate_linear_regression(
xy.as_ptr() as *const u64,
temp.map(|temp| temp.as_mut_ptr() as *mut u64)
.unwrap_or(ptr::null_mut()),
xy.len() as u32,
m_num.as_mut_ptr(),
m_denom.as_mut_ptr(),
b.as_mut_ptr(),
xbase.as_mut_ptr(),
r_squared.as_mut_ptr(),
));
if res {
Some((
m_num.assume_init(),
m_denom.assume_init(),
b.assume_init(),
xbase.assume_init(),
r_squared.assume_init(),
))
} else {
None
}
}
}
#[cfg(any(feature = "v1_18", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
#[doc(alias = "gst_tracing_get_active_tracers")]
pub fn active_tracers() -> glib::List<Tracer> {
assert_initialized_main_thread!();
unsafe { FromGlibPtrContainer::from_glib_full(ffi::gst_tracing_get_active_tracers()) }
}
#[cfg(test)]
mod tests {
use super::*;
use crate::prelude::*;
#[test]
fn test_calculate_linear_regression() {
crate::init().unwrap();
let values = [(0, 0), (1, 1), (2, 2), (3, 3)];
let (m_num, m_denom, b, xbase, _) = calculate_linear_regression(&values, None).unwrap();
assert_eq!((m_num, m_denom, b, xbase), (10, 10, 3, 3));
let mut temp = [(0, 0); 4];
let (m_num, m_denom, b, xbase, _) =
calculate_linear_regression(&values, Some(&mut temp)).unwrap();
assert_eq!((m_num, m_denom, b, xbase), (10, 10, 3, 3));
}
#[test]
fn test_parse_bin_from_description_with_name() {
crate::init().unwrap();
let bin =
parse_bin_from_description_with_name("fakesrc ! fakesink", false, "all_fake").unwrap();
let name = bin.name();
assert_eq!(name, "all_fake");
let bin = parse_bin_from_description_with_name("fakesrc ! fakesink", false, "").unwrap();
let name = bin.name();
assert_ne!(name, "");
}
}