forked from mirrors/gstreamer-rs
860 lines
21 KiB
Rust
860 lines
21 KiB
Rust
// Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use num_rational::Rational32;
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use std::fmt;
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use std::ops;
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use std::borrow::{Borrow, Cow};
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use std::slice;
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use glib;
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use glib::value::{FromValue, FromValueOptional, SetValue, ToValue, Value};
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use glib::translate::{from_glib, from_glib_full, FromGlib, ToGlib, ToGlibPtr, ToGlibPtrMut,
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Uninitialized};
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use ffi;
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use glib_ffi;
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#[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
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pub struct Fraction(pub Rational32);
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impl Fraction {
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pub fn new(num: i32, den: i32) -> Fraction {
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assert_initialized_main_thread!();
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(num, den).into()
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}
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pub fn approximate_f32(x: f32) -> Option<Fraction> {
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assert_initialized_main_thread!();
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Rational32::approximate_float(x).map(|r| r.into())
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}
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pub fn approximate_f64(x: f64) -> Option<Fraction> {
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assert_initialized_main_thread!();
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Rational32::approximate_float(x).map(|r| r.into())
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}
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}
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impl fmt::Display for Fraction {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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self.0.fmt(f)
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}
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}
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impl ops::Deref for Fraction {
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type Target = Rational32;
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fn deref(&self) -> &Rational32 {
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&self.0
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}
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}
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impl ops::DerefMut for Fraction {
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fn deref_mut(&mut self) -> &mut Rational32 {
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&mut self.0
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}
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}
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impl AsRef<Rational32> for Fraction {
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fn as_ref(&self) -> &Rational32 {
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&self.0
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}
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}
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impl ops::Mul<Fraction> for Fraction {
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type Output = Fraction;
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fn mul(self, other: Fraction) -> Fraction {
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Fraction(self.0.mul(other.0))
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}
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}
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impl ops::Mul<i32> for Fraction {
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type Output = Fraction;
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fn mul(self, other: i32) -> Fraction {
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self.mul(Fraction::from(other))
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}
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}
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impl ops::Div<Fraction> for Fraction {
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type Output = Fraction;
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fn div(self, other: Fraction) -> Fraction {
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Fraction(self.0.div(other.0))
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}
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}
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impl ops::Div<i32> for Fraction {
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type Output = Fraction;
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fn div(self, other: i32) -> Fraction {
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self.div(Fraction::from(other))
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}
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}
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impl ops::Add<Fraction> for Fraction {
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type Output = Fraction;
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fn add(self, other: Fraction) -> Fraction {
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Fraction(self.0.add(other.0))
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}
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}
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impl ops::Add<i32> for Fraction {
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type Output = Fraction;
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fn add(self, other: i32) -> Fraction {
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self.add(Fraction::from(other))
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}
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}
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impl ops::Sub<Fraction> for Fraction {
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type Output = Fraction;
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fn sub(self, other: Fraction) -> Fraction {
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Fraction(self.0.sub(other.0))
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}
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}
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impl ops::Sub<i32> for Fraction {
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type Output = Fraction;
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fn sub(self, other: i32) -> Fraction {
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self.sub(Fraction::from(other))
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}
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}
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impl ops::Rem<Fraction> for Fraction {
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type Output = Fraction;
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fn rem(self, other: Fraction) -> Fraction {
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Fraction(self.0.rem(other.0))
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}
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}
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impl ops::Rem<i32> for Fraction {
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type Output = Fraction;
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fn rem(self, other: i32) -> Fraction {
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self.rem(Fraction::from(other))
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}
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}
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impl ops::Neg for Fraction {
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type Output = Fraction;
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fn neg(self) -> Fraction {
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Fraction(self.0.neg())
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}
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}
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impl From<i32> for Fraction {
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fn from(x: i32) -> Fraction {
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assert_initialized_main_thread!();
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Fraction(x.into())
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}
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}
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impl From<(i32, i32)> for Fraction {
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fn from(x: (i32, i32)) -> Fraction {
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assert_initialized_main_thread!();
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Fraction(x.into())
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}
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}
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impl Into<(i32, i32)> for Fraction {
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fn into(self) -> (i32, i32) {
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self.0.into()
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}
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}
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impl From<Rational32> for Fraction {
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fn from(x: Rational32) -> Fraction {
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assert_initialized_main_thread!();
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Fraction(x)
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}
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}
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impl From<Fraction> for Rational32 {
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fn from(x: Fraction) -> Rational32 {
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skip_assert_initialized!();
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x.0
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}
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}
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impl glib::types::StaticType for Fraction {
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fn static_type() -> glib::types::Type {
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unsafe { from_glib(ffi::gst_fraction_get_type()) }
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}
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}
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impl<'a> FromValue<'a> for Fraction {
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unsafe fn from_value(v: &'a Value) -> Fraction {
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let n = ffi::gst_value_get_fraction_numerator(v.to_glib_none().0);
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let d = ffi::gst_value_get_fraction_denominator(v.to_glib_none().0);
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Fraction::new(n, d)
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}
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}
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impl<'a> FromValueOptional<'a> for Fraction {
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unsafe fn from_value_optional(v: &'a Value) -> Option<Fraction> {
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Some(Fraction::from_value(v))
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}
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}
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impl SetValue for Fraction {
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unsafe fn set_value(v: &mut Value, f: &Self) {
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ffi::gst_value_set_fraction(v.to_glib_none_mut().0, *f.numer(), *f.denom());
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}
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}
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#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
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pub struct IntRange<T> {
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min: T,
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max: T,
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step: T,
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}
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impl<T: Copy> IntRange<T> {
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pub fn min(&self) -> T {
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self.min
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}
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pub fn max(&self) -> T {
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self.max
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}
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pub fn step(&self) -> T {
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self.step
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}
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}
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impl IntRange<i32> {
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pub fn new(min: i32, max: i32) -> Self {
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skip_assert_initialized!();
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Self::new_with_step(min, max, 1)
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}
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pub fn new_with_step(min: i32, max: i32, step: i32) -> Self {
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assert_initialized_main_thread!();
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assert!(min <= max);
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assert!(step > 0);
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Self {
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min: min,
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max: max,
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step: step,
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}
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}
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}
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impl IntRange<i64> {
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pub fn new(min: i64, max: i64) -> Self {
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skip_assert_initialized!();
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Self::new_with_step(min, max, 1)
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}
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pub fn new_with_step(min: i64, max: i64, step: i64) -> Self {
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assert_initialized_main_thread!();
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assert!(min <= max);
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assert!(step > 0);
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Self {
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min: min,
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max: max,
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step: step,
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}
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}
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}
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impl From<(i32, i32)> for IntRange<i32> {
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fn from((min, max): (i32, i32)) -> Self {
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skip_assert_initialized!();
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Self::new(min, max)
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}
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}
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impl From<(i32, i32, i32)> for IntRange<i32> {
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fn from((min, max, step): (i32, i32, i32)) -> Self {
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skip_assert_initialized!();
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Self::new_with_step(min, max, step)
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}
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}
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impl From<(i64, i64)> for IntRange<i64> {
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fn from((min, max): (i64, i64)) -> Self {
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skip_assert_initialized!();
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Self::new(min, max)
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}
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}
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impl From<(i64, i64, i64)> for IntRange<i64> {
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fn from((min, max, step): (i64, i64, i64)) -> Self {
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skip_assert_initialized!();
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Self::new_with_step(min, max, step)
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}
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}
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impl glib::types::StaticType for IntRange<i32> {
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fn static_type() -> glib::types::Type {
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unsafe { from_glib(ffi::gst_int_range_get_type()) }
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}
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}
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impl<'a> FromValue<'a> for IntRange<i32> {
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unsafe fn from_value(v: &'a Value) -> Self {
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let min = ffi::gst_value_get_int_range_min(v.to_glib_none().0);
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let max = ffi::gst_value_get_int_range_max(v.to_glib_none().0);
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let step = ffi::gst_value_get_int_range_step(v.to_glib_none().0);
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Self::new_with_step(min, max, step)
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}
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}
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impl<'a> FromValueOptional<'a> for IntRange<i32> {
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unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
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Some(Self::from_value(v))
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}
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}
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impl SetValue for IntRange<i32> {
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unsafe fn set_value(v: &mut Value, r: &Self) {
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ffi::gst_value_set_int_range_step(v.to_glib_none_mut().0, r.min(), r.max(), r.step());
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}
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}
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impl glib::types::StaticType for IntRange<i64> {
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fn static_type() -> glib::types::Type {
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unsafe { from_glib(ffi::gst_int64_range_get_type()) }
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}
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}
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impl<'a> FromValue<'a> for IntRange<i64> {
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unsafe fn from_value(v: &'a Value) -> Self {
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let min = ffi::gst_value_get_int64_range_min(v.to_glib_none().0);
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let max = ffi::gst_value_get_int64_range_max(v.to_glib_none().0);
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let step = ffi::gst_value_get_int64_range_step(v.to_glib_none().0);
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Self::new_with_step(min, max, step)
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}
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}
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impl<'a> FromValueOptional<'a> for IntRange<i64> {
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unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
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Some(Self::from_value(v))
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}
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}
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impl SetValue for IntRange<i64> {
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unsafe fn set_value(v: &mut Value, r: &Self) {
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ffi::gst_value_set_int64_range_step(v.to_glib_none_mut().0, r.min(), r.max(), r.step());
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}
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}
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#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
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pub struct FractionRange {
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min: Fraction,
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max: Fraction,
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}
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impl FractionRange {
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pub fn new<T: Into<Fraction>, U: Into<Fraction>>(min: T, max: U) -> Self {
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assert_initialized_main_thread!();
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let min = min.into();
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let max = max.into();
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assert!(min <= max);
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FractionRange { min: min, max: max }
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}
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pub fn min(&self) -> Fraction {
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self.min
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}
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pub fn max(&self) -> Fraction {
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self.max
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}
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}
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impl From<(Fraction, Fraction)> for FractionRange {
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fn from((min, max): (Fraction, Fraction)) -> Self {
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skip_assert_initialized!();
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Self::new(min, max)
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}
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}
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impl glib::types::StaticType for FractionRange {
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fn static_type() -> glib::types::Type {
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unsafe { from_glib(ffi::gst_fraction_range_get_type()) }
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}
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}
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impl<'a> FromValue<'a> for FractionRange {
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unsafe fn from_value(v: &'a Value) -> Self {
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let min = ffi::gst_value_get_fraction_range_min(v.to_glib_none().0);
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let max = ffi::gst_value_get_fraction_range_max(v.to_glib_none().0);
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let min_n = ffi::gst_value_get_fraction_numerator(min);
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let min_d = ffi::gst_value_get_fraction_denominator(min);
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let max_n = ffi::gst_value_get_fraction_numerator(max);
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let max_d = ffi::gst_value_get_fraction_denominator(max);
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Self::new((min_n, min_d), (max_n, max_d))
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}
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}
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impl<'a> FromValueOptional<'a> for FractionRange {
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unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
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Some(Self::from_value(v))
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}
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}
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impl SetValue for FractionRange {
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unsafe fn set_value(v: &mut Value, r: &Self) {
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ffi::gst_value_set_fraction_range_full(
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v.to_glib_none_mut().0,
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*r.min().numer(),
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*r.min().denom(),
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*r.max().numer(),
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*r.max().denom(),
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);
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}
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}
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#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
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pub struct Bitmask(u64);
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impl Bitmask {
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pub fn new(v: u64) -> Self {
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assert_initialized_main_thread!();
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Bitmask(v)
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}
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}
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impl ops::Deref for Bitmask {
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type Target = u64;
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fn deref(&self) -> &u64 {
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&self.0
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}
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}
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impl ops::DerefMut for Bitmask {
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fn deref_mut(&mut self) -> &mut u64 {
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&mut self.0
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}
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}
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impl ops::BitAnd for Bitmask {
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type Output = Self;
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fn bitand(self, rhs: Self) -> Self {
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Bitmask(self.0.bitand(rhs.0))
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}
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}
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impl ops::BitOr for Bitmask {
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type Output = Self;
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fn bitor(self, rhs: Self) -> Self {
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Bitmask(self.0.bitor(rhs.0))
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}
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}
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impl ops::BitXor for Bitmask {
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type Output = Self;
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fn bitxor(self, rhs: Self) -> Self {
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Bitmask(self.0.bitxor(rhs.0))
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}
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}
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impl ops::Not for Bitmask {
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type Output = Self;
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fn not(self) -> Self {
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Bitmask(self.0.not())
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}
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}
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impl From<u64> for Bitmask {
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fn from(v: u64) -> Self {
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skip_assert_initialized!();
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Self::new(v)
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}
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}
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impl glib::types::StaticType for Bitmask {
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fn static_type() -> glib::types::Type {
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unsafe { from_glib(ffi::gst_bitmask_get_type()) }
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}
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}
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impl<'a> FromValue<'a> for Bitmask {
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unsafe fn from_value(v: &'a Value) -> Self {
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let v = ffi::gst_value_get_bitmask(v.to_glib_none().0);
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Self::new(v)
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}
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}
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impl<'a> FromValueOptional<'a> for Bitmask {
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unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
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Some(Self::from_value(v))
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}
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}
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impl SetValue for Bitmask {
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unsafe fn set_value(v: &mut Value, r: &Self) {
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ffi::gst_value_set_bitmask(v.to_glib_none_mut().0, r.0);
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}
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}
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#[derive(Clone, Debug)]
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pub struct Array<'a>(Cow<'a, [glib::Value]>);
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unsafe impl<'a> Send for Array<'a> {}
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impl<'a> Array<'a> {
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pub fn new(values: &[&ToValue]) -> Self {
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assert_initialized_main_thread!();
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Array(values.iter().map(|v| v.to_value()).collect())
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}
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pub fn into_owned(self) -> Array<'static> {
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Array(self.0.into_owned().into())
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}
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pub fn as_slice(&self) -> &[glib::Value] {
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self.0.borrow()
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}
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}
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impl<'a> From<&'a [&'a ToValue]> for Array<'a> {
|
|
fn from(values: &'a [&'a ToValue]) -> Self {
|
|
skip_assert_initialized!();
|
|
|
|
Self::new(values)
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a [glib::Value]> for Array<'a> {
|
|
fn from(values: &'a [glib::Value]) -> Self {
|
|
assert_initialized_main_thread!();
|
|
|
|
Array(Cow::Borrowed(values))
|
|
}
|
|
}
|
|
|
|
impl<'a> FromValue<'a> for Array<'a> {
|
|
unsafe fn from_value(v: &'a Value) -> Self {
|
|
let arr = (*v.to_glib_none().0).data[0] as *const glib_ffi::GArray;
|
|
if arr.is_null() {
|
|
Array(Cow::Borrowed(&[]))
|
|
} else {
|
|
Array(Cow::Borrowed(slice::from_raw_parts(
|
|
(*arr).data as *const glib::Value,
|
|
(*arr).len as usize,
|
|
)))
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> FromValueOptional<'a> for Array<'a> {
|
|
unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
|
|
Some(Array::from_value(v))
|
|
}
|
|
}
|
|
|
|
impl<'a> SetValue for Array<'a> {
|
|
unsafe fn set_value(v: &mut Value, a: &Self) {
|
|
for value in a.as_slice() {
|
|
ffi::gst_value_array_append_value(v.to_glib_none_mut().0, value.to_glib_none().0);
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> glib::types::StaticType for Array<'a> {
|
|
fn static_type() -> glib::types::Type {
|
|
unsafe { from_glib(ffi::gst_value_array_get_type()) }
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct List<'a>(Cow<'a, [glib::Value]>);
|
|
|
|
unsafe impl<'a> Send for List<'a> {}
|
|
|
|
impl<'a> List<'a> {
|
|
pub fn new(values: &[&ToValue]) -> Self {
|
|
assert_initialized_main_thread!();
|
|
|
|
List(values.iter().map(|v| v.to_value()).collect())
|
|
}
|
|
|
|
pub fn into_owned(self) -> List<'static> {
|
|
List(self.0.into_owned().into())
|
|
}
|
|
|
|
pub fn as_slice(&self) -> &[glib::Value] {
|
|
self.0.borrow()
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a [&'a ToValue]> for List<'a> {
|
|
fn from(values: &'a [&'a ToValue]) -> Self {
|
|
skip_assert_initialized!();
|
|
|
|
Self::new(values)
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a [glib::Value]> for List<'a> {
|
|
fn from(values: &'a [glib::Value]) -> Self {
|
|
assert_initialized_main_thread!();
|
|
|
|
List(Cow::Borrowed(values))
|
|
}
|
|
}
|
|
|
|
impl<'a> FromValue<'a> for List<'a> {
|
|
unsafe fn from_value(v: &'a Value) -> Self {
|
|
let arr = (*v.to_glib_none().0).data[0] as *const glib_ffi::GArray;
|
|
if arr.is_null() {
|
|
List(Cow::Borrowed(&[]))
|
|
} else {
|
|
List(Cow::Borrowed(slice::from_raw_parts(
|
|
(*arr).data as *const glib::Value,
|
|
(*arr).len as usize,
|
|
)))
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> FromValueOptional<'a> for List<'a> {
|
|
unsafe fn from_value_optional(v: &'a Value) -> Option<Self> {
|
|
Some(List::from_value(v))
|
|
}
|
|
}
|
|
|
|
impl<'a> SetValue for List<'a> {
|
|
unsafe fn set_value(v: &mut Value, a: &Self) {
|
|
for value in a.as_slice() {
|
|
ffi::gst_value_list_append_value(v.to_glib_none_mut().0, value.to_glib_none().0);
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> glib::types::StaticType for List<'a> {
|
|
fn static_type() -> glib::types::Type {
|
|
unsafe { from_glib(ffi::gst_value_list_get_type()) }
|
|
}
|
|
}
|
|
|
|
pub enum ValueOrder {
|
|
LessThan,
|
|
Equal,
|
|
GreaterThan,
|
|
Unordered,
|
|
}
|
|
|
|
impl ToGlib for ValueOrder {
|
|
type GlibType = i32;
|
|
|
|
fn to_glib(&self) -> Self::GlibType {
|
|
match *self {
|
|
ValueOrder::LessThan => ffi::GST_VALUE_LESS_THAN,
|
|
ValueOrder::Equal => ffi::GST_VALUE_EQUAL,
|
|
ValueOrder::GreaterThan => ffi::GST_VALUE_GREATER_THAN,
|
|
ValueOrder::Unordered => ffi::GST_VALUE_UNORDERED,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl FromGlib<i32> for ValueOrder {
|
|
fn from_glib(v: i32) -> Self {
|
|
skip_assert_initialized!();
|
|
|
|
match v {
|
|
ffi::GST_VALUE_LESS_THAN => ValueOrder::LessThan,
|
|
ffi::GST_VALUE_EQUAL => ValueOrder::Equal,
|
|
ffi::GST_VALUE_GREATER_THAN => ValueOrder::GreaterThan,
|
|
ffi::GST_VALUE_UNORDERED => ValueOrder::Unordered,
|
|
_ => unreachable!(),
|
|
}
|
|
}
|
|
}
|
|
|
|
pub trait GstValueExt: Sized {
|
|
fn can_compare(&self, other: &Self) -> bool;
|
|
fn compare(&self, other: &Self) -> ValueOrder;
|
|
fn can_intersect(&self, other: &Self) -> bool;
|
|
fn intersect(&self, other: &Self) -> Option<Self>;
|
|
fn can_subtract(&self, other: &Self) -> bool;
|
|
fn subtract(&self, other: &Self) -> Option<Self>;
|
|
fn can_union(&self, other: &Self) -> bool;
|
|
fn union(&self, other: &Self) -> Option<Self>;
|
|
fn fixate(&self) -> Option<Self>;
|
|
fn is_fixed(&self) -> bool;
|
|
fn is_subset(&self, superset: &Self) -> bool;
|
|
fn serialize(&self) -> Option<String>;
|
|
fn deserialize<'a, T: Into<&'a str>>(s: T) -> Option<glib::Value>;
|
|
}
|
|
|
|
impl GstValueExt for glib::Value {
|
|
fn can_compare(&self, other: &Self) -> bool {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_can_compare(
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn compare(&self, other: &Self) -> ValueOrder {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_compare(
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn can_intersect(&self, other: &Self) -> bool {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_can_intersect(
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn intersect(&self, other: &Self) -> Option<Self> {
|
|
unsafe {
|
|
let mut value = glib::Value::uninitialized();
|
|
let ret: bool = from_glib(ffi::gst_value_intersect(
|
|
value.to_glib_none_mut().0,
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
));
|
|
if ret {
|
|
Some(value)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn can_subtract(&self, other: &Self) -> bool {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_can_subtract(
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn subtract(&self, other: &Self) -> Option<Self> {
|
|
unsafe {
|
|
let mut value = glib::Value::uninitialized();
|
|
let ret: bool = from_glib(ffi::gst_value_subtract(
|
|
value.to_glib_none_mut().0,
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
));
|
|
if ret {
|
|
Some(value)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn can_union(&self, other: &Self) -> bool {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_can_union(
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn union(&self, other: &Self) -> Option<Self> {
|
|
unsafe {
|
|
let mut value = glib::Value::uninitialized();
|
|
let ret: bool = from_glib(ffi::gst_value_union(
|
|
value.to_glib_none_mut().0,
|
|
self.to_glib_none().0,
|
|
other.to_glib_none().0,
|
|
));
|
|
if ret {
|
|
Some(value)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn fixate(&self) -> Option<Self> {
|
|
unsafe {
|
|
let mut value = glib::Value::uninitialized();
|
|
let ret: bool = from_glib(ffi::gst_value_fixate(
|
|
value.to_glib_none_mut().0,
|
|
self.to_glib_none().0,
|
|
));
|
|
if ret {
|
|
Some(value)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn is_fixed(&self) -> bool {
|
|
unsafe { from_glib(ffi::gst_value_is_fixed(self.to_glib_none().0)) }
|
|
}
|
|
|
|
fn is_subset(&self, superset: &Self) -> bool {
|
|
unsafe {
|
|
from_glib(ffi::gst_value_is_subset(
|
|
self.to_glib_none().0,
|
|
superset.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
fn serialize(&self) -> Option<String> {
|
|
unsafe { from_glib_full(ffi::gst_value_serialize(self.to_glib_none().0)) }
|
|
}
|
|
|
|
fn deserialize<'a, T: Into<&'a str>>(s: T) -> Option<glib::Value> {
|
|
assert_initialized_main_thread!();
|
|
|
|
let s = s.into();
|
|
|
|
unsafe {
|
|
let mut value = glib::Value::uninitialized();
|
|
let ret: bool = from_glib(ffi::gst_value_deserialize(
|
|
value.to_glib_none_mut().0,
|
|
s.to_glib_none().0,
|
|
));
|
|
if ret {
|
|
Some(value)
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
}
|