1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143

// Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use Caps;

use glib_sys;
use gobject_sys;
use gst_sys;

use glib;
use glib::translate::{from_glib_full, FromGlibPtrNone, ToGlibPtr, ToGlibPtrMut};

use std::ffi::CStr;
use std::fmt;
use std::ptr;

/// Datastructure to initialize `Caps` from a string description usually
/// used in conjunction with GST_STATIC_CAPS() and `StaticCaps::get` to
/// instantiate a `Caps`.
#[repr(C)]
pub struct StaticCaps(ptr::NonNull<gst_sys::GstStaticCaps>);

impl StaticCaps {
    /// Converts a `StaticCaps` to a `Caps`.
    ///
    /// # Returns
    ///
    /// a pointer to the `Caps`. Unref
    ///  after usage. Since the core holds an additional ref to the
    ///  returned caps, use `gst_caps_make_writable` on the returned caps
    ///  to modify it.
    pub fn get(&self) -> Caps {
        unsafe { from_glib_full(gst_sys::gst_static_caps_get(self.0.as_ptr())) }
    }
}

unsafe impl Send for StaticCaps {}
unsafe impl Sync for StaticCaps {}

impl fmt::Debug for StaticCaps {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.debug_struct("StaticCaps")
            .field("str", &unsafe {
                CStr::from_ptr(self.0.as_ref().string).to_str()
            })
            .finish()
    }
}

impl glib::types::StaticType for StaticCaps {
    fn static_type() -> glib::types::Type {
        unsafe { glib::translate::from_glib(gst_sys::gst_static_caps_get_type()) }
    }
}

#[doc(hidden)]
impl<'a> glib::value::FromValueOptional<'a> for StaticCaps {
    unsafe fn from_value_optional(value: &glib::Value) -> Option<Self> {
        Option::<StaticCaps>::from_glib_none(
            gobject_sys::g_value_get_boxed(value.to_glib_none().0) as *mut gst_sys::GstStaticCaps
        )
    }
}

#[doc(hidden)]
impl glib::value::SetValue for StaticCaps {
    unsafe fn set_value(value: &mut glib::Value, this: &Self) {
        gobject_sys::g_value_set_boxed(
            value.to_glib_none_mut().0,
            glib::translate::ToGlibPtr::<*const gst_sys::GstStaticCaps>::to_glib_none(this).0
                as glib_sys::gpointer,
        )
    }
}

#[doc(hidden)]
impl glib::value::SetValueOptional for StaticCaps {
    unsafe fn set_value_optional(value: &mut glib::Value, this: Option<&Self>) {
        gobject_sys::g_value_set_boxed(
            value.to_glib_none_mut().0,
            glib::translate::ToGlibPtr::<*const gst_sys::GstStaticCaps>::to_glib_none(&this).0
                as glib_sys::gpointer,
        )
    }
}

#[doc(hidden)]
impl glib::translate::GlibPtrDefault for StaticCaps {
    type GlibType = *mut gst_sys::GstStaticCaps;
}

#[doc(hidden)]
impl<'a> glib::translate::ToGlibPtr<'a, *const gst_sys::GstStaticCaps> for StaticCaps {
    type Storage = &'a StaticCaps;

    fn to_glib_none(&'a self) -> glib::translate::Stash<'a, *const gst_sys::GstStaticCaps, Self> {
        glib::translate::Stash(self.0.as_ptr(), self)
    }

    fn to_glib_full(&self) -> *const gst_sys::GstStaticCaps {
        unimplemented!()
    }
}

#[doc(hidden)]
impl glib::translate::FromGlibPtrNone<*const gst_sys::GstStaticCaps> for StaticCaps {
    #[inline]
    unsafe fn from_glib_none(ptr: *const gst_sys::GstStaticCaps) -> Self {
        assert!(!ptr.is_null());
        StaticCaps(ptr::NonNull::new_unchecked(ptr as *mut _))
    }
}

#[doc(hidden)]
impl glib::translate::FromGlibPtrNone<*mut gst_sys::GstStaticCaps> for StaticCaps {
    #[inline]
    unsafe fn from_glib_none(ptr: *mut gst_sys::GstStaticCaps) -> Self {
        assert!(!ptr.is_null());
        StaticCaps(ptr::NonNull::new_unchecked(ptr))
    }
}

#[doc(hidden)]
impl glib::translate::FromGlibPtrBorrow<*mut gst_sys::GstStaticCaps> for StaticCaps {
    #[inline]
    unsafe fn from_glib_borrow(ptr: *mut gst_sys::GstStaticCaps) -> Self {
        assert!(!ptr.is_null());
        StaticCaps(ptr::NonNull::new_unchecked(ptr))
    }
}

#[doc(hidden)]
impl glib::translate::FromGlibPtrFull<*mut gst_sys::GstStaticCaps> for StaticCaps {
    #[inline]
    unsafe fn from_glib_full(_ptr: *mut gst_sys::GstStaticCaps) -> Self {
        unimplemented!();
    }
}