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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175

use ffi::*;
use std::os::raw::c_void;
use util::*;
use std::ops::{Deref, DerefMut};

use structure::Structure;
use reference::Reference;
use object::{Property, FromProperty};
use miniobject::MiniObject;
use object::Object;

#[derive(Clone)]
pub struct Caps{
	caps: MiniObject
}

impl Caps{
	pub unsafe fn new(caps: *mut GstCaps) -> Option<Caps>{
		MiniObject::new_from_gst_miniobject(caps as *mut GstMiniObject)
			.map(|miniobject| Caps{ caps: miniobject })
	}

	pub fn new_empty() -> Caps{
		unsafe{
			Caps::new(gst_caps_new_empty()).unwrap()
		}
	}

	pub fn new_empty_simple(media_type: &str) -> Caps{
		unsafe{
			let cmedia_type = CString::new(media_type).unwrap();
			Caps::new(gst_caps_new_empty_simple(cmedia_type.as_ptr())).unwrap()
		}
	}

	pub fn new_any() -> Caps{
		unsafe{
			Caps::new(gst_caps_new_any()).unwrap()
		}
	}

	pub fn is_writable(&self) -> bool{
		unsafe{
			gst_mini_object_is_writable(self.caps.gst_miniobject())!=0
		}
	}

	pub fn from_string(desc: &str) -> Option<Caps>{
		let cdesc = CString::new(desc).unwrap();
	    unsafe{
	    	Caps::new(gst_caps_from_string(mem::transmute(cdesc.as_ptr())))
	    }
	}

	pub fn to_string(&self) -> &str{
		unsafe{
			from_c_str!(gst_caps_to_string(self.gst_caps()))
		}
	}

	pub fn video_info(&self) -> Option<::VideoInfo>{
		unsafe{
			let videoinfo = mem::zeroed();
			if gst_video_info_from_caps (mem::transmute(&videoinfo), self.gst_caps()) == 1 {
				Some(videoinfo)
			}else{
			    None
			}
		}
	}

	pub unsafe fn gst_caps(&self) -> *const GstCaps{
		self.caps.gst_miniobject() as *const GstCaps
	}

	pub unsafe fn gst_caps_mut(&mut self) -> *mut GstCaps{
		self.caps.gst_miniobject_mut() as *mut GstCaps
	}

	pub fn structure(&self, index: u32) -> Option<Structure>{
		unsafe{
			let structure = gst_caps_get_structure(self.gst_caps(), index);
			Structure::new_from_gst_structure(structure)
		}
	}
}


impl ::Transfer<GstCaps> for Caps{
    unsafe fn transfer(self) ->  *mut GstCaps{
        self.caps.transfer() as *mut GstCaps
    }
}


impl Reference for Caps{
    fn reference(&self) -> Caps{
		Caps{
			caps: self.caps.reference()
		}
    }
}

impl<'a> Property for &'a Caps{
    type Target = *mut GstCaps;
    #[inline]
    fn set_to(&self, key: &str, e: &mut Object){
        let cname = CString::new(key).unwrap();
        unsafe{
            g_object_set(e.gst_object() as *mut c_void, cname.as_ptr(), self.gst_caps(), ptr::null::<gchar>());
        }
    }
}

impl Property for Caps{
    type Target = *mut GstCaps;
    #[inline]
    fn set_to(&self, key: &str, e: &mut Object){
        let cname = CString::new(key).unwrap();
        unsafe{
            g_object_set(e.gst_object() as *mut c_void, cname.as_ptr(), self.gst_caps(), ptr::null::<gchar>());
        }
    }
}

impl<'a> FromProperty for Caps{
    fn from_property(caps: *mut GstCaps) -> Caps{
        unsafe{
            Caps::new(caps).unwrap()
        }
    }
}


impl PartialEq for Caps{
    fn eq(&self, other: &Caps) -> bool{
        unsafe{
            gst_caps_is_equal(mem::transmute(self), mem::transmute(other)) != 0
        }
    }
}

impl Eq for Caps{}


impl AsRef<MiniObject> for Caps{
    fn as_ref(&self) -> &MiniObject{
        &self.caps
    }
}

impl AsMut<MiniObject> for Caps{
    fn as_mut(&mut self) -> &mut MiniObject{
        &mut self.caps
    }
}

impl From<Caps> for MiniObject{
    fn from(b: Caps) -> MiniObject{
        b.caps
    }
}

impl Deref for Caps{
    type Target = MiniObject;
    fn deref(&self) -> &MiniObject{
        &self.caps
    }
}

impl DerefMut for Caps{
    fn deref_mut(&mut self) -> &mut MiniObject{
        &mut self.caps
    }
}