gstreamer/
context.rs

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1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::{ffi::CStr, fmt};
4
5use glib::translate::{from_glib, from_glib_full, IntoGlib, ToGlibPtr};
6
7use crate::{ffi, StructureRef};
8
9mini_object_wrapper!(Context, ContextRef, ffi::GstContext, || {
10    ffi::gst_context_get_type()
11});
12
13impl Context {
14    /// Creates a new context.
15    /// ## `context_type`
16    /// Context type
17    /// ## `persistent`
18    /// Persistent context
19    ///
20    /// # Returns
21    ///
22    /// The new context.
23    #[doc(alias = "gst_context_new")]
24    pub fn new(context_type: &str, persistent: bool) -> Self {
25        assert_initialized_main_thread!();
26        unsafe {
27            from_glib_full(ffi::gst_context_new(
28                context_type.to_glib_none().0,
29                persistent.into_glib(),
30            ))
31        }
32    }
33}
34
35impl ContextRef {
36    #[doc(alias = "get_context_type")]
37    #[doc(alias = "gst_context_get_context_type")]
38    pub fn context_type(&self) -> &str {
39        unsafe {
40            let raw = ffi::gst_context_get_context_type(self.as_mut_ptr());
41            CStr::from_ptr(raw).to_str().unwrap()
42        }
43    }
44
45    #[doc(alias = "gst_context_has_context_type")]
46    pub fn has_context_type(&self, context_type: &str) -> bool {
47        unsafe {
48            from_glib(ffi::gst_context_has_context_type(
49                self.as_mut_ptr(),
50                context_type.to_glib_none().0,
51            ))
52        }
53    }
54
55    #[doc(alias = "gst_context_is_persistent")]
56    pub fn is_persistent(&self) -> bool {
57        unsafe { from_glib(ffi::gst_context_is_persistent(self.as_mut_ptr())) }
58    }
59
60    #[doc(alias = "get_structure")]
61    #[doc(alias = "gst_context_get_structure")]
62    pub fn structure(&self) -> &StructureRef {
63        unsafe { StructureRef::from_glib_borrow(ffi::gst_context_get_structure(self.as_mut_ptr())) }
64    }
65
66    #[doc(alias = "get_mut_structure")]
67    pub fn structure_mut(&mut self) -> &mut StructureRef {
68        unsafe {
69            StructureRef::from_glib_borrow_mut(ffi::gst_context_writable_structure(
70                self.as_mut_ptr(),
71            ))
72        }
73    }
74}
75
76impl fmt::Debug for Context {
77    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
78        ContextRef::fmt(self, f)
79    }
80}
81
82impl fmt::Debug for ContextRef {
83    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
84        f.debug_struct("Context")
85            .field("type", &self.context_type())
86            .field("structure", &self.structure())
87            .finish()
88    }
89}
gstreamer/context.rs

gstreamer/
context.rs
