vapoursynth/map/
value.rs

1use crate::frame::FrameRef;
2use crate::function::Function;
3use crate::map::{Map, Result, ValueIter};
4use crate::node::Node;
5
6/// An enumeration of all possible value types.
7#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
8pub enum ValueType {
9    Int,
10    Float,
11    Data,
12    VideoNode,
13    AudioNode,
14    VideoFrame,
15    AudioFrame,
16    Function,
17}
18
19/// A trait for values which can be stored in a map.
20pub trait Value<'map, 'elem: 'map>: Sized {
21    /// Retrieves the value from the map.
22    fn get_from_map(map: &'map Map<'elem>, key: &str) -> Result<Self>;
23
24    /// Retrieves an iterator over the values from the map.
25    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>>;
26
27    /// Sets the property value in the map.
28    fn store_in_map(map: &'map mut Map<'elem>, key: &str, x: &Self) -> Result<()>;
29
30    /// Appends the value to the map.
31    fn append_to_map(map: &'map mut Map<'elem>, key: &str, x: &Self) -> Result<()>;
32}
33
34impl<'map, 'elem: 'map> Value<'map, 'elem> for i64 {
35    #[inline]
36    fn get_from_map(map: &Map, key: &str) -> Result<Self> {
37        map.get_int(key)
38    }
39
40    #[inline]
41    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
42        map.get_int_iter(key)
43    }
44
45    #[inline]
46    fn store_in_map(map: &mut Map, key: &str, x: &Self) -> Result<()> {
47        map.set_int(key, *x)
48    }
49
50    #[inline]
51    fn append_to_map(map: &mut Map, key: &str, x: &Self) -> Result<()> {
52        map.append_int(key, *x)
53    }
54}
55
56impl<'map, 'elem: 'map> Value<'map, 'elem> for f64 {
57    fn get_from_map(map: &Map, key: &str) -> Result<Self> {
58        map.get_float(key)
59    }
60
61    #[inline]
62    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
63        map.get_float_iter(key)
64    }
65
66    #[inline]
67    fn store_in_map(map: &mut Map, key: &str, x: &Self) -> Result<()> {
68        map.set_float(key, *x)
69    }
70
71    #[inline]
72    fn append_to_map(map: &mut Map, key: &str, x: &Self) -> Result<()> {
73        map.append_float(key, *x)
74    }
75}
76
77impl<'map, 'elem: 'map> Value<'map, 'elem> for &'map [u8] {
78    #[inline]
79    fn get_from_map(map: &'map Map, key: &str) -> Result<Self> {
80        map.get_data(key)
81    }
82
83    #[inline]
84    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
85        map.get_data_iter(key)
86    }
87
88    #[inline]
89    fn store_in_map(map: &'map mut Map, key: &str, x: &Self) -> Result<()> {
90        map.set_data(key, x)
91    }
92
93    #[inline]
94    fn append_to_map(map: &'map mut Map, key: &str, x: &Self) -> Result<()> {
95        map.append_data(key, x)
96    }
97}
98
99impl<'map, 'elem: 'map> Value<'map, 'elem> for Node<'elem> {
100    #[inline]
101    fn get_from_map(map: &Map<'elem>, key: &str) -> Result<Self> {
102        map.get_video_node(key)
103    }
104
105    #[inline]
106    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
107        map.get_video_node_iter(key)
108    }
109
110    #[inline]
111    fn store_in_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
112        map.set_node(key, x)
113    }
114
115    #[inline]
116    fn append_to_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
117        map.append_node(key, x)
118    }
119}
120
121impl<'map, 'elem: 'map> Value<'map, 'elem> for FrameRef<'elem> {
122    #[inline]
123    fn get_from_map(map: &Map<'elem>, key: &str) -> Result<Self> {
124        map.get_video_frame(key)
125    }
126
127    #[inline]
128    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
129        map.get_video_frame_iter(key)
130    }
131
132    #[inline]
133    fn store_in_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
134        map.set_frame(key, x)
135    }
136
137    #[inline]
138    fn append_to_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
139        map.append_frame(key, x)
140    }
141}
142
143impl<'map, 'elem: 'map> Value<'map, 'elem> for Function<'elem> {
144    #[inline]
145    fn get_from_map(map: &Map<'elem>, key: &str) -> Result<Self> {
146        map.get_function(key)
147    }
148
149    #[inline]
150    fn get_iter_from_map(map: &'map Map<'elem>, key: &str) -> Result<ValueIter<'map, 'elem, Self>> {
151        map.get_function_iter(key)
152    }
153
154    #[inline]
155    fn store_in_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
156        map.set_function(key, x)
157    }
158
159    #[inline]
160    fn append_to_map(map: &mut Map<'elem>, key: &str, x: &Self) -> Result<()> {
161        map.append_function(key, x)
162    }
163}
vapoursynth/map/value.rs

vapoursynth/map/
value.rs
