playa_ffmpeg/filter/context/
context.rs

1use super::{Sink, Source};
2use crate::{ChannelLayout, ffi::*, format, option};
3use libc::c_void;
4
5pub struct Context {
6    ptr: *mut AVFilterContext,
7}
8
9impl Context {
10    pub unsafe fn wrap(ptr: *mut AVFilterContext) -> Self {
11        Context { ptr }
12    }
13
14    pub unsafe fn as_ptr(&self) -> *const AVFilterContext {
15        self.ptr as *const _
16    }
17
18    pub unsafe fn as_mut_ptr(&mut self) -> *mut AVFilterContext {
19        self.ptr
20    }
21}
22
23impl Context {
24    pub fn source(&mut self) -> Source<'_> {
25        unsafe { Source::wrap(self) }
26    }
27
28    pub fn sink(&mut self) -> Sink<'_> {
29        unsafe { Sink::wrap(self) }
30    }
31
32    pub fn set_pixel_format(&mut self, value: format::Pixel) {
33        let _ = option::Settable::set::<AVPixelFormat>(self, "pix_fmts", &value.into());
34    }
35
36    pub fn set_sample_format(&mut self, value: format::Sample) {
37        let _ = option::Settable::set::<AVSampleFormat>(self, "sample_fmts", &value.into());
38    }
39
40    pub fn set_sample_rate(&mut self, value: u32) {
41        let _ = option::Settable::set(self, "sample_rates", &i64::from(value));
42    }
43
44    pub fn set_channel_layout(&mut self, value: ChannelLayout) {
45        #[cfg(not(feature = "ffmpeg_7_0"))]
46        {
47            let _ = option::Settable::set(self, "channel_layouts", &value.bits());
48        }
49        #[cfg(feature = "ffmpeg_7_0")]
50        {
51            let _ = option::Settable::set_channel_layout(self, "channel_layouts", value);
52        }
53    }
54
55    pub fn link(&mut self, srcpad: u32, dst: &mut Self, dstpad: u32) {
56        unsafe { avfilter_link(self.as_mut_ptr(), srcpad, dst.as_mut_ptr(), dstpad) };
57    }
58}
59
60unsafe impl option::Target for Context {
61    fn as_ptr(&self) -> *const c_void {
62        self.ptr as *const _
63    }
64
65    fn as_mut_ptr(&mut self) -> *mut c_void {
66        self.ptr as *mut _
67    }
68}
69
70impl option::Settable for Context {}
playa_ffmpeg/filter/context/context.rs

playa_ffmpeg/filter/context/
context.rs
