1use super::{Sink, Source};
2use ffi::*;
3use libc::c_void;
4use {format, option, ChannelLayout};
5
6pub struct Context {
7 ptr: *mut AVFilterContext,
8}
9
10impl Context {
11 pub unsafe fn wrap(ptr: *mut AVFilterContext) -> Self {
12 Context { ptr }
13 }
14
15 pub unsafe fn as_ptr(&self) -> *const AVFilterContext {
16 self.ptr as *const _
17 }
18
19 pub unsafe fn as_mut_ptr(&mut self) -> *mut AVFilterContext {
20 self.ptr
21 }
22}
23
24impl Context {
25 pub fn source(&mut self) -> Source {
26 unsafe { Source::wrap(self) }
27 }
28
29 pub fn sink(&mut self) -> Sink {
30 unsafe { Sink::wrap(self) }
31 }
32
33 pub fn set_pixel_format(&mut self, value: format::Pixel) {
34 let _ = option::Settable::set::<AVPixelFormat>(self, "pix_fmts", &value.into());
35 }
36
37 pub fn set_sample_format(&mut self, value: format::Sample) {
38 let _ = option::Settable::set::<AVSampleFormat>(self, "sample_fmts", &value.into());
39 }
40
41 pub fn set_sample_rate(&mut self, value: u32) {
42 let _ = option::Settable::set(self, "sample_rates", &i64::from(value));
43 }
44
45 pub fn set_channel_layout(&mut self, value: ChannelLayout) {
46 #[cfg(not(feature = "ffmpeg_7_0"))]
47 {
48 let _ = option::Settable::set(self, "channel_layouts", &value.bits());
49 }
50 #[cfg(feature = "ffmpeg_7_0")]
51 {
52 let _ = option::Settable::set_channel_layout(self, "channel_layouts", value);
53 }
54 }
55
56 pub fn link(&mut self, srcpad: u32, dst: &mut Self, dstpad: u32) {
57 unsafe { avfilter_link(self.as_mut_ptr(), srcpad, dst.as_mut_ptr(), dstpad) };
58 }
59}
60
61unsafe impl option::Target for Context {
62 fn as_ptr(&self) -> *const c_void {
63 self.ptr as *const _
64 }
65
66 fn as_mut_ptr(&mut self) -> *mut c_void {
67 self.ptr as *mut _
68 }
69}
70
71impl option::Settable for Context {}
72