ffmpeg_next/filter/context/
sink.rs

1use super::Context;
2use crate::ffi::*;
3use crate::{Error, Frame, Rational};
4use libc::c_int;
5
6pub struct Sink<'a> {
7    ctx: &'a mut Context,
8}
9
10impl<'a> Sink<'a> {
11    pub unsafe fn wrap(ctx: &'a mut Context) -> Self {
12        Self { ctx }
13    }
14}
15
16impl<'a> Sink<'a> {
17    pub fn frame(&mut self, frame: &mut Frame) -> Result<(), Error> {
18        unsafe {
19            av_frame_unref(frame.as_mut_ptr());
20            match av_buffersink_get_frame(self.ctx.as_mut_ptr(), frame.as_mut_ptr()) {
21                n if n >= 0 => Ok(()),
22                e => Err(Error::from(e)),
23            }
24        }
25    }
26
27    pub fn samples(&mut self, frame: &mut Frame, samples: usize) -> Result<(), Error> {
28        unsafe {
29            av_frame_unref(frame.as_mut_ptr());
30            match av_buffersink_get_samples(
31                self.ctx.as_mut_ptr(),
32                frame.as_mut_ptr(),
33                samples as c_int,
34            ) {
35                n if n >= 0 => Ok(()),
36                e => Err(Error::from(e)),
37            }
38        }
39    }
40
41    pub fn set_frame_size(&mut self, value: u32) {
42        unsafe {
43            av_buffersink_set_frame_size(self.ctx.as_mut_ptr(), value);
44        }
45    }
46
47    pub fn time_base(&self) -> Rational {
48        unsafe { av_buffersink_get_time_base(self.ctx.as_ptr()) }.into()
49    }
50}
ffmpeg_next/filter/context/sink.rs

ffmpeg_next/filter/context/
sink.rs
