1use std::ptr;
2
3use ffi::*;
4use format;
5use Format;
6
7pub struct AudioIter(*mut AVOutputFormat);
8
9impl Iterator for AudioIter {
10 type Item = Format;
11
12 fn next(&mut self) -> Option<<Self as Iterator>::Item> {
13 unsafe {
14 // We get a clippy warning in 4.4 but not in 5.0 and newer, so we allow that cast to not complicate the code
15 #[allow(clippy::unnecessary_cast)]
16 let ptr: *mut {unknown} = av_output_audio_device_next(self.0) as *mut AVOutputFormat;
17
18 if ptr.is_null() && !self.0.is_null() {
19 None
20 } else {
21 self.0 = ptr;
22
23 Some(Format::Output(format::Output::wrap(ptr)))
24 }
25 }
26 }
27}
28
29pub fn audio() -> AudioIter {
30 AudioIter(ptr::null_mut())
31}
32
33pub struct VideoIter(*mut AVOutputFormat);
34
35impl Iterator for VideoIter {
36 type Item = Format;
37
38 fn next(&mut self) -> Option<<Self as Iterator>::Item> {
39 unsafe {
40 // We get a clippy warning in 4.4 but not in 5.0 and newer, so we allow that cast to not complicate the code
41 #[allow(clippy::unnecessary_cast)]
42 let ptr: *mut {unknown} = av_output_video_device_next(self.0) as *mut AVOutputFormat;
43
44 if ptr.is_null() && !self.0.is_null() {
45 None
46 } else {
47 self.0 = ptr;
48
49 Some(Format::Output(format::Output::wrap(ptr)))
50 }
51 }
52 }
53}
54
55pub fn video() -> VideoIter {
56 VideoIter(ptr::null_mut())
57}
58