libav_ng/avformat/
streams_iter.rs

1
2use crate::{avformat::FormatContext, avstream::Stream};
3
4pub struct FormatStreamsIter<'a> {
5    position: usize,
6    count: usize,
7    format_ctx: &'a mut FormatContext,
8}
9
10impl<'a> FormatStreamsIter<'a> {
11    pub fn new(format_ctx: &'a mut FormatContext) -> Self {
12        let count = unsafe { format_ctx.raw().nb_streams } as usize;
13
14        Self {
15            position: 0,
16            count,
17            format_ctx,
18        }
19    }
20}
21
22impl Iterator for FormatStreamsIter<'_> {
23    type Item = Stream;
24
25    fn next(&mut self) -> Option<Self::Item> {
26        if self.position >= self.count {
27            return None;
28        }
29
30        let stream = unsafe { self.format_ctx.raw().streams.add(self.position).read() };
31
32        self.position += 1;
33
34        Some(Stream { _stream: stream })
35    }
36}

libav_ng/avformat/streams_iter.rs

libav_ng/avformat/
streams_iter.rs