av_format/
stream.rs

1use crate::data::params::CodecParams;
2use crate::rational::Rational64;
3use std::any::Any;
4use std::sync::Arc;
5
6/// Stream data.
7#[derive(Debug, Clone)]
8pub struct Stream {
9    /// Format-specific track identifier.
10    ///
11    /// If negative, either the stream is not supported by the
12    /// underlying format or the default progression should be used.
13    ///
14    /// Must be unique for each stream.
15    pub id: isize,
16    /// Stream position within the source file.
17    pub index: usize,
18    /// Codec parameters of the stream.
19    pub params: CodecParams,
20    /// Start position of the stream.
21    ///
22    /// If `None`, start position of the stream is not considered.
23    pub start: Option<u64>,
24    /// Stream duration.
25    ///
26    /// If `None`, stream duration is not considered.
27    pub duration: Option<u64>,
28    /// Timebase numerator/denominator.
29    pub timebase: Rational64,
30    /// User private data.
31    ///
32    /// This data cannot be cloned.
33    pub user_private: Option<Arc<dyn Any + Send + Sync>>,
34}
35
36impl Stream {
37    /// Creates a new `Stream` instance from codec parameters.
38    pub fn from_params(params: &CodecParams, timebase: Rational64) -> Self {
39        Stream {
40            id: -1,
41            index: 0,
42            params: params.clone(),
43            start: None,
44            duration: None,
45            timebase,
46            user_private: None,
47        }
48    }
49    /// Returns extradata associated to the codec parameters of a stream.
50    pub fn get_extradata(&self) -> Option<&[u8]> {
51        self.params.extradata.as_deref()
52    }
53}
54
55/// Group of streams.
56pub struct StreamGroup<'a> {
57    /// Stream group ID.
58    ///
59    /// Must be unique for each group of stream.
60    pub id: usize,
61    /// Start position of the stream group.
62    pub start: u64,
63    /// End position of the stream group.
64    pub end: u64,
65    /// Streams of the group.
66    pub streams: &'a [Stream],
67}
av_format/stream.rs

av_format/
stream.rs
