iso_bmff/
types.rs

1//! Freestanding track/Sample types (no Mediaway dependency).
2
3#![forbid(unsafe_code)]
4
5pub use bytes::Bytes;
6
7/// Integer rational timebase (`num / den` seconds).
8#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
9pub struct Rational {
10    /// Numerator.
11    pub num: u64,
12    /// Denominator (non-zero for valid timebases).
13    pub den: u32,
14}
15
16impl Rational {
17    /// Construct a rational.
18    #[must_use]
19    pub const fn new(num: u64, den: u32) -> Self {
20        Self { num, den }
21    }
22}
23
24/// Codec identity for a track.
25#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
26#[non_exhaustive]
27pub enum Codec {
28    /// H.264 / AVC.
29    H264,
30    /// HEVC / H.265.
31    Hevc,
32    /// AV1.
33    Av1,
34    /// VP9.
35    Vp9,
36    /// AAC.
37    Aac,
38    /// Opus.
39    Opus,
40    /// `WebVTT`.
41    WebVtt,
42    /// Tx3g.
43    Tx3g,
44}
45
46/// Track / stream description from `moov` (or mux registration).
47#[derive(Debug, Clone, PartialEq, Eq)]
48pub struct Track {
49    /// 0-based track id.
50    pub id: u32,
51    /// Codec.
52    pub codec: Codec,
53    /// Media timebase.
54    pub time_base: Rational,
55    /// Video width (0 for audio).
56    pub width: u32,
57    /// Video height (0 for audio).
58    pub height: u32,
59    /// Codec config (e.g. AVCC).
60    pub extra_data: Bytes,
61}
62
63/// One compressed sample.
64#[derive(Debug, Clone, PartialEq, Eq)]
65pub struct Sample {
66    /// Track id.
67    pub stream_id: u32,
68    /// Presentation timestamp (media timescale; may be negative after edit-list remap).
69    pub pts: i64,
70    /// Decode timestamp (media timescale; may be negative after edit-list remap).
71    pub dts: i64,
72    /// Duration.
73    pub duration: u64,
74    /// Sync / keyframe.
75    pub is_keyframe: bool,
76    /// Outside the active edit window (decode dependency / padding). Decoders may skip.
77    pub is_discard: bool,
78    /// Payload bytes.
79    pub payload: Bytes,
80}
iso_bmff/types.rs

iso_bmff/
types.rs
