av_format/
error.rs

1use std::fmt;
2use std::io;
3
4/// General muxing/demuxing errors.
5#[derive(Debug)]
6pub enum Error {
7    /// Invalid input data.
8    InvalidData,
9    /// A muxing/demuxing operation needs more data to be completed.
10    MoreDataNeeded(usize),
11    /// A more generic I/O error.
12    Io(io::Error),
13}
14
15impl std::error::Error for Error {
16    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
17        match self {
18            Self::Io(inner) => Some(inner),
19            _ => None,
20        }
21    }
22}
23
24impl fmt::Display for Error {
25    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
26        match self {
27            Error::InvalidData => write!(f, "Invalid Data"),
28            Error::MoreDataNeeded(n) => write!(f, "{n} more bytes needed"),
29            Error::Io(_) => write!(f, "I/O error"),
30        }
31    }
32}
33
34impl From<io::Error> for Error {
35    fn from(value: io::Error) -> Self {
36        Self::Io(value)
37    }
38}
39
40/// A specialized `Result` type for muxing/demuxing operations.
41pub type Result<T> = ::std::result::Result<T, Error>;
42
43#[cfg(test)]
44mod tests {
45    use super::*;
46
47    #[test]
48    fn io_error_conversion() {
49        let io_err = io::Error::new(io::ErrorKind::Other, "foobar");
50
51        let err: Error = io_err.into();
52
53        match err {
54            Error::Io(_) => {}
55            _ => panic!("Error doesn't match"),
56        }
57    }
58}
av_format/error.rs

av_format/
error.rs
