#![allow(clippy::uninlined_format_args)]
use std::io::{ErrorKind, Read};
pub use error::JfifError;
pub use handler::Handler;
pub use reader::{
App0Jfif, Dac, Dht, Dqt, Frame, FrameComponent, Reader, Rst, Scan, ScanComponent, Segment,
SegmentKind,
};
pub use text::TextFormat;
#[cfg(feature = "json")]
pub use crate::json::JsonFormat;
mod error;
mod handler;
#[cfg(feature = "json")]
mod json;
mod reader;
mod text;
pub fn read<H: Handler, R: Read>(input: R, handler: &mut H) -> Result<(), JfifError> {
let mut reader = Reader::new(input)?;
loop {
let segment = match reader.next_segment() {
Ok(segment) => segment,
Err(JfifError::IoError(ioerror)) => {
return if ioerror.kind() == ErrorKind::UnexpectedEof {
Ok(())
} else {
Err(JfifError::IoError(ioerror))
}
}
Err(err) => return Err(err),
};
match segment.kind {
SegmentKind::Soi => handler.handle_soi(segment.position, segment.length),
SegmentKind::Eoi => handler.handle_eoi(segment.position, segment.length),
SegmentKind::App { nr, data } => {
handler.handle_app(segment.position, segment.length, nr, &data)
}
SegmentKind::App0Jfif(jfif) => {
handler.handle_app0_jfif(segment.position, segment.length, &jfif)
}
SegmentKind::Dqt(tables) => {
handler.handle_dqt(segment.position, segment.length, &tables)
}
SegmentKind::Dht(tables) => {
handler.handle_dht(segment.position, segment.length, &tables)
}
SegmentKind::Dac(dac) => handler.handle_dac(segment.position, segment.length, &dac),
SegmentKind::Frame(frame) => {
handler.handle_frame(segment.position, segment.length, &frame)
}
SegmentKind::Scan(scan) => handler.handle_scan(segment.position, segment.length, &scan),
SegmentKind::Dri(restart) => {
handler.handle_dri(segment.position, segment.length, restart)
}
SegmentKind::Rst(rst) => handler.handle_rst(segment.position, segment.length, &rst),
SegmentKind::Comment(data) => {
handler.handle_comment(segment.position, segment.length, &data)
}
SegmentKind::Unknown { marker, data } => {
handler.handle_unknown(segment.position, segment.length, marker, &data)
}
};
}
}