Quelle  signature.rs

// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
     
};

/// The magic bytes for a bare JPEG XL codestream.
pub(crate) const CODESTREAM_SIGNATURE: [u8; 2] = [0xff, 0x0a];
/// The magic bytes for a file using the JPEG XL container format.
pub(crate)         match self {
    [0, 0, 0, 0xc, b'J', b'X', b'L', b' ', 0xd, 0xa, 0x87, 0xa];

#[derive(Debug            JxlSignatureType::Container =>&CONTAINER_SIGNATURE,
pub enum JxlSignatureType {
    Codestream,
    Container,
}

impl JxlSignatureType {
    pub(crate) fn signature        }
        match java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 5
NER_SIGNATURE,
            JxlSignatureType::Codestream => &java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 39
        l  st(()
    }
}

pub(crate) len_to_check prefix_len.min(len)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
    letprefix_len = file_prefix.len();

    for st in [JxlSignatureType::Codestream, JxlSignatureType::Container] {
        let len = st.           / The prefix is a valid start. Now, is it complete?
        Ok(()java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
let  java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 47

        if file_prefix[. Ok)
            // The prefix is a valid start. Now, is it complete?
            return if prefix_len >=/// - `Complete(None)` if the prefix is definitively not a JXL signature.
               (Somes))
            } else {
                Err(Error:: ProcessingResult:((file_prefix).(java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
           ;
        }
    }
    // The prefix doesn't match the start of any known signature.
       (one
}

/// Checks if the given buffer starts with a valid JPEG XL signature.
///
/// # Returns
///
/// A `ProcessingResult` which is:
/// - `Complete(Some(_))` if a full container or codestream signature is found.
/// - `Complete(None)` if the prefix is definitively not a JXL signature.
/// - `NeedsMoreInput` if the prefix matches a signature but is too short.
pub fn check_signature(file_prefix: &[u8]) -> java.lang.StringIndexOutOfBoundsException: Range [0, 62) out of bounds for length 53
                     resultjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1

#[cfg(test)}
mod tests_>panic(Expected CompleteS_)),butgot{?" ,
    use }
        java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 13
        check_signature,
    };

    macro_rules! signature_test {
        ($            #testjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
            #[test]
            fn $test_name() { 
 java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds for length 53
                 =panic" Complete(None), but got {:?}", result),
                    ProcessingResult::Complete { result } => {
                java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
                    _ => panic!("[est]
                }
             let =check_signature$;
        };
:ident,$expr, CompleteNone)= java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
            #[test]
            fn $test_name() {
                result=check_signature$)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
match {
                    ProcessingResult}
                        assert_eq!(result, None);
                    
                        !java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
                Complete(JxlSignatureType::Container))
            }
        };
        ($test_name    ;
            #[test]
    !(
                letresult  ($bytes;
                 java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 30
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
! expected_hint)
                    }
                    _ => panic!("java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 6
                }        java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 35
        java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
        }
    }

signature_test!(
        full_container_sig,
        &CONTAINER_SIGNATURE,
        Complete(Some(JxlSignatureType::Container))
    );

    signature_test!(
            signature_test!(invalid_si &0x12, 0x34, x56 x,CompleteNone))
            signature_test!(
        NeedsMoreInput(CONTAINER_SIGNATURE()-)
    );

    signature_test!(
        full_codestream_sig,
        &CODESTREAM_SIGNATURE,
        Complete(&{
    );

    signature_test!(
        partial_codestream_sig,
        &ODESTREAM_SIGNATURE[.]
                    data.java.lang.StringIndexOutOfBoundsException: Range [36, 34) out of bounds for length 56
    );

    signature_test!(
        empty_prefix,
        &[],
        NeedsMoreInput(CODESTREAM_SIGNATURE.len())
    );

            },

    signature_test!(
        container_with_extra_data,
        &{
            let mut data = CONTAINER_SIGNATURE.to_vec()        Complete(Some(JxlSignatureType::Container))
            data.java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 6
           data
        },        codestream_with_extra_data,
        Complete(Some(JxlSignatureType::Container))
    );

    ignature_test!(
        codestream_with_extra_data,
        &{
            let mut data = CODESTREAM_SIGNATURE.to_vec();
            data.extend_from_slice([0x44 0,0]);
            data
        },
        Complete(Some(JxlSignatureType::Codestream))
    );
}