#![allow(dead_code)]
use subcue::{Error, Warning};
pub fn warning_name(warning: &Warning) -> &'static str {
match warning {
Warning::BomStripped => "BomStripped",
Warning::MixedLineEndings => "MixedLineEndings",
Warning::NoCues => "NoCues",
Warning::ComponentOutOfRange { .. } => "ComponentOutOfRange",
Warning::EndBeforeStart { .. } => "EndBeforeStart",
Warning::MissingIndex { .. } => "MissingIndex",
Warning::NonSequentialIndex { .. } => "NonSequentialIndex",
Warning::StrayText { .. } => "StrayText",
Warning::EmptyCue { .. } => "EmptyCue",
Warning::DotMillis { .. } => "DotMillis",
Warning::ShortMillis { .. } => "ShortMillis",
Warning::MissingHours { .. } => "MissingHours",
Warning::MissingBlankLine { .. } => "MissingBlankLine",
Warning::UnknownTimingSuffix { .. } => "UnknownTimingSuffix",
Warning::CommaMillis { .. } => "CommaMillis",
Warning::ShortHours { .. } => "ShortHours",
Warning::UnknownSection { .. } => "UnknownSection",
Warning::FieldCountMismatch { .. } => "FieldCountMismatch",
Warning::MissingFormatLine { .. } => "MissingFormatLine",
Warning::AssFractionDigits { .. } => "AssFractionDigits",
Warning::UnknownStyle { .. } => "UnknownStyle",
Warning::BadField { .. } => "BadField",
Warning::UpgradedToV4Plus => "UpgradedToV4Plus",
Warning::MissingStyles => "MissingStyles",
Warning::FormatReordered => "FormatReordered",
Warning::TimePrecisionLost { .. } => "TimePrecisionLost",
Warning::LossyTag { .. } => "LossyTag",
Warning::DroppedSettings { .. } => "DroppedSettings",
Warning::DroppedId { .. } => "DroppedId",
Warning::DroppedBlock { .. } => "DroppedBlock",
Warning::DroppedEvent { .. } => "DroppedEvent",
}
}
pub fn error_name(error: &Error) -> &'static str {
match error {
Error::Utf16Input => "Utf16Input",
Error::InvalidUtf8 { .. } => "InvalidUtf8",
Error::TimeOutOfRange { .. } => "TimeOutOfRange",
Error::NegativeTime { .. } => "NegativeTime",
Error::InvalidTimestamp { .. } => "InvalidTimestamp",
Error::MissingArrow { .. } => "MissingArrow",
Error::MissingHeader { .. } => "MissingHeader",
Error::NotAss { .. } => "NotAss",
Error::Io(_) => "Io",
}
}
pub fn error_line(error: &Error) -> Option<usize> {
match error {
Error::TimeOutOfRange { line }
| Error::NegativeTime { line }
| Error::InvalidTimestamp { line }
| Error::MissingArrow { line }
| Error::NotAss { line }
| Error::MissingHeader { line, .. } => Some(*line),
Error::Utf16Input | Error::InvalidUtf8 { .. } | Error::Io(_) => None,
}
}
pub fn error_offset(error: &Error) -> Option<usize> {
match error {
Error::InvalidUtf8 { offset } => Some(*offset),
_ => None,
}
}
pub fn sha256(input: &[u8]) -> String {
const INITIAL: [u32; 8] = [
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab,
0x5be0cd19,
];
const K: [u32; 64] = [
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4,
0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe,
0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f,
0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc,
0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116,
0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7,
0xc67178f2,
];
let bit_len = (input.len() as u64) * 8;
let mut data = input.to_vec();
data.push(0x80);
while data.len() % 64 != 56 {
data.push(0);
}
data.extend_from_slice(&bit_len.to_be_bytes());
let mut hash = INITIAL;
for chunk in data.chunks_exact(64) {
let mut words = [0_u32; 64];
for (index, word) in words[..16].iter_mut().enumerate() {
let offset = index * 4;
*word = u32::from_be_bytes([
chunk[offset],
chunk[offset + 1],
chunk[offset + 2],
chunk[offset + 3],
]);
}
for index in 16..64 {
let s0 = words[index - 15].rotate_right(7)
^ words[index - 15].rotate_right(18)
^ (words[index - 15] >> 3);
let s1 = words[index - 2].rotate_right(17)
^ words[index - 2].rotate_right(19)
^ (words[index - 2] >> 10);
words[index] = words[index - 16]
.wrapping_add(s0)
.wrapping_add(words[index - 7])
.wrapping_add(s1);
}
let [mut a, mut b, mut c, mut d, mut e, mut f, mut g, mut h] = hash;
for index in 0..64 {
let upper = e.rotate_right(6) ^ e.rotate_right(11) ^ e.rotate_right(25);
let choose = (e & f) ^ ((!e) & g);
let first = h
.wrapping_add(upper)
.wrapping_add(choose)
.wrapping_add(K[index])
.wrapping_add(words[index]);
let lower = a.rotate_right(2) ^ a.rotate_right(13) ^ a.rotate_right(22);
let majority = (a & b) ^ (a & c) ^ (b & c);
let second = lower.wrapping_add(majority);
h = g;
g = f;
f = e;
e = d.wrapping_add(first);
d = c;
c = b;
b = a;
a = first.wrapping_add(second);
}
for (state, value) in hash.iter_mut().zip([a, b, c, d, e, f, g, h]) {
*state = state.wrapping_add(value);
}
}
hash.iter().map(|word| format!("{word:08x}")).collect()
}
pub fn perf_srt(count: usize) -> Vec<u8> {
let mut output = String::new();
for index in 0..count {
let start = index as i64 * 3000;
let end = start + 2500;
output.push_str(&format!(
"{}\n{:02}:{:02}:{:02},{:03} --> {:02}:{:02}:{:02},{:03}\nLine one of cue {}\n<i>Line two</i> of cue {}\n\n",
index + 1,
start / 3_600_000,
start / 60_000 % 60,
start / 1000 % 60,
start % 1000,
end / 3_600_000,
end / 60_000 % 60,
end / 1000 % 60,
end % 1000,
index + 1,
index + 1
));
}
output.into_bytes()
}
pub fn perf_vtt(count: usize) -> Vec<u8> {
let mut output = String::from("WEBVTT\n\n");
for index in 0..count {
let start = index as i64 * 3000;
let end = start + 2500;
output.push_str(&format!(
"{}\n{:02}:{:02}:{:02}.{:03} --> {:02}:{:02}:{:02}.{:03} align:start\nLine one of cue {}\n<i>Line two</i> of cue {}\n\n",
index + 1,
start / 3_600_000,
start / 60_000 % 60,
start / 1000 % 60,
start % 1000,
end / 3_600_000,
end / 60_000 % 60,
end / 1000 % 60,
end % 1000,
index + 1,
index + 1
));
}
output.into_bytes()
}
pub fn perf_ass(count: usize) -> Vec<u8> {
let mut output = String::from("[Script Info]\n; Script generated");
output.push_str(" by hand\nTitle: Basic\nScriptType: v4.00+\nWrapStyle: 0\nPlayResX: 1280\nPlayResY: 720\nScaledBorderAndShadow: yes\nYCbCr Matrix: TV.709\n\n[V4+ Styles]\nFormat: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding\nStyle: Default,Arial,48,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,2,0,2,10,10,10,1\nStyle: Top,Arial,40,&H00FFFF00,&H000000FF,&H00000000,&H80000000,-1,0,0,0,100,100,0,0,1,2,1,8,10,10,20,1\n\n[Events]\nFormat: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n");
for index in 0..count {
let start = index as i64 * 3000;
let end = start + 2500;
output.push_str(&format!(
"Dialogue: 0,{}:{:02}:{:02}.{:02},{}:{:02}:{:02}.{:02},Default,,0,0,0,,Line one of cue {}\\N{{\\i1}}Line two{{\\i0}} of cue {}\n",
start / 3_600_000,
start / 60_000 % 60,
start / 1000 % 60,
start % 1000 / 10,
end / 3_600_000,
end / 60_000 % 60,
end / 1000 % 60,
end % 1000 / 10,
index + 1,
index + 1
));
}
output.into_bytes()
}