feat: Add utils time related functions

src/rust/lib_ccxr/src/util/time.rs

@@ -0,0 +1,35 @@
+//! Provides Rust equivalent code for functions in `utility.c` involves time operations. Uses Rust-native types as input and output.
+
+use crate::time::units::{Timestamp, TimestampError, TimestampFormat};
+
+/// Rust equivalent for `timestamp_to_srttime` function in C.
+/// Uses Rust-native types as input and output.
+pub fn timestamp_to_srttime(
+    timestamp: Timestamp,
+    buffer: &mut String,
+) -> Result<(), TimestampError> {
+    timestamp.write_srt_time(buffer)
+}
+
+/// Rust equivalent for `timestamp_to_vtttime` function in C.
+/// Uses Rust-native types as input and output.
+pub fn timestamp_to_vtttime(
+    timestamp: Timestamp,
+    buffer: &mut String,
+) -> Result<(), TimestampError> {
+    timestamp.write_vtt_time(buffer)
+}
+
+/// Rust equivalent for `millis_to_date` function in C. Uses Rust-native types as input and output.
+pub fn millis_to_date(
+    timestamp: Timestamp,
+    buffer: &mut String,
+    date_format: TimestampFormat,
+) -> Result<(), TimestampError> {
+    timestamp.write_formatted_time(buffer, date_format)
+}
+
+/// Rust equivalent for `stringztoms` function in C. Uses Rust-native types as input and output.
+pub fn stringztoms(s: &str) -> Option<Timestamp> {
+    Timestamp::parse_optional_hhmmss_from_str(s).ok()
+}