144 lines
3.4 KiB
C#
Executable File
144 lines
3.4 KiB
C#
Executable File
using UnityEngine;
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using System.Collections.Generic;
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//-----------------------------------------------------------------------------
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// Copyright 2015-2021 RenderHeads Ltd. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace RenderHeads.Media.AVProVideo
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{
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public class Subtitle
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{
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public int index;
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// Rich string can contain <font color=""> <u> etc
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public string text;
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public double timeStart, timeEnd;
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public bool IsBefore(double time)
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{
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return (time > timeStart && time > timeEnd);
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}
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public bool IsTime(double time)
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{
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return (time >= timeStart && time < timeEnd);
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}
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}
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public class SubtitlePlayer
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{
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// min time, max time
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// set time
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// event for change(subs added, subs removed)
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// list of subs on
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}
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public class SubtitleUtils
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{
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/// <summary>
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/// Parse time in format: 00:00:48,924 and convert to seconds
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/// </summary>
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private static double ParseTimeToSeconds(string text)
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{
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double result = 0.0;
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string[] digits = text.Split(new char[] { ':', ',' });
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if (digits.Length == 4)
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{
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int hours = int.Parse(digits[0]);
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int minutes = int.Parse(digits[1]);
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int seconds = int.Parse(digits[2]);
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int milliseconds = int.Parse(digits[3]);
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result = (milliseconds / 1000.0) + (seconds + (minutes + (hours * 60)) * 60);
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}
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return result;
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}
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/// <summary>
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/// Parse subtitles in the SRT format and convert to a list of ordered Subtitle objects
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/// </summary>
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public static List<Subtitle> ParseSubtitlesSRT(string data)
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{
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List<Subtitle> result = null;
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if (!string.IsNullOrEmpty(data))
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{
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data = data.Trim();
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var rx = new System.Text.RegularExpressions.Regex("\n\r|\r\n|\n|\r");
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string[] lines = rx.Split(data);
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if (lines.Length >= 3)
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{
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result = new List<Subtitle>(256);
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int count = 0;
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int index = 0;
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Subtitle subtitle = null;
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for (int i = 0; i < lines.Length; i++)
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{
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if (index == 0)
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{
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subtitle = new Subtitle();
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subtitle.index = count;// int.Parse(lines[i]);
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}
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else if (index == 1)
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{
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string[] times = lines[i].Split(new string[] { " --> " }, System.StringSplitOptions.RemoveEmptyEntries);
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if (times.Length == 2)
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{
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subtitle.timeStart = ParseTimeToSeconds(times[0]);
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subtitle.timeEnd = ParseTimeToSeconds(times[1]);
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}
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else
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{
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throw new System.FormatException("SRT format doesn't appear to be valid");
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}
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}
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else
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{
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if (!string.IsNullOrEmpty(lines[i]))
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{
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if (index == 2)
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{
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subtitle.text = lines[i];
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}
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else
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{
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subtitle.text += "\n" + lines[i];
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}
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}
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}
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if (string.IsNullOrEmpty(lines[i]) && index > 1)
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{
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result.Add(subtitle);
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index = 0;
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count++;
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subtitle = null;
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}
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else
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{
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index++;
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}
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}
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// Handle the last one
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if (subtitle != null)
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{
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result.Add(subtitle);
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subtitle = null;
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}
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}
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else
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{
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Debug.LogWarning("[AVProVideo] SRT format doesn't appear to be valid");
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}
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}
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return result;
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}
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}
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} |