mirror of
https://github.com/BililiveRecorder/BililiveRecorder.git
synced 2024-12-27 12:35:35 +08:00
348 lines
18 KiB
C#
348 lines
18 KiB
C#
using System;
|
||
using System.Collections.Generic;
|
||
using System.IO;
|
||
using System.Linq;
|
||
using System.Text;
|
||
using System.Threading;
|
||
using System.Threading.Tasks;
|
||
using System.Xml;
|
||
using System.Xml.Linq;
|
||
|
||
namespace BililiveRecorder.ToolBox.Tool.DanmakuMerger
|
||
{
|
||
public class DanmakuMergerHandler : ICommandHandler<DanmakuMergerRequest, DanmakuMergerResponse>
|
||
{
|
||
private static readonly string[] DanmakuElementNames = new[] { "d", "gift", "sc", "guard" };
|
||
|
||
public string Name => "Merge Danmaku";
|
||
|
||
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
|
||
public async Task<CommandResponse<DanmakuMergerResponse>> Handle(DanmakuMergerRequest request, CancellationToken cancellationToken, ProgressCallback? progress)
|
||
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
|
||
{
|
||
var inputLength = request.Inputs.Length;
|
||
|
||
if (inputLength < 2)
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.Error,
|
||
ErrorMessage = "At least 2 input files required"
|
||
};
|
||
|
||
if (request.Offsets is not null)
|
||
{
|
||
if (request.Offsets.Length != inputLength)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.Error,
|
||
ErrorMessage = "The number of offsets should match the number of input files."
|
||
};
|
||
}
|
||
}
|
||
|
||
var files = new FileStream[inputLength];
|
||
var readers = new XmlReader?[inputLength];
|
||
|
||
FileStream? outputFile = null;
|
||
XmlWriter? writer = null;
|
||
XElement recordInfo;
|
||
|
||
TimeSpan[] timeDiff;
|
||
|
||
try // finally
|
||
|
||
{
|
||
// 读取文件开头并计算时间差
|
||
try
|
||
{
|
||
DateTimeOffset baseTime;
|
||
|
||
// 打开输入文件
|
||
for (var i = 0; i < inputLength; i++)
|
||
{
|
||
var file = File.Open(request.Inputs[i], FileMode.Open, FileAccess.Read, FileShare.Read);
|
||
files[i] = file;
|
||
readers[i] = XmlReader.Create(file, null);
|
||
}
|
||
|
||
// 读取XML文件开头
|
||
var startTimes = new (DateTimeOffset time, XElement element)[inputLength];
|
||
for (var i = 0; i < inputLength; i++)
|
||
{
|
||
var r = readers[i]!;
|
||
r.ReadStartElement("i");
|
||
while (r.Name != "i")
|
||
{
|
||
if (r.Name == "BililiveRecorderRecordInfo")
|
||
{
|
||
var el = (XNode.ReadFrom(r) as XElement)!;
|
||
var time = (DateTimeOffset)el.Attribute("start_time");
|
||
startTimes[i] = (time, el);
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
r.Skip();
|
||
}
|
||
}
|
||
}
|
||
|
||
if (request.Offsets is not null)
|
||
{
|
||
// 使用传递进来的参数作为时间差
|
||
timeDiff = request.Offsets.Select(x => TimeSpan.FromSeconds(x)).ToArray();
|
||
var (time, element) = startTimes[Array.IndexOf(timeDiff, timeDiff.Min())];
|
||
recordInfo = element;
|
||
baseTime = time;
|
||
}
|
||
else
|
||
{
|
||
// 使用文件内的开始时间作为时间差
|
||
var (time, element) = startTimes.OrderBy(x => x.time).First();
|
||
recordInfo = element;
|
||
baseTime = time;
|
||
timeDiff = startTimes.Select(x => x.time - baseTime).ToArray();
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.InputIOError,
|
||
Exception = ex,
|
||
ErrorMessage = ex.Message
|
||
};
|
||
}
|
||
|
||
try
|
||
{
|
||
// 打开输出文件
|
||
outputFile = File.Open(request.Output, FileMode.Create, FileAccess.ReadWrite, FileShare.None);
|
||
writer = XmlWriter.Create(outputFile, new XmlWriterSettings
|
||
{
|
||
Indent = true,
|
||
IndentChars = " ",
|
||
Encoding = Encoding.UTF8,
|
||
CloseOutput = true,
|
||
WriteEndDocumentOnClose = true,
|
||
});
|
||
|
||
// 写入文件开头
|
||
writer.WriteStartDocument();
|
||
writer.WriteProcessingInstruction("xml-stylesheet", "type=\"text/xsl\" href=\"#s\"");
|
||
writer.WriteStartElement("i");
|
||
writer.WriteComment("\nmikufans录播姬 " + GitVersionInformation.InformationalVersion + " 使用工具箱合并\nhttps://rec.danmuji.org/user/danmaku/\n本文件的弹幕信息兼容mikufans主站视频弹幕XML格式\n本XML自带样式可以在浏览器里打开（推荐使用Chrome）\n\nsc 为SuperChat\ngift为礼物\nguard为上船\n\nattribute \"raw\" 为原始数据\n");
|
||
writer.WriteElementString("chatserver", "chat.bilibili.com");
|
||
writer.WriteElementString("chatid", "0");
|
||
writer.WriteElementString("mission", "0");
|
||
writer.WriteElementString("maxlimit", "1000");
|
||
writer.WriteElementString("state", "0");
|
||
writer.WriteElementString("real_name", "0");
|
||
writer.WriteElementString("source", "0");
|
||
|
||
writer.WriteStartElement("BililiveRecorder");
|
||
writer.WriteAttributeString("version", GitVersionInformation.FullSemVer);
|
||
writer.WriteAttributeString("merged", "by toolbox");
|
||
writer.WriteEndElement();
|
||
|
||
// 写入直播间信息
|
||
recordInfo.WriteTo(writer);
|
||
|
||
// see BililiveRecorder.Core\Danmaku\BasicDanmakuWriter.cs
|
||
const string style = @"<z:stylesheet version=""1.0"" id=""s"" xml:id=""s"" xmlns:z=""http://www.w3.org/1999/XSL/Transform""><z:output method=""html""/><z:template match=""/""><html><meta name=""viewport"" content=""width=device-width""/><title>mikufans录播姬弹幕文件 - <z:value-of select=""/i/BililiveRecorderRecordInfo/@name""/></title><style>body{margin:0}h1,h2,p,table{margin-left:5px}table{border-spacing:0}td,th{border:1px solid grey;padding:1px}th{position:sticky;top:0;background:#4098de}tr:hover{background:#d9f4ff}div{overflow:auto;max-height:80vh;max-width:100vw;width:fit-content}</style><h1><a href=""https://rec.danmuji.org"">mikufans录播姬</a>弹幕XML文件</h1><p>本文件不支持在 IE 浏览器里预览，请使用 Chrome Firefox Edge 等浏览器。</p><p>文件用法参考文档 <a href=""https://rec.danmuji.org/user/danmaku/"">https://rec.danmuji.org/user/danmaku/</a></p><table><tr><td>录播姬版本</td><td><z:value-of select=""/i/BililiveRecorder/@version""/></td></tr><tr><td>房间号</td><td><z:value-of select=""/i/BililiveRecorderRecordInfo/@roomid""/></td></tr><tr><td>主播名</td><td><z:value-of select=""/i/BililiveRecorderRecordInfo/@name""/></td></tr><tr><td>录制开始时间</td><td><z:value-of select=""/i/BililiveRecorderRecordInfo/@start_time""/></td></tr><tr><td><a href=""#d"">弹幕</a></td><td>共<z:value-of select=""count(/i/d)""/>条记录</td></tr><tr><td><a href=""#guard"">上船</a></td><td>共<z:value-of select=""count(/i/guard)""/>条记录</td></tr><tr><td><a href=""#sc"">SC</a></td><td>共<z:value-of select=""count(/i/sc)""/>条记录</td></tr><tr><td><a href=""#gift"">礼物</a></td><td>共<z:value-of select=""count(/i/gift)""/>条记录</td></tr></table><h2 id=""d"">弹幕</h2><div id=""dm""><table><tr><th>用户名</th><th>出现时间</th><th>用户ID</th><th>弹幕</th><th>参数</th></tr><z:for-each select=""/i/d""><tr><td><z:value-of select=""@user""/></td><td></td><td></td><td><z:value-of select="".""/></td><td><z:value-of select=""@p""/></td></tr></z:for-each></table></div><script>Array.from(document.querySelectorAll('#dm tr')).slice(1).map(t=>t.querySelectorAll('td')).forEach(t=>{let p=t[4].textContent.split(','),a=p[0];t[1].textContent=`${(Math.floor(a/60/60)+'').padStart(2,0)}:${(Math.floor(a/60%60)+'').padStart(2,0)}:${(a%60).toFixed(3).padStart(6,0)}`;t[2].innerHTML=`<a target=_blank rel=""nofollow noreferrer"" href=""https://space.bilibili.com/${p[6]}"">${p[6]}</a>`})</script><h2 id=""guard"">舰长购买</h2><div><table><tr><th>用户名</th><th>用户ID</th><th>舰长等级</th><th>购买数量</th><th>出现时间</th></tr><z:for-each select=""/i/guard""><tr><td><z:value-of select=""@user""/></td><td><a rel=""nofollow noreferrer""><z:attribute name=""href""><z:text>https://space.bilibili.com/</z:text><z:value-of select=""@uid"" /></z:attribute><z:value-of select=""@uid""/></a></td><td><z:value-of select=""@level""/></td><td><z:value-of select=""@count""/></td><td><z:value-of select=""@ts""/></td></tr></z:for-each></table></div><h2 id=""sc"">SuperChat 醒目留言</h2><div><table><tr><th>用户名</th><th>用户ID</th><th>内容</th><th>显示时长</th><th>价格</th><th>出现时间</th></tr><z:for-each select=""/i/sc""><tr><td><z:value-of select=""@user""/></td><td><a rel=""nofollow noreferrer""><z:attribute name=""href""><z:text>https://space.bilibili.com/</z:text><z:value-of select=""@uid"" /></z:attribute><z:value-of select=""@uid""/></a></td><td><z:value-of select="".""/></td><td><z:value-of select=""@time""/></td><td><z:value-of select=""@price""/></td><td><z:value-of select=""@ts""/></td></tr></z:for-each></table></div><h2 id=""gift"">礼物</h2><div><table><tr><th>用户名</th><th>用户ID</th><th>礼物名</th><th>礼物数量</th><th>出现时间</th></tr><z:for-each select=""/i/gift""><tr><td><z:value-of select=""@user""/></td><td><a rel=""nofollow noreferrer""><z:attribute name=""href""><z:text>https://space.bilibili.com/</z:text><z:value-of select=""@uid"" /></z:attribute><z:value-of select=""@uid""/></a></td><td><z:value-of select=""@giftname""/></td><td><z:value-of select=""@giftcount""/></td><td><z:value-of select=""@ts""/></td></tr></z:for-each></table></div></html></z:template></z:stylesheet>";
|
||
|
||
writer.WriteStartElement("BililiveRecorderXmlStyle");
|
||
writer.WriteRaw(style);
|
||
writer.WriteEndElement();
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.OutputIOError,
|
||
Exception = ex,
|
||
ErrorMessage = ex.Message
|
||
};
|
||
}
|
||
|
||
try
|
||
{
|
||
var els = new List<(TimeSpan time, XElement el, int reader)>();
|
||
|
||
// 取出所有文件里第一条数据
|
||
for (var i = 0; i < inputLength; i++)
|
||
{
|
||
var r = readers[i]!;
|
||
XElement? el = null;
|
||
|
||
try
|
||
{
|
||
el = ReadDanmakuElement(r);
|
||
}
|
||
catch (Exception readEx)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.InputIOError,
|
||
Exception = readEx,
|
||
ErrorMessage = request.Inputs[i] + ": " + readEx.Message
|
||
};
|
||
}
|
||
|
||
if (el is null)
|
||
{
|
||
readers[i] = null;
|
||
continue;
|
||
}
|
||
var time = UpdateTimestamp(el, timeDiff[i]);
|
||
els.Add((time, el, i));
|
||
}
|
||
|
||
// 排序
|
||
els.Sort((a, b) => a.time.CompareTo(b.time));
|
||
|
||
while (true)
|
||
{
|
||
// 写入时间最小的数据
|
||
|
||
// 所有数据写完就退出循环
|
||
if (els.Count == 0)
|
||
break;
|
||
|
||
(_, var el, var readerIndex) = els[0];
|
||
el.WriteTo(writer);
|
||
els.RemoveAt(0);
|
||
|
||
// 读取一个新的数据
|
||
|
||
var reader = readers[readerIndex];
|
||
// 检查这个文件是否还有更多数据
|
||
if (reader is not null)
|
||
{
|
||
readNextElementFromSameReader:
|
||
|
||
XElement? newEl = null;
|
||
|
||
try
|
||
{
|
||
newEl = ReadDanmakuElement(reader);
|
||
}
|
||
catch (Exception readEx)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.InputIOError,
|
||
Exception = readEx,
|
||
ErrorMessage = request.Inputs[readerIndex] + ": " + readEx.Message
|
||
};
|
||
}
|
||
|
||
if (newEl is null)
|
||
{
|
||
// 文件已结束
|
||
reader.Dispose();
|
||
readers[readerIndex] = null;
|
||
continue;
|
||
}
|
||
else
|
||
{
|
||
// 计算新的时间
|
||
var newTime = UpdateTimestamp(newEl, timeDiff[readerIndex]);
|
||
if (els.Count < 1 || newTime < els[0].time)
|
||
{
|
||
// 如果这是最后一个文件，或当前数据的时间是所有数据里最小的
|
||
// 直接写入输出文件
|
||
newEl.WriteTo(writer);
|
||
goto readNextElementFromSameReader;
|
||
}
|
||
else
|
||
{
|
||
// 如果其他数据比本数据的时间更小
|
||
// 添加到列表中，后面排序再来
|
||
els.Add((newTime, newEl, readerIndex));
|
||
els.Sort((a, b) => a.time.CompareTo(b.time));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
return new CommandResponse<DanmakuMergerResponse>
|
||
{
|
||
Status = ResponseStatus.Error,
|
||
Exception = ex,
|
||
ErrorMessage = ex.Message
|
||
};
|
||
}
|
||
|
||
return new CommandResponse<DanmakuMergerResponse> { Status = ResponseStatus.OK, Data = new DanmakuMergerResponse() };
|
||
}
|
||
finally
|
||
{
|
||
try
|
||
{
|
||
writer?.Dispose();
|
||
outputFile?.Dispose();
|
||
}
|
||
catch (Exception) { }
|
||
|
||
for (var i = 0; i < inputLength; i++)
|
||
{
|
||
try
|
||
{
|
||
readers[i]?.Dispose();
|
||
files[i]?.Dispose();
|
||
}
|
||
catch (Exception) { }
|
||
}
|
||
}
|
||
}
|
||
|
||
private static XElement? ReadDanmakuElement(XmlReader r)
|
||
{
|
||
while (r.Name != "i")
|
||
{
|
||
if (DanmakuElementNames.Contains(r.Name))
|
||
{
|
||
var el = (XNode.ReadFrom(r) as XElement)!;
|
||
return el;
|
||
}
|
||
else
|
||
{
|
||
r.Skip();
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
private static TimeSpan UpdateTimestamp(XElement element, TimeSpan offset)
|
||
{
|
||
switch (element.Name.LocalName)
|
||
{
|
||
case "d":
|
||
{
|
||
var p = element.Attribute("p");
|
||
var i = p.Value.IndexOf(',');
|
||
var t = TimeSpan.FromSeconds(double.Parse(p.Value.Substring(0, i)));
|
||
t += offset;
|
||
p.Value = t.TotalSeconds.ToString("F3") + p.Value.Substring(i);
|
||
return t;
|
||
}
|
||
case "gift":
|
||
case "sc":
|
||
case "guard":
|
||
{
|
||
var ts = TimeSpan.FromSeconds((double)element.Attribute("ts"));
|
||
ts += offset;
|
||
element.SetAttributeValue("ts", ts.TotalSeconds.ToString("F3"));
|
||
return ts;
|
||
}
|
||
default:
|
||
return default;
|
||
}
|
||
}
|
||
}
|
||
}
|