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226 lines
9.5 KiB
C#
226 lines
9.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using static BBDown.Core.Entity.Entity;
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using static BBDown.BBDownUtil;
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using static BBDown.Core.Util.SubUtil;
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using static BBDown.Core.Logger;
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using System.IO;
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using BBDown.Core;
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using System.Runtime.InteropServices;
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namespace BBDown;
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static partial class BBDownMuxer
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{
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public static string FFMPEG = "ffmpeg";
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public static string MP4BOX = "mp4box";
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private static int RunExe(string app, string parms, bool customBin = false)
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{
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int code = 0;
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Process p = new();
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p.StartInfo.FileName = app;
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p.StartInfo.Arguments = parms;
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p.StartInfo.UseShellExecute = false;
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p.StartInfo.RedirectStandardError = true;
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p.StartInfo.CreateNoWindow = false;
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p.ErrorDataReceived += delegate (object sendProcess, DataReceivedEventArgs output) {
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if (!string.IsNullOrWhiteSpace(output.Data))
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Log(output.Data);
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};
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p.StartInfo.StandardErrorEncoding = Encoding.UTF8;
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p.Start();
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p.BeginErrorReadLine();
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p.WaitForExit();
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p.Close();
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p.Dispose();
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return code;
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}
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private static string EscapeString(string str)
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{
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return string.IsNullOrEmpty(str) ? str : str.Replace("\"", "'").Replace("\\", "\\\\");
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}
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private static int MuxByMp4box(string url, string videoPath, string audioPath, string outPath, string desc, string title, string author, string episodeId, string pic, string lang, List<Subtitle>? subs, bool audioOnly, bool videoOnly, List<ViewPoint>? points)
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{
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StringBuilder inputArg = new();
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StringBuilder metaArg = new();
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int nowId = 0;
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inputArg.Append(" -inter 500 -noprog ");
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if (!string.IsNullOrEmpty(videoPath))
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{
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inputArg.Append($" -add \"{videoPath}#trackID={(audioOnly && audioPath == "" ? "2" : "1")}:name=\" ");
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nowId++;
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}
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if (!string.IsNullOrEmpty(audioPath))
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{
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inputArg.Append($" -add \"{audioPath}:lang={(lang == "" ? "und" : lang)}\" ");
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nowId++;
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}
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if (points != null && points.Any())
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{
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var meta = GetMp4boxMetaString(points);
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var metaFile = Path.Combine(Path.GetDirectoryName(string.IsNullOrEmpty(videoPath) ? audioPath : videoPath)!, "chapters");
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File.WriteAllText(metaFile, meta);
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inputArg.Append($" -chap \"{metaFile}\" ");
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}
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if (!string.IsNullOrEmpty(pic))
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metaArg.Append($":cover=\"{pic}\"");
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if (!string.IsNullOrEmpty(episodeId))
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metaArg.Append($":album=\"{title}\":title=\"{episodeId}\"");
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else
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metaArg.Append($":title=\"{title}\"");
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metaArg.Append($":sdesc=\"{desc}\"");
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metaArg.Append($":comment=\"{url}\"");
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metaArg.Append($":artist=\"{author}\"");
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if (subs != null)
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{
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for (int i = 0; i < subs.Count; i++)
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{
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if (File.Exists(subs[i].path) && File.ReadAllText(subs[i].path!) != "")
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{
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nowId++;
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inputArg.Append($" -add \"{subs[i].path}#trackID=1:name=:hdlr=sbtl:lang={GetSubtitleCode(subs[i].lan).Item1}\" ");
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inputArg.Append($" -udta {nowId}:type=name:str=\"{GetSubtitleCode(subs[i].lan).Item2}\" ");
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}
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}
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}
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//----分析完毕
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var arguments = (Config.DEBUG_LOG ? " -v " : "") + inputArg + (metaArg.ToString() == "" ? "" : " -itags tool=" + metaArg) + $" -new -- \"{outPath}\"";
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LogDebug("mp4box命令: {0}", arguments);
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return RunExe(MP4BOX, arguments, MP4BOX != "mp4box");
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}
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public static int MuxAV(bool useMp4box, string bvid, string videoPath, string audioPath, List<AudioMaterial> audioMaterial, string outPath, string desc = "", string title = "", string author = "", string episodeId = "", string pic = "", string lang = "", List<Subtitle>? subs = null, bool audioOnly = false, bool videoOnly = false, List<ViewPoint>? points = null, long pubTime = 0, bool simplyMux = false, bool isHevc = false)
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{
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if (audioOnly && audioPath != "")
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videoPath = "";
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if (videoOnly)
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audioPath = "";
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desc = EscapeString(desc);
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title = EscapeString(title);
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episodeId = EscapeString(episodeId);
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var url = $"https://www.bilibili.com/video/{bvid}/";
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if (useMp4box)
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{
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return MuxByMp4box(url, videoPath, audioPath, outPath, desc, title, author, episodeId, pic, lang, subs, audioOnly, videoOnly, points);
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}
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if (outPath.Contains('/') && ! Directory.Exists(Path.GetDirectoryName(outPath)))
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Directory.CreateDirectory(Path.GetDirectoryName(outPath)!);
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//----分析并生成-i参数
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StringBuilder inputArg = new();
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StringBuilder metaArg = new();
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byte inputCount = 0;
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foreach (string path in new[] { videoPath, audioPath })
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{
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if (!string.IsNullOrEmpty(path))
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{
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inputCount++;
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inputArg.Append($"-i \"{path}\" ");
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}
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}
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if (audioMaterial.Any())
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{
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byte audioCount = 0;
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metaArg.Append("-metadata:s:a:0 title=\"原音频\" ");
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foreach (var audio in audioMaterial)
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{
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inputCount++;
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audioCount++;
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inputArg.Append($"-i \"{audio.path}\" ");
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if (!string.IsNullOrWhiteSpace(audio.title)) metaArg.Append($"-metadata:s:a:{audioCount} title=\"{audio.title}\" ");
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if (!string.IsNullOrWhiteSpace(audio.personName)) metaArg.Append($"-metadata:s:a:{audioCount} artist=\"{audio.personName}\" ");
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}
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}
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if (!string.IsNullOrEmpty(pic))
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{
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inputCount++;
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inputArg.Append($"-i \"{pic}\" ");
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}
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if (subs != null)
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{
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for (int i = 0; i < subs.Count; i++)
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{
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if(File.Exists(subs[i].path) && File.ReadAllText(subs[i].path!) != "")
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{
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inputCount++;
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inputArg.Append($"-i \"{subs[i].path}\" ");
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metaArg.Append($"-metadata:s:s:{i} title=\"{GetSubtitleCode(subs[i].lan).Item2}\" -metadata:s:s:{i} language={GetSubtitleCode(subs[i].lan).Item1} ");
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}
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}
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}
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if (!string.IsNullOrEmpty(pic))
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metaArg.Append($"-disposition:v:{(audioOnly ? "0" : "1")} attached_pic ");
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// var inputCount = InputRegex().Matches(inputArg.ToString()).Count;
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if (points != null && points.Any())
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{
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var meta = GetFFmpegMetaString(points);
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var metaFile = Path.Combine(Path.GetDirectoryName(string.IsNullOrEmpty(videoPath) ? audioPath : videoPath)!, "chapters");
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File.WriteAllText(metaFile, meta);
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inputArg.Append($"-i \"{metaFile}\" -map_chapters {inputCount} ");
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}
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inputArg.Append(string.Concat(Enumerable.Range(0, inputCount).Select(i => $"-map {i} ")));
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//----分析完毕
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StringBuilder argsBuilder = new StringBuilder();
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argsBuilder.Append($"-loglevel {(Config.DEBUG_LOG ? "verbose" : "warning")} -y ");
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argsBuilder.Append(inputArg);
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argsBuilder.Append(metaArg);
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if (!simplyMux) {
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argsBuilder.Append($"-metadata title=\"{(episodeId == "" ? title : episodeId)}\" ");
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argsBuilder.Append($"-metadata comment=\"{url}\" ");
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if (lang != "") argsBuilder.Append($"-metadata:s:a:0 language={lang} ");
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if (!string.IsNullOrWhiteSpace(desc)) argsBuilder.Append($"-metadata description=\"{desc}\" ");
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if (!string.IsNullOrEmpty(author)) argsBuilder.Append($"-metadata artist=\"{author}\" ");
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if (episodeId != "") argsBuilder.Append($"-metadata album=\"{title}\" ");
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if (pubTime != 0) argsBuilder.Append($"-metadata creation_time=\"{(DateTimeOffset.FromUnixTimeSeconds(pubTime).ToString("yyyy-MM-ddTHH:mm:ss.ffffffZ"))}\" ");
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}
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argsBuilder.Append("-c:v copy -c:a copy ");
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if (audioOnly && audioPath == "") argsBuilder.Append("-vn ");
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if (subs != null) argsBuilder.Append("-c:s mov_text ");
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// fix macOS hev1, see https://discussions.apple.com/thread/253081863?sortBy=rank
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if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX) && isHevc) argsBuilder.Append("-tag:v:0 hvc1 ");
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argsBuilder.Append($"-movflags faststart -strict unofficial -strict -2 -f mp4 -- \"{outPath}\"");
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string arguments = argsBuilder.ToString();
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LogDebug("ffmpeg命令: {0}", arguments);
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return RunExe(FFMPEG, arguments, FFMPEG != "ffmpeg");
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}
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public static void MergeFLV(string[] files, string outPath)
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{
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if (files.Length == 1)
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{
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File.Move(files[0], outPath);
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}
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else
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{
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foreach (var file in files)
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{
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var tmpFile = Path.Combine(Path.GetDirectoryName(file)!, Path.GetFileNameWithoutExtension(file) + ".ts");
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var arguments = $"-loglevel warning -y -i \"{file}\" -map 0 -c copy -f mpegts -bsf:v h264_mp4toannexb \"{tmpFile}\"";
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LogDebug("ffmpeg命令: {0}", arguments);
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RunExe("ffmpeg", arguments);
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File.Delete(file);
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}
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var f = GetFiles(Path.GetDirectoryName(files[0])!, ".ts");
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CombineMultipleFilesIntoSingleFile(f, outPath);
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foreach (var s in f) File.Delete(s);
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}
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}
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} |