支持 ffmpeg concat 分离器 #254

src/N_m3u8DL-RE.Common/Resource/ResString.cs

@@ -28,6 +28,7 @@ public class ResString
         public static string cmd_appendUrlParams { get => GetText("cmd_appendUrlParams"); }
         public static string cmd_autoSelect { get => GetText("cmd_autoSelect"); }
         public static string cmd_binaryMerge { get => GetText("cmd_binaryMerge"); }
+        public static string cmd_useFFmpegConcatDemuxer { get => GetText("cmd_useFFmpegConcatDemuxer"); }
         public static string cmd_checkSegmentsCount { get => GetText("cmd_checkSegmentsCount"); }
         public static string cmd_decryptionBinaryPath { get => GetText("cmd_decryptionBinaryPath"); }
         public static string cmd_delAfterDone { get => GetText("cmd_delAfterDone"); }

src/N_m3u8DL-RE.Common/Resource/StaticText.cs

@@ -172,6 +172,12 @@ internal class StaticText
                 zhTW: "二進位制合併",
                 enUS: "Binary merge"
             ),
+            ["cmd_useFFmpegConcatDemuxer"] = new TextContainer
+            (
+                zhCN: "使用 ffmpeg 合并时，使用 concat 分离器而非 concat 协议",
+                zhTW: "使用 ffmpeg 合併時，使用 concat 分離器而非 concat 協議",
+                enUS: "When merging with ffmpeg, use the concat demuxer instead of the concat protocol"
+            ),
             ["cmd_checkSegmentsCount"] = new TextContainer
             (
                 zhCN: "检测实际下载的分片数量和预期数量是否匹配",

src/N_m3u8DL-RE/CommandLine/CommandInvoker.cs

@@ -18,7 +18,7 @@ namespace N_m3u8DL_RE.CommandLine
 {
     internal partial class CommandInvoker
     {
-        public const string VERSION_INFO = "N_m3u8DL-RE (Beta version) 20230730";
+        public const string VERSION_INFO = "N_m3u8DL-RE (Beta version) 20230820";
 
         [GeneratedRegex("((best|worst)\\d*|all)")]
         private static partial Regex ForStrRegex();
@@ -45,6 +45,7 @@ internal partial class CommandInvoker
         private readonly static Option<bool> SkipDownload = new(new string[] { "--skip-download" }, description: ResString.cmd_skipDownload, getDefaultValue: () => false);
         private readonly static Option<bool> NoDateInfo = new(new string[] { "--no-date-info" }, description: ResString.cmd_noDateInfo, getDefaultValue: () => false);
         private readonly static Option<bool> BinaryMerge = new(new string[] { "--binary-merge" }, description: ResString.cmd_binaryMerge, getDefaultValue: () => false);
+        private readonly static Option<bool> UseFFmpegConcatDemuxer = new(new string[] { "--use-ffmpeg-concat-demuxer" }, description: ResString.cmd_useFFmpegConcatDemuxer, getDefaultValue: () => false);
         private readonly static Option<bool> DelAfterDone = new(new string[] { "--del-after-done" }, description: ResString.cmd_delAfterDone, getDefaultValue: () => true);
         private readonly static Option<bool> AutoSubtitleFix = new(new string[] { "--auto-subtitle-fix" }, description: ResString.cmd_subtitleFix, getDefaultValue: () => true);
         private readonly static Option<bool> CheckSegmentsCount = new(new string[] { "--check-segments-count" }, description: ResString.cmd_checkSegmentsCount, getDefaultValue: () => true);
@@ -483,6 +484,7 @@ protected override MyOption GetBoundValue(BindingContext bindingContext)
                     AutoSelect = bindingContext.ParseResult.GetValueForOption(AutoSelect),
                     SkipMerge = bindingContext.ParseResult.GetValueForOption(SkipMerge),
                     BinaryMerge = bindingContext.ParseResult.GetValueForOption(BinaryMerge),
+                    UseFFmpegConcatDemuxer = bindingContext.ParseResult.GetValueForOption(UseFFmpegConcatDemuxer),
                     DelAfterDone = bindingContext.ParseResult.GetValueForOption(DelAfterDone),
                     AutoSubtitleFix = bindingContext.ParseResult.GetValueForOption(AutoSubtitleFix),
                     CheckSegmentsCount = bindingContext.ParseResult.GetValueForOption(CheckSegmentsCount),
@@ -589,7 +591,7 @@ public static async Task<int> InvokeArgs(string[] args, Func<MyOption, Task> act
             var rootCommand = new RootCommand(VERSION_INFO)
             {
                 Input, TmpDir, SaveDir, SaveName, BaseUrl, ThreadCount, DownloadRetryCount, AutoSelect, SkipMerge, SkipDownload, CheckSegmentsCount,
-                BinaryMerge, DelAfterDone, NoDateInfo, NoLog, WriteMetaJson, AppendUrlParams, ConcurrentDownload, Headers, /**SavePattern,**/ SubOnly, SubtitleFormat, AutoSubtitleFix,
+                BinaryMerge, UseFFmpegConcatDemuxer, DelAfterDone, NoDateInfo, NoLog, WriteMetaJson, AppendUrlParams, ConcurrentDownload, Headers, /**SavePattern,**/ SubOnly, SubtitleFormat, AutoSubtitleFix,
                 FFmpegBinaryPath,
                 LogLevel, UILanguage, UrlProcessorArgs, Keys, KeyTextFile, DecryptionBinaryPath, UseShakaPackager, MP4RealTimeDecryption,
                 MaxSpeed,

src/N_m3u8DL-RE/CommandLine/MyOption.cs

@@ -85,6 +85,10 @@ internal class MyOption
         /// </summary>
         public bool BinaryMerge { get; set; }
         /// <summary>
+        /// See: <see cref="CommandInvoker.UseFFmpegConcatDemuxer"/>.
+        /// </summary>
+        public bool UseFFmpegConcatDemuxer { get; set; }
+        /// <summary>
         /// See: <see cref="CommandInvoker.DelAfterDone"/>.
         /// </summary>
         public bool DelAfterDone { get; set; }

src/N_m3u8DL-RE/DownloadManager/SimpleDownloadManager.cs

@@ -557,7 +557,7 @@ await Parallel.ForEachAsync(segments, options, async (seg, _) =>
                             };
                         }
                     }
-                    mergeSuccess = MergeUtil.MergeByFFmpeg(DownloaderConfig.MyOptions.FFmpegBinaryPath!, files, Path.ChangeExtension(ffOut, null), ext, useAACFilter, writeDate: !DownloaderConfig.MyOptions.NoDateInfo);
+                    mergeSuccess = MergeUtil.MergeByFFmpeg(DownloaderConfig.MyOptions.FFmpegBinaryPath!, files, Path.ChangeExtension(ffOut, null), ext, useAACFilter, writeDate: !DownloaderConfig.MyOptions.NoDateInfo, useConcatDemuxer: DownloaderConfig.MyOptions.UseFFmpegConcatDemuxer);
                     if (mergeSuccess) output = ffOut;
                 }
             }

src/N_m3u8DL-RE/Util/MergeUtil.cs

@@ -110,24 +110,37 @@ public static string[] PartialCombineMultipleFiles(string[] files)
 
         public static bool MergeByFFmpeg(string binary, string[] files, string outputPath, string muxFormat, bool useAACFilter,
             bool fastStart = false,
-            bool writeDate = true, string poster = "", string audioName = "", string title = "",
+            bool writeDate = true, bool useConcatDemuxer = false, string poster = "", string audioName = "", string title = "",
             string copyright = "", string comment = "", string encodingTool = "", string recTime = "")
         {
             //改为绝对路径
             outputPath = Path.GetFullPath(outputPath);
 
             string dateString = string.IsNullOrEmpty(recTime) ? DateTime.Now.ToString("o") : recTime;
 
-            StringBuilder command = new StringBuilder("-loglevel warning -nostdin -i concat:\"");
+            StringBuilder command = new StringBuilder("-loglevel warning -nostdin ");
             string ddpAudio = string.Empty;
             string addPoster = "-map 1 -c:v:1 copy -disposition:v:1 attached_pic";
             ddpAudio = (File.Exists($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") ? File.ReadAllText($"{Path.GetFileNameWithoutExtension(outputPath + ".mp4")}.txt") : "");
             if (!string.IsNullOrEmpty(ddpAudio)) useAACFilter = false;
 
-            foreach (string t in files)
+            if (useConcatDemuxer)
             {
-                command.Append(Path.GetFileName(t) + "|");
+                // 使用 concat demuxer合并
+                var text = string.Join(Environment.NewLine, files.Select(f => $"file '{f}'"));
+                var tempFile = Path.GetTempFileName();
+                File.WriteAllText(tempFile, text);
+                command.Append($" -f concat -safe 0 -i \"{tempFile}");
             }
+            else
+            {
+                command.Append(" -i concat:\"");
+                foreach (string t in files)
+                {
+                    command.Append(Path.GetFileName(t) + "|");
+                }
+            }
+
 
             switch (muxFormat.ToUpper())
             {