From 091506a79076ae97d0770fcff93ca1f866452689 Mon Sep 17 00:00:00 2001 From: nilaoda Date: Mon, 12 Dec 2022 11:55:46 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=8F=AF=E8=83=BD=E5=AD=98?= =?UTF-8?q?=E5=9C=A8=E7=9A=84=E5=81=B6=E5=8F=91BUG?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../SimpleLiveRecordManager2.cs | 47 +++++++------------ 1 file changed, 16 insertions(+), 31 deletions(-) diff --git a/src/N_m3u8DL-RE/DownloadManager/SimpleLiveRecordManager2.cs b/src/N_m3u8DL-RE/DownloadManager/SimpleLiveRecordManager2.cs index 620c916..7991643 100644 --- a/src/N_m3u8DL-RE/DownloadManager/SimpleLiveRecordManager2.cs +++ b/src/N_m3u8DL-RE/DownloadManager/SimpleLiveRecordManager2.cs @@ -17,6 +17,7 @@ using System.Collections.Concurrent; using System.Diagnostics; using System.IO; using System.IO.Pipes; +using System.Linq; using System.Text; using System.Threading.Tasks; using System.Threading.Tasks.Dataflow; @@ -39,8 +40,9 @@ namespace N_m3u8DL_RE.DownloadManager ConcurrentDictionary RecordingDurDic = new(); //已录制时长 ConcurrentDictionary>> BlockDic = new(); //各流的Block ConcurrentDictionary SamePathDic = new(); //各流是否allSamePath - ConcurrentDictionary LastFileNameDic = new(); //上次下载的文件名 - ConcurrentDictionary DateTimeDic = new(); //上次下载的dateTime + ConcurrentDictionary LastFileNameDic = new(); //上次下载的文件名 + ConcurrentDictionary MaxIndexDic = new(); //最大Index + ConcurrentDictionary DateTimeDic = new(); //上次下载的dateTime CancellationTokenSource CancellationTokenSource = new(); //取消Wait public SimpleLiveRecordManager2(DownloaderConfig downloaderConfig, List selectedSteams, StreamExtractor streamExtractor) @@ -149,26 +151,11 @@ namespace N_m3u8DL_RE.DownloadManager if (mediainfos.All(m => m.Type == "Audio") && streamSpec.MediaType != MediaType.AUDIO) { - var lastKey = streamSpec.ToShortString(); streamSpec.MediaType = MediaType.AUDIO; - var newKey = streamSpec.ToShortString(); - //需要同步修改Dictionary中的Key - if (LastFileNameDic.Remove(lastKey, out var lastValue1)) - LastFileNameDic[newKey] = lastValue1!; - if (DateTimeDic.Remove(lastKey, out var lastValue2)) - DateTimeDic[newKey] = lastValue2; } else if (mediainfos.All(m => m.Type == "Subtitle") && streamSpec.MediaType != MediaType.SUBTITLES) { - var lastKey = streamSpec.ToShortString(); streamSpec.MediaType = MediaType.SUBTITLES; - var newKey = streamSpec.ToShortString(); - - //需要同步修改Dictionary中的Key - if (LastFileNameDic.Remove(lastKey, out var lastValue1)) - LastFileNameDic[newKey] = lastValue1!; - if (DateTimeDic.Remove(lastKey, out var lastValue2)) - DateTimeDic[newKey] = lastValue2; if (streamSpec.Extension == null || streamSpec.Extension == "ts") streamSpec.Extension = "vtt"; @@ -681,7 +668,7 @@ namespace N_m3u8DL_RE.DownloadManager SamePathDic[task.Id] = allSamePath; } //过滤不需要下载的片段 - FilterMediaSegments(streamSpec, allHasDatetime, SamePathDic[task.Id]); + FilterMediaSegments(streamSpec, task, allHasDatetime, SamePathDic[task.Id]); var newList = streamSpec.Playlist!.MediaParts[0].MediaSegments; if (newList.Count > 0) { @@ -689,10 +676,10 @@ namespace N_m3u8DL_RE.DownloadManager //推送给消费者 await BlockDic[task.Id].SendAsync(newList); //更新最新链接 - LastFileNameDic[streamSpec.ToShortString()] = GetSegmentName(newList.Last(), allHasDatetime, SamePathDic[task.Id]); + LastFileNameDic[task.Id] = GetSegmentName(newList.Last(), allHasDatetime, SamePathDic[task.Id]); //尝试更新时间戳 var dt = newList.Last().DateTime; - DateTimeDic[streamSpec.ToShortString()] = dt != null ? GetUnixTimestamp(dt.Value) : 0L; + DateTimeDic[task.Id] = dt != null ? GetUnixTimestamp(dt.Value) : 0L; } }); @@ -721,13 +708,13 @@ namespace N_m3u8DL_RE.DownloadManager } } - private void FilterMediaSegments(StreamSpec streamSpec, bool allHasDatetime, bool allSamePath) + private void FilterMediaSegments(StreamSpec streamSpec, ProgressTask task, bool allHasDatetime, bool allSamePath) { - if (string.IsNullOrEmpty(LastFileNameDic[streamSpec.ToShortString()]) && DateTimeDic[streamSpec.ToShortString()] == 0) return; + if (string.IsNullOrEmpty(LastFileNameDic[task.Id]) && DateTimeDic[task.Id] == 0) return; var index = -1; - var dateTime = DateTimeDic[streamSpec.ToShortString()]; - var lastName = LastFileNameDic[streamSpec.ToShortString()]; + var dateTime = DateTimeDic[task.Id]; + var lastName = LastFileNameDic[task.Id]; //优先使用dateTime判断 if (dateTime != 0 && streamSpec.Playlist!.MediaParts[0].MediaSegments.All(s => s.DateTime != null)) @@ -746,7 +733,7 @@ namespace N_m3u8DL_RE.DownloadManager if (list.Count > 0) { var newMin = list.Min(s => s.Index); - var oldMax = streamSpec.Playlist!.MediaParts[0].MediaSegments.Max(s => s.Index); + var oldMax = MaxIndexDic[task.Id]; if (newMin < oldMax) { var offset = oldMax - newMin + 1; @@ -755,6 +742,7 @@ namespace N_m3u8DL_RE.DownloadManager item.Index += offset; } } + MaxIndexDic[task.Id] = list.Max(s => s.Index); } streamSpec.Playlist!.MediaParts[0].MediaSegments = list; } @@ -774,12 +762,6 @@ namespace N_m3u8DL_RE.DownloadManager part.MediaSegments = part.MediaSegments.Where(s => s.Index <= maxIndex).TakeLast(takeLastCount).ToList(); } } - //初始化dic - foreach (var item in SelectedSteams) - { - LastFileNameDic[item.ToShortString()] = ""; - DateTimeDic[item.ToShortString()] = 0L; - } //设置等待时间 if (WAIT_SEC == 0) { @@ -819,7 +801,10 @@ namespace N_m3u8DL_RE.DownloadManager { var task = ctx.AddTask(item.ToShortString(), autoStart: false, maxValue: 0); SpeedContainerDic[task.Id] = new SpeedContainer(); //速度计算 + LastFileNameDic[task.Id] = ""; + DateTimeDic[task.Id] = 0L; RecordingDurDic[task.Id] = 0; + MaxIndexDic[task.Id] = item.Playlist?.MediaParts[0].MediaSegments.Max(s => s.Index) ?? 0L; //最大Index BlockDic[task.Id] = new BufferBlock>(); return (item, task); }).ToDictionary(item => item.item, item => item.task);