基本完成MPD解析
This commit is contained in:
nilaoda
parent
6828d11952
commit
eb6421ce72
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@ -31,5 +31,14 @@ namespace N_m3u8DL_RE.Common.Config
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/// </summary>
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public byte[]? CustomeIV { get; set; }
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/// <summary>
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/// 组装视频分段的URL时，是否要把原本URL后的参数也加上去
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/// 如 Base URL = "http://xxx.com/playlist.m3u8?hmac=xxx&token=xxx"
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/// 相对路径 = clip_01.ts
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/// 如果 AppendUrlParams=false，得 http://xxx.com/clip_01.ts
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/// 如果 AppendUrlParams=true，得 http://xxx.com/clip_01.ts?hmac=xxx&token=xxx
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/// </summary>
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public bool AppendUrlParams { get; set; } = false;
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}
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}
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@ -12,7 +12,7 @@ namespace N_m3u8DL_RE.Common.Entity
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//对应Url信息
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public string Url { get; set; }
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//是否直播
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public bool IsLive { get; set; }
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public bool IsLive { get; set; } = false;
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//INIT信息
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public MediaSegment? MediaInit { get; set; }
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//分片信息
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@ -35,6 +35,8 @@ namespace N_m3u8DL_RE.Common.Entity
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public override string ToString()
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{
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var prefixStr = "";
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var returnStr = "";
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var encStr = string.Empty;
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//增加加密标志
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@ -45,19 +47,30 @@ namespace N_m3u8DL_RE.Common.Entity
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if (MediaType == Enum.MediaType.AUDIO)
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{
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var d = $"{GroupId} | {Name} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}".Replace("| |", "|");
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return $"[deepskyblue3]Aud[/] {encStr}" + d.EscapeMarkup().Trim().Trim('|').Trim();
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prefixStr = $"[deepskyblue3]Aud[/] {encStr}";
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var d = $"{GroupId} | {(Bandwidth != null ? (Bandwidth / 1000) + " Kbps" : "")} | {Name} | {Language} | {(Channels != null ? Channels + "CH" : "")} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}";
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returnStr = d.EscapeMarkup();
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}
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else if (MediaType == Enum.MediaType.SUBTITLES)
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{
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var d = $"{GroupId} | {Language} | {Name} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}".Replace("| |", "|");
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return $"[deepskyblue3_1]Sub[/] {encStr}" + d.EscapeMarkup().Trim().Trim('|').Trim();
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prefixStr = $"[deepskyblue3_1]Sub[/] {encStr}";
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var d = $"{GroupId} | {Language} | {Name} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}";
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returnStr = d.EscapeMarkup();
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}
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else
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{
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var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {FrameRate} | {Codecs} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}".Replace("| |", "|");
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return $"[aqua]Vid[/] {encStr}" + d.EscapeMarkup().Trim().Trim('|').Trim();
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prefixStr = $"[aqua]Vid[/] {encStr}";
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var d = $"{Resolution} | {Bandwidth / 1000} Kbps | {Name} | {FrameRate} | {Codecs} | {(Playlist != null ? Playlist.MediaParts.Sum(x => x.MediaSegments.Count) + " Segments" : "")}";
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returnStr = d.EscapeMarkup();
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}
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returnStr = prefixStr + returnStr.Trim().Trim('|').Trim();
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while (returnStr.Contains("| |"))
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{
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returnStr = returnStr.Replace("| |", "|");
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}
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return returnStr;
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}
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}
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}
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@ -69,6 +69,15 @@ namespace N_m3u8DL_RE.Common.Resource {
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}
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}
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/// <summary>
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/// 查找类似 验证最后一个分片有效性 的本地化字符串。
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/// </summary>
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public static string checkingLast {
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get {
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return ResourceManager.GetString("checkingLast", resourceCulture);
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}
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}
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/// <summary>
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/// 查找类似 获取: 的本地化字符串。
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/// </summary>
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@ -105,6 +114,15 @@ namespace N_m3u8DL_RE.Common.Resource {
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}
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}
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/// <summary>
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/// 查找类似 内容匹配: [white on mediumorchid1]Dynamic Adaptive Streaming over HTTP[/] 的本地化字符串。
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/// </summary>
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public static string matchDASH {
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get {
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return ResourceManager.GetString("matchDASH", resourceCulture);
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}
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}
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/// <summary>
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/// 查找类似 内容匹配: [white on deepskyblue1]HTTP Live Streaming[/] 的本地化字符串。
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/// </summary>
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@ -123,6 +141,15 @@ namespace N_m3u8DL_RE.Common.Resource {
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}
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}
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/// <summary>
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/// 查找类似 正在解析媒体信息... 的本地化字符串。
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/// </summary>
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public static string parsingStream {
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get {
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return ResourceManager.GetString("parsingStream", resourceCulture);
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}
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}
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/// <summary>
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/// 查找类似 [grey](按键盘上下键以浏览更多内容)[/] 的本地化字符串。
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/// </summary>
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@ -136,4 +136,13 @@
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<data name="writeJson" xml:space="preserve">
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<value>Writing meta.json</value>
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</data>
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<data name="matchDASH" xml:space="preserve">
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<value>Content Matched: [white on mediumorchid1]Dynamic Adaptive Streaming over HTTP[/]</value>
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</data>
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<data name="checkingLast" xml:space="preserve">
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<value>Verifying the validity of the last segment</value>
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</data>
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<data name="parsingStream" xml:space="preserve">
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<value>Parsing streams...</value>
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</data>
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</root>
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@ -136,4 +136,13 @@
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<data name="writeJson" xml:space="preserve">
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<value>写出meta.json</value>
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</data>
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<data name="matchDASH" xml:space="preserve">
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<value>内容匹配: [white on mediumorchid1]Dynamic Adaptive Streaming over HTTP[/]</value>
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</data>
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<data name="checkingLast" xml:space="preserve">
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<value>验证最后一个分片有效性</value>
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</data>
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<data name="parsingStream" xml:space="preserve">
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<value>正在解析媒体信息...</value>
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</data>
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</root>
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@ -136,4 +136,13 @@
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<data name="writeJson" xml:space="preserve">
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<value>寫出meta.json</value>
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</data>
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<data name="matchDASH" xml:space="preserve">
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<value>內容匹配: [white on mediumorchid1]Dynamic Adaptive Streaming over HTTP[/]</value>
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</data>
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<data name="checkingLast" xml:space="preserve">
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<value>驗證最後一個分片有效性</value>
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</data>
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<data name="parsingStream" xml:space="preserve">
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<value>正在解析媒體信息...</value>
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</data>
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</root>
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@ -34,7 +34,7 @@ namespace N_m3u8DL_RE.Common.Util
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Timeout = TimeSpan.FromMinutes(2)
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};
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public static async Task<HttpResponseMessage> DoGetAsync(string url, Dictionary<string, string>? headers = null)
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private static async Task<HttpResponseMessage> DoGetAsync(string url, Dictionary<string, string>? headers = null)
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{
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Logger.Debug(ResString.fetch + url);
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using var webRequest = new HttpRequestMessage(HttpMethod.Get, url);
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@ -0,0 +1,740 @@
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using N_m3u8DL_RE.Common.Config;
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using N_m3u8DL_RE.Common.Entity;
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using N_m3u8DL_RE.Common.Enum;
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using N_m3u8DL_RE.Common.Log;
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using N_m3u8DL_RE.Common.Resource;
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using N_m3u8DL_RE.Common.Util;
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using N_m3u8DL_RE.Parser.Util;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Text.Json.Nodes;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using System.Xml;
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namespace N_m3u8DL_RE.Parser.Extractor
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{
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//code from https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/extractor/common.py#L2076
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internal class DASHExtractor : IExtractor
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{
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private string MpdUrl = string.Empty;
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private string BaseUrl = string.Empty;
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private string MpdContent = string.Empty;
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public ParserConfig ParserConfig { get; set; }
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public DASHExtractor(ParserConfig parserConfig)
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{
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this.ParserConfig = parserConfig;
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this.MpdUrl = parserConfig.Url ?? string.Empty;
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if (!string.IsNullOrEmpty(parserConfig.BaseUrl))
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this.BaseUrl = parserConfig.BaseUrl;
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else
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this.BaseUrl = this.MpdUrl;
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}
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public async Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
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{
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this.MpdContent = rawText;
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this.PreProcessContent();
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XmlDocument mpdDoc = new XmlDocument();
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mpdDoc.LoadXml(MpdContent);
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XmlNode xn = null;
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//Select MPD node
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foreach (XmlNode node in mpdDoc.ChildNodes)
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{
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if (node.NodeType == XmlNodeType.Element && node.Name == "MPD")
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{
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xn = node;
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break;
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}
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}
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var mediaPresentationDuration = ((XmlElement)xn).GetAttribute("mediaPresentationDuration");
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var ns = ((XmlElement)xn).GetAttribute("xmlns");
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XmlNamespaceManager nsMgr = new XmlNamespaceManager(mpdDoc.NameTable);
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nsMgr.AddNamespace("ns", ns);
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TimeSpan ts = XmlConvert.ToTimeSpan(mediaPresentationDuration); //时长
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//读取在MPD开头定义的<BaseURL>，并替换本身的URL
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var baseNode = xn.SelectSingleNode("ns:BaseURL", nsMgr);
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if (baseNode != null)
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{
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if (MpdUrl.Contains("kkbox.com.tw/"))
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{
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var badUrl = baseNode.InnerText;
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var goodUrl = badUrl.Replace("//https:%2F%2F", "//");
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BaseUrl = goodUrl;
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}
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else
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{
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BaseUrl = baseNode.InnerText;
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}
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}
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var formatList = new List<JsonObject>(); //存放所有音视频清晰度
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var periodIndex = 0; //解决同一个period且同id导致被重复添加分片
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foreach (XmlElement period in xn.SelectNodes("ns:Period", nsMgr))
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{
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periodIndex++;
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var periodDuration = string.IsNullOrEmpty(period.GetAttribute("duration")) ? XmlConvert.ToTimeSpan(mediaPresentationDuration) : XmlConvert.ToTimeSpan(period.GetAttribute("duration"));
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var periodMsInfo = ExtractMultisegmentInfo(period, nsMgr, new JsonObject()
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{
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["StartNumber"] = 1,
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["Timescale"] = 1
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});
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foreach (XmlElement adaptationSet in period.SelectNodes("ns:AdaptationSet", nsMgr))
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{
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var adaptionSetMsInfo = ExtractMultisegmentInfo(adaptationSet, nsMgr, periodMsInfo);
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foreach (XmlElement representation in adaptationSet.SelectNodes("ns:Representation", nsMgr))
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{
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string GetAttribute(string key)
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{
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var v1 = representation.GetAttribute(key);
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if (string.IsNullOrEmpty(v1))
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return adaptationSet.GetAttribute(key);
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return v1;
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}
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var mimeType = GetAttribute("mimeType");
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var contentType = mimeType.Split('/')[0];
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if (contentType == "video" || contentType == "audio" || contentType == "text")
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{
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var baseUrl = "";
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bool CheckBaseUrl()
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{
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return Regex.IsMatch(baseUrl, @"^https?://");
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}
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var list = new List<XmlNodeList>()
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{
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representation.ChildNodes,
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adaptationSet.ChildNodes,
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period.ChildNodes,
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mpdDoc.ChildNodes
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};
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foreach (XmlNodeList xmlNodeList in list)
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{
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foreach (XmlNode node in xmlNodeList)
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{
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if (node.Name == "BaseURL")
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{
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baseUrl = node.InnerText + baseUrl;
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if (CheckBaseUrl()) break;
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}
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}
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if (CheckBaseUrl()) break;
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}
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string GetBaseUrl(string url)
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{
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if (url.Contains("?"))
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url = url.Remove(url.LastIndexOf('?'));
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url = url.Substring(0, url.LastIndexOf('/') + 1);
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return url;
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}
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var mpdBaseUrl = string.IsNullOrEmpty(BaseUrl) ? GetBaseUrl(MpdUrl) : BaseUrl;
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if (!string.IsNullOrEmpty(mpdBaseUrl) && !CheckBaseUrl())
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{
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if (!mpdBaseUrl.EndsWith("/") && !baseUrl.StartsWith("/"))
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{
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mpdBaseUrl += "/";
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}
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baseUrl = ParserUtil.CombineURL(mpdBaseUrl, baseUrl);
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}
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var representationId = GetAttribute("id");
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var lang = GetAttribute("lang");
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var bandwidth = IntOrNull(GetAttribute("bandwidth"));
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var frameRate = GetAttribute("frameRate");
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if (frameRate.Contains("/"))
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{
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var d = Convert.ToDouble(frameRate.Split('/')[0]) / Convert.ToDouble(frameRate.Split('/')[1]);
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frameRate = d.ToString("0.000");
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}
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var f = new JsonObject()
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{
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["PeriodIndex"] = periodIndex,
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["ContentType"] = contentType,
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["FormatId"] = representationId,
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["ManifestUrl"] = MpdUrl,
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["Width"] = IntOrNull(GetAttribute("width")),
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["Height"] = IntOrNull(GetAttribute("height")),
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["Tbr"] = (int)DoubleOrNull(bandwidth),
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["Asr"] = IntOrNull(GetAttribute("audioSamplingRate")),
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["Fps"] = DoubleOrNull(frameRate),
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["Language"] = lang,
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["Codecs"] = GetAttribute("codecs")
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};
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var representationMsInfo = ExtractMultisegmentInfo(representation, nsMgr, adaptionSetMsInfo);
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string PrepareTemplate(string templateName, string[] identifiers)
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{
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var tmpl = representationMsInfo?[templateName]?.GetValue<string>();
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var t = new StringBuilder();
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var inTemplate = false;
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foreach (var ch in tmpl)
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{
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t.Append(ch);
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if (ch == '$')
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{
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inTemplate = !inTemplate;
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}
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else if (ch == '%' && !inTemplate)
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{
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t.Append(ch);
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}
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}
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var str = t.ToString();
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str = str.Replace("$RepresentationID$", representationId);
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str = Regex.Replace(str, "\\$(" + string.Join("|", identifiers) + ")\\$", "{{$1}}");
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str = Regex.Replace(str, "\\$(" + string.Join("|", identifiers) + ")%([^$]+)d\\$", "{{$1}}{0:D$2}");
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str = str.Replace("$$", "$");
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return str;
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}
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string PadNumber(string template, string key, long value)
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{
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string ReplaceFirst(string text, string search, string replace)
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{
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int pos = text.IndexOf(search);
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if (pos < 0)
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{
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return text;
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}
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return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
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}
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template = template.Replace("{{" + key + "}}", "");
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var m = Regex.Match(template, "{0:D(\\d+)}");
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return ReplaceFirst(template, m.Value, value.ToString("0".PadRight(Convert.ToInt32(m.Groups[1].Value), '0')));
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}
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if (representationMsInfo.ContainsKey("Initialization"))
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{
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var initializationTemplate = PrepareTemplate("Initialization", new string[] { "Bandwidth" });
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var initializationUrl = "";
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if (initializationTemplate.Contains("{0:D"))
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{
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if (initializationTemplate.Contains("{{Bandwidth}}"))
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initializationUrl = PadNumber(initializationTemplate, "Bandwidth", bandwidth);
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}
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else
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{
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initializationUrl = initializationTemplate.Replace("{{Bandwidth}}", bandwidth.ToString());
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}
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representationMsInfo["InitializationUrl"] = ParserUtil.CombineURL(baseUrl, initializationUrl);
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}
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string LocationKey(string location)
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{
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return Regex.IsMatch(location, "^https?://") ? "url" : "path";
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}
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if (!representationMsInfo.ContainsKey("SegmentUrls") && representationMsInfo.ContainsKey("Media"))
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{
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var mediaTemplate = PrepareTemplate("Media", new string[] { "Number", "Bandwidth", "Time" });
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var mediaLocationKey = LocationKey(mediaTemplate);
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if (mediaTemplate.Contains("{{Number") && !representationMsInfo.ContainsKey("S"))
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{
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var segmentDuration = 0.0;
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if (!representationMsInfo.ContainsKey("TotalNumber") && representationMsInfo.ContainsKey("SegmentDuration"))
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{
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segmentDuration = DoubleOrNull(representationMsInfo["SegmentDuration"].GetValue<double>(), representationMsInfo["Timescale"].GetValue<int>());
|
||||
representationMsInfo["TotalNumber"] = (int)Math.Ceiling(periodDuration.TotalSeconds / segmentDuration);
|
||||
}
|
||||
var fragments = new JsonArray();
|
||||
for (int i = representationMsInfo["StartNumber"].GetValue<int>(); i < representationMsInfo["StartNumber"].GetValue<int>() + representationMsInfo["TotalNumber"].GetValue<int>(); i++)
|
||||
{
|
||||
var segUrl = "";
|
||||
if (mediaTemplate.Contains("{0:D"))
|
||||
{
|
||||
if (mediaTemplate.Contains("{{Bandwidth}}"))
|
||||
segUrl = PadNumber(mediaTemplate, "Bandwidth", bandwidth);
|
||||
if (mediaTemplate.Contains("{{Number}}"))
|
||||
segUrl = PadNumber(mediaTemplate, "Number", i);
|
||||
}
|
||||
else
|
||||
{
|
||||
segUrl = mediaTemplate.Replace("{{Bandwidth}}", bandwidth.ToString());
|
||||
segUrl = segUrl.Replace("{{Number}}", i.ToString());
|
||||
}
|
||||
fragments.Add(new JsonObject()
|
||||
{
|
||||
[mediaLocationKey] = ParserUtil.CombineURL(baseUrl, segUrl),
|
||||
["duration"] = segmentDuration
|
||||
});
|
||||
}
|
||||
representationMsInfo["Fragments"] = fragments;
|
||||
}
|
||||
else
|
||||
{
|
||||
var fragments = new JsonArray();
|
||||
|
||||
var segmentTime = 0L;
|
||||
var segmentD = 0L;
|
||||
var segmentNumber = representationMsInfo["StartNumber"].GetValue<int>();
|
||||
|
||||
void addSegmentUrl()
|
||||
{
|
||||
var segUrl = "";
|
||||
if (mediaTemplate.Contains("{0:D"))
|
||||
{
|
||||
if (mediaTemplate.Contains("{{Bandwidth}}"))
|
||||
segUrl = PadNumber(mediaTemplate, "Bandwidth", bandwidth);
|
||||
if (mediaTemplate.Contains("{{Number}}"))
|
||||
segUrl = PadNumber(mediaTemplate, "Number", segmentNumber);
|
||||
if (mediaTemplate.Contains("{{Time}}"))
|
||||
segUrl = PadNumber(mediaTemplate, "Time", segmentTime);
|
||||
}
|
||||
else
|
||||
{
|
||||
segUrl = mediaTemplate.Replace("{{Bandwidth}}", bandwidth.ToString());
|
||||
segUrl = segUrl.Replace("{{Number}}", segmentNumber.ToString());
|
||||
segUrl = segUrl.Replace("{{Time}}", segmentTime.ToString());
|
||||
}
|
||||
fragments.Add(new JsonObject()
|
||||
{
|
||||
[mediaLocationKey] = ParserUtil.CombineURL(baseUrl, segUrl),
|
||||
["duration"] = DoubleOrNull(segmentD, representationMsInfo["Timescale"].GetValue<int>())
|
||||
});
|
||||
}
|
||||
|
||||
if (representationMsInfo.ContainsKey("S"))
|
||||
{
|
||||
var array = representationMsInfo["S"].GetValue<JsonArray>();
|
||||
for (int i = 0; i < array.Count; i++)
|
||||
{
|
||||
var s = array[i];
|
||||
segmentTime = s["t"].GetValue<long>() == 0L ? segmentTime : s["t"].GetValue<long>();
|
||||
segmentD = s["d"].GetValue<long>();
|
||||
addSegmentUrl();
|
||||
segmentNumber++;
|
||||
for (int j = 0; j < s["r"].GetValue<long>(); j++)
|
||||
{
|
||||
segmentTime += segmentD;
|
||||
addSegmentUrl();
|
||||
segmentNumber++;
|
||||
}
|
||||
segmentTime += segmentD;
|
||||
}
|
||||
}
|
||||
representationMsInfo["Fragments"] = fragments;
|
||||
}
|
||||
}
|
||||
else if (representationMsInfo.ContainsKey("SegmentUrls") && representationMsInfo.ContainsKey("S"))
|
||||
{
|
||||
var fragments = new JsonArray();
|
||||
|
||||
var segmentIndex = 0;
|
||||
var timescale = representationMsInfo["Timescale"].GetValue<int>();
|
||||
foreach (var s in representationMsInfo["S"].GetValue<JsonArray>())
|
||||
{
|
||||
var duration = DoubleOrNull(s["d"], timescale);
|
||||
for (int j = 0; j < s["r"].GetValue<long>() + 1; j++)
|
||||
{
|
||||
var segmentUri = representationMsInfo["SegmentUrls"][segmentIndex].GetValue<string>();
|
||||
fragments.Add(new JsonObject()
|
||||
{
|
||||
[LocationKey(segmentUri)] = ParserUtil.CombineURL(baseUrl, segmentUri),
|
||||
["duration"] = duration
|
||||
});
|
||||
segmentIndex++;
|
||||
}
|
||||
}
|
||||
|
||||
representationMsInfo["Fragments"] = fragments;
|
||||
}
|
||||
else if (representationMsInfo.ContainsKey("SegmentUrls"))
|
||||
{
|
||||
var fragments = new JsonArray();
|
||||
|
||||
var segmentDuration = DoubleOrNull(representationMsInfo["SegmentDuration"].GetValue<double>(), representationMsInfo.ContainsKey("SegmentDuration") ? representationMsInfo["Timescale"].GetValue<int>() : 1);
|
||||
foreach (var jsonNode in representationMsInfo["SegmentUrls"].GetValue<JsonArray>())
|
||||
{
|
||||
var segmentUrl = jsonNode.GetValue<string>();
|
||||
if (segmentDuration != -1)
|
||||
{
|
||||
fragments.Add(new JsonObject()
|
||||
{
|
||||
[LocationKey(segmentUrl)] = ParserUtil.CombineURL(baseUrl, segmentUrl),
|
||||
["duration"] = segmentDuration
|
||||
});
|
||||
}
|
||||
else
|
||||
{
|
||||
fragments.Add(new JsonObject()
|
||||
{
|
||||
[LocationKey(segmentUrl)] = ParserUtil.CombineURL(baseUrl, segmentUrl)
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
representationMsInfo["Fragments"] = fragments;
|
||||
}
|
||||
|
||||
if (representationMsInfo.ContainsKey("Fragments"))
|
||||
{
|
||||
f["Url"] = string.IsNullOrEmpty(MpdUrl) ? baseUrl : MpdUrl;
|
||||
f["FragmentBaseUrl"] = baseUrl;
|
||||
if (representationMsInfo.ContainsKey("InitializationUrl"))
|
||||
{
|
||||
f["InitializationUrl"] = ParserUtil.CombineURL(baseUrl, representationMsInfo["InitializationUrl"].GetValue<string>());
|
||||
if (f["InitializationUrl"].GetValue<string>().StartsWith("$$Range"))
|
||||
{
|
||||
f["InitializationUrl"] = ParserUtil.CombineURL(baseUrl, f["InitializationUrl"].GetValue<string>());
|
||||
}
|
||||
f["Fragments"] = JsonArray.Parse(representationMsInfo["Fragments"].ToJsonString());
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
//整段mp4
|
||||
f["Fragments"] = new JsonArray() {
|
||||
new JsonObject()
|
||||
{
|
||||
["url"] = baseUrl,
|
||||
["duration"] = ts.TotalSeconds
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
//处理同一ID分散在不同Period的情况
|
||||
if (formatList.Any(_f => _f["FormatId"].ToJsonString() == f["FormatId"].ToJsonString() && _f["Width"].ToJsonString() == f["Width"].ToJsonString() && _f["ContentType"].ToJsonString() == f["ContentType"].ToJsonString()))
|
||||
{
|
||||
for (int i = 0; i < formatList.Count; i++)
|
||||
{
|
||||
//参数相同但不在同一个Period才可以
|
||||
if (formatList[i]["FormatId"].ToJsonString() == f["FormatId"].ToJsonString() && formatList[i]["Width"].ToJsonString() == f["Width"].ToJsonString() && formatList[i]["ContentType"].ToJsonString() == f["ContentType"].ToJsonString() && formatList[i]["PeriodIndex"].ToJsonString() != f["PeriodIndex"].ToJsonString())
|
||||
{
|
||||
var array = formatList[i]["Fragments"].AsArray();
|
||||
foreach (var item in f["Fragments"].AsArray())
|
||||
{
|
||||
array.Add(item);
|
||||
}
|
||||
formatList[i]["Fragments"] = array;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
formatList.Add(f);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var streamList = new List<StreamSpec>();
|
||||
foreach (var item in formatList)
|
||||
{
|
||||
//基本信息
|
||||
StreamSpec streamSpec = new();
|
||||
streamSpec.Name = item["FormatId"].GetValue<string>();
|
||||
streamSpec.Bandwidth = item["Tbr"].GetValue<int>();
|
||||
streamSpec.Codecs = item["Codecs"].GetValue<string>();
|
||||
streamSpec.Language = item["Language"].GetValue<string>();
|
||||
streamSpec.FrameRate = item["Fps"].GetValue<double>();
|
||||
streamSpec.Resolution = item["Width"].GetValue<int>() != -1 ? $"{item["Width"]}x{item["Height"]}" : "";
|
||||
streamSpec.Url = MpdUrl;
|
||||
streamSpec.MediaType = item["ContentType"].GetValue<string>() switch
|
||||
{
|
||||
"text" => MediaType.SUBTITLES,
|
||||
"audio" => MediaType.AUDIO,
|
||||
_ => null
|
||||
};
|
||||
|
||||
//组装分片
|
||||
Playlist playlist = new();
|
||||
List<MediaSegment> segments = new();
|
||||
//Initial URL
|
||||
if (item.ContainsKey("InitializationUrl"))
|
||||
{
|
||||
var initUrl = item["InitializationUrl"].GetValue<string>();
|
||||
if (Regex.IsMatch(initUrl, "\\$\\$Range=(\\d+)-(\\d+)"))
|
||||
{
|
||||
var match = Regex.Match(initUrl, "\\$\\$Range=(\\d+)-(\\d+)");
|
||||
string rangeStr = match.Value;
|
||||
long start = Convert.ToInt64(match.Groups[1].Value);
|
||||
long end = Convert.ToInt64(match.Groups[2].Value);
|
||||
playlist.MediaInit = new MediaSegment()
|
||||
{
|
||||
EncryptInfo = new EncryptInfo()
|
||||
{
|
||||
Method = EncryptMethod.UNKNOWN
|
||||
},
|
||||
Url = PreProcessUrl(initUrl.Replace(rangeStr, "")),
|
||||
StartRange = start,
|
||||
ExpectLength = end - start + 1
|
||||
};
|
||||
}
|
||||
else
|
||||
{
|
||||
playlist.MediaInit = new MediaSegment()
|
||||
{
|
||||
Url = PreProcessUrl(initUrl)
|
||||
};
|
||||
}
|
||||
}
|
||||
//分片地址
|
||||
var fragments = item["Fragments"].AsArray();
|
||||
var index = 0;
|
||||
foreach (var fragment in fragments)
|
||||
{
|
||||
var seg = fragment.AsObject();
|
||||
var dur = seg.ContainsKey("duration") ? seg["duration"].GetValue<double>() : 0.0;
|
||||
var url = seg.ContainsKey("url") ? seg["url"].GetValue<string>() : seg["path"].GetValue<string>();
|
||||
url = PreProcessUrl(url);
|
||||
MediaSegment mediaSegment = new()
|
||||
{
|
||||
Index = index,
|
||||
Duration = dur,
|
||||
Url = url,
|
||||
};
|
||||
|
||||
if (Regex.IsMatch(url, "\\$\\$Range=(\\d+)-(\\d+)"))
|
||||
{
|
||||
var match = Regex.Match(url, "\\$\\$Range=(\\d+)-(\\d+)");
|
||||
string rangeStr = match.Value;
|
||||
long start = Convert.ToInt64(match.Groups[1].Value);
|
||||
long end = Convert.ToInt64(match.Groups[2].Value);
|
||||
mediaSegment.StartRange = start;
|
||||
mediaSegment.ExpectLength = end - start + 1;
|
||||
}
|
||||
|
||||
segments.Add(mediaSegment);
|
||||
index++;
|
||||
}
|
||||
playlist.MediaParts = new List<MediaPart>()
|
||||
{
|
||||
new MediaPart()
|
||||
{
|
||||
MediaSegments = segments
|
||||
}
|
||||
};
|
||||
|
||||
//统一添加EncryptInfo
|
||||
playlist.MediaInit.EncryptInfo = new EncryptInfo()
|
||||
{
|
||||
Method = EncryptMethod.UNKNOWN
|
||||
};
|
||||
foreach (var seg in playlist.MediaParts[0].MediaSegments)
|
||||
{
|
||||
seg.EncryptInfo = new EncryptInfo()
|
||||
{
|
||||
Method = EncryptMethod.UNKNOWN
|
||||
};
|
||||
}
|
||||
streamSpec.Playlist = playlist;
|
||||
streamList.Add(streamSpec);
|
||||
}
|
||||
return streamList;
|
||||
}
|
||||
|
||||
static bool CheckValid(string url)
|
||||
{
|
||||
try
|
||||
{
|
||||
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(new Uri(url));
|
||||
request.Timeout = 120000;
|
||||
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
|
||||
if (((int)response.StatusCode).ToString().StartsWith("2")) return true;
|
||||
else return false;
|
||||
}
|
||||
catch (Exception) { return false; }
|
||||
}
|
||||
|
||||
static double DoubleOrNull(object text, int scale = 1)
|
||||
{
|
||||
try
|
||||
{
|
||||
return Convert.ToDouble(text) / scale;
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
static int IntOrNull(string text, int scale = 1)
|
||||
{
|
||||
try
|
||||
{
|
||||
return Convert.ToInt32(text) / scale;
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
private JsonObject ExtractMultisegmentInfo(XmlElement period, XmlNamespaceManager nsMgr, JsonObject jsonObject)
|
||||
{
|
||||
var MultisegmentInfo = new JsonObject();
|
||||
foreach (var item in jsonObject)
|
||||
{
|
||||
MultisegmentInfo[item.Key] = JsonNode.Parse(item.Value.ToJsonString());
|
||||
}
|
||||
void ExtractCommon(XmlNode source)
|
||||
{
|
||||
var sourceE = (XmlElement)source;
|
||||
var segmentTimeline = source.SelectSingleNode("ns:SegmentTimeline", nsMgr);
|
||||
if (segmentTimeline != null)
|
||||
{
|
||||
var sE = segmentTimeline.SelectNodes("ns:S", nsMgr);
|
||||
if (sE?.Count > 0)
|
||||
{
|
||||
MultisegmentInfo["TotalNumber"] = 0;
|
||||
var SList = new JsonArray();
|
||||
foreach (XmlElement s in sE)
|
||||
{
|
||||
var r = string.IsNullOrEmpty(s.GetAttribute("r")) ? 0 : Convert.ToInt64(s.GetAttribute("r"));
|
||||
MultisegmentInfo["TotalNumber"] = MultisegmentInfo["TotalNumber"]?.GetValue<int>() + 1 + r;
|
||||
SList.Add(new JsonObject()
|
||||
{
|
||||
["t"] = string.IsNullOrEmpty(s.GetAttribute("t")) ? 0 : Convert.ToInt64(s.GetAttribute("t")),
|
||||
["d"] = Convert.ToInt64(s.GetAttribute("d")),
|
||||
["r"] = r
|
||||
});
|
||||
}
|
||||
MultisegmentInfo.Add("S", SList);
|
||||
}
|
||||
}
|
||||
var startNumber = sourceE.GetAttribute("startNumber");
|
||||
if (!string.IsNullOrEmpty(startNumber))
|
||||
{
|
||||
MultisegmentInfo["StartNumber"] = Convert.ToInt32(startNumber);
|
||||
}
|
||||
var timescale = sourceE.GetAttribute("timescale");
|
||||
if (!string.IsNullOrEmpty(timescale))
|
||||
{
|
||||
MultisegmentInfo["Timescale"] = Convert.ToInt32(timescale);
|
||||
}
|
||||
var segmentDuration = sourceE.GetAttribute("duration");
|
||||
if (!string.IsNullOrEmpty(segmentDuration))
|
||||
{
|
||||
MultisegmentInfo["SegmentDuration"] = Convert.ToDouble(segmentDuration);
|
||||
}
|
||||
}
|
||||
|
||||
void ExtractInitialization(XmlNode source)
|
||||
{
|
||||
var initialization = source.SelectSingleNode("ns:Initialization", nsMgr);
|
||||
if (initialization != null)
|
||||
{
|
||||
MultisegmentInfo["InitializationUrl"] = ((XmlElement)initialization).GetAttribute("sourceURL");
|
||||
if (((XmlElement)initialization).HasAttribute("range"))
|
||||
{
|
||||
MultisegmentInfo["InitializationUrl"] += "$$Range=" + ((XmlElement)initialization).GetAttribute("range");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var segmentList = period.SelectSingleNode("ns:SegmentList", nsMgr);
|
||||
if (segmentList != null)
|
||||
{
|
||||
ExtractCommon(segmentList);
|
||||
ExtractInitialization(segmentList);
|
||||
var segmentUrlsE = segmentList.SelectNodes("ns:SegmentURL", nsMgr);
|
||||
var urls = new JsonArray();
|
||||
foreach (XmlElement segment in segmentUrlsE)
|
||||
{
|
||||
if (segment.HasAttribute("mediaRange"))
|
||||
{
|
||||
urls.Add("$$Range=" + segment.GetAttribute("mediaRange"));
|
||||
}
|
||||
else
|
||||
{
|
||||
urls.Add(segment.GetAttribute("media"));
|
||||
}
|
||||
}
|
||||
MultisegmentInfo["SegmentUrls"] = urls;
|
||||
}
|
||||
else
|
||||
{
|
||||
var segmentTemplate = period.SelectSingleNode("ns:SegmentTemplate", nsMgr);
|
||||
if (segmentTemplate != null)
|
||||
{
|
||||
ExtractCommon(segmentTemplate);
|
||||
var media = ((XmlElement)segmentTemplate).GetAttribute("media");
|
||||
if (!string.IsNullOrEmpty(media))
|
||||
{
|
||||
MultisegmentInfo["Media"] = media;
|
||||
}
|
||||
var initialization = ((XmlElement)segmentTemplate).GetAttribute("initialization");
|
||||
if (!string.IsNullOrEmpty(initialization))
|
||||
{
|
||||
MultisegmentInfo["Initialization"] = initialization;
|
||||
}
|
||||
else
|
||||
{
|
||||
ExtractInitialization(segmentTemplate);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return MultisegmentInfo;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 预处理URL
|
||||
/// </summary>
|
||||
private string PreProcessUrl(string url)
|
||||
{
|
||||
if (ParserConfig.AppendUrlParams)
|
||||
{
|
||||
url += new Regex("\\?.*").Match(MpdUrl).Value;
|
||||
}
|
||||
|
||||
return url;
|
||||
}
|
||||
|
||||
private void PreProcessContent()
|
||||
{
|
||||
//XiGua
|
||||
if (this.MpdContent.Contains("<mas:") && !this.MpdContent.Contains("xmlns:mas"))
|
||||
{
|
||||
this.MpdContent = this.MpdContent.Replace("<MPD ", "<MPD xmlns:mas=\"urn:marlin:mas:1-0:services:schemas:mpd\" ");
|
||||
}
|
||||
}
|
||||
|
||||
public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
|
||||
{
|
||||
//MPD不需要重新去读取内容，只判断一下最后的分片是否有效即可
|
||||
foreach (var item in streamSpecs)
|
||||
{
|
||||
//检测最后一片的有效性
|
||||
if (item.Playlist.MediaParts[0].MediaSegments.Count > 1)
|
||||
{
|
||||
var last = item.Playlist.MediaParts[0].MediaSegments.Last();
|
||||
var secondToLast = item.Playlist.MediaParts[0].MediaSegments[item.Playlist.MediaParts[0].MediaSegments.Count - 2];
|
||||
var urlLast = last.Url;
|
||||
var urlSecondToLast = secondToLast.Url;
|
||||
//普通分段才判断
|
||||
if (urlLast.StartsWith("http") && !Regex.IsMatch(urlLast, "\\$\\$Range=(\\d+)-(\\d+)"))
|
||||
{
|
||||
Logger.Warn(ResString.checkingLast + $"({(item.MediaType == MediaType.AUDIO ? "Audio" : (item.MediaType == MediaType.SUBTITLES ? "Sub" : "Video"))})");
|
||||
//倒数第二段正常，倒数第一段不正常
|
||||
if (CheckValid(urlSecondToLast) && !CheckValid(urlLast))
|
||||
item.Playlist.MediaParts[0].MediaSegments.RemoveAt(item.Playlist.MediaParts[0].MediaSegments.Count - 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -107,14 +107,11 @@ namespace N_m3u8DL_RE.Parser.Extractor
|
|||
/// </summary>
|
||||
private string PreProcessUrl(string url)
|
||||
{
|
||||
if (url.Contains("?__gda__"))
|
||||
{
|
||||
url += new Regex("\\?__gda__.*").Match(M3u8Url).Value;
|
||||
}
|
||||
if (M3u8Url.Contains("//dlsc.hcs.cmvideo.cn") && (url.EndsWith(".ts") || url.EndsWith(".mp4")))
|
||||
if (ParserConfig.AppendUrlParams)
|
||||
{
|
||||
url += new Regex("\\?.*").Match(M3u8Url).Value;
|
||||
}
|
||||
|
||||
return url;
|
||||
}
|
||||
|
||||
|
|
@ -479,11 +476,18 @@ namespace N_m3u8DL_RE.Parser.Extractor
|
|||
}
|
||||
|
||||
private async Task<byte[]> ParseKeyAsync(string uri)
|
||||
{
|
||||
if (uri.ToLower().StartsWith("base64:"))
|
||||
{
|
||||
return Convert.FromBase64String(uri.Substring(7));
|
||||
}
|
||||
else
|
||||
{
|
||||
var segUrl = PreProcessUrl(ParserUtil.CombineURL(BaseUrl, uri));
|
||||
var bytes = await HTTPUtil.GetBytesAsync(segUrl, ParserConfig.Headers);
|
||||
return bytes;
|
||||
}
|
||||
}
|
||||
|
||||
public async Task<List<StreamSpec>> ExtractStreamsAsync(string rawText)
|
||||
{
|
||||
|
|
@ -494,12 +498,6 @@ namespace N_m3u8DL_RE.Parser.Extractor
|
|||
Logger.Warn(ResString.masterM3u8Found);
|
||||
var lists = await ParseMasterListAsync();
|
||||
lists = lists.DistinctBy(p => p.Url).ToList();
|
||||
for (int i = 0; i < lists.Count; i++)
|
||||
{
|
||||
//重新加载m3u8
|
||||
await LoadM3u8FromUrlAsync(lists[i].Url);
|
||||
lists[i].Playlist = await ParseListAsync();
|
||||
}
|
||||
return lists;
|
||||
}
|
||||
else
|
||||
|
|
@ -530,5 +528,15 @@ namespace N_m3u8DL_RE.Parser.Extractor
|
|||
this.M3u8Url = this.BaseUrl = url;
|
||||
this.PreProcessContent();
|
||||
}
|
||||
|
||||
public async Task FetchPlayListAsync(List<StreamSpec> lists)
|
||||
{
|
||||
for (int i = 0; i < lists.Count; i++)
|
||||
{
|
||||
//重新加载m3u8
|
||||
await LoadM3u8FromUrlAsync(lists[i].Url);
|
||||
lists[i].Playlist = await ParseListAsync();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -13,5 +13,7 @@ namespace N_m3u8DL_RE.Parser.Extractor
|
|||
ParserConfig ParserConfig { get; set; }
|
||||
|
||||
Task<List<StreamSpec>> ExtractStreamsAsync(string rawText);
|
||||
|
||||
Task FetchPlayListAsync(List<StreamSpec> streamSpecs);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -38,6 +38,11 @@ namespace N_m3u8DL_RE.Parser
|
|||
this.rawText = HTTPUtil.GetWebSourceAsync(url, parserConfig.Headers).Result;
|
||||
parserConfig.Url = url;
|
||||
}
|
||||
else if (File.Exists(url))
|
||||
{
|
||||
this.rawText = File.ReadAllText(url);
|
||||
parserConfig.Url = new Uri(url).AbsoluteUri;
|
||||
}
|
||||
this.rawText = rawText.Trim();
|
||||
LoadSourceFromText(this.rawText);
|
||||
}
|
||||
|
|
@ -51,9 +56,10 @@ namespace N_m3u8DL_RE.Parser
|
|||
Logger.InfoMarkUp(ResString.matchHLS);
|
||||
extractor = new HLSExtractor(parserConfig);
|
||||
}
|
||||
else if (rawText.StartsWith(".."))
|
||||
else if (rawText.Contains("<MPD "))
|
||||
{
|
||||
|
||||
Logger.InfoMarkUp(ResString.matchDASH);
|
||||
extractor = new DASHExtractor(parserConfig);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -61,9 +67,24 @@ namespace N_m3u8DL_RE.Parser
|
|||
}
|
||||
}
|
||||
|
||||
public Task<List<StreamSpec>> ExtractStreamsAsync()
|
||||
/// <summary>
|
||||
/// 开始解析流媒体信息
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
public async Task<List<StreamSpec>> ExtractStreamsAsync()
|
||||
{
|
||||
return extractor.ExtractStreamsAsync(rawText);
|
||||
Logger.Info(ResString.parsingStream);
|
||||
return await extractor.ExtractStreamsAsync(rawText);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 根据规格说明填充媒体播放列表信息
|
||||
/// </summary>
|
||||
/// <param name="streamSpecs"></param>
|
||||
public async Task FetchPlayListAsync(List<StreamSpec> streamSpecs)
|
||||
{
|
||||
Logger.Info(ResString.parsingStream);
|
||||
await extractor.FetchPlayListAsync(streamSpecs);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -14,6 +14,9 @@ namespace N_m3u8DL_RE.Parser.Util
|
|||
{
|
||||
public static List<StreamSpec> SelectStreams(IEnumerable<StreamSpec> lists)
|
||||
{
|
||||
if (lists.Count() == 1)
|
||||
return new List<StreamSpec>(lists);
|
||||
|
||||
//基本流
|
||||
var basicStreams = lists.Where(x => x.MediaType == null);
|
||||
//可选音频轨道
|
||||
|
|
|
|||
|
|
@ -32,8 +32,8 @@ namespace N_m3u8DL_RE
|
|||
//Logger.LogLevel = LogLevel.DEBUG;
|
||||
var config = new ParserConfig();
|
||||
var url = string.Empty;
|
||||
//url = "http://playertest.longtailvideo.com/adaptive/oceans_aes/oceans_aes.m3u8";
|
||||
url = "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_16x9/bipbop_16x9_variant.m3u8";
|
||||
url = "http://playertest.longtailvideo.com/adaptive/oceans_aes/oceans_aes.m3u8";
|
||||
//url = "https://bitmovin-a.akamaihd.net/content/MI201109210084_1/mpds/f08e80da-bf1d-4e3d-8899-f0f6155f6efa.mpd";
|
||||
|
||||
if (string.IsNullOrEmpty(url))
|
||||
{
|
||||
|
|
@ -44,7 +44,14 @@ namespace N_m3u8DL_RE
|
|||
var extractor = new StreamExtractor(config);
|
||||
extractor.LoadSourceFromUrl(url);
|
||||
|
||||
//解析流信息
|
||||
var streams = await extractor.ExtractStreamsAsync();
|
||||
|
||||
if (streams.Count == 0)
|
||||
{
|
||||
throw new Exception("解析失败");
|
||||
}
|
||||
|
||||
//全部媒体
|
||||
var lists = streams.OrderByDescending(p => p.Bandwidth);
|
||||
//基本流
|
||||
|
|
@ -59,33 +66,23 @@ namespace N_m3u8DL_RE
|
|||
|
||||
Logger.Info(ResString.streamsInfo, lists.Count(), basicStreams.Count(), audios.Count(), subs.Count());
|
||||
|
||||
if (streams.Count > 1)
|
||||
foreach (var item in lists)
|
||||
{
|
||||
Logger.InfoMarkUp(item.ToString());
|
||||
}
|
||||
|
||||
foreach (var item in lists) Logger.InfoMarkUp(item.ToString());
|
||||
|
||||
//展示交互式选择框
|
||||
var selectedStreams = PromptUtil.SelectStreams(lists);
|
||||
|
||||
//加载playlist
|
||||
Logger.Info(ResString.selectedStream);
|
||||
await extractor.FetchPlayListAsync(selectedStreams);
|
||||
Logger.Warn(ResString.writeJson);
|
||||
await File.WriteAllTextAsync("meta_selected.json", GlobalUtil.ConvertToJson(selectedStreams), Encoding.UTF8);
|
||||
foreach (var item in selectedStreams)
|
||||
{
|
||||
Logger.InfoMarkUp(item.ToString());
|
||||
}
|
||||
}
|
||||
else if (streams.Count == 1)
|
||||
{
|
||||
var playlist = streams.First().Playlist;
|
||||
if (playlist.IsLive)
|
||||
{
|
||||
Logger.Warn(ResString.liveFound);
|
||||
}
|
||||
//Print(playlist);
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new Exception("解析失败");
|
||||
}
|
||||
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue