/// <summary>
/// 有的MP3文件标题有错, 解析artists会出错
/// 手动修改MP3Info.Title属性, 和已经下载好的MP3文件名
///
/// 如
/// "09. 四郎探母9(坐宫) 管绍华 王玉蓉 百代"
/// 修改为
/// "09.四郎探母9(坐宫) 管绍华 王玉蓉 百代"
/// 否则原标题分组是 "09." "四郎探母9(坐宫)" "管绍华" "王玉蓉" "百代",
/// 会把"四郎探母9(坐宫)"也当作artist
/// </summary>
private static void NormalizeMp3FileName(List <ExcelSheetModel> sheetModels, string oldFileName, string newFileName)
{
string categoryName = null, albumName = null;
Mp3Info wrongMp3 = null;
// 大分类： 如 2018年出品-京剧
foreach (var categoryInfo in sheetModels)
{
// 该分类下面的专辑: 1.京剧正宗谭派《王又宸专辑》
foreach (MediaItem mediaItem in categoryInfo.MediaItems)
{
wrongMp3 = mediaItem.Mp3Items?.FirstOrDefault(x => x.Title == oldFileName);
if (wrongMp3 != null)
{
categoryName = categoryInfo.Name;
albumName = mediaItem.Title;
break;
}
}
if (wrongMp3 != null)
{
break;
}
}
if (wrongMp3 != null &&
!string.IsNullOrEmpty(categoryName) &&
!string.IsNullOrEmpty(albumName))
{
var mp3FilePath = System.IO.Path.Combine(StaticVariables.GetDownloadDir(),
categoryName, // "2018年出品-京剧",
albumName, // "11 京剧红生大王《林树森专辑》",
oldFileName + ".mp3");
var newMp3FilePath = System.IO.Path.Combine(
System.IO.Path.GetDirectoryName(mp3FilePath),
newFileName + ".mp3"
);
if (System.IO.File.Exists(mp3FilePath))
{
if (System.IO.File.Exists(newMp3FilePath))
{
System.IO.File.Delete(newMp3FilePath);
}
System.IO.File.Move(mp3FilePath, newMp3FilePath);
}
// 更新MP3标题
wrongMp3.Title = newFileName;
}
}
// 下载某个具体专辑信息
// 如：1.《评剧皇后白玉霜 》第一集 http://www.bavc.com.cn/c44169.htm
static MediaItem ParseMediaItem(string title, string url)
{
MediaItem item = new MediaItem();
item.Title = title;
item.Url = url;
DebugInfo($"读取专辑: {item.Title}");
var homePageNode = HtmlCacheParser.LoadHtmlNode(url);
// 主要内容的node
var mainNode = homePageNode.SelectSingleNode("/html/body/table[7]");
//发布时间: /html/body/table[7]/tbody/tr[1]/td/p[2]/font/span
item.PublishTime = mainNode.SelectSingleNode(".//font/span")?.InnerText;
//简介 /html/body/table[7]/tbody/tr[3]/td/div/p[1]
item.Description = mainNode.SelectSingleNode(".//div[@class='article']")?.InnerText;
// 封面图片 /html/body/table[7]/tbody/tr[3]/td/div/p[2]/img
var imageAttr = mainNode.SelectSingleNode(".//div[@class='article']//img")?.Attributes["src"]?.Value;
if (!string.IsNullOrEmpty(imageAttr))
{
item.ImageUrl = StaticVariables.HOST_NAME.TrimEnd('/') + imageAttr;
}
// MP3列表 /html/body/table[7]/tbody/tr[7]/td/p/table/tbody/tr[1]/td[2]/a
foreach (var link in mainNode.SelectNodes(".//a"))
{
var href = link.Attributes["href"].Value;
var mp3Title = link.InnerText;
// http://www.bavc.com.cn/xxxx.htm
var address = StaticVariables.HOST_NAME.TrimEnd('/') + href;
var mp3Info = new Mp3Info
{
Title = mp3Title,
Url = address
};
// DebugInfo($"\t读取专辑下曲目: {mp3Title}");
LoadMp3Info(mp3Info);
item.Mp3Items.Add(mp3Info);
}
return(item);
}
/// <summary>
/// 生成标签
/// </summary>
/// <param name="tags">MP3标签</param>
/// <param name="mp3FileDir">MP3文件夹</param>
/// <param name="mp3Info">MP3信息</param>
/// <param name="mediaItem">MP3所在专辑信息</param>
private static void SetTags(TagLib.Tag tag, string mp3FileDir, Mp3Info mp3Info, MediaItem mediaItem)
{
tag.Title = mp3Info.Title;
tag.Album = mediaItem.Title;
var artists = mp3Info.GuessArtists(mediaItem.Title, out string companyName);
if (artists != null && artists.Length > 0)
{
tag.AlbumArtists = new string[1] {
artists[0]
};
tag.Artists = artists;
}
// 唱片公司写到Grouping属性中?
if (string.IsNullOrEmpty(companyName))
{
tag.Grouping = companyName;
}
var trackIndex = mediaItem.Mp3Items?.FindIndex(x => x.Title == mp3Info.Title);
if (trackIndex > -1)
{
tag.Track = (uint)trackIndex + 1;
tag.TrackCount = (uint)mediaItem.Mp3Items.Count;
}
// 播放器不支持内嵌歌词, 目前还是放到备注里了
//tag.Lyrics = mp3Info.Lyric;
tag.Comment = mp3Info.Lyric; //tag.Comment = "强森强森整理";
tag.Copyright = "北京典籍与经典老唱片数字化出版项目";
// 封面图片(默认名称为_avatar.jpg)
var mp3CoverFilePath = Path.Combine(mp3FileDir, StaticVariables.ALBUM_MP3_COVER_NAME);
if (System.IO.File.Exists(mp3CoverFilePath))
{
var fileBytes = System.IO.File.ReadAllBytes(mp3CoverFilePath);
var corverPic = new TagLib.Picture(new TagLib.ByteVector(fileBytes));
// apply corver
tag.Pictures = new TagLib.IPicture[] { corverPic };
}
}
/// url为某个具体MP3播放页面
/// 从url中读取MP3相关信息
static void LoadMp3Info(Mp3Info mp3Info)
{
if (mp3Info == null || string.IsNullOrEmpty(mp3Info.Url))
{
throw new ArgumentException(nameof(mp3Info));
}
// 播放页面左侧有导航栏的情况（少数是这样）
// 无导航： http://www.bavc.com.cn/w10276740.htm?page=1
// 有导航： http://www.bavc.com.cn/w10276738.htm?page=1
var homePageNode = HtmlCacheParser.LoadHtmlNode(mp3Info.Url);
var tdNodes = homePageNode.SelectNodes("/html/body/table[4]/tbody/tr/td");
if (tdNodes == null || tdNodes.Count == 0)
{
HtmlParseLogger.Error($"{mp3Info.Title}({mp3Info.Url})页面信息不存在");
}
// 音频页面有导航栏xpath不同
bool hasSidebar = tdNodes.Count > 1;
HtmlNode mainNode = null;
if (!hasSidebar)
{
mainNode = homePageNode.SelectSingleNode("/html/body/table[4]/tbody/tr/td/table[4]");
}
else
{
mainNode = homePageNode.SelectSingleNode("/html/body/table[4]/tbody/tr/td[3]/center/table[last()]");
}
if (mainNode == null)
{
HtmlParseLogger.Error($"{mp3Info.Title}({mp3Info.Url})页面信息不存在");
}
// 标题(列表页已经获取了) /html/body/table[4]/tbody/tr/td/table[4]/tbody/tr[2]/td/table/tbody/tr[1]/td/p[1]/span
// 当前读取方式会显示‘Your browser does not support’，<a>写出了地址
mp3Info.Mp3DownloadUrl = mainNode.SelectSingleNode(".//table[1]//table[1]//a")?.Attributes["href"]?.Value;
// 如果没有MP3, 检测MP4
if (string.IsNullOrEmpty(mp3Info.Mp3DownloadUrl))
{
mp3Info.Mp4DownloadUrl = GuessMp4DownloadUrl(mp3Info.Title, mp3Info.Url);
}
// 歌词标题和歌词在一个td里, 标题带有<strong>
// /html/body/table[4]/tbody/tr/td/table[4]/tbody/tr[2]/td/table/tbody/tr[5]/td/strong
// /html/body/table[4]/tbody/tr/td/table[4]/tbody/tr[2]/td/table/tbody/tr[4]/td
// 歌词部分有两种可能
HtmlNode lyricNode = mainNode.SelectSingleNode("./tbody/tr[last()-1]/td/table/tbody/tr[last()]");
if (lyricNode == null)
{
lyricNode = mainNode.SelectSingleNode("./tbody/tr[last()-2]/td/table/tbody/tr[last()]");
}
if (lyricNode == null)
{
HtmlParseLogger.Error($"{mp3Info.Title}({mp3Info.Url})歌词信息不存在, 跳过");
}
// 大部分标题在<p><strong>{Title}</strong></p>中
// 目前只发现13. 《梨园名票唱腔选》第三集 "06.武家坡-2 夏山楼主 高亭"没有<strong>, 标题<p>{Title}</p>中
var lyricTitle = (lyricNode?.SelectSingleNode(".//strong") ??
lyricNode?.SelectSingleNode(".//p"))?.InnerText;
var lyric = lyricNode?.InnerText;
// .Replace(" ", "")
lyric = lyric?.Replace("\r\n", "");
// 歌词去掉标题部分
if (!string.IsNullOrEmpty(lyricTitle) &&
!string.IsNullOrEmpty(lyric))
{
var titleIndex = lyric.IndexOf(lyricTitle);
// 标题出现在开头
if (titleIndex == 0 && lyric.Length > lyricTitle.Length)
{
lyric = lyric.Substring(lyricTitle.Length);
}
}
mp3Info.Lyric = lyric;
mp3Info.LyricTitle = lyricTitle;
}
