async Task read(int index)
{
danmaku.ClearDanmu();
media.Visibility = Visibility.Collapsed;
grid_status.Visibility = Visibility.Visible;
cid = infos[index].Cid;
aid = infos[0].Title;
status.Text = "获取视频地址...";
URL = await ContentServ.GetVedioURL(cid, quality, format);
status.Text += (URL == null)
? "失败"
: $"{URL.Ps.Count}个{format}分段";
if (URL == null)
{
return;
}
status.Text += Environment.NewLine + "加载弹幕数据...";
try
{
DanmuPool = await GetDanmu(cid);
}
catch (Exception e)
{
status.Text += "失败" + e.Message;
}
if (format == VideoFormat.mp4)
{
// MP4只有一个分段（根据经验(￣▽￣)"）
media.Source = new Uri(URL.Ps[0].Url);
}
else if (format == VideoFormat.flv)
{
// 先读第一个分段
SetFFmpegSource(URL.Ps[0].Url);
}
if (URL.Ps.Count > 1)
{
// Flag该立的时候也得立啊
// GetFlags();
}
_currentP = URL.Ps[0];
txt_title.Text = infos[index].Title;
if (URL.Acceptquality.Contains("1"))
{
q1.Visibility = Visibility.Visible;
}
if (URL.Acceptquality.Contains("2"))
{
q2.Visibility = Visibility.Visible;
}
if (URL.Acceptquality.Contains("3"))
{
q3.Visibility = Visibility.Visible;
}
status.Text += Environment.NewLine + "正在缓冲视频...";
loading.Visibility = Visibility.Visible;
}
private FileSystemDirectory CreateDirectory(Purl path, FileAndDirectoryRules rules)
{
FileSystemDirectory entry = new FileSystemDirectory(path);
foreach (string subPath in _fileSystem.GetEntries(path.AsString))
{
Purl entryPath = new Purl(subPath);
FileSystemEntry subEntry = FindEntry(entryPath, rules);
if (subEntry != null)
{
entry.Entries.Add(subEntry);
}
}
return entry;
}
public FileSystemEntry FindEntry(Purl path, FileAndDirectoryRules rules)
{
if (_fileSystem.IsFile(path.AsString))
{
if (rules.IncludesFile(path) != IncludeExclude.Exclude)
{
return CreateFile(path);
}
}
else if (_fileSystem.IsDirectory(path.AsString))
{
if (rules.IncludesDirectory(path) != IncludeExclude.Exclude)
{
return CreateDirectory(path, rules);
}
}
return null;
}
/// <summary>
/// 设置FFmpeg媒体源
/// </summary>
private void SetFFmpegSource(string url)
{
FFmpegMSS = FFmpegInteropMSS.CreateFFmpegInteropMSSFromUri(url, force_a, force_v);
MediaStreamSource mss = FFmpegMSS.GetMediaStreamSource();
if (mss != null)
{
media.SetMediaStreamSource(mss);
}
// 更新当前分段
int index = URL.Ps.FindIndex(p => p.Url == url);
_currentP = URL.Ps[index];
///更新时间偏移量，用于<see cref="Timer_danmaku_Tick(object, object)"/>
_offsettime = 0;
for (int i = index; i > 0; i--)
{
_offsettime += (int)(URL.Ps[i - 1].Length / 1000);
}
}
public static FileSystemFile CreateFile(Purl path)
{
FileProperties properties = Infrastructure.FileSystem.GetFileProperties(path.AsString);
return new FileSystemFile(path, properties.Length, properties.CreationTime, properties.LastAccessTime, properties.LastWriteTime);
}
private static FileSystemFile CreateFile(Purl path)
{
return FileSystemFileFactory.CreateFile(path);
}
public FileSystemEntry FindEntry(Purl path)
{
return FindEntry(path, _fileAndDirectoryRulesRepository.FindDefault());
}