private async Task <object> GetPlaylistAsync(VideoStreamRequest request, string name)
{
var state = await GetState(request, CancellationToken.None).ConfigureAwait(false);
var builder = new StringBuilder();
builder.AppendLine("#EXTM3U");
builder.AppendLine("#EXT-X-VERSION:3");
builder.AppendLine("#EXT-X-TARGETDURATION:" + state.SegmentLength.ToString(UsCulture));
builder.AppendLine("#EXT-X-MEDIA-SEQUENCE:0");
var queryStringIndex = Request.RawUrl.IndexOf('?');
var queryString = queryStringIndex == -1 ? string.Empty : Request.RawUrl.Substring(queryStringIndex);
var seconds = TimeSpan.FromTicks(state.RunTimeTicks ?? 0).TotalSeconds;
var index = 0;
while (seconds > 0)
{
var length = seconds >= state.SegmentLength ? state.SegmentLength : seconds;
builder.AppendLine("#EXTINF:" + length.ToString(UsCulture));
builder.AppendLine(string.Format("hlsdynamic/{0}/{1}.ts{2}",
name,
index.ToString(UsCulture),
queryString));
seconds -= state.SegmentLength;
index++;
}
builder.AppendLine("#EXT-X-ENDLIST");
var playlistText = builder.ToString();
return(ResultFactory.GetResult(playlistText, MimeTypes.GetMimeType("playlist.m3u8"), new Dictionary <string, string>()));
}
private async Task <object> GetAsync(GetMasterHlsVideoStream request)
{
var state = await GetState(request, CancellationToken.None).ConfigureAwait(false);
int audioBitrate;
int videoBitrate;
GetPlaylistBitrates(state, out audioBitrate, out videoBitrate);
var appendBaselineStream = false;
var baselineStreamBitrate = 64000;
var hlsVideoRequest = state.VideoRequest as GetMasterHlsVideoStream;
if (hlsVideoRequest != null)
{
appendBaselineStream = hlsVideoRequest.AppendBaselineStream;
baselineStreamBitrate = hlsVideoRequest.BaselineStreamAudioBitRate ?? baselineStreamBitrate;
}
var playlistText = GetMasterPlaylistFileText(videoBitrate + audioBitrate, appendBaselineStream, baselineStreamBitrate);
return(ResultFactory.GetResult(playlistText, MimeTypes.GetMimeType("playlist.m3u8"), new Dictionary <string, string>()));
}
public HttpResult(FileInfo fileResponse, bool asAttachment)
: this(fileResponse, MimeTypes.GetMimeType(fileResponse.Name), asAttachment)
{
}
public override void Execute(IRequest req, IResponse res, object requestDto)
{
if (req.Verb != HttpMethods.Get && req.Verb != HttpMethods.Head)
{
return;
}
if (req.IsInProcessRequest())
{
return;
}
var feature = HostContext.GetPlugin <HttpCacheFeature>();
if (feature == null)
{
throw new NotSupportedException(ErrorMessages.CacheFeatureMustBeEnabled.Fmt("[CacheResponse]"));
}
var keyBase = "res:" + req.RawUrl;
var keySuffix = MimeTypes.GetExtension(req.ResponseContentType);
var modifiers = "";
if (req.ResponseContentType == MimeTypes.Json)
{
string jsonp = req.GetJsonpCallback();
if (jsonp != null)
{
modifiers = "jsonp:" + jsonp.SafeVarName();
}
}
if (VaryByUser)
{
modifiers += (modifiers.Length > 0 ? "+" : "") + "user:"******"+" : "") + "role:" + role;
}
}
}
}
}
if (VaryByHeaders != null && VaryByHeaders.Length > 0)
{
foreach (var header in VaryByHeaders)
{
var value = req.GetHeader(header);
if (!string.IsNullOrEmpty(value))
{
modifiers += (modifiers.Length > 0 ? "+" : "") + $"{header}:{value}";
}
}
}
if (modifiers.Length > 0)
{
keySuffix += "+" + modifiers;
}
var cacheInfo = new CacheInfo
{
KeyBase = keyBase,
KeyModifiers = keySuffix,
ExpiresIn = Duration > 0 ? TimeSpan.FromSeconds(Duration) : (TimeSpan?)null,
MaxAge = MaxAge >= 0 ? TimeSpan.FromSeconds(MaxAge) : (TimeSpan?)null,
CacheControl = CacheControl,
VaryByUser = VaryByUser,
LocalCache = LocalCache,
NoCompression = NoCompression,
};
if (req.HandleValidCache(cacheInfo))
{
return;
}
req.Items[Keywords.CacheInfo] = cacheInfo;
}
public HttpResult(IVirtualFile fileResponse, bool asAttachment)
: this(fileResponse, MimeTypes.GetMimeType(fileResponse.Name), asAttachment)
{
}
public static string GetCacheKeyForSerialized(string cacheKey, string mimeType, string modifiers)
{
return(cacheKey + MimeTypes.GetExtension(mimeType) + modifiers);
}
