private void OnCacheRebuilt(IDictionary <double, double> newCache, IAdaptiveAsset adaptiveAsset)
{
Asset asset = adaptiveAsset as Asset;
if (asset != null && newCache != null)
{
this.OnCacheRebuilt(new Tuple <IDictionary <double, double>, Asset>(newCache, asset));
}
}
private IDictionary <double, double> RetrieveAssetCache(IAdaptiveAsset asset, bool removeExistingCache)
{
double assetDuration = asset.DurationInSeconds;
string assetUri = asset.Source.ToString().ToUpperInvariant();
int manifestIndex = assetUri.LastIndexOf("/MANIFEST");
string cacheKey = assetUri.Substring(0, assetUri.Length - (assetUri.Length - manifestIndex));
if (this.assetsCacheIndex.ContainsKey(cacheKey))
{
if (removeExistingCache)
{
this.assetsCacheIndex.Remove(cacheKey);
}
else
{
IDictionary <double, double> currentCache = this.assetsCacheIndex[cacheKey].Cache;
// if (asset == this.assetsCacheIndex[cacheKey].Asset && currentCache.Count > 0)
if (currentCache.Count > 0)
{
return(currentCache);
}
}
}
IEnumerable <string> cachedKeys = this.cache.CacheItems.Keys.Where(key => key.ToUpperInvariant().StartsWith(cacheKey) && key.ToUpperInvariant().Contains("/FRAGMENTS(VIDEO="));
List <double> timecodes = new List <double>();
foreach (string key in cachedKeys)
{
double?timecode = this.ExtractTimecode(key, asset.StartPosition);
if (timecode.HasValue && !timecodes.Contains(timecode.Value))
{
timecodes.Add(timecode.Value);
}
}
timecodes.Sort();
IDictionary <double, double> cacheSnapshot = GenerateCacheSnapshot(timecodes, assetDuration);
this.assetsCacheIndex.Add(cacheKey, new CacheIndex(timecodes, cacheSnapshot, asset));
return(cacheSnapshot);
}
public IDictionary <double, double> RetrieveAssetCache(IAdaptiveAsset adaptiveAsset)
{
return(null);
}
public IDictionary <double, double> RetrieveAssetCache(IAdaptiveAsset adaptiveAsset)
{
throw new NotImplementedException();
}
public IDictionary <double, double> RetrieveAssetCache(IAdaptiveAsset asset)
{
return(this.RetrieveAssetCache(asset, false));
}
public CacheIndex(List <double> timecodes, IDictionary <double, double> cache, IAdaptiveAsset asset)
{
this.Timecodes = timecodes;
this.Cache = cache;
this.Asset = asset;
}
