private ISegment CreateStreamSegment(M3U8Parser.M3U8Uri uri, CancellationToken cancellationToken)
{
SubStreamSegment segment = new SubStreamSegment(_parser.ResolveUrl(uri.Uri), _parser.BaseUrl);
if (_mediaSequence.HasValue)
{
SubStreamSegment subStreamSegment = segment;
long? nullable1 = _mediaSequence;
long num = _segmentIndex;
long? nullable2 = nullable1.GetValueOrDefault() + num;
subStreamSegment.MediaSequence = nullable2;
}
++_segmentIndex;
M3U8TagInstance[] m3U8TagInstanceArray = uri.Tags;
if (m3U8TagInstanceArray == null || 0 == m3U8TagInstanceArray.Length)
{
return(segment);
}
ExtinfTagInstance extinfTagInstance = M3U8Tags.ExtXInf.Find(m3U8TagInstanceArray);
if (null != extinfTagInstance)
{
segment.Duration = TimeSpan.FromSeconds((double)extinfTagInstance.Duration);
}
ByterangeTagInstance byteRange = M3U8Tags.ExtXByteRange.Find(m3U8TagInstanceArray);
if (null != byteRange)
{
HandleByteRange(segment, byteRange);
}
IEnumerable <ExtKeyTagInstance> all = M3U8Tags.ExtXKey.FindAll(m3U8TagInstanceArray);
if (null != all)
{
HandleKey(segment, all, cancellationToken);
}
return(segment);
}
private async Task <IDictionary <long, Program.Program> > LoadAsync(IWebReader webReader, M3U8Parser parser, CancellationToken cancellationToken)
{
var audioStreams = new Dictionary <string, MediaGroup>();
foreach (var m3U8TagInstance in parser.GlobalTags)
{
if (M3U8Tags.ExtXMedia != m3U8TagInstance.Tag)
{
continue;
}
try
{
if (null != m3U8TagInstance.Attribute(ExtMediaSupport.AttrType, "AUDIO"))
{
AddMedia(parser.BaseUrl, m3U8TagInstance, audioStreams);
}
}
catch (NullReferenceException)
{
;
}
}
var programs = new Dictionary <long, Program.Program>();
var hasSegments = false;
foreach (var m3U8Uri in parser.Playlist)
{
if (m3U8Uri.Tags == null || m3U8Uri.Tags.Length < 1)
{
hasSegments = true;
}
else
{
var streamInfTagInstance = M3U8Tags.ExtXStreamInf.Find(m3U8Uri.Tags);
var programId = long.MinValue;
MediaGroup mediaGroup = null;
if (null != streamInfTagInstance)
{
var attributeValueInstance1 = streamInfTagInstance.Attribute(ExtStreamInfSupport.AttrProgramId);
if (null != attributeValueInstance1)
{
programId = attributeValueInstance1.Value;
}
var key = streamInfTagInstance.AttributeObject(ExtStreamInfSupport.AttrAudio);
if (null != key)
{
audioStreams.TryGetValue(key, out mediaGroup);
}
var uri = parser.ResolveUrl(m3U8Uri.Uri);
var attributeValueInstance2 = streamInfTagInstance.Attribute(ExtStreamInfSupport.AttrBandwidth);
var attributeInstance = streamInfTagInstance.AttributeInstance <ResolutionAttributeInstance>(ExtStreamInfSupport.AttrResolution);
var baseUrl = parser.BaseUrl;
var program = GetProgram(programs, programId, baseUrl);
var hlsProgramStream = _programStreamFactory.Create(new [] { uri }, webReader);
var playlistSubProgram1 = new PlaylistSubProgram(program, hlsProgramStream);
playlistSubProgram1.Bandwidth = attributeValueInstance2?.Value ?? 0L;
playlistSubProgram1.Playlist = uri;
playlistSubProgram1.AudioGroup = mediaGroup;
var playlistSubProgram2 = playlistSubProgram1;
if (null != attributeInstance)
{
playlistSubProgram2.Width = attributeInstance.X;
playlistSubProgram2.Height = attributeInstance.Y;
}
program.SubPrograms.Add(playlistSubProgram2);
}
else
{
hasSegments = true;
}
}
}
if (hasSegments)
{
var program = GetProgram(programs, long.MinValue, parser.BaseUrl);
var hlsProgramStream = _programStreamFactory.Create(new [] { webReader.RequestUri }, webReader);
await hlsProgramStream.SetParserAsync(parser, cancellationToken).ConfigureAwait(false);
var subProgram = new PlaylistSubProgram(program, hlsProgramStream);
program.SubPrograms.Add(subProgram);
}
return(programs);
}
