private void HandleMasterPlaylistLine(string line)
{
if (_isMasterPlaylist.HasValue && !_isMasterPlaylist.Value)
{
throw new HlsException("Unexpected tag in master playlist.");
}
if (!_isMasterPlaylist.HasValue)
{
_isMasterPlaylist = true;
_masterPlaylist = new HlsMasterPlaylist {
Version = _version, IsIndependentSegments = _isIndependentSegments, Start = _start
};
}
if (line[0] != '#')
{
// A URI line for a stream should be the only case when this happens.
_stream.Uri = new Uri(_baseUri, line);
_stream = null;
return;
}
string[] parts = line.Split(':');
string tag = parts[0].Substring(1);
string value = (parts.Length > 1 ? parts[1] : null);
switch (tag)
{
case "EXT-X-MEDIA":
IReadOnlyDictionary <string, string> mediaAttributes = AttributeList.Parse(value);
HlsMedia media = new HlsMedia
{
Type = AttributeValueUtils.ParseEnum <HlsMediaType>(mediaAttributes["TYPE"]),
Uri = AttributeValueUtils.GetUriOrNull(mediaAttributes, _baseUri, "URI"),
GroupId = AttributeValueUtils.ParseQuotedString(mediaAttributes["GROUP-ID"]),
Language = AttributeValueUtils.GetStringOrNull(mediaAttributes, "LANGUAGE"),
AssocLanguage = AttributeValueUtils.GetStringOrNull(mediaAttributes, "ASSOC-LANGUAGE"),
Name = AttributeValueUtils.ParseQuotedString(mediaAttributes["NAME"]),
Default = (AttributeValueUtils.GetStringOrNull(mediaAttributes, "DEFAULT") == "YES"),
Autoselect = (AttributeValueUtils.GetStringOrNull(mediaAttributes, "AUTOSELECT") == "YES"),
Forced = (AttributeValueUtils.GetStringOrNull(mediaAttributes, "FORCED") == "YES"),
InstreamId = AttributeValueUtils.GetStringOrNull(mediaAttributes, "INSTREAM-ID"),
Characteristics = AttributeValueUtils.GetStringOrNull(mediaAttributes, "CHARACTERISTICS"),
Channels = AttributeValueUtils.GetStringOrNull(mediaAttributes, "CHANNELS")
};
_masterPlaylist._mediae.Add(media);
break;
case "EXT-X-STREAM-INF":
IReadOnlyDictionary <string, string> streamAttributes = AttributeList.Parse(value);
_stream = new HlsStream
{
Bandwidth = (int)AttributeValueUtils.ParseDecimalInteger(streamAttributes["BANDWIDTH"]),
AverageBandwidth = (int?)AttributeValueUtils.GetDecimalIntegerOrNull(streamAttributes, "AVERAGE-BANDWIDTH"),
Codecs = AttributeValueUtils.GetStringOrNull(streamAttributes, "CODECS"),
Resolution = AttributeValueUtils.GetResolutionOrNull(streamAttributes, "RESOLUTION"),
FrameRate = AttributeValueUtils.GetFloatOrNull(streamAttributes, "FRAME-RATE"),
HdcpLevel = AttributeValueUtils.GetRawOrNull(streamAttributes, "HDCP-LEVEL"),
Audio = AttributeValueUtils.GetStringOrNull(streamAttributes, "AUDIO"),
Video = AttributeValueUtils.GetStringOrNull(streamAttributes, "VIDEO"),
Subtitles = AttributeValueUtils.GetStringOrNull(streamAttributes, "SUBTITLES"),
//TODO ClosedCaptions =
};
_masterPlaylist._streams.Add(_stream);
break;
case "EXT-X-I-FRAME-STREAM-INF":
IReadOnlyDictionary <string, string> iFrameStreamAttributes = AttributeList.Parse(value);
HlsIFrameStream iFrameStream = new HlsIFrameStream
{
Bandwidth = (int)AttributeValueUtils.ParseDecimalInteger(iFrameStreamAttributes["BANDWIDTH"]),
AverageBandwidth = (int?)AttributeValueUtils.GetDecimalIntegerOrNull(iFrameStreamAttributes, "AVERAGE-BANDWIDTH"),
Codecs = AttributeValueUtils.GetStringOrNull(iFrameStreamAttributes, "CODECS"),
Resolution = AttributeValueUtils.GetResolutionOrNull(iFrameStreamAttributes, "RESOLUTION"),
HdcpLevel = AttributeValueUtils.GetRawOrNull(iFrameStreamAttributes, "HDCP-LEVEL"),
Video = AttributeValueUtils.GetStringOrNull(iFrameStreamAttributes, "VIDEO"),
Uri = AttributeValueUtils.GetUri(iFrameStreamAttributes, _baseUri, "URI")
};
_masterPlaylist._iFrameStreams.Add(iFrameStream);
break;
case "EXT-X-SESSION-DATA":
IReadOnlyDictionary <string, string> sessionDataAttributes = AttributeList.Parse(value);
HlsSessionData sessionData = new HlsSessionData
{
DataId = sessionDataAttributes["DATA-ID"],
Value = (sessionDataAttributes.ContainsKey("VALUE") ? sessionDataAttributes["VALUE"] : null),
Uri = (sessionDataAttributes.ContainsKey("URI") ? new Uri(_baseUri, sessionDataAttributes["URI"]) : null),
Language = (sessionDataAttributes.ContainsKey("LANGUAGE") ? sessionDataAttributes["LANGUAGE"] : null),
};
_masterPlaylist._sessionDatas.Add(sessionData);
break;
case "EXT-X-SESSION-KEY":
break;
}
}
private void HandleMediaPlaylistLine(string line)
{
if (_isMasterPlaylist.HasValue && _isMasterPlaylist.Value)
{
throw new HlsException("Unexpected tag in media playlist.");
}
if (!_isMasterPlaylist.HasValue)
{
_isMasterPlaylist = false;
_mediaPlaylist = new HlsMediaPlaylist {
Version = _version, IsIndependentSegments = _isIndependentSegments, Start = _start
};
}
if (line[0] != '#')
{
// A URI line for a media segment should be the only case when this happens.
_mediaSegment.Uri = new Uri(_baseUri, line);
_mediaSegment = null;
return;
}
int firstColonIndex = line.IndexOf(':');
string tag = (firstColonIndex > -1 ? line.Substring(1, firstColonIndex - 1) : line.Substring(1));
string value = (firstColonIndex > -1 ? line.Substring(firstColonIndex + 1, line.Length - firstColonIndex - 1) : null);
switch (tag)
{
// Media segment tags.
case "EXTINF":
int commaIndex = value.IndexOf(',');
_mediaSegment = new HlsMediaSegment
{
SequenceNumber = _mediaPlaylist.MediaSequence + _mediaPlaylist._mediaSegments.Count,
Duration = Convert.ToSingle((commaIndex != -1 ? value.Substring(0, commaIndex) : value)),
Title = (commaIndex != -1 ? value.Substring(commaIndex + 1) : null),
Key = _mediaSegmentKey
};
_mediaPlaylist._mediaSegments.Add(_mediaSegment);
break;
case "EXT-X-BYTERANGE":
_mediaSegment.ByteRange = value;
break;
case "EXT-X-DISCONTINUITY":
_mediaSegment.HasDiscontinuityAfter = true;
break;
case "EXT-X-KEY":
IReadOnlyDictionary <string, string> keyAttributes = AttributeList.Parse(value);
_mediaSegmentKey = new HlsMediaSegmentKey
{
Method = AttributeValueUtils.ParseEnum <HlsKeyMethod>(keyAttributes["METHOD"]),
Uri = AttributeValueUtils.GetUriOrNull(keyAttributes, _baseUri, "URI"),
KeyFormat = (AttributeValueUtils.GetStringOrNull(keyAttributes, "KEYFORMAT") ?? "identity"),
};
break;
case "EXT-X-MAP":
break;
case "EXT-X-PROGRAM-DATE-TIME":
_mediaSegment.ProgramDateTime = value;
break;
case "EXT-X-ALLOW-CACHE":
break;
case "EXT-X-DATERANGE":
break;
// Media playlist tags.
case "EXT-X-TARGETDURATION":
_mediaPlaylist.TargetDuration = Convert.ToInt32(value);
break;
case "EXT-X-MEDIA-SEQUENCE":
_mediaPlaylist.MediaSequence = Convert.ToInt32(value);
break;
case "EXT-X-DISCONTINUITY-SEQUENCE":
_mediaPlaylist.DiscontinuitySequence = Convert.ToInt32(value);
break;
case "EXT-X-ENDLIST":
_mediaSegment = null;
HasEndlist = true;
break;
case "EXT-X-PLAYLIST-TYPE":
_mediaPlaylist.PlaylistType = value;
break;
case "EXT-X-I-FRAMES-ONLY":
_mediaPlaylist.IsIFramesOnly = true;
break;
}
}