/// <summary>
/// Creates MediaStreamInfo from XmlDocument
/// </summary>
/// <param name="xmlDoc">XmlDocument containing data for creating MediaStreamInfo object.</param>
/// <returns>list of MediaStreamInfo objects</returns>
public static IList<MediaStreamInfo> CreateFromXml(XmlDocument xmlDoc) {
IList<MediaStreamInfo> mediaStreamInfos = new List<MediaStreamInfo>();
if (xmlDoc.DocumentElement != null) {
XmlNodeList streamNodes = xmlDoc.DocumentElement.SelectNodes(STREAMS_NODE + "/" + STREAM_NODE);
if (streamNodes != null) {
foreach (XmlNode streamNode in streamNodes) {
if (streamNode != null && streamNode.Attributes != null) {
int index = 0;
if (streamNode.Attributes[INDEX] != null) {
try {
index = Int32.Parse(streamNode.Attributes[INDEX].InnerText, CultureInfo.InvariantCulture);
} catch (Exception) {
index = 0;
}
}
var codec = streamNode.Attributes[CODEC_NAME] != null ? streamNode.Attributes[CODEC_NAME].InnerText : null;
MediaStreamInfo.MediaStreamType type = MediaStreamInfo.MediaStreamType.None;
if (streamNode.Attributes[CODEC_TYPE] != null) {
switch (streamNode.Attributes[CODEC_TYPE].InnerText) {
case CODEC_TYPE_VIDEO:
type = MediaStreamInfo.MediaStreamType.Video;
break;
case CODEC_TYPE_AUDIO:
type = MediaStreamInfo.MediaStreamType.Audio;
break;
}
}
if (codec != null && type != MediaStreamInfo.MediaStreamType.None) {
var mediaStreamInfo = new MediaStreamInfo(index, codec, type);
if (streamNode.Attributes[CODEC_LONG_NAME] != null) {
mediaStreamInfo.CodecLongName = streamNode.Attributes[CODEC_LONG_NAME].InnerText;
}
if (streamNode.Attributes[START_TIME] != null) {
try {
mediaStreamInfo.StartTime = Decimal.Parse(streamNode.Attributes[START_TIME].InnerText,
CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.StartTime = 0;
}
}
if (streamNode.Attributes[DURATION] != null) {
try {
mediaStreamInfo.Duration = Decimal.Parse(streamNode.Attributes[DURATION].InnerText,
CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.Duration = 0;
}
}
if (streamNode.Attributes[BIT_RATE] != null) {
try {
mediaStreamInfo.BitRate = Int32.Parse(streamNode.Attributes[BIT_RATE].InnerText,
CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.BitRate = 0;
}
}
//r_frame_rate="25/1" ||"50/2"
if (streamNode.Attributes[R_FRAME_RATE] != null) {
mediaStreamInfo.FrameRateStr = streamNode.Attributes[R_FRAME_RATE].InnerText;
}
// avg_frame_rate="1000/23" || "500/21"
if (streamNode.Attributes[AVG_FRAME_RATE] != null) {
mediaStreamInfo.AvgFrameRateStr = streamNode.Attributes[AVG_FRAME_RATE].InnerText;
}
#region Video specific
if (streamNode.Attributes[WIDTH] != null) {
try {
mediaStreamInfo.VideoWidth = Int32.Parse(streamNode.Attributes[WIDTH].InnerText, CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.VideoWidth = 0;
}
}
if (streamNode.Attributes[HEIGHT] != null) {
try {
mediaStreamInfo.VideoHeight = Int32.Parse(streamNode.Attributes[HEIGHT].InnerText,
CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.VideoHeight = 0;
}
}
// sample_aspect_ratio="136:135" || "1:1"
if (streamNode.Attributes[SAMPLE_ASPECT_RATIO] != null) {
mediaStreamInfo.VideoSampleAspectRatioStr = streamNode.Attributes[SAMPLE_ASPECT_RATIO].InnerText;
}
//display_aspect_ratio="16:9"
if (streamNode.Attributes[DISPLAY_ASPECT_RATIO] != null) {
mediaStreamInfo.VideoDisplayAspectRatioStr = streamNode.Attributes[DISPLAY_ASPECT_RATIO].InnerText;
}
#endregion
#region Audio specific
if (streamNode.Attributes[CHANNELS] != null) {
try {
mediaStreamInfo.AudioChannels = Int32.Parse(streamNode.Attributes[CHANNELS].InnerText);
} catch (Exception) {
mediaStreamInfo.AudioChannels = 0;
}
}
if (streamNode.Attributes[SAMPLE_RATE] != null) {
try {
mediaStreamInfo.AudioSampleRate = Int32.Parse(streamNode.Attributes[SAMPLE_RATE].InnerText,
CultureInfo.InvariantCulture);
} catch (Exception) {
mediaStreamInfo.AudioSampleRate = 0;
}
}
#endregion
mediaStreamInfos.Add(mediaStreamInfo);
}
}
}
}
}
return mediaStreamInfos;
}
/// <summary>
/// Adds stream
/// </summary>
/// <param name="stream">stream</param>
internal void AddStream(MediaStreamInfo stream) {
streams.Add(stream);
}
