public ISMCFile(Stream fs)
{
StreamReader sr = new StreamReader(fs);
XmlReader reader = XmlReader.Create(sr);
while (reader.Read())
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
// A StreamIndex may include several tracks, all with the same contents but at different bit rates.
if (reader.Name == "StreamIndex")
{
StreamIndex idx = new StreamIndex();
idx.Type = reader.GetAttribute("Type");
idx.Subtype = reader.GetAttribute("Subtype");
idx.Chuncks = reader.GetAttribute("Chuncks");
idx.Url = reader.GetAttribute("Url");
indexs.Add(idx);
tmpLastIndex = idx;
}
// A QualityLevel within a StreamIndex is basically a track in MP4 parlance.
if (reader.Name == "QualityLevel")
{
QualityLevel ql = new QualityLevel();
ql.TrackID = reader.GetAttribute("Index");
ql.Bitrate = reader.GetAttribute("Bitrate");
ql.FourCC = reader.GetAttribute("FourCC");
ql.Width = reader.GetAttribute("Width");
ql.Height = reader.GetAttribute("Height");
if (ql.Width == null)
{
ql.Width = reader.GetAttribute("MaxWidth");
ql.Height = reader.GetAttribute("MaxHeight");
}
ql.SamplingRate = reader.GetAttribute("SamplingRate");
ql.Channels = reader.GetAttribute("Channels");
ql.BitsPerSample = reader.GetAttribute("BitsPerSample");
ql.AudioTag = reader.GetAttribute("AudioTag");
ql.CodecPrivateData = reader.GetAttribute("CodecPrivateData");
tmpLastIndex.QualityLevels.Add(ql);
}
if (reader.Name == "c")
{
c tc = new c();
tc.n = reader.GetAttribute("n");
tc.d = reader.GetAttribute("d");
tmpLastIndex.cs.Add(tc);
}
// Do some work here on the data.
//Console.WriteLine(reader.Name);
}
reader.Close();
}
/// <summary>
/// Constructor to use when reading an ismc file.
/// </summary>
/// <param name="inDir"></param>
/// <param name="inFileName"></param>
public ISMCFile(string inDir, string inFileName, List <ISMElement> ismElements) :
this(new FileStream(Path.Combine(new string[] { inDir, inFileName + ".ismc" }), FileMode.Open, FileAccess.Read, FileShare.Read))
{
ISMElement qElement = null;
List <uint> fragDurations = null;
strDir = inDir;
strFileName = inFileName;
//Console.WriteLine("OPENING: " + inDir + inFileName);
foreach (StreamIndex streamIndex in indexs)
{
fragDurations = new List <uint>(streamIndex.cs.Count);
streamIndex.cs.ForEach((c) => fragDurations.Add(uint.Parse(c.d)));
if (streamIndex.Type == "video")
{
if (streamIndex.QualityLevels.Count != ismElements.Count(el => el.FragmentType == MP4.FragmentType.Video))
{
throw new Exception("ISMCFile: count of quality levels for video does not match count of video elements in ISM file");
}
foreach (QualityLevel qlevel in streamIndex.QualityLevels)
{
qElement = ismElements.First(elmnt => (elmnt.TrackID == int.Parse(qlevel.TrackID) + 1) && (elmnt.FragmentType == MP4.FragmentType.Video));
qElement.Codec = new Codec(CodecTypes.Video);
qElement.Codec.PrivateCodecData = qlevel.CodecPrivateData;
qElement.FourCC = qlevel.FourCC;
qElement.Height = int.Parse(qlevel.Height);
qElement.Width = int.Parse(qlevel.Width);
qElement.FragmentDurations = fragDurations;
}
}
else if (streamIndex.Type == "audio")
{
if (streamIndex.QualityLevels.Count != ismElements.Count(el => el.FragmentType == MP4.FragmentType.Audio))
{
throw new Exception("ISMCFile: count of quality levels for audio does not match count of audio elements in ISM file");
}
// we assume there is only ONE audio quality level
qElement = ismElements.First(elmnt => (elmnt.FragmentType == MP4.FragmentType.Audio));
qElement.Codec = new Codec(CodecTypes.Audio);
QualityLevel qlevel = streamIndex.QualityLevels[0];
qElement.Codec.PrivateCodecData = "038080220000000480801640150020000001F4000001F4000580800511900000000680800102"; // qlevel.CodecPrivateData;
qElement.FourCC = qlevel.FourCC;
qElement.ChannelCount = int.Parse(qlevel.Channels);
qElement.SampleRate = int.Parse(qlevel.SamplingRate);
qElement.SampleSize = int.Parse(qlevel.BitsPerSample);
qElement.FragmentDurations = fragDurations;
}
}
}
public void Init(StreamReader inStream)
{
XmlReader reader = XmlReader.Create(inStream);
while (reader.Read())
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
if (reader.Name == "audio" || reader.Name == "video")
{
if ((tmpLastIndex == null) || (tmpLastIndex.Type != reader.Name))
{
StreamIndex idx = new StreamIndex();
idx.Type = reader.Name;
tmpLastIndex = idx;
indexs.Add(tmpLastIndex);
}
QualityLevel ql = new QualityLevel();
ql.Bitrate = reader.GetAttribute("systemBitrate");
tmpLastIndex.QualityLevels.Add(ql);
tmpLastQL = ql;
}
if (reader.Name == "param")
{
string name = reader.GetAttribute("name");
string vtype = reader.GetAttribute("valuetype");
string value = reader.GetAttribute("value");
switch (name)
{
case "systemBitrate": tmpLastQL.Bitrate = value; break;
case "trackID": tmpLastQL.TrackID = value; break;
case "FourCC": tmpLastQL.FourCC = value; break;
case "CodecPrivateData": tmpLastQL.CodecPrivateData = value; break;
case "AudioTag": tmpLastQL.AudioTag = value; break;
case "Channels": tmpLastQL.Channels = value; break;
case "SamplingRate": tmpLastQL.SamplingRate = value; break;
case "BitsPerSample": tmpLastQL.BitsPerSample = value; break;
// case "PacketSize": break;
case "SubType": tmpLastIndex.Subtype = value; break;
case "MaxWidth": tmpLastQL.Width = value; break;
case "MaxHeight": tmpLastQL.Height = value; break;
}
//QualityLevel ql = new QualityLevel();
//ql.Bitrate = reader.GetAttribute("Bitrate");
//ql.FourCC = reader.GetAttribute("FourCC");
//ql.Width = reader.GetAttribute("Width");
//ql.Height = reader.GetAttribute("Height");
//ql.CodecPrivateData = reader.GetAttribute("CodecPrivateData");
//tmpLastIndex.QualityLevels.Add(ql);
}
}
}
public ISMCFile(Stream fs)
{
StreamReader sr = new StreamReader(fs);
XmlReader reader = XmlReader.Create(sr);
while (reader.Read()) {
if (reader.NodeType != XmlNodeType.Element) continue;
// A StreamIndex may include several tracks, all with the same contents but at different bit rates.
if (reader.Name == "StreamIndex") {
StreamIndex idx = new StreamIndex();
idx.Type = reader.GetAttribute("Type");
idx.Subtype = reader.GetAttribute("Subtype");
idx.Chuncks = reader.GetAttribute("Chuncks");
idx.Url = reader.GetAttribute("Url");
indexs.Add(idx);
tmpLastIndex = idx;
}
// A QualityLevel within a StreamIndex is basically a track in MP4 parlance.
if (reader.Name == "QualityLevel") {
QualityLevel ql = new QualityLevel();
ql.TrackID = reader.GetAttribute("Index");
ql.Bitrate = reader.GetAttribute("Bitrate");
ql.FourCC = reader.GetAttribute("FourCC");
ql.Width = reader.GetAttribute("Width");
ql.Height = reader.GetAttribute("Height");
if (ql.Width == null) {
ql.Width = reader.GetAttribute("MaxWidth");
ql.Height = reader.GetAttribute("MaxHeight");
}
ql.SamplingRate = reader.GetAttribute("SamplingRate");
ql.Channels = reader.GetAttribute("Channels");
ql.BitsPerSample = reader.GetAttribute("BitsPerSample");
ql.AudioTag = reader.GetAttribute("AudioTag");
ql.CodecPrivateData = reader.GetAttribute("CodecPrivateData");
tmpLastIndex.QualityLevels.Add(ql);
}
if (reader.Name == "c") {
c tc = new c();
tc.n = reader.GetAttribute("n");
tc.d = reader.GetAttribute("d");
tmpLastIndex.cs.Add(tc);
}
// Do some work here on the data.
//Console.WriteLine(reader.Name);
}
reader.Close();
}
public void Init(StreamReader inStream)
{
XmlReader reader = XmlReader.Create(inStream);
while (reader.Read()) {
if (reader.NodeType != XmlNodeType.Element) continue;
if (reader.Name == "audio" || reader.Name == "video") {
if ((tmpLastIndex == null) || (tmpLastIndex.Type != reader.Name)) {
StreamIndex idx = new StreamIndex();
idx.Type = reader.Name;
tmpLastIndex = idx;
indexs.Add(tmpLastIndex);
}
QualityLevel ql = new QualityLevel();
ql.Bitrate = reader.GetAttribute("systemBitrate");
tmpLastIndex.QualityLevels.Add(ql);
tmpLastQL = ql;
}
if (reader.Name == "param") {
string name = reader.GetAttribute("name");
string vtype = reader.GetAttribute("valuetype");
string value = reader.GetAttribute("value");
switch (name) {
case "systemBitrate": tmpLastQL.Bitrate = value; break;
case "trackID": tmpLastQL.TrackID = value; break;
case "FourCC": tmpLastQL.FourCC = value; break;
case "CodecPrivateData": tmpLastQL.CodecPrivateData = value; break;
case "AudioTag": tmpLastQL.AudioTag = value; break;
case "Channels": tmpLastQL.Channels = value; break;
case "SamplingRate": tmpLastQL.SamplingRate = value; break;
case "BitsPerSample": tmpLastQL.BitsPerSample = value; break;
// case "PacketSize": break;
case "SubType": tmpLastIndex.Subtype = value; break;
case "MaxWidth": tmpLastQL.Width = value; break;
case "MaxHeight": tmpLastQL.Height = value; break;
}
//QualityLevel ql = new QualityLevel();
//ql.Bitrate = reader.GetAttribute("Bitrate");
//ql.FourCC = reader.GetAttribute("FourCC");
//ql.Width = reader.GetAttribute("Width");
//ql.Height = reader.GetAttribute("Height");
//ql.CodecPrivateData = reader.GetAttribute("CodecPrivateData");
//tmpLastIndex.QualityLevels.Add(ql);
}
}
}
