| public static ConvertSampleRate ( TSSampleRate sampleRate ) : int | ||
| sampleRate | TSSampleRate | |
| return | int | |
public void Scan()
{
FileStream fileStream = null;
BinaryReader fileReader = null;
try
{
#if DEBUG
Debug.WriteLine(string.Format(
"Scanning {0}...", Name));
#endif
Streams.Clear();
fileStream = File.OpenRead(FileInfo.FullName);
fileReader = new BinaryReader(fileStream);
byte[] data = new byte[fileStream.Length];
fileReader.Read(data, 0, data.Length);
byte[] fileType = new byte[8];
Array.Copy(data, 0, fileType, 0, fileType.Length);
FileType = ASCIIEncoding.ASCII.GetString(fileType);
if (FileType != "HDMV0100" &&
FileType != "HDMV0200")
{
throw new Exception(string.Format(
"Clip info file {0} has an unknown file type {1}.",
FileInfo.Name, FileType));
}
#if DEBUG
Debug.WriteLine(string.Format(
"\tFileType: {0}", FileType));
#endif
int clipIndex =
((int)data[12] << 24) +
((int)data[13] << 16) +
((int)data[14] << 8) +
((int)data[15]);
int clipLength =
((int)data[clipIndex] << 24) +
((int)data[clipIndex + 1] << 16) +
((int)data[clipIndex + 2] << 8) +
((int)data[clipIndex + 3]);
byte[] clipData = new byte[clipLength];
Array.Copy(data, clipIndex + 4, clipData, 0, clipData.Length);
int streamCount = clipData[8];
#if DEBUG
Debug.WriteLine(string.Format(
"\tStreamCount: {0}", streamCount));
#endif
int streamOffset = 10;
for (int streamIndex = 0;
streamIndex < streamCount;
streamIndex++)
{
TSStream stream = null;
ushort PID = (ushort)
((clipData[streamOffset] << 8) +
clipData[streamOffset + 1]);
streamOffset += 2;
TSStreamType streamType = (TSStreamType)
clipData[streamOffset + 1];
switch (streamType)
{
case TSStreamType.MVC_VIDEO:
// TODO
break;
case TSStreamType.AVC_VIDEO:
case TSStreamType.MPEG1_VIDEO:
case TSStreamType.MPEG2_VIDEO:
case TSStreamType.VC1_VIDEO:
{
TSVideoFormat videoFormat = (TSVideoFormat)
(clipData[streamOffset + 2] >> 4);
TSFrameRate frameRate = (TSFrameRate)
(clipData[streamOffset + 2] & 0xF);
TSAspectRatio aspectRatio = (TSAspectRatio)
(clipData[streamOffset + 3] >> 4);
stream = new TSVideoStream();
((TSVideoStream)stream).VideoFormat = videoFormat;
((TSVideoStream)stream).AspectRatio = aspectRatio;
((TSVideoStream)stream).FrameRate = frameRate;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
PID,
streamType,
videoFormat,
frameRate,
aspectRatio));
#endif
}
break;
case TSStreamType.AC3_AUDIO:
case TSStreamType.AC3_PLUS_AUDIO:
case TSStreamType.AC3_PLUS_SECONDARY_AUDIO:
case TSStreamType.AC3_TRUE_HD_AUDIO:
case TSStreamType.DTS_AUDIO:
case TSStreamType.DTS_HD_AUDIO:
case TSStreamType.DTS_HD_MASTER_AUDIO:
case TSStreamType.DTS_HD_SECONDARY_AUDIO:
case TSStreamType.LPCM_AUDIO:
case TSStreamType.MPEG1_AUDIO:
case TSStreamType.MPEG2_AUDIO:
{
byte[] languageBytes = new byte[3];
Array.Copy(clipData, streamOffset + 3,
languageBytes, 0, languageBytes.Length);
string languageCode =
ASCIIEncoding.ASCII.GetString(languageBytes);
TSChannelLayout channelLayout = (TSChannelLayout)
(clipData[streamOffset + 2] >> 4);
TSSampleRate sampleRate = (TSSampleRate)
(clipData[streamOffset + 2] & 0xF);
stream = new TSAudioStream();
((TSAudioStream)stream).LanguageCode = languageCode;
((TSAudioStream)stream).ChannelLayout = channelLayout;
((TSAudioStream)stream).SampleRate = TSAudioStream.ConvertSampleRate(sampleRate);
((TSAudioStream)stream).LanguageCode = languageCode;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
PID,
streamType,
languageCode,
channelLayout,
sampleRate));
#endif
}
break;
case TSStreamType.INTERACTIVE_GRAPHICS:
case TSStreamType.PRESENTATION_GRAPHICS:
{
byte[] languageBytes = new byte[3];
Array.Copy(clipData, streamOffset + 2,
languageBytes, 0, languageBytes.Length);
string languageCode =
ASCIIEncoding.ASCII.GetString(languageBytes);
stream = new TSGraphicsStream();
stream.LanguageCode = languageCode;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
PID,
streamType,
languageCode));
#endif
}
break;
case TSStreamType.SUBTITLE:
{
byte[] languageBytes = new byte[3];
Array.Copy(clipData, streamOffset + 3,
languageBytes, 0, languageBytes.Length);
string languageCode =
ASCIIEncoding.ASCII.GetString(languageBytes);
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
PID,
streamType,
languageCode));
#endif
stream = new TSTextStream();
stream.LanguageCode = languageCode;
}
break;
}
if (stream != null)
{
stream.PID = PID;
stream.StreamType = streamType;
Streams.Add(PID, stream);
}
streamOffset += clipData[streamOffset] + 1;
}
IsValid = true;
}
finally
{
if (fileReader != null)
{
fileReader.Close();
}
if (fileStream != null)
{
fileStream.Close();
}
}
}
protected TSStream CreatePlaylistStream(byte[] data, ref int pos)
{
TSStream stream = null;
int start = pos;
int headerLength = data[pos++];
int headerPos = pos;
int headerType = data[pos++];
int pid = 0;
int subpathid = 0;
int subclipid = 0;
switch (headerType)
{
case 1:
pid = ReadInt16(data, ref pos);
break;
case 2:
subpathid = data[pos++];
subclipid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
case 3:
subpathid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
case 4:
subpathid = data[pos++];
subclipid = data[pos++];
pid = ReadInt16(data, ref pos);
break;
default:
break;
}
pos = headerPos + headerLength;
int streamLength = data[pos++];
int streamPos = pos;
var streamType = (TSStreamType)data[pos++];
switch (streamType)
{
case TSStreamType.MVC_VIDEO:
// TODO
break;
case TSStreamType.AVC_VIDEO:
case TSStreamType.MPEG1_VIDEO:
case TSStreamType.MPEG2_VIDEO:
case TSStreamType.VC1_VIDEO:
var videoFormat = (TSVideoFormat)
(data[pos] >> 4);
var frameRate = (TSFrameRate)
(data[pos] & 0xF);
var aspectRatio = (TSAspectRatio)
(data[pos + 1] >> 4);
stream = new TSVideoStream();
((TSVideoStream)stream).VideoFormat = videoFormat;
((TSVideoStream)stream).AspectRatio = aspectRatio;
((TSVideoStream)stream).FrameRate = frameRate;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
pid,
streamType,
videoFormat,
frameRate,
aspectRatio));
#endif
break;
case TSStreamType.AC3_AUDIO:
case TSStreamType.AC3_PLUS_AUDIO:
case TSStreamType.AC3_PLUS_SECONDARY_AUDIO:
case TSStreamType.AC3_TRUE_HD_AUDIO:
case TSStreamType.DTS_AUDIO:
case TSStreamType.DTS_HD_AUDIO:
case TSStreamType.DTS_HD_MASTER_AUDIO:
case TSStreamType.DTS_HD_SECONDARY_AUDIO:
case TSStreamType.LPCM_AUDIO:
case TSStreamType.MPEG1_AUDIO:
case TSStreamType.MPEG2_AUDIO:
int audioFormat = ReadByte(data, ref pos);
var channelLayout = (TSChannelLayout)
(audioFormat >> 4);
var sampleRate = (TSSampleRate)
(audioFormat & 0xF);
string audioLanguage = ReadString(data, 3, ref pos);
stream = new TSAudioStream();
((TSAudioStream)stream).ChannelLayout = channelLayout;
((TSAudioStream)stream).SampleRate = TSAudioStream.ConvertSampleRate(sampleRate);
((TSAudioStream)stream).LanguageCode = audioLanguage;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2} {3} {4}",
pid,
streamType,
audioLanguage,
channelLayout,
sampleRate));
#endif
break;
case TSStreamType.INTERACTIVE_GRAPHICS:
case TSStreamType.PRESENTATION_GRAPHICS:
string graphicsLanguage = ReadString(data, 3, ref pos);
stream = new TSGraphicsStream();
((TSGraphicsStream)stream).LanguageCode = graphicsLanguage;
if (data[pos] != 0)
{
}
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
pid,
streamType,
graphicsLanguage));
#endif
break;
case TSStreamType.SUBTITLE:
int code = ReadByte(data, ref pos); // TODO
string textLanguage = ReadString(data, 3, ref pos);
stream = new TSTextStream();
((TSTextStream)stream).LanguageCode = textLanguage;
#if DEBUG
Debug.WriteLine(string.Format(
"\t{0} {1} {2}",
pid,
streamType,
textLanguage));
#endif
break;
default:
break;
}
pos = streamPos + streamLength;
if (stream != null)
{
stream.PID = (ushort)pid;
stream.StreamType = streamType;
}
return(stream);
}