public void Write(FLVTag tag)
{
if (tag == null || tag.Data == null || tag.Data.Length == 0)
{
return;
}
if (tag.Filter)
{
throw new InvalidOperationException("This media encrypted with Adobe Access DRM. Not supported. Sorry. :`(");
}
lock (lock4write) {
if (!FLVHeaderWritten)
{
WriteFlvHeader();
}
if (tag is FLVTagAudio)
{
var tagAudio = tag as FLVTagAudio;
if (!AAC_HeaderWritten && tagAudio.IsAACSequenceHeader)
{
AAC_HeaderWritten = true;
}
else if (AAC_HeaderWritten && tagAudio.IsAACSequenceHeader)
{
return;
}
SizeAudio += tag.DataSize;
}
else if (tag is FLVTagVideo)
{
var tagVideo = tag as FLVTagVideo;
if (!AVC_HeaderWritten && tagVideo.CodecID == FLVTagVideo.Codec.AVC && tagVideo.AvcPacketType == FLVTagVideo.AVCPacket.SEQUENCE_HEADER)
{
AVC_HeaderWritten = true;
}
else if (AVC_HeaderWritten && tagVideo.CodecID == FLVTagVideo.Codec.AVC && tagVideo.AvcPacketType == FLVTagVideo.AVCPacket.SEQUENCE_HEADER)
{
return;
}
SizeVideo += tag.DataSize;
}
HDSDumper.FixTimestamp(DecoderState, tag);
if (LastTimestamp < tag.Timestamp)
{
LastTimestamp = tag.Timestamp;
}
WriteData(tag.GetBytes());
Frames++;
}
}
public void GetLastTimestampFromExistingFile()
{
LastTimestamp = 0;
string sFile = Program.outDir + outFile;
if (play || Program.redir2Prog != null || usePipe || !File.Exists(sFile))
{
return;
}
int b1, b2, b3, b4;
using (FileStream fs = new FileStream(sFile, FileMode.Open)) {
if (fs.Length > 600)
{
fs.Position = fs.Length - 4;
b1 = fs.ReadByte();
b2 = fs.ReadByte();
b3 = fs.ReadByte();
b4 = fs.ReadByte();
int blockLength = b2 * 256 * 256 + b3 * 256 + b4;
if (fs.Length - blockLength > 600)
{
fs.Position = fs.Length - blockLength;
b1 = fs.ReadByte();
b2 = fs.ReadByte();
b3 = fs.ReadByte();
LastTimestamp = (uint)(b1 * 256 * 256 + b2 * 256 + b3);
FLVHeaderWritten = true;
Filesize = (uint)fs.Length;
//this.FLVContinue = true;
Program.Message("<c:DarkYellow>Continue downloading with exiting file from timestamp: " + HDSDumper.FormatTS(LastTimestamp, true));
if (DecoderState == null)
{
DecoderState = new DecoderLastState();
}
DecoderState.baseTS = 0;
}
}
}
}
