private void WriteFlvTag(FlvTagType type, int timestampMillis, int reserveBytes, FlvTagWriter tagWriter)
{
int tagStartOffset = bufferOffset;
int bodyLengthOffset = WriteFlvTagHeader(type, timestampMillis);
int bodyStartOffset = bufferOffset;
ReserveCapacity(reserveBytes);
tagWriter(buffer, ref bufferOffset);
WriteFlvTagBodyLengthAtOffset(bodyLengthOffset, bufferOffset - bodyStartOffset);
WriteFlvTagTotalLenth(bufferOffset - tagStartOffset);
}
public static FlvTag Create(FlvTagType type)
{
switch (type)
{
case FlvTagType.Audio:
return(new FlvAudioTag());
case FlvTagType.Video:
return(new FlvVideoTag());
case FlvTagType.ScriptData:
return(null);
default:
throw new NotSupportedException();
}
}
private int WriteFlvTagHeader(FlvTagType type, int timestampMillis)
{
ReserveCapacity(11);
buffer[bufferOffset++] = (byte)type;
int bodyLengthOffset = bufferOffset;
bufferOffset += 3;
buffer[bufferOffset++] = (byte)(timestampMillis >> 16);
buffer[bufferOffset++] = (byte)(timestampMillis >> 8);
buffer[bufferOffset++] = (byte)timestampMillis;
buffer[bufferOffset++] = (byte)(timestampMillis >> 24); // Most significant bits after other 24 bits.
buffer[bufferOffset++] = 0x00;
buffer[bufferOffset++] = 0x00;
buffer[bufferOffset++] = 0x00;
return(bodyLengthOffset);
}
