// DLL_PUBLIC HRESULT ADVOpenFile(char* fileName, AdvLib::AdvFileInfo* fileInfo); public static extern int ADVOpenFile(string fileName, [In, Out] ref AdvFileInfo fileInfo);
private AstroDigitalVideoStream(string fileName, ref AdvFileMetadataInfo fileMetadataInfo, ref GeoLocationInfo geoLocation)
{
CheckAdvFileFormat(fileName, ref fileMetadataInfo, ref geoLocation);
m_FileName = fileName;
var fileInfo = new AdvFileInfo();
TangraCore.ADVOpenFile(fileName, ref fileInfo);
m_FirstFrame = 0;
m_CountFrames = fileInfo.CountFrames;
m_BitPix = fileInfo.Bpp;
m_Width = fileInfo.Width;
m_Height = fileInfo.Height;
m_Aav16NormVal = fileInfo.Aav16NormVal;
m_FrameRate = fileInfo.FrameRate;
// Get the last frame in the video and read the Almanac Offset and Almanac Status so they are applied
// to the frames that didn't have Almanac Status = Updated
if (m_CountFrames > 0)
{
GetPixelmap(m_FirstFrame + m_CountFrames - 1);
m_AlamanacOffsetLastFrameIsGood = m_CurrentFrameInfo.AlmanacStatusIsGood;
m_AlmanacOffsetLastFrame = m_CurrentFrameInfo.GetSignedAlamancOffset();
}
else
{
m_AlamanacOffsetLastFrameIsGood = false;
m_AlmanacOffsetLastFrame = 0;
}
m_Engine = fileMetadataInfo.Engine;
m_CameraModel = fileMetadataInfo.Camera;
m_UsesNtpTimestamps = fileMetadataInfo.HasNTPTimeStamps;
if (m_Engine == "AAV")
{
m_VideoStandard = GetFileTag("NATIVE-VIDEO-STANDARD");
double.TryParse(GetFileTag("NATIVE-FRAME-RATE"), out m_NativeFrameRate);
int.TryParse(GetFileTag("OSD-FIRST-LINE"), out m_OsdFirstLine);
int.TryParse(GetFileTag("OSD-LAST-LINE"), out m_OsdLastLine);
if (m_OsdLastLine > m_Height) m_OsdLastLine = m_Height;
if (m_OsdFirstLine < 0) m_OsdFirstLine = 0;
m_IntegratedAAVFrames = -1;
if (double.TryParse(GetFileTag("EFFECTIVE-FRAME-RATE"), out m_EffectiveFrameRate) && m_NativeFrameRate != 0)
{
m_IntegratedAAVFrames = (int)Math.Round(m_NativeFrameRate / m_EffectiveFrameRate);
}
int.TryParse(GetFileTag("FRAME-STACKING-RATE"), out m_StackingRate);
if (m_StackingRate == 1) m_StackingRate = 0; // Video stacked at x1 is a non-stacked video
}
else
{
m_OsdFirstLine = 0;
m_OsdLastLine = 0;
}
m_OcrDataAvailable = null;
}