void TestStrings()
{
int hr;
int pulwActualSize;
int pulActualSize;
DvdTextStringType pType;
DvdTextStringType pwType;
int pulNumOfLangs;
int pulNumOfStrings;
int pLangCode;
DvdTextCharSet pbCharacterSet;
hr = m_idi2.GetDVDTextNumberOfLanguages(out pulNumOfLangs);
DsError.ThrowExceptionForHR(hr);
if (pulNumOfLangs > 0)
{
hr = m_idi2.GetDVDTextLanguageInfo(0, out pulNumOfStrings, out pLangCode, out pbCharacterSet);
DsError.ThrowExceptionForHR(hr);
StringBuilder sb1 = new StringBuilder(255, 255);
hr = m_idi2.GetDVDTextStringAsNative(0, pulNumOfStrings - 1, sb1, sb1.Capacity, out pulActualSize, out pType);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(sb1.Length > 0, "GetDVDTextStringAsNative");
StringBuilder sb2 = new StringBuilder(255, 255);
hr = m_idi2.GetDVDTextStringAsUnicode(0, pulNumOfStrings - 1, sb2, sb2.Capacity, out pulwActualSize, out pwType);
DsError.ThrowExceptionForHR(hr);
Debug.Assert(sb2.Length > 0, "GetDVDTextStringAsUnicode");
}
}
private void FetchDVDInformation_DS(string volumePath)
{
IDvdGraphBuilder dvdGraphBuilder =
Activator.CreateInstance(Type.GetTypeFromCLSID(Filters.DvdGraphBuilder, true))
as IDvdGraphBuilder;
AMDvdRenderStatus status;
dvdGraphBuilder.TryRenderDVD(volumePath, out status);
if (status.bDvdVolInvalid)
{
throw new COMException(ErrDvdVolume, -1);
}
object comobj = null;
dvdGraphBuilder.GetDvdInterface(typeof(IDvdInfo2).GUID, out comobj);
IDvdInfo2 dvdInfo = comobj as IDvdInfo2;
IDvdControl2 dvdControl = comobj as IDvdControl2;
dvdControl.SetOption(DvdOptionFlag.HMSFTimeCodeEvents, true); // use new HMSF timecode format
dvdControl.SetOption(DvdOptionFlag.ResetOnStop, false);
// Try getting the frame rate and the video size
dvdInfo.GetVMGAttributes(out _dma);
this.FrameRate = new FrameRate(_dma.VideoAttributes.frameRate);
this.VideoSize = new VSize(_dma.VideoAttributes.sourceResolutionX, _dma.VideoAttributes.sourceResolutionY);
// Try getting the DVD volume name.
// Stage 1: Get the number of available languages.
int numLangs = 0;
dvdInfo.GetDVDTextNumberOfLanguages(out numLangs);
if (numLangs > 0)
{
// Stage 2: Get string count for the first language.
int numStrings = 0;
int langId = 0;
DvdTextCharSet charSet = DvdTextCharSet.CharSet_Unicode;
dvdInfo.GetDVDTextLanguageInfo(0, out numStrings, out langId, out charSet);
// Stage 3: Iterate through the string collection and identify the volume name
for (int i = 0; i < numStrings; i++)
{
int maxSize = 4096;
StringBuilder sb = new StringBuilder(maxSize);
int txtSize = 0;
DvdTextStringType textType;
dvdInfo.GetDVDTextStringAsUnicode(0, i, sb, maxSize, out txtSize, out textType);
// Is this the volume name ?
if (textType == DvdTextStringType.DVD_General_Name)
{
// Volume name was found, so exit iteration.
_label = sb.ToString();
break;
}
}
}
// Try getting the titles, chapters and overall duration info
int numVolumes = 0, volumeNumber = 0, numTitles = 0;
DvdDiscSide sideInfo;
dvdInfo.GetDVDVolumeInfo(out numVolumes, out volumeNumber, out sideInfo, out numTitles);
for (int i = 1; i <= numTitles; i++)
{
int numChapters = 0;
try
{
DvdMenuAttributes menuAttr;
DvdTitleAttributes titleAttr = new DvdTitleAttributes();
if (i == 1)
{
dvdInfo.GetTitleAttributes(i, out menuAttr, titleAttr);
for (int j = 0; j < titleAttr.ulNumberOfSubpictureStreams; j++)
{
_subtitles.Add(titleAttr.SubpictureAttributes[j]);
}
}
dvdInfo.GetNumberOfChapters(i, out numChapters);
_chaptersPerTitle.Add(numChapters);
}
catch { }
}
}
