In C# .Net 8 MediaInfo_Count_Get cant get value in release version? #2210
Comments
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The following code works on both debug and release: using System.Runtime.InteropServices;
string path = "Test.m2ts";
using (MediaInfo mi = new MediaInfo(path))
{
string summary = mi.GetSummary(true, false);
int videoCount = mi.GetCount(MediaInfoStreamKind.Video);
int audioCount = mi.GetCount(MediaInfoStreamKind.Audio);
string fps = mi.GetVideo(0, "FrameRate");
Console.WriteLine(summary);
Console.WriteLine($"fps:{fps} videoCount:{videoCount} audioCount:{audioCount}");
}
public class MediaInfo : IDisposable
{
readonly IntPtr Handle;
public MediaInfo(string file)
{
if ((Handle = MediaInfo_New()) == IntPtr.Zero)
throw new Exception("Failed to call MediaInfo_New");
if (MediaInfo_Open(Handle, file) == 0)
throw new Exception("Error MediaInfo_Open");
}
public string GetInfo(MediaInfoStreamKind kind, string parameter)
{
return Marshal.PtrToStringUni(MediaInfo_Get(Handle, kind, 0,
parameter, MediaInfoKind.Text, MediaInfoKind.Name)) ?? "";
}
public int GetCount(MediaInfoStreamKind kind) => MediaInfo_Count_Get(Handle, kind, -1);
public string GetGeneral(string parameter)
{
return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.General,
0, parameter, MediaInfoKind.Text, MediaInfoKind.Name)) ?? "";
}
public string GetVideo(int stream, string parameter)
{
return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Video,
stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name)) ?? "";
}
public string GetAudio(int stream, string parameter)
{
return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Audio,
stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name)) ?? "";
}
public string GetText(int stream, string parameter)
{
return Marshal.PtrToStringUni(MediaInfo_Get(Handle, MediaInfoStreamKind.Text,
stream, parameter, MediaInfoKind.Text, MediaInfoKind.Name)) ?? "";
}
public string GetSummary(bool complete, bool rawView)
{
MediaInfo_Option(Handle, "Language", rawView ? "raw" : "");
MediaInfo_Option(Handle, "Complete", complete ? "1" : "0");
return Marshal.PtrToStringUni(MediaInfo_Inform(Handle, 0)) ?? "";
}
bool Disposed;
public void Dispose()
{
if (!Disposed)
{
if (Handle != IntPtr.Zero)
{
MediaInfo_Close(Handle);
MediaInfo_Delete(Handle);
}
Disposed = true;
GC.SuppressFinalize(this);
}
}
~MediaInfo() { Dispose(); }
[DllImport("MediaInfo.dll")]
static extern IntPtr MediaInfo_New();
[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
static extern int MediaInfo_Open(IntPtr handle, string path);
[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
static extern IntPtr MediaInfo_Option(IntPtr handle, string option, string value);
[DllImport("MediaInfo.dll")]
static extern IntPtr MediaInfo_Inform(IntPtr handle, IntPtr reserved);
[DllImport("MediaInfo.dll")]
static extern int MediaInfo_Close(IntPtr handle);
[DllImport("MediaInfo.dll")]
static extern void MediaInfo_Delete(IntPtr handle);
[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
static extern IntPtr MediaInfo_Get(IntPtr handle, MediaInfoStreamKind kind,
IntPtr stream, string parameter, MediaInfoKind infoKind, MediaInfoKind searchKind);
[DllImport("MediaInfo.dll", CharSet = CharSet.Unicode)]
static extern int MediaInfo_Count_Get(IntPtr handle, MediaInfoStreamKind streamKind, IntPtr stream);
}
public enum MediaInfoStreamKind
{
General,
Video,
Audio,
Text,
Other,
Image,
Menu,
Max,
}
public enum MediaInfoKind
{
Name,
Text,
Measure,
Options,
NameText,
MeasureText,
Info,
HowTo
}Output: |
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@cjee21 Thx for help,Now it is working fine! |
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dll version: MediaInfo_DLL_24.12_Windows_x64_WithoutInstaller
MediaInfo_Inform can get inform
MediaInfo_Get can get stream inform
MediaInfo_Count_Get can return count in debug mode
but MediaInfo_Count_Get always return 0 in release version?
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