public static NSDictionary GetAttachments(this ICMAttachmentBearer target, CMAttachmentMode attachmentMode)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
var attachments = CMCopyDictionaryOfAttachments(IntPtr.Zero, target.Handle, attachmentMode);
if (attachments == IntPtr.Zero)
{
return(null);
}
return(Runtime.GetNSObject <NSDictionary> (attachments, true));
}
public static T GetAttachment <T> (this ICMAttachmentBearer target, string key, out CMAttachmentMode attachmentModeOut) where T : class, INativeObject
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var nsKey = NSString.CreateNative(key);
var attchm = CMGetAttachment(target.Handle, nsKey, out attachmentModeOut);
NSString.ReleaseNative(nsKey);
if (attchm != IntPtr.Zero)
{
return(Runtime.GetINativeObject <T> (attchm, false));
}
return(default(T));
}
extern static /* CFTypeRef */ IntPtr CMGetAttachment(/* CMAttachmentBearerRef */ IntPtr target, /* CFStringRef */ IntPtr key,
/* CMAttachmentMode */ out CMAttachmentMode attachmentModeOut);
public static void SetAttachments(this ICMAttachmentBearer target, NSDictionary theAttachments, CMAttachmentMode attachmentMode)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (theAttachments == null)
{
throw new ArgumentNullException(nameof(theAttachments));
}
CMSetAttachments(target.Handle, theAttachments.Handle, attachmentMode);
}
extern static /* CFDictionaryRef */ IntPtr CMCopyDictionaryOfAttachments(/* CFAllocatorRef */ IntPtr allocator, /* CMAttachmentBearerRef */ IntPtr target,
/* CMAttachmentMode */ CMAttachmentMode attachmentMode);
public static void SetAttachment(this ICMAttachmentBearer target, string key, INativeObject value, CMAttachmentMode attachmentMode)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var nsKey = NSString.CreateNative(key);
CMSetAttachment(target.Handle, nsKey, value.Handle, attachmentMode);
NSString.ReleaseNative(nsKey);
}
extern static void CMSetAttachments(/* CMAttachmentBearerRef */ IntPtr target, /* CFDictionaryRef */ IntPtr theAttachments,
/* CMAttachmentMode */ CMAttachmentMode attachmentMode);
extern static void CMSetAttachment(/* CMAttachmentBearerRef */ IntPtr target, /* CFStringRef */ IntPtr key, /* CFTypeRef */ IntPtr value,
/* CMAttachmentMode */ CMAttachmentMode attachmentMode);
public static T GetAttachment <T> (this ICMAttachmentBearer target, CMSampleBufferAttachmentKey key, out CMAttachmentMode attachmentModeOut) where T : class, INativeObject
{
return(GetAttachment <T> (target, key.GetConstant(), out attachmentModeOut));
}
// There is some API that needs a more strongly typed version of a NSDictionary
// and there is no easy way to downcast from NSDictionary to NSDictionary<TKey, TValue>
public static NSDictionary <TKey, TValue> GetAttachments <TKey, TValue> (this ICMAttachmentBearer target, CMAttachmentMode attachmentMode)
where TKey : class, INativeObject
where TValue : class, INativeObject
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
var attachments = CMCopyDictionaryOfAttachments(IntPtr.Zero, target.Handle, attachmentMode);
if (attachments == IntPtr.Zero)
{
return(null);
}
return(Runtime.GetNSObject <NSDictionary <TKey, TValue> > (attachments, true));
}
public static void SetAttachments(this ICMAttachmentBearer target, NSDictionary theAttachments, CMAttachmentMode attachmentMode)
{
if (target is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(target));
}
if (theAttachments is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(theAttachments));
}
CMSetAttachments(target.Handle, theAttachments.Handle, attachmentMode);
}
public static void SetAttachment(this ICMAttachmentBearer target, string key, INativeObject value, CMAttachmentMode attachmentMode)
{
if (target is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(target));
}
if (value is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(value));
}
if (key is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(key));
}
var nsKey = CFString.CreateNative(key);
CMSetAttachment(target.Handle, nsKey, value.Handle, attachmentMode);
CFString.ReleaseNative(nsKey);
}
