public CMVideoFormatDescription(CMVideoCodecType codecType, CMVideoDimensions size)
: base(CreateCMVideoFormatDescription (codecType, size), true)
{
}
static extern /* OSStatus */ CMFormatDescriptionError CMVideoFormatDescriptionCreate(
/* CFAllocatorRef */ IntPtr allocator,
CMVideoCodecType codecType,
/* int32_t */ int width,
/* int32_t */ int height,
/* CFDictionaryRef */ IntPtr extensions,
/* CMVideoFormatDescriptionRef* */ out IntPtr outDesc);
public static VTCompressionSession Create (int width, int height, CMVideoCodecType codecType,
VTCompressionOutputCallback compressionOutputCallback,
VTVideoEncoderSpecification encoderSpecification = null, // hardware acceleration is default behavior on iOS. no opt-in required.
NSDictionary sourceImageBufferAttributes = null)
{
return Create (width, height, codecType, compressionOutputCallback, encoderSpecification, sourceImageBufferAttributes, static_newCompressionOutputCallback);
}
private static void ExploreProperties(AVAsset asset)
{
AVMediaSelection[] aVMediaSelections = asset.AllMediaSelections;
string[] mDataFormats = asset.AvailableMetadataFormats;
string description = asset.Description;
AVAssetTrack[] avAssetVideoTracks = asset.GetTracks(AVMediaTypes.Video);
foreach (AVAssetTrack avAssetVideoTrack in avAssetVideoTracks)
{
string cDescription = avAssetVideoTrack.Description;
string dDescription = avAssetVideoTrack.DebugDescription;
NSObject[] nsObjects = avAssetVideoTrack.FormatDescriptionsAsObjects;
string descr = nsObjects[0].Description;
//NSObject nsoDimension = avAssetVideoTrack.ValueForKey(new NSString("dimension"));
AVMetadataItem[] avCommonMetadataItems = avAssetVideoTrack.CommonMetadata;
AVMetadataItem[] avMetadataItems = avAssetVideoTrack.Metadata;
CMFormatDescription[] cmFormatDescriptions = avAssetVideoTrack.FormatDescriptions;
foreach (CMFormatDescription cmFormatDescription in cmFormatDescriptions)
{
CMVideoCodecType cmVideoCodecType = cmFormatDescription.VideoCodecType;
CMSubtitleFormatType cmSubtitleFormatType = cmFormatDescription.SubtitleFormatType;
CMMetadataFormatType cmMetadataFormatType = cmFormatDescription.MetadataFormatType;
AudioToolbox.AudioFormat[] atAudioFormats = cmFormatDescription.AudioFormats;
}
}
}
public void TestRegisterSupplementalVideoDecoder(CMVideoCodecType codec)
{
TestRuntime.AssertXcodeVersion(12, TestRuntime.MinorXcode12APIMismatch);
// ensure that the call does not crash, we do not have anyother thing to test since there is
// no way to know if it was a success
VTUtilities.RegisterSupplementalVideoDecoder(codec);
}
public static VTCompressionSession Create(int width, int height, CMVideoCodecType codecType,
VTVideoEncoderSpecification encoderSpecification = null,
NSDictionary sourceImageBufferAttributes = null)
{
return(Create(width, height, codecType, null,
encoderSpecification, sourceImageBufferAttributes));
}
public static VTCompressionSession Create(int width, int height, CMVideoCodecType codecType,
VTCompressionOutputCallback compressionOutputCallback,
VTVideoEncoderSpecification encoderSpecification, // hardware acceleration is default behavior on iOS. no opt-in required.
CVPixelBufferAttributes sourceImageBufferAttributes)
{
return(Create(width, height, codecType, compressionOutputCallback, encoderSpecification, sourceImageBufferAttributes == null ? null : sourceImageBufferAttributes.Dictionary, static_CompressionOutputCallback));
}
static extern /* OSStatus */ VTStatus VTCopySupportedPropertyDictionaryForEncoder(
/* int32_t */ int width,
/* int32_t */ int height,
/* CMVideoCodecType */ CMVideoCodecType codecType,
/* CFDictionaryRef */ IntPtr encoderSpecification,
/* CFStringRef */ out IntPtr outEncoderId,
/* CFDictionaryRef */ out IntPtr outSupportedProperties
);
unsafe extern static VTStatus VTCompressionSessionCreate(
/* CFAllocatorRef */ IntPtr allocator, /* can be null */
/* int32_t */ int width,
/* int32_t */ int height,
/* CMVideoCodecType */ CMVideoCodecType codecType,
/* CFDictionaryRef */ IntPtr dictionaryEncoderSpecification, /* can be null */
/* CFDictionaryRef */ IntPtr dictionarySourceImageBufferAttributes, /* can be null */
/* CFDictionaryRef */ IntPtr compressedDataAllocator, /* can be null */
public CMVideoFormatDescription(CMVideoCodecType codecType, Size size)
: base(IntPtr.Zero)
{
var error = CMVideoFormatDescriptionCreate(IntPtr.Zero, codecType, size.Width, size.Height, IntPtr.Zero, out handle);
if (error != CMFormatDescriptionError.None)
{
throw new ArgumentException(error.ToString());
}
}
extern static VTStatus VTCompressionSessionCreate(
/* CFAllocatorRef */ IntPtr allocator, /* can be null */
/* int32_t */ int width,
/* int32_t */ int height,
/* CMVideoCodecType */ CMVideoCodecType codecType,
/* CFDictionaryRef */ IntPtr dictionaryEncoderSpecification, /* can be null */
/* CFDictionaryRef */ IntPtr dictionarySourceImageBufferAttributes, /* can be null */
/* CFDictionaryRef */ IntPtr compressedDataAllocator, /* can be null */
/* VTCompressionOutputCallback */ CompressionOutputCallback outputCallback,
/* void* */ IntPtr outputCallbackClosure,
/* VTCompressionSessionRef* */ out IntPtr compressionSessionOut);
static IntPtr CreateCMVideoFormatDescription(CMVideoCodecType codecType, CMVideoDimensions size)
{
IntPtr handle;
var error = CMVideoFormatDescriptionCreate(IntPtr.Zero, codecType, size.Width, size.Height, IntPtr.Zero, out handle);
if (error != CMFormatDescriptionError.None)
{
throw new ArgumentException(error.ToString());
}
return(handle);
}
public static VTCompressionSession?Create(int width, int height, CMVideoCodecType codecType,
VTCompressionOutputCallback compressionOutputCallback,
VTVideoEncoderSpecification?encoderSpecification = null, // hardware acceleration is default behavior on iOS. no opt-in required.
NSDictionary?sourceImageBufferAttributes = null)
{
#if NET
unsafe {
return(Create(width, height, codecType, compressionOutputCallback, encoderSpecification, sourceImageBufferAttributes, &NewCompressionCallback));
}
#else
return(Create(width, height, codecType, compressionOutputCallback, encoderSpecification, sourceImageBufferAttributes, static_newCompressionOutputCallback));
#endif
}
static VTCompressionSession Create(int width, int height, CMVideoCodecType codecType,
VTCompressionOutputCallback compressionOutputCallback,
VTVideoEncoderSpecification encoderSpecification, // hardware acceleration is default behavior on iOS. no opt-in required.
NSDictionary sourceImageBufferAttributes, CompressionOutputCallback staticCback) // Undocumented options, probably always null
{
var callbackHandle = default(GCHandle);
if (compressionOutputCallback != null)
{
callbackHandle = GCHandle.Alloc(compressionOutputCallback);
}
IntPtr ret;
var result = VTCompressionSessionCreate(IntPtr.Zero, width, height, codecType,
encoderSpecification != null ? encoderSpecification.Dictionary.Handle : IntPtr.Zero,
sourceImageBufferAttributes != null ? sourceImageBufferAttributes.Handle : IntPtr.Zero,
IntPtr.Zero,
callbackHandle.IsAllocated ? (staticCback) : null,
GCHandle.ToIntPtr(callbackHandle),
out ret);
if (result == VTStatus.Ok && ret != IntPtr.Zero)
{
return new VTCompressionSession(ret, true)
{
callbackHandle = callbackHandle
}
}
;
if (callbackHandle.IsAllocated)
{
callbackHandle.Free();
}
return(null);
}
public CMVideoFormatDescription(CMVideoCodecType codecType, Size size)
: base(IntPtr.Zero)
{
var error = CMVideoFormatDescriptionCreate (IntPtr.Zero, codecType, size.Width, size.Height, IntPtr.Zero, out handle);
if (error != CMFormatDescriptionError.None)
throw new ArgumentException (error.ToString ());
}
extern static VTStatus VTCompressionSessionCreate ( /* CFAllocatorRef */ IntPtr allocator, /* can be null */ /* int32_t */ int width, /* int32_t */ int height, /* CMVideoCodecType */ CMVideoCodecType codecType, /* CFDictionaryRef */ IntPtr dictionaryEncoderSpecification, /* can be null */ /* CFDictionaryRef */ IntPtr dictionarySourceImageBufferAttributes, /* can be null */ /* CFDictionaryRef */ IntPtr compressedDataAllocator, /* can be null */ /* VTCompressionOutputCallback */ CompressionOutputCallback outputCallback, /* void* */ IntPtr outputCallbackClosure, /* VTCompressionSessionRef* */ out IntPtr compressionSessionOut);
static VTCompressionSession Create (int width, int height, CMVideoCodecType codecType,
VTCompressionOutputCallback compressionOutputCallback,
VTVideoEncoderSpecification encoderSpecification, // hardware acceleration is default behavior on iOS. no opt-in required.
NSDictionary sourceImageBufferAttributes, CompressionOutputCallback staticCback) // Undocumented options, probably always null
{
var callbackHandle = default (GCHandle);
if (compressionOutputCallback != null)
callbackHandle = GCHandle.Alloc (compressionOutputCallback);
IntPtr ret;
var result = VTCompressionSessionCreate (IntPtr.Zero, width, height, codecType,
encoderSpecification != null ? encoderSpecification.Dictionary.Handle : IntPtr.Zero,
sourceImageBufferAttributes != null ? sourceImageBufferAttributes.Handle : IntPtr.Zero,
IntPtr.Zero,
callbackHandle.IsAllocated ? (staticCback) : null,
GCHandle.ToIntPtr (callbackHandle),
out ret);
if (result == VTStatus.Ok && ret != IntPtr.Zero)
return new VTCompressionSession (ret, true) {
callbackHandle = callbackHandle
};
if (callbackHandle.IsAllocated)
callbackHandle.Free ();
return null;
}
public static VTCompressionSession Create (int width, int height, CMVideoCodecType codecType,
VTVideoEncoderSpecification encoderSpecification = null,
NSDictionary sourceImageBufferAttributes = null)
{
return Create (width, height, codecType, null,
encoderSpecification, sourceImageBufferAttributes);
}
public static void RegisterSupplementalVideoDecoder(CMVideoCodecType codecType) => VTRegisterSupplementalVideoDecoderIfAvailable((uint)codecType);
public static VTSupportedEncoderProperties GetSupportedEncoderProperties(int width, int height, CMVideoCodecType codecType, NSDictionary encoderSpecification = null)
{
IntPtr encoderIdPtr = IntPtr.Zero;
IntPtr supportedPropertiesPtr = IntPtr.Zero;
var result = VTCopySupportedPropertyDictionaryForEncoder(width, height, codecType, encoderSpecification == null ? IntPtr.Zero : encoderSpecification.Handle, out encoderIdPtr, out supportedPropertiesPtr);
if (result != VTStatus.Ok)
{
if (encoderIdPtr != IntPtr.Zero)
{
CFObject.CFRelease(encoderIdPtr);
}
if (supportedPropertiesPtr != IntPtr.Zero)
{
CFObject.CFRelease(supportedPropertiesPtr);
}
return(null);
}
// The caller must CFRelease the returned supported properties and encoder ID.
var ret = new VTSupportedEncoderProperties {
EncoderId = CFString.FromHandle(encoderIdPtr, releaseHandle: true),
SupportedProperties = Runtime.GetNSObject <NSDictionary> (supportedPropertiesPtr, owns: true)
};
return(ret);
}
public static bool IsHardwareDecodeSupported(CMVideoCodecType codecType)
{
return(VTIsHardwareDecodeSupported(codecType));
}
extern static bool VTIsHardwareDecodeSupported(CMVideoCodecType codecType);
static extern CMFormatDescriptionError CMVideoFormatDescriptionCreate(IntPtr allocator,
CMVideoCodecType codecType,
int width, int height,
IntPtr extensions,
out IntPtr outDesc);
static IntPtr CreateCMVideoFormatDescription(CMVideoCodecType codecType, CMVideoDimensions size)
{
IntPtr handle;
var error = CMVideoFormatDescriptionCreate (IntPtr.Zero, codecType, size.Width, size.Height, IntPtr.Zero, out handle);
if (error != CMFormatDescriptionError.None)
throw new ArgumentException (error.ToString ());
return handle;
}
static extern CMFormatDescriptionError CMVideoFormatDescriptionCreate(IntPtr allocator, CMVideoCodecType codecType, int width, int height, IntPtr extensions, out IntPtr outDesc);
public CMVideoFormatDescription(CMVideoCodecType codecType, CMVideoDimensions size)
: base(CreateCMVideoFormatDescription(codecType, size), true)
{
}
static extern CMFormatDescriptionError CMVideoFormatDescriptionCreate(
/* CFAllocatorRef */ IntPtr allocator,
CMVideoCodecType codecType,
/* int32_t */ int width,
/* int32_t */ int height,
/* CFDictionaryRef */ IntPtr extensions,
/* CMVideoFormatDescriptionRef* */ out IntPtr outDesc);
