VTCompressionSession.Create Method
Definition
Important
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Overloads
| Name | Description |
|---|---|
| Create(Int32, Int32, CMVideoCodecType, VTCompressionSession+VTCompressionOutputCallback, VTVideoEncoderSpecification, CVPixelBufferAttributes) |
Create a new compression session |
| Create(Int32, Int32, CMVideoCodecType, VTCompressionSession+VTCompressionOutputCallback, VTVideoEncoderSpecification, NSDictionary) |
Create a new compression session |
Create(Int32, Int32, CMVideoCodecType, VTCompressionSession+VTCompressionOutputCallback, VTVideoEncoderSpecification, CVPixelBufferAttributes)
Create a new compression session
public static VideoToolbox.VTCompressionSession? Create(int width, int height, CoreMedia.CMVideoCodecType codecType, VideoToolbox.VTCompressionSession.VTCompressionOutputCallback compressionOutputCallback, VideoToolbox.VTVideoEncoderSpecification? encoderSpecification, CoreVideo.CVPixelBufferAttributes? sourceImageBufferAttributes);static member Create : int * int * CoreMedia.CMVideoCodecType * VideoToolbox.VTCompressionSession.VTCompressionOutputCallback * VideoToolbox.VTVideoEncoderSpecification * CoreVideo.CVPixelBufferAttributes -> VideoToolbox.VTCompressionSessionParameters
- width
- Int32
Frame width in pixels.
- height
- Int32
Frame height in pixels.
- codecType
- CMVideoCodecType
Encoder to use to compress the frames.
- compressionOutputCallback
- VTCompressionSession.VTCompressionOutputCallback
A callback that will be invoked to process a compressed frame. See the delegate type for more information on the received parameters.
- encoderSpecification
- VTVideoEncoderSpecification
Parameters to choose the encoder, or null to let VideoToolbox choose it.
- sourceImageBufferAttributes
- CVPixelBufferAttributes
Any additional attributes for the compressed data.
Returns
A new VTCompressionSession if successful, null otherwise.
Remarks
The compressionOutputCallback callback will be invoked for each frame in decode order, not necessarily the display order.
Applies to
Create(Int32, Int32, CMVideoCodecType, VTCompressionSession+VTCompressionOutputCallback, VTVideoEncoderSpecification, NSDictionary)
Create a new compression session
public static VideoToolbox.VTCompressionSession? Create(int width, int height, CoreMedia.CMVideoCodecType codecType, VideoToolbox.VTCompressionSession.VTCompressionOutputCallback compressionOutputCallback, VideoToolbox.VTVideoEncoderSpecification? encoderSpecification = default, Foundation.NSDictionary? sourceImageBufferAttributes = default);static member Create : int * int * CoreMedia.CMVideoCodecType * VideoToolbox.VTCompressionSession.VTCompressionOutputCallback * VideoToolbox.VTVideoEncoderSpecification * Foundation.NSDictionary -> VideoToolbox.VTCompressionSessionParameters
- width
- Int32
Frame width in pixels.
- height
- Int32
Frame height in pixels.
- codecType
- CMVideoCodecType
Encoder to use to compress the frames.
- compressionOutputCallback
- VTCompressionSession.VTCompressionOutputCallback
A callback that will be invoked to process a compressed frame. See the delegate type for more information on the received parameters.
- encoderSpecification
- VTVideoEncoderSpecification
Parameters to choose the encoder, or null to let VideoToolbox choose it.
- sourceImageBufferAttributes
- NSDictionary
Any additional attributes for the compressed data.
Returns
A new VTCompressionSession if successful, null otherwise.
Remarks
The compressionOutputCallback callback will be invoked for each frame in decode order, not necessarily the display order.