text: /*
   * Copyright (C) 2020 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1.  Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   * 2.  Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "config.h"
  
  #if USE(AVFOUNDATION)
  
  #import <VideoToolbox/VTCompressionSession.h>
  
  #include <wtf/SoftLinking.h>
  
  SOFT_LINK_FRAMEWORK_FOR_SOURCE(PAL, VideoToolbox)
  
  SOFT_LINK_CONSTANT_FOR_SOURCE(PAL, VideoToolbox, kVTCompressionPropertyKey_ExpectedFrameRate, CFStringRef)
  SOFT_LINK_CONSTANT_FOR_SOURCE(PAL, VideoToolbox, kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration, CFStringRef)
  SOFT_LINK_CONSTANT_FOR_SOURCE(PAL, VideoToolbox, kVTCompressionPropertyKey_RealTime, CFStringRef)
  
  SOFT_LINK_CONSTANT_FOR_SOURCE(PAL, VideoToolbox, kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder, CFStringRef)
  
  SOFT_LINK_FUNCTION_FOR_SOURCE(PAL, VideoToolbox, VTCompressionSessionCreate, OSStatus, (CFAllocatorRef allocator, int32_t width, int32_t height, CMVideoCodecType codecType, CFDictionaryRef encoderSpecification, CFDictionaryRef sourceImageBufferAttributes, CFAllocatorRef compressedDataAllocator, VTCompressionOutputCallback outputCallback, void* outputCallbackRefCon, VTCompressionSessionRef* compressionSessionOut), (allocator, width, height, codecType, encoderSpecification, sourceImageBufferAttributes, compressedDataAllocator, outputCallback, outputCallbackRefCon, compressionSessionOut))
  SOFT_LINK_FUNCTION_FOR_SOURCE(PAL, VideoToolbox, VTCompressionSessionCompleteFrames, OSStatus, (VTCompressionSessionRef session, CMTime completeUntilPresentationTimeStamp), (session, completeUntilPresentationTimeStamp))
  SOFT_LINK_FUNCTION_FOR_SOURCE(PAL, VideoToolbox, VTCompressionSessionEncodeFrame, OSStatus, (VTCompressionSessionRef session, CVImageBufferRef imageBuffer, CMTime presentationTimeStamp, CMTime duration, CFDictionaryRef frameProperties, void* sourceFrameRefcon, VTEncodeInfoFlags* infoFlagsOut), (session, imageBuffer, presentationTimeStamp, duration, frameProperties, sourceFrameRefcon, infoFlagsOut))
  SOFT_LINK_FUNCTION_FOR_SOURCE(PAL, VideoToolbox, VTCompressionSessionPrepareToEncodeFrames, OSStatus, (VTCompressionSessionRef session), (session))
  
  #endif // USE(AVFOUNDATION)
  