| /* |
| * Copyright (C) 2018 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. |
| */ |
| |
| #pragma once |
| |
| #ifdef __APPLE__ |
| #include <Availability.h> |
| #include <AvailabilityMacros.h> |
| #include <TargetConditionals.h> |
| |
| // Macro taken from WTF/wtf/Platform.h |
| #if defined __has_include && __has_include(<CoreFoundation/CFPriv.h>) |
| |
| #if (defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR) |
| #define ENABLE_VCP_ENCODER 0 |
| #define ENABLE_VCP_VTB_ENCODER 0 |
| #elif (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) |
| #define ENABLE_VCP_ENCODER __IPHONE_OS_VERSION_MIN_REQUIRED < 140000 |
| #define ENABLE_VCP_VTB_ENCODER __IPHONE_OS_VERSION_MIN_REQUIRED >= 130000 && __IPHONE_OS_VERSION_MIN_REQUIRED < 140000 |
| #define HAVE_VTB_REQUIREDLOWLATENCY __IPHONE_OS_VERSION_MIN_REQUIRED >= 140000 |
| #elif (defined(TARGET_OS_MAC) && TARGET_OS_MAC) |
| #define ENABLE_VCP_ENCODER __MAC_OS_X_VERSION_MIN_REQUIRED < 101600 |
| #define ENABLE_VCP_VTB_ENCODER __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500 && __MAC_OS_X_VERSION_MIN_REQUIRED < 101600 |
| #define HAVE_VTB_REQUIREDLOWLATENCY __MAC_OS_X_VERSION_MIN_REQUIRED >= 101600 |
| #endif |
| |
| #endif |
| |
| #if !defined(ENABLE_VCP_ENCODER) |
| #define ENABLE_VCP_ENCODER 0 |
| #endif |
| #if !defined(ENABLE_VCP_VTB_ENCODER) |
| #define ENABLE_VCP_VTB_ENCODER 0 |
| #endif |
| #if !defined(HAVE_VTB_REQUIREDLOWLATENCY) |
| #define HAVE_VTB_REQUIREDLOWLATENCY 0 |
| #endif |
| |
| #if !defined(ALWAYS_INLINE) |
| #define ALWAYS_INLINE inline |
| #endif |
| |
| #ifdef __cplusplus |
| #define WTF_EXTERN_C_BEGIN extern "C" { |
| #define WTF_EXTERN_C_END } |
| #else |
| #define WTF_EXTERN_C_BEGIN |
| #define WTF_EXTERN_C_END |
| #endif |
| |
| // Macros copied from <wtf/cocoa/SoftLinking.h> |
| #define SOFT_LINK_FRAMEWORK_FOR_HEADER(functionNamespace, framework) \ |
| namespace functionNamespace { \ |
| extern void* framework##Library(bool isOptional = false); \ |
| bool is##framework##FrameworkAvailable(); \ |
| inline bool is##framework##FrameworkAvailable() { \ |
| return framework##Library(true) != nullptr; \ |
| } \ |
| } |
| |
| #define SOFT_LINK_FUNCTION_FOR_HEADER(functionNamespace, framework, functionName, resultType, parameterDeclarations, parameterNames) \ |
| WTF_EXTERN_C_BEGIN \ |
| resultType functionName parameterDeclarations; \ |
| WTF_EXTERN_C_END \ |
| namespace functionNamespace { \ |
| extern resultType (*softLink##framework##functionName) parameterDeclarations; \ |
| inline resultType softLink_##framework##_##functionName parameterDeclarations \ |
| { \ |
| return softLink##framework##functionName parameterNames; \ |
| } \ |
| } \ |
| ALWAYS_INLINE resultType functionName parameterDeclarations \ |
| {\ |
| return functionNamespace::softLink##framework##functionName parameterNames; \ |
| } |
| |
| #define SOFT_LINK_FRAMEWORK_OPTIONAL(framework) \ |
| static void* framework##Library() \ |
| { \ |
| static void* frameworkLibrary = dlopen("/System/Library/Frameworks/" #framework ".framework/" #framework, RTLD_NOW); \ |
| return frameworkLibrary; \ |
| } |
| |
| #define SOFT_LINK_POINTER_OPTIONAL(framework, name, type) \ |
| static type init##name(); \ |
| static type (*get##name)() = init##name; \ |
| static type pointer##name; \ |
| \ |
| static type name##Function() \ |
| { \ |
| return pointer##name; \ |
| } \ |
| \ |
| static type init##name() \ |
| { \ |
| void** pointer = static_cast<void**>(dlsym(framework##Library(), #name)); \ |
| if (pointer) \ |
| pointer##name = (__bridge type)(*pointer); \ |
| get##name = name##Function; \ |
| return pointer##name; \ |
| } |
| |
| #if ENABLE_VCP_ENCODER || ENABLE_VCP_VTB_ENCODER |
| |
| #include <VideoProcessing/VideoProcessing.h> |
| |
| SOFT_LINK_FRAMEWORK_FOR_HEADER(webrtc, VideoProcessing) |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VPModuleInitialize, void, (), ()) |
| #define VPModuleInitialize softLink_VideoProcessing_VPModuleInitialize |
| |
| #endif |
| |
| #if ENABLE_VCP_ENCODER |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VCPCompressionSessionSetProperty, OSStatus, (VCPCompressionSessionRef session, CFStringRef key, CFTypeRef value), (session, key, value)) |
| #define VCPCompressionSessionSetProperty softLink_VideoProcessing_VCPCompressionSessionSetProperty |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VCPCompressionSessionGetPixelBufferPool, CVPixelBufferPoolRef, (VCPCompressionSessionRef session), (session)) |
| #define VCPCompressionSessionGetPixelBufferPool softLink_VideoProcessing_VCPCompressionSessionGetPixelBufferPool |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VCPCompressionSessionEncodeFrame, OSStatus, (VCPCompressionSessionRef session, CVImageBufferRef buffer, CMTime timestamp, CMTime time, CFDictionaryRef dictionary, void * data, VTEncodeInfoFlags * flags), (session, buffer, timestamp, time, dictionary, data, flags)) |
| #define VCPCompressionSessionEncodeFrame softLink_VideoProcessing_VCPCompressionSessionEncodeFrame |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VCPCompressionSessionCreate, OSStatus, (CFAllocatorRef allocator1, int32_t value1 , int32_t value2, CMVideoCodecType type, CFDictionaryRef dictionary1, CFDictionaryRef dictionary2, CFAllocatorRef allocator3, VTCompressionOutputCallback callback, void * data, VCPCompressionSessionRef *session), (allocator1, value1, value2, type, dictionary1, dictionary2, allocator3, callback, data, session)) |
| #define VCPCompressionSessionCreate softLink_VideoProcessing_VCPCompressionSessionCreate |
| |
| SOFT_LINK_FUNCTION_FOR_HEADER(webrtc, VideoProcessing, VCPCompressionSessionInvalidate, void, (VCPCompressionSessionRef session), (session)) |
| #define VCPCompressionSessionInvalidate softLink_VideoProcessing_VCPCompressionSessionInvalidate |
| |
| #else |
| using VCPCompressionSessionRef = void*; |
| #endif // ENABLE_VCP_ENCODER |
| |
| #endif // __APPLE__ |