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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_ | |
| 6 #define MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 | |
| 10 #include "base/macros.h" | |
| 11 #include "media/base/mac/coremedia_glue.h" | |
| 12 #include "media/base/media_export.h" | |
| 13 | |
| 14 // VideoToolbox API is available in and after OS X 10.9 and iOS 8 (10.8 has | |
| 15 // support for software encoding, but this class exposes the 10.9 API level). | |
| 16 // Chromium requires OS X 10.9 or iOS 9. This class is defined to try and load | |
| 17 // the VideoToolbox library at runtime. If it succeeds, clients can use | |
| 18 // VideoToolbox via this class. | |
| 19 // Note that this file is necessary because Chromium still targets OS X 10.6 for | |
| 20 // deployment. It should be deprecated soon, see crbug.com/579648. | |
| 21 class MEDIA_EXPORT VideoToolboxGlue { | |
| 22 public: | |
| 23 class Loader; | |
| 24 | |
| 25 // Returns a glue object if VideoToolbox is supported or null otherwise. | |
| 26 // Using a glue object allows to avoid expensive atomic operations on every | |
| 27 // function call. The object has process life duration and must not be | |
| 28 // deleted. | |
| 29 static const VideoToolboxGlue* Get(); | |
| 30 | |
| 31 // Originally from VTErrors.h | |
| 32 typedef UInt32 VTEncodeInfoFlags; | |
| 33 enum { | |
| 34 kVTEncodeInfo_Asynchronous = 1UL << 0, | |
| 35 kVTEncodeInfo_FrameDropped = 1UL << 1, | |
| 36 }; | |
| 37 | |
| 38 // Originally from VTCompressionSession.h | |
| 39 typedef struct OpaqueVTCompressionSession* VTCompressionSessionRef; | |
| 40 typedef void (*VTCompressionOutputCallback)( | |
| 41 void* outputCallbackRefCon, | |
| 42 void* sourceFrameRefCon, | |
| 43 OSStatus status, | |
| 44 VTEncodeInfoFlags infoFlags, | |
| 45 CoreMediaGlue::CMSampleBufferRef sampleBuffer); | |
| 46 | |
| 47 // Originally from VTSession.h | |
| 48 typedef CFTypeRef VTSessionRef; | |
| 49 | |
| 50 // Originally from VTCompressionProperties.h | |
| 51 CFStringRef kVTCompressionPropertyKey_AllowFrameReordering() const; | |
| 52 CFStringRef kVTCompressionPropertyKey_AverageBitRate() const; | |
| 53 CFStringRef kVTCompressionPropertyKey_ColorPrimaries() const; | |
| 54 CFStringRef kVTCompressionPropertyKey_DataRateLimits() const; | |
| 55 CFStringRef kVTCompressionPropertyKey_ExpectedFrameRate() const; | |
| 56 CFStringRef kVTCompressionPropertyKey_MaxFrameDelayCount() const; | |
| 57 CFStringRef kVTCompressionPropertyKey_MaxKeyFrameInterval() const; | |
| 58 CFStringRef kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration() const; | |
| 59 CFStringRef kVTCompressionPropertyKey_ProfileLevel() const; | |
| 60 CFStringRef kVTCompressionPropertyKey_RealTime() const; | |
| 61 CFStringRef kVTCompressionPropertyKey_TransferFunction() const; | |
| 62 CFStringRef kVTCompressionPropertyKey_YCbCrMatrix() const; | |
| 63 | |
| 64 CFStringRef kVTEncodeFrameOptionKey_ForceKeyFrame() const; | |
| 65 | |
| 66 CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel() const; | |
| 67 CFStringRef kVTProfileLevel_H264_Main_AutoLevel() const; | |
| 68 CFStringRef kVTProfileLevel_H264_Extended_AutoLevel() const; | |
| 69 CFStringRef kVTProfileLevel_H264_High_AutoLevel() const; | |
| 70 | |
| 71 CFStringRef | |
| 72 kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder() | |
| 73 const; | |
| 74 CFStringRef | |
| 75 kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder() const; | |
| 76 | |
| 77 // Originally from VTCompressionSession.h | |
| 78 OSStatus VTCompressionSessionCreate( | |
| 79 CFAllocatorRef allocator, | |
| 80 int32_t width, | |
| 81 int32_t height, | |
| 82 CoreMediaGlue::CMVideoCodecType codecType, | |
| 83 CFDictionaryRef encoderSpecification, | |
| 84 CFDictionaryRef sourceImageBufferAttributes, | |
| 85 CFAllocatorRef compressedDataAllocator, | |
| 86 VTCompressionOutputCallback outputCallback, | |
| 87 void* outputCallbackRefCon, | |
| 88 VTCompressionSessionRef* compressionSessionOut) const; | |
| 89 OSStatus VTCompressionSessionEncodeFrame( | |
| 90 VTCompressionSessionRef session, | |
| 91 CVImageBufferRef imageBuffer, | |
| 92 CoreMediaGlue::CMTime presentationTimeStamp, | |
| 93 CoreMediaGlue::CMTime duration, | |
| 94 CFDictionaryRef frameProperties, | |
| 95 void* sourceFrameRefCon, | |
| 96 VTEncodeInfoFlags* infoFlagsOut) const; | |
| 97 CVPixelBufferPoolRef VTCompressionSessionGetPixelBufferPool( | |
| 98 VTCompressionSessionRef session) const; | |
| 99 void VTCompressionSessionInvalidate(VTCompressionSessionRef session) const; | |
| 100 OSStatus VTCompressionSessionCompleteFrames( | |
| 101 VTCompressionSessionRef session, | |
| 102 CoreMediaGlue::CMTime completeUntilPresentationTimeStamp) const; | |
| 103 | |
| 104 // Originally from VTSession.h | |
| 105 OSStatus VTSessionSetProperty(VTSessionRef session, | |
| 106 CFStringRef propertyKey, | |
| 107 CFTypeRef propertyValue) const; | |
| 108 | |
| 109 private: | |
| 110 struct Library; | |
| 111 VideoToolboxGlue(); | |
| 112 Library* library_; | |
| 113 DISALLOW_COPY_AND_ASSIGN(VideoToolboxGlue); | |
| 114 }; | |
| 115 | |
| 116 #endif // MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_ | |
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Chromium Code Reviews
Issue 2529493002:
mac: Remove more media/base/mac glue unneeded now that we target 10.9 (Closed)
