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| 1 // Copyright 2013 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_COREMEDIA_GLUE_H_ | |
| 6 #define MEDIA_BASE_MAC_COREMEDIA_GLUE_H_ | |
| 7 | |
| 8 #include <CoreVideo/CoreVideo.h> | |
| 9 #include <stddef.h> | |
| 10 #include <stdint.h> | |
| 11 | |
| 12 #include "base/macros.h" | |
| 13 #include "media/base/media_export.h" | |
| 14 | |
| 15 // CoreMedia API is only introduced in Mac OS X > 10.6, the (potential) linking | |
| 16 // with it has to happen in runtime. If it succeeds, subsequent clients can use | |
| 17 // CoreMedia via the class declared in this file, where the original naming has | |
| 18 // been kept as much as possible. | |
| 19 class MEDIA_EXPORT CoreMediaGlue { | |
| 20 public: | |
| 21 // Originally from CMTime.h | |
| 22 typedef int64_t CMTimeValue; | |
| 23 typedef int32_t CMTimeScale; | |
| 24 typedef int64_t CMTimeEpoch; | |
| 25 typedef uint32_t CMTimeFlags; | |
| 26 typedef struct { | |
| 27 CMTimeValue value; | |
| 28 CMTimeScale timescale; | |
| 29 CMTimeFlags flags; | |
| 30 CMTimeEpoch epoch; | |
| 31 } CMTime; | |
| 32 | |
| 33 // Originally from CMBlockBuffer.h | |
| 34 typedef uint32_t CMBlockBufferFlags; | |
| 35 typedef struct OpaqueCMBlockBuffer* CMBlockBufferRef; | |
| 36 typedef struct { | |
| 37 uint32_t version; | |
| 38 void* (*AllocateBlock)(void*, size_t); | |
| 39 void (*FreeBlock)(void*, void*, size_t); | |
| 40 void* refCon; | |
| 41 } CMBlockBufferCustomBlockSource; | |
| 42 | |
| 43 // Originally from CMFormatDescription.h. | |
| 44 typedef const struct opaqueCMFormatDescription* CMFormatDescriptionRef; | |
| 45 typedef CMFormatDescriptionRef CMVideoFormatDescriptionRef; | |
| 46 typedef FourCharCode CMVideoCodecType; | |
| 47 typedef struct { | |
| 48 int32_t width; | |
| 49 int32_t height; | |
| 50 } CMVideoDimensions; | |
| 51 enum { | |
| 52 kCMPixelFormat_422YpCbCr8_yuvs = 'yuvs', | |
| 53 }; | |
| 54 enum { | |
| 55 kCMVideoCodecType_JPEG = 'jpeg', | |
| 56 kCMVideoCodecType_JPEG_OpenDML = 'dmb1', | |
| 57 kCMVideoCodecType_H264 = 'avc1', | |
| 58 }; | |
| 59 | |
| 60 // Originally from CMFormatDescriptionBridge.h | |
| 61 enum { | |
| 62 kCMFormatDescriptionBridgeError_InvalidParameter = -12712, | |
| 63 }; | |
| 64 | |
| 65 // Originally from CMSampleBuffer.h. | |
| 66 typedef struct OpaqueCMSampleBuffer* CMSampleBufferRef; | |
| 67 | |
| 68 // Originally from CMTime.h. | |
| 69 static CMTime CMTimeMake(int64_t value, int32_t timescale); | |
| 70 | |
| 71 // Originally from CMBlockBuffer.h | |
| 72 static OSStatus CMBlockBufferCreateContiguous( | |
| 73 CFAllocatorRef structureAllocator, | |
| 74 CMBlockBufferRef sourceBuffer, | |
| 75 CFAllocatorRef blockAllocator, | |
| 76 const CMBlockBufferCustomBlockSource* customBlockSource, | |
| 77 size_t offsetToData, | |
| 78 size_t dataLength, | |
| 79 CMBlockBufferFlags flags, | |
| 80 CMBlockBufferRef* newBBufOut); | |
| 81 static size_t CMBlockBufferGetDataLength(CMBlockBufferRef theBuffer); | |
| 82 static OSStatus CMBlockBufferGetDataPointer(CMBlockBufferRef theBuffer, | |
| 83 size_t offset, | |
| 84 size_t* lengthAtOffset, | |
| 85 size_t* totalLength, | |
| 86 char** dataPointer); | |
| 87 static Boolean CMBlockBufferIsRangeContiguous(CMBlockBufferRef theBuffer, | |
| 88 size_t offset, | |
| 89 size_t length); | |
| 90 | |
| 91 // Originally from CMSampleBuffer.h. | |
| 92 static CMBlockBufferRef CMSampleBufferGetDataBuffer(CMSampleBufferRef sbuf); | |
| 93 static CMFormatDescriptionRef CMSampleBufferGetFormatDescription( | |
| 94 CMSampleBufferRef sbuf); | |
| 95 static CVImageBufferRef CMSampleBufferGetImageBuffer( | |
| 96 CMSampleBufferRef buffer); | |
| 97 static CFArrayRef CMSampleBufferGetSampleAttachmentsArray( | |
| 98 CMSampleBufferRef sbuf, | |
| 99 Boolean createIfNecessary); | |
| 100 static CFStringRef kCMSampleAttachmentKey_NotSync(); | |
| 101 static CMTime CMSampleBufferGetPresentationTimeStamp(CMSampleBufferRef sbuf); | |
| 102 | |
| 103 // Originally from CMFormatDescription.h. | |
| 104 static FourCharCode CMFormatDescriptionGetMediaSubType( | |
| 105 CMFormatDescriptionRef desc); | |
| 106 static CMVideoDimensions CMVideoFormatDescriptionGetDimensions( | |
| 107 CMVideoFormatDescriptionRef videoDesc); | |
| 108 static OSStatus CMVideoFormatDescriptionGetH264ParameterSetAtIndex( | |
| 109 CMFormatDescriptionRef videoDesc, | |
| 110 size_t parameterSetIndex, | |
| 111 const uint8_t** parameterSetPointerOut, | |
| 112 size_t* parameterSetSizeOut, | |
| 113 size_t* parameterSetCountOut, | |
| 114 int* NALUnitHeaderLengthOut) | |
| 115 /*__OSX_AVAILABLE_STARTING(__MAC_10_9,__IPHONE_7_0)*/; | |
| 116 | |
| 117 private: | |
| 118 DISALLOW_IMPLICIT_CONSTRUCTORS(CoreMediaGlue); | |
| 119 }; | |
| 120 | |
| 121 #endif // MEDIA_BASE_MAC_COREMEDIA_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)
