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What is CVBuffer/ROPPONGI.swift
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noppefoxwolf
December 27, 2018
Programming
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What is CVBuffer/ROPPONGI.swift
noppefoxwolf
December 27, 2018
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Transcript
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$7#V⒎FSͷਖ਼ମ w $7*NBHF#V⒎FS public typealias CVImageBuffer = CVBuffer w $71JYFM#V⒎FS
public typealias CVPixelBuffer = CVImageBuffer w $70QFO(-&45FYUVSF public typealias CVOpenGLESTexture = CVImageBuffer
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ݕূ var pb: CVPixelBuffer? = nil CVPixelBufferCreate(kCFAllocatorDefault, 128, 128, kCVPixelFormatType_32BGRA,
nil, &pb) CVImageBufferGetDisplaySize(pb!) // -> (128.0, 128.0)
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ؾ࣋ͪͰ͍ͬͯΔ
6**NBHFͱͷҧ͍
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ΞυϨεͷϩοΫ $7#V⒎FSͷσʔλόοϑΝʹ$16͔ΒΞΫηε͢Δ ߹ΞυϨεΛϩοΫ͢Δඞཁ͕͋Δ CVPixelBufferLockBaseAddress(pb, .readOnly) defer { CVPixelBufferUnlockBaseAddress(pb, .readOnly) }
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$.4BNQMF#V⒎FSͱ
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