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SheerVideoWhy does QuickTime Player 7.1.3+ display Sheer YCbCr 8bw 4:2:2 as solid white?

April 26, 2017display Player Quicktime Sheer SheerVideoWhy Y'CbCr

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SheerVideoWhy does QuickTime Player 7.1.3+ display Sheer YCbCr 8bw 4:2:2 as solid white?

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The “Sheer Y’CbCr 8bw 4:2:2” codec is included in SheerVideo only for backward support for customers using the obsolete wide-range ‘yuv2’ or ‘yuvu’ pixel format, and has not been upddated to include Synchromy support. Apple has been warning for years that users should switch to the video-range ‘2vuy’ or ‘yuvs’ pixel format. QuickTime 7.1.3 apparently no longer supports direct display of the ‘yuv2’ or ‘yuvu’ pixel format, although BTVPro and some other applications still do. If you have a particular need for Y’CbCr 8-bit wide-range 4:2:2 data, please let us know, and we will consider adding Synchromy support to the “Sheer Y’CbCr 8bw 4:2:2” codec for display and other pixel-format conversion purposes.