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Published byAlan Lance Modified over 9 years ago
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Standards, process, requirements 4K PLAYBACK EXPLAINED
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COMPRESSION STANDARDS The evolution of compression technology JPEG MPEG-2 MPEG-4, H.264, AVC (Advanced Video Coding) H.265, HEVC (High-efficiency Video Coding)
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4K PLAYBACK – STANDARDS Optimal playback of native 4K content on a 4K UHD display New 4K Standards H.265/HEVC video compression: enables delivery of high- quality 4K content at a manageable file size and data rate HDMI 2.0: only the new HDMI 2.0 output can support 60 fps playback
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4K PLAYBACK – ENCODING Process to deliver native 4K video @ 60fps Video Encoding The native 4K (3840x2160) video file should be encoded to the new compression format H.265 in order to playback at 60 fps H.265 HEVC (high efficiency video codec) enables delivery of high-quality 4K content at about the same file size and data rate as HD content at H.264
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H.265/HEVC – THE NEW STANDARD The importance of proper video compression Smaller File Advanced compression efficiencies from larger block sizes Up to 50% efficiency gain in coding translates to lower bitrates Better Picture Quality Increased intra prediction modes and higher encoding computation allows for soft blur effect rather than macro-blocking
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4K PLAYBACK – VIDEO FILE Process to deliver native 4K video @ 60fps 4K Video File Resolution: H.265 encoded 4K (3840x2160) video file Frame rate: playback at 60 fps
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4K PLAYBACK – DECODE Process to deliver native 4K video @ 60fps Decoding Player must be able to decode an H.265 4K (3840x2160) encoded file Player must be able to decode at a data rates of 60 fps
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4K PLAYBACK – OUTPUT Process to deliver native 4K video @ 60fps Output to 4K Display Player must have HDMI 2.0 output to enable playback at a frame rate of 60 fps HDMI 1.4a only supports 30 fps
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