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HEIF (https://en.m.wikipedia.org/wiki/High_Efficiency_Image_File_Format) seems like a great container to replace many image formats. It can use HEVC for video. But, like video formats, can it be streamed or progressively downloaded? For instance, could a cover image or thumbnail be downloaded first and displayed to the user, while waiting for additional larger resolution images, all via one file?

Paul Roub
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akaru
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1 Answers1

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From what I've seen from WWDC session about HEIF & HEVC, it is possible to stream HEVC video via HLS. HEVC can be accessed/consumed using the following methods:

Excerpt from WWDC: (Introducing HEIF and HEVC)

Accessing HEVC
HEVC movie support

AVFoundation--supported media source
PhotoKit--movies, resources and edit
WebKit--hardware support and macOS desktops
HTTP Live Streaming (HLS)
Apple apps

But I am not really sure about the progressive download.

badhanganesh
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