[HLS Announce 18] Re: coming to Apple HLS clients later this year: M-JPEG support
[HLS Announce 18] Re: coming to Apple HLS clients later this year: M-JPEG support
- Subject: [HLS Announce 18] Re: coming to Apple HLS clients later this year: M-JPEG support
- From: Roger Pantos via HLS-Announce <email@hidden>
- Date: Tue, 07 Jun 2022 09:51:25 -0700
M-JPEG support in I-frame playlists is now available in the iOS 16 developer
seed (as well as the tvOS and macOS seeds).
cheers,
Roger.
> On Feb 23, 2022, at 9:03 AM, Roger Pantos <email@hidden> wrote:
>
> Hi folks. This is just a quick heads-up to let you know that in an OS release
> later this year, the Apple HLS clients will be updated to support Motion-JPEG
> fMP4 segments (i.e. JPEG images inside fMP4 containers). This will allow you
> to provide I-frame playlists (for both VOD and live content) that contain
> JPEG I-frames, rather than AVC or HEVC as previously supported.
>
> We're doing this to support interoperability with lower-end devices from
> other manufacturers that cannot spawn a second video decoder instance, but
> can decode JPEG in software.
>
> M-JPEG is specified in ISO/IEC 23008-12 "High efficiency coding and media
> delivery in heterogeneous environments —Part 12: Image File Format." The 4cc
> codec type is 'mjpg' with no parameters (http://mp4ra.org/#/codecs), So an
> example EXT-X-I-FRAME-STREAM-INF would be:
>
> #EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=331000,CODECS="mjpg",URI="iframe_index.m3u8"
>
> We also plan to update our mediafilesegmenter tool to enable it to produce
> M-JPEG fMP4 segments from JPEG source.
>
>
> regards,
>
> Roger Pantos
> Apple Inc.
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