49 lines
2.1 KiB
Markdown
49 lines
2.1 KiB
Markdown
"All-open" mode uses only open formats, forces Safari on iPhone and older desktops to use ogv.js fallback:
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* DASH manifest
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* WebM VP9 video segments
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* WebM Opus audio segments
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* WebM Vorbis audio segments (for Safari)
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* WebM VP8/Vorbis flat file fallback
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"Open-forward" mode avoids ISO not-quite-open formats except in compatibility fallbacks. Multi-res capability for all modern desktops, but not iPhone or iPad which will load a single flat file natively.
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* DASH manifest
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* WebM VP9 video segments
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* WebM Opus audio segments
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* WebM Vorbis audio segments (for Safari)
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* WebM VP8/Vorbis flat file fallback (old Firefox/Chrome or JS off)
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* MP4 H.264/MP3 flat file fallback (for iOS and single-URL linking)
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"HLS-forward" mode has full multi-res capability on newer iPhones and iPads, AND all modern desktops, but requires making multiple H.264 and MP3 files and using MP4 container.
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* HLS manifest
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* MP4 VP9 video segments
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* MP4 H.264 video segments (for Safari)
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* MP4 Opus audio segments
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* MP4 MP3 audio segments (for Safari)
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* WebM VP8/Vorbis flat file fallback
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* MP4 H.264/MP3 flat file fallback (for single-URL linking)
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* Chrome/Firefox: use MSE to handle HLS
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* Desktop Safari: use MSE to handle HLS
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* iPhone/iPad: use native HLS
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* old Firefox/Chrome: use WebM VP8 fallback
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* old IE/Edge/Safari: use MP4 H.264 fallback
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"Split-ticket" mode works fully on VP9-supporting iPhones, iPads, and Macs but falls back to ogv.js for older ones, while modern desktops all get the multi-res magic. Requires using MP4 container and MP3 audio, which are not patented but the standards docs are paywalled. Note that desktop Safari with JS off won't see working video.
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* HLS manifest
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* MP4 VP9 video segments
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* MP4 Opus audio segments
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* MP4 MP3 audio segments (for Safari)
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* WebM VP8/Vorbis flat file fallback
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* Chrome/Firefox: use MSE to handle HLS
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* Desktop Safari w/ hw VP9: use MSE to handle HLS
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* Desktop Safari w/o hw VP9: HLS errors out; fall back to ogv.js
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* iPhone/iPad w/ hw VP9: use native HLS
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* iPhone/iPad w/o hw VP9: HLS errors out; fall back to ogv.js
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* old Firefox/Chrome: use WebM VP8 fallback
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