diff options
| author | Jonas Smedegaard <dr@jones.dk> | 2022-01-28 15:01:25 +0100 |
|---|---|---|
| committer | Jonas Smedegaard <dr@jones.dk> | 2022-01-28 15:01:25 +0100 |
| commit | 17370bfa2264ed7baeba9249d29682cc9b7fd476 (patch) | |
| tree | f20e90269a067a879cb3ba813882eeda8b03ce2f | |
| parent | 8fad32b929b26cdc10b4463ad9369ff63ea7e1e6 (diff) | |
use common terms for ways to signal simulcast in SDP in DEVELOP
| -rw-r--r-- | DEVELOP.md | 19 |
1 files changed, 14 insertions, 5 deletions
@@ -17,14 +17,13 @@ Functionality to consider when considering tool/platform. * stream efficiency - forwarding * Support [simulcast](https://www.w3.org/TR/webrtc/#simulcast-functionality) i.e. encode multiple streams that an SFU can "hop" between - * issue: 3 incompatible implementation methods exist: - [dirty, draft, or spec method](https://www.meetecho.com/blog/simulcast-janus-ssrc/) - * dirty: SDP munging + * issue: [3 incompatible ways](https://www.meetecho.com/blog/simulcast-janus-ssrc/) + * [Plan B]: SDP munging * test: SDP contains `a=ssrc-group:SIM` entry - * draft: rid + * [Unified Plan]: rid * test: SDP contains `a=rid` and `a=simulcast` entry mentioning "rid=" * supported by Firefox [>= 46](https://www.meetecho.com/blog/simulcast-janus-ssrc/) [<< 72](https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/72#removals_3) - * spec: rid + * [rfc8853][Simulcast in SDP]: rid * test: SDP contains `a=rid` and `a=simulcast` entry not mentioning "rid=" * supported by Firefox [>= 68](https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/72#removals_3) * ...but also needs support for [sendEncodings in RTCRtpTransceiverInit](https://bugzilla.mozilla.org/show_bug.cgi?id=1396918) @@ -328,3 +327,13 @@ supporting "up to 32 users all on video together" TeamViewer cloud SFU service + + +Plan B: <https://datatracker.ietf.org/doc/html/draft-uberti-rtcweb-plan-00> + "Plan B: draft spec expired 2013 on signaling multiple media sources in WebRTC by munging SDP" + +Unified Plan: <https://tools.ietf.org/html/draft-roach-mmusic-unified-plan-00> + "Unified Plan: draft spec expired 2014 on signaling multiple media sources in WebRTC by setting Restriction Identifier (RID)" + +Simulcast in SDP: <https://datatracker.ietf.org/doc/html/rfc8853> + "Simulcast in SDP: spec on signaling multiple media sources in WebRTC by setting Restriction Identifier (RID)" |