FreeSWITCH
After twenty-one months of silence, FreeSWITCH 1.11 deleted thirty legacy modules and moved on
Comparison · Meetings
SRS vs mediasoup
A side-by-side editorial comparison of SRS and mediasoup — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:webrtc
SRS vs mediasoup: at a glance
What is SRS?
SRS 6.0 went stable by making H.265 work everywhere, not just in one protocol.
SRS shipped 6.0 release 0 in December 2025, promoting the 6.0 line to stable in place of 5.0 at roughly 170,000 lines of code. The headline is H.265/HEVC carried across RTMP, HTTP-FLV, HLS, HTTP-TS and SRT, with DVR recording to both MP4 and FLV. WebRTC gained WHEP for playback, stereo Opus over SDP and a configurable AAC-to-Opus bitrate; SRT moved to libsrt 1.5.3 with round-trip latency reported down to 200ms.
What is mediasoup?
mediasoup's Rust line is absorbing an outside security audit while finishing subchannels over pipe transport.
The Rust crate has shipped eight releases in five weeks, all of them worker-level. Two threads run through them: a set of memory-safety and cryptographic fixes credited to an external reporter, covering constant-time comparison in SCTP state-cookie and STUN message-integrity verification, an out-of-bounds write in RTP dependency-descriptor handling, and an integer overflow in SCTP error-cause parsing; and the subchannels mechanism being extended to pipe transport, encoded in 0.23.0 and completed for pipe DataConsumers in 0.24.2. SVC was also enabled for VP8 and H264 along the way.
SRS vs mediasoup: editorial side-by-side
SRS
0.0MEETINGS
SRS 6.0 went stable by making H.265 work everywhere, not just in one protocol.
◆ Current state
SRS shipped 6.0 release 0 in December 2025, promoting the 6.0 line to stable in place of 5.0 at roughly 170,000 lines of code. The headline is H.265/HEVC carried across RTMP, HTTP-FLV, HLS, HTTP-TS and SRT, with DVR recording to both MP4 and FLV. WebRTC gained WHEP for playback, stereo Opus over SDP and a configurable AAC-to-Opus bitrate; SRT moved to libsrt 1.5.3 with round-trip latency reported down to 200ms.
◆ Where it's heading
The eighteen months of alpha and beta tags before release 0 were overwhelmingly crash, leak and iterator fixes — smart-pointer conversions, use-after-free repairs in the HLS and bridge paths, RTC-to-RTMP stability. That is the signature of a project stabilizing an existing engine rather than extending it, with the codec work landing at the end. SRS is positioning as the self-hosted streaming server that speaks every ingest and egress protocol in one binary.
◆ Prediction
With 6.0 now the stable line, the pattern from the 5.0 era points to a run of 6.0 patch releases carrying fixes rather than features. The entries give no indication of what the next major line targets.
mediasoup
5.0MEETINGS
mediasoup's Rust line is absorbing an outside security audit while finishing subchannels over pipe transport.
◆ Current state
The Rust crate has shipped eight releases in five weeks, all of them worker-level. Two threads run through them: a set of memory-safety and cryptographic fixes credited to an external reporter, covering constant-time comparison in SCTP state-cookie and STUN message-integrity verification, an out-of-bounds write in RTP dependency-descriptor handling, and an integer overflow in SCTP error-cause parsing; and the subchannels mechanism being extended to pipe transport, encoded in 0.23.0 and completed for pipe DataConsumers in 0.24.2. SVC was also enabled for VP8 and H264 along the way.
◆ Where it's heading
This is infrastructure being hardened rather than repositioned. The audit-driven fixes arriving in a batch with named credits, plus the libsrtp bump to a 3.0.0 beta, suggest the project is working through a review of its packet-parsing surface — the part of an SFU that touches untrusted input. The subchannels-over-pipe work is the one feature arc: it makes data-channel subchannels usable in multi-worker routing topologies, which matters for anyone scaling a single conference across workers.
◆ Prediction
Expect the remaining audit findings to keep landing as patch releases on the 0.24 line, and further pipe-transport parity work now that subchannels cross that boundary. Nothing in these entries indicates a change in the library's API direction.
Alternatives to SRS and mediasoup
Other Meetings products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either SRS or mediasoup.
Asterisk
Six branches patched inside thirteen minutes — Asterisk's security process is the story here
FusionPBX
The release feed stops in 2018, so nothing here describes the current product
PeerTube
PeerTube 8.2 spends its release candidates hardening instances against scrapers and locking down account data
Muvi
Buried in Muvi's OTT explainer mill, Alie is quietly becoming the reason to buy.
EventMobi
EventMobi's feed argues for onsite badge printing while saying nothing about what it shipped
See all SRS alternatives → · See all mediasoup alternatives →
Recent activity from SRS and mediasoup
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agomediasoupSubchannels handled in pipe DataConsumers
- 2d agomediasoupWorker abort path uses a thread-local buffer
- 3d agomediasoupMemory-safety and constant-time crypto fixes in the worker
- 9d agomediasoupSubchannels enabled over pipe transport
- 14d agomediasoupCrash fixed when closing an SCTP DataConsumer
- 16d agomediasoupSVC enabled for VP8 and H264
- 7mo agoSRSSRS 6.0 goes stable with H.265 across RTMP, HLS, TS and SRT ⚡
- 8mo agoSRS6.0-b3: use-after-free and HLS cleanup fixes
- 9mo agoSRS6.0-b2: configurable SRT stream IDs and a WHIP transcoding fix
- 10mo agoSRS6.0-b1: RTC crash fixes, Windows binary dropped
- 11mo agoSRS6.0-b0: WebRTC recording sync fixed, forwarding configurable by env var
- 1y agoSRS6.0-a2: first H.265 DVR support, plus leak fixes
Frequently asked questions
What is the difference between SRS and mediasoup?
Both compete on the same themes — webrtc — within Meetings. mediasoup is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is SRS better than mediasoup?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. mediasoup is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
What are the best alternatives to SRS?
Top SRS alternatives in Meetings are ranked by recent ship velocity. Browse the "SRS alternatives" section above for the current picks, or visit /alternatives/srs for the full list with editorial commentary on each.
What are the best alternatives to mediasoup?
Top mediasoup alternatives in Meetings are ranked by recent ship velocity. Browse the "mediasoup alternatives" section above for the current picks, or visit /alternatives/mediasoup for the full list with editorial commentary on each.