WHEP VP9 not playing on ios17.3.1 safari, but whip vp9 from ios17.3.1 safari can be read from macos chrome.

[bronze1man]

Which version are you using?

v1.5.1

Which operating system are you using?

• Linux amd64 standard
• Linux amd64 Docker
• Linux arm64 standard
• Linux arm64 Docker
• Linux arm7 standard
• Linux arm7 Docker
• Linux arm6 standard
• Linux arm6 Docker
• Windows amd64 standard
• Windows amd64 Docker (WSL backend)
• macOS amd64 standard
• macOS amd64 Docker
• Other (please describe)

Describe the issue

• WHEP VP9 not playing from self on ios17.3.1 safari.
• whip vp9 from ios17.3.1 safari can read from macos chrome.
• WHEP VP9 not playing from macos chrome on ios17.3.1 safari either.

Describe how to replicate the issue

start the server
publish in page1 with WHIP VP9 on ios17.3.1 safari
read in page1 with ios17.3.1 safari
read in page2 with macos chrome

Did you attach the server logs?

yes
2024/02/23 11:57:10 INF [WebRTC] [session b2d6a8ff] created by 127.0.0.1:49592
2024/02/23 11:57:11 INF [WebRTC] [session b2d6a8ff] peer connection established, local candidate: host/udp/10.0.0.69/8189, remote candidate: prflx/udp/10.0.0.133/64621
2024/02/23 11:57:11 INF [WebRTC] [session b2d6a8ff] is publishing to path 'e3d6825867', 2 tracks (Opus, VP9)
2024/02/23 11:57:11 INF [WebRTC] [session 5c6a331c] created by 127.0.0.1:49592
2024/02/23 11:57:11 INF [WebRTC] [session 5c6a331c] peer connection established, local candidate: host/udp/10.15.60.69/8189, remote candidate: prflx/udp/10.0.0.133/49557
2024/02/23 11:57:11 INF [WebRTC] [session 5c6a331c] is reading from path 'e3d6825867', 2 tracks (VP9, Opus)

Did you attach a network dump?

no

[bronze1man]

same as #3059 #3058

[aler9]

Thanks for reporting the issue, this is fixed by

• Fix VP9 decoding on iOS pion/rtp#269
• fix VP9 decoding on iOS (https://github.com/bluenviron/mediamtx/issues/3060) gortsplib#553
• fix VP9 decoding on iOS (#3060) #3299