[Webkit-unassigned] [Bug 175014] Frequent situations where iOS device locks up, requiring a hard reboot when consuming webrtc streams on IOS

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Nov 3 07:37:21 PDT 2017


Jay Charles <firstcontact at jaycharles.net> changed:

           What    |Removed                     |Added
                 CC|                            |firstcontact at jaycharles.net

--- Comment #17 from Jay Charles <firstcontact at jaycharles.net> ---
I see no change in this behavior with 11.2 beta.

In my case I'm consuming streams from Wowza Streaming Engine. I've tested against many encoder sources (chrome, firefox, ffmpeg, wirecast), all using the same video encoding parameters (the wirecast test case involves transcoding audio as the input is AAC, but that's not particularly relevant here)

In nearly all cases, playback of video freezes after as little as 1 second, but as long as several minutes. In my case the video freeze takes the safari tab with it (tab goes unresponsive and has to be closed), but does not take down safari or the OS.

I've also tested with streams encoded with flash. I have to modify the profile level id to make this work (what comes out of flash isn't constrained, so I have to lie a bit to prevent outright rejection of the sdp). Playback works perfectly everywhere except webkit. In webkit, it can take several minutes for playback to begin, but once it starts it never freezes. Go figure.

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