{"action":"created","issue":{"url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/25","labels_url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/25/labels{/name}","comments_url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/25/comments","events_url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/25/events","html_url":"https://github.com/EricssonResearch/openwebrtc-ios-sdk/issues/25","id":85552785,"number":25,"title":"What is the minimal supported iOS version ?","user":{"login":"manuroe","id":8418515,"avatar_url":"https://avatars.githubusercontent.com/u/8418515?v=3","gravatar_id":"","url":"https://api.github.com/users/manuroe","html_url":"https://github.com/manuroe","followers_url":"https://api.github.com/users/manuroe/followers","following_url":"https://api.github.com/users/manuroe/following{/other_user}","gists_url":"https://api.github.com/users/manuroe/gists{/gist_id}","starred_url":"https://api.github.com/users/manuroe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/manuroe/subscriptions","organizations_url":"https://api.github.com/users/manuroe/orgs","repos_url":"https://api.github.com/users/manuroe/repos","events_url":"https://api.github.com/users/manuroe/events{/privacy}","received_events_url":"https://api.github.com/users/manuroe/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-06-05T14:58:37Z","updated_at":"2015-09-14T06:40:01Z","closed_at":null,"body":"The openwebrtc-ios-sdk claims iOS7 but the iOS OWR demo apps start from iOS8.\r\nMatrix Console starts from iOS7. Calls works fine between iOS7 OWR and FF/Chrome or other iOS7 OWR client.\r\nBut there is an interoperability issue when making calls between iOS7 vs iOS8: there is no video both side.\r\n\r\nOnly the iOS7 logs show errors:\r\n\r\nAssert - (kernResult == kIOReturnSuccess) - f: /SourceCache/AppleVXE380/AppleVXE380-403/Library/AppleVXE380UserLandLibrary.cpp l: 494\r\nAppleVXE380VA ERROR: IOServiceOpen failed\r\nAssert - (false) - f: /SourceCache/AppleVXE380/AppleVXE380-403/Library/AppleVXE380FIGwrapper.cpp l: 3106\r\nVXE FIG: H264VideoEncoderVA_DriverCreate failed.\r\nAssert - (pDriverInstance) - f: /SourceCache/AppleVXE380/AppleVXE380-403/Library/AppleVXE380UserLandLibrary.cpp l: 579\r\nAppleVXE380VA ERROR: AppleVXE380VA_DriverDelete, pDriverInstance NULL.\r\n\r\nAssert - (err == noErr) - f: /SourceCache/AppleVXE380/AppleVXE380-403/Library/AppleVXE380FIGwrapper.cpp l: 3227\r\nVXE FIG ERROR: AppleVXE380VA_DriverDelete failed.\r\n0:04:43.601722000 \u001B[332m  787\u001B[00m 0x163321b8 \u001B[31;01mERROR  \u001B[00m \u001B[00m               vtenc vtenc.c:792:gst_vtenc_create_session:<encoder_vtenc_h264_0>\u001B[00m VTCompressionSessionCreate() returned: -12907\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/comments/139975838","html_url":"https://github.com/EricssonResearch/openwebrtc-ios-sdk/issues/25#issuecomment-139975838","issue_url":"https://api.github.com/repos/EricssonResearch/openwebrtc-ios-sdk/issues/25","id":139975838,"user":{"login":"stefanalund","id":190856,"avatar_url":"https://avatars.githubusercontent.com/u/190856?v=3","gravatar_id":"","url":"https://api.github.com/users/stefanalund","html_url":"https://github.com/stefanalund","followers_url":"https://api.github.com/users/stefanalund/followers","following_url":"https://api.github.com/users/stefanalund/following{/other_user}","gists_url":"https://api.github.com/users/stefanalund/gists{/gist_id}","starred_url":"https://api.github.com/users/stefanalund/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stefanalund/subscriptions","organizations_url":"https://api.github.com/users/stefanalund/orgs","repos_url":"https://api.github.com/users/stefanalund/repos","events_url":"https://api.github.com/users/stefanalund/events{/privacy}","received_events_url":"https://api.github.com/users/stefanalund/received_events","type":"User","site_admin":false},"created_at":"2015-09-14T06:40:00Z","updated_at":"2015-09-14T06:40:00Z","body":"To answer your question stated in the title of the issue, OWR supports at least iOS 7. As @superdump says iOS 8 introduced the possibility to do HW accelerated H.264 video. If OWR is running on iOS 8 and a supported device, HW will be used, otherwise we fall back to SW coding via OpenH264."}}