Video playback on IOS11 doesnt work (construct2 / cordova)

Question

I got a question about a project i released months ago. I included video files (intro) which worked perfektly. But now our customer told us that on ios 11 the video plackback isnt working anymore. I tried it out and hes right. I can only hear the audio, but the video doesnt shows up. The app is exported with cordova and was "crossplatformed" with the intel XDK

Is this a problem, i would have to fix? Or is it may a problem apple will fix with a newer update. Has someone an identical experience?

Note: On the preview version (ios 10.xx.xx) everything works...so iam not sure about how to handle this problem. I told, that its primary an ios problem. Basically there are no more techniques you can include a video file into the project. I didnt used some plugins or anything else, so it should be a common issue.

Thanks in advance for a feedback!

Answer 1

The output from ffprobe for the video you linked to looks like it should play as you say:

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/testvideo.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    creation_time   : 2017-09-26T14:58:09.000000Z
  Duration: 00:00:06.04, start: 0.000000, bitrate: 536 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 524 kb/s, 25 fps, 25 tbr, 50k tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2017-09-26T14:58:09.000000Z
      handler_name    : Alias Data Handler
      encoder         : AVC Coding

Given it did play previously the long term solution is likely to be the proper iOS fix, but in the shorter term if you were to re-encode it using 'baseline' rather than 'high' h.264 profile you may find it has a better chance of working.

Most devices try to make sure they at least support properly baseline encodings so you will often find it used when targeting mobile devices. Its not as efficient for a given quality but that may be an ok trade-off temporarily for you at this time.