UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.47 Safari/537.36

Steps to reproduce the problem:
1. Login with http://web.ciscospark.com
2. download spark Ios client (https://itunes.apple.com/us/app/cisco-spark/id833967564?mt=8)
3.  Make a call from the spark web client to ios client 

What is the expected behavior?
There should be media flowing between both the clients (Audio and video)

When software encoding is enabled on the ios custom client it starts working 

What went wrong?
There is a decode error on the webrtc internals and media doesnt flow between them 

Did this work before? Yes chrome 57

Chrome version: >58   Channel: stable
OS Version: OS X 10.12.4
Flash Version: 

Error Logs on the Chrome side 
[83772:52547:0410/111132.303309:ERROR:rtc_video_decoder.cc(183)] Decoding error occurred.
[83772:52547:0410/111132.303392:ERROR:h264_decoder_impl.cc(330)] avcodec_decode_video2 error: -1094995529
[83772:52547:0410/111132.342950:ERROR:h264_decoder_impl.cc(330)] avcodec_decode_video2 error: -1094995529
 

Deleted: ios packets(1).pcapng 9.9 MB

ios packets(1).pcapng 9.9 MB Download