Error creating demuxer when playing .ism stream

Hi,

I maintain the Eurosport addon for Kodi.

The addon has been able to play .ism streams using inputstream.ffmpegdirect for a while now, but recently it has started to raise an error.

I suspect Eurosport have changed something and I need to provide additional settings to allow the stream to play.

In the addon I set the following:

item.setProperty('inputstreamclass','inputstream.ffmpegdirect')
item.setProperty('inputstream.ffmpegdirect.manifest_type','ism')
item.setProperty('inputstream.ffmpegdirect.is_realtime_stream','true')
item.setMimeType('text/xml')

The log is now displaying the following error:

2021-03-15 12:09:00.292 T:281471503795376   DEBUG: CFileCache::Open - opening <secondary/3/4ee27fdf05844bd5a09677a77e6e75a5/start/1615807783/index.ism/Manifest> using cache
2021-03-15 12:09:00.293 T:281471503795376   DEBUG: CurlFile::Open(0xffff104ab3a0) https://eurosport-dlvr-ott.akamaized.net/secondary/3/4ee27fdf05844bd5a09677a77e6e75a5/start/1615807783/index.ism/Manifest?aws.manifestfilter=video_bitrate:900000-5500000&hdnts=ip=92.22.35.160~exp=1615864139~acl=/secondary/3/4ee27fdf05844bd5a09677a77e6e75a5/start/1615807783/index.ism/Manifest%3Faws.manifestfilter%3Dvideo_bitrate%3A900000-5500000*~hmac=420d16f7fd8f2fe07043dd1f7fd1647db4204c01033f3aa9814be076181f5e1d
2021-03-15 12:09:00.322 T:281471394755760   DEBUG: Thread FileCache start, auto delete: false
2021-03-15 12:09:00.322 T:281471503795376  NOTICE: Creating Demuxer
2021-03-15 12:09:00.323 T:281471394755760    INFO: CFileCache::Process - Source read didn't return any data! Hit eof(?)
2021-03-15 12:09:00.358 T:281471503795376   ERROR: Open - error probing input format, https://eurosport-dlvr-ott.akamaized.net/secondary/3/4ee27fdf05844bd5a09677a77e6e75a5/start/1615807783/index.ism/Manifest?aws.manifestfilter=video_bitrate:900000-5500000&hdnts=ip=92.22.35.160~exp=1615864139~acl=/secondary/3/4ee27fdf05844bd5a09677a77e6e75a5/start/1615807783/index.ism/Manifest%3Faws.manifestfilter%3Dvideo_bitrate%3A900000-5500000*~hmac=420d16f7fd8f2fe07043dd1f7fd1647db4204c01033f3aa9814be076181f5e1d
2021-03-15 12:09:00.359 T:281471503795376   ERROR: OpenDemuxStream - Error creating demuxer
2021-03-15 12:09:00.359 T:281471503795376  NOTICE: CVideoPlayer::OnExit()

I've copied and pasted the URL into VLC, and it plays correctly in there.

I've tested and can re-create the error on Kodi 18.8.

Any thoughts?

Begin with the logged Manifest URL and the OpenDemuxStream/error-probing path; compare the .ism stream behavior with VLC and the existing inputstream.ffmpegdirect settings. Done means identifying the compatibility change or required setting and confirming playback on the reported Kodi version.