Tizen 2017 UHD support - issue with audio

[MHrezdovic]

Hello guys,

we are using dash.js player in our project. We are using it on Tizen TV, and it seems to be working good, except fro one case. On Tizen TV 2017 UHD the sound of the stream does not work. It only happens on UHD models, on FHD models of 2017 it works well also recent models works good.

We are looking for help how to resolve this if this is a stream issue or compatibility issue. Can someone help us ? What can we do to identify the issue.

Here is the log. It seems like it cant identify the audio track, but very same stream works ok on other models with same version of dash.js

[374207][BufferController][video] Buffered range: 1644846320.942 - 1644846362.942, currentTime =  1644846342.657 
dash.all.min.js:1 [374208][ScheduleController][video] Appended bytes for video and stream id 1 
dash.all.min.js:1 [374214][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [374216][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [374585][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [374588][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [374719][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [374721][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [375091][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [375093][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [375224][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [375227][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [375596][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [375599][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [375732][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [375734][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [376105][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [376108][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [376237][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [376239][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [376613][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [376619][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [376742][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [376743][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [377123][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [377125][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [377253][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [377256][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [377628][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [377631][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [377759][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [377761][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [377956][DashParser] Parsing complete: ( xml2json: 25.0ms, objectiron: 0.110ms, total: 0.0251s) 
dash.all.min.js:1 [377957][StreamController] Manifest updated... updating data system wide. 
dash.all.min.js:1 [377959][StreamController] Matching default timing source protocol to manifest protocol:  https://time.akamai.com/?iso&ms 
dash.all.min.js:1 [377968][ManifestUpdater] Manifest has been refreshed at Mon Feb 14 2022 06:46:17 GMT-0700 (MST)[1644846377.229]  
dash.all.min.js:1 [377969][ManifestUpdater] Refresh manifest in 4000 milliseconds. 
dash.all.min.js:1 [378134][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [378137][StreamProcessor][audio] Next fragment request url for stream id 1 and media type audio is https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(128000,Level_params=dxADIeIBnw..)/Fragments(audio_482_ces=78952625421775) 
dash.all.min.js:1 [378203][StreamProcessor][audio] OnFragmentLoadingCompleted for stream id 1 and media type audio - Url: https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(128000,Level_params=dxADIeIBnw..)/Fragments(audio_482_ces=78952625421775)  
dash.all.min.js:1 [378208][BufferController][audio] Buffered range: 1644846320.265 - 1644846366.942, currentTime =  1644846346.644 
dash.all.min.js:1 [378210][ScheduleController][audio] Appended bytes for audio and stream id 1 
dash.all.min.js:1 [378263][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [378266][StreamProcessor][video] Next fragment request url for stream id 1 and media type video is https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(2400000,Level_params=dxADMQCfJBIknw..)/Fragments(video=16448463629429970) 
dash.all.min.js:1 [378426][StreamProcessor][video] OnFragmentLoadingCompleted for stream id 1 and media type video - Url: https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(2400000,Level_params=dxADMQCfJBIknw..)/Fragments(video=16448463629429970)  
dash.all.min.js:1 [378446][BufferController][video] Buffered range: 1644846320.942 - 1644846366.942, currentTime =  1644846346.947 
dash.all.min.js:1 [378448][ScheduleController][video] Appended bytes for video and stream id 1 
dash.all.min.js:1 [378451][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [378453][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [378714][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [378715][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [378960][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [378963][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [379217][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [379219][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [379467][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [379469][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [379723][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [379725][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [379973][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [379975][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [380227][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [380229][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [380478][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [380480][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [380732][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [380734][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [380984][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [380986][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [381239][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [381241][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [381489][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [381491][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [381744][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [381746][DashHandler][audio] audio No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [381750][BufferController][video] video: Removing buffer from: 0 to 1644846330.234 
dash.all.min.js:1 [381752][BufferController][audio] audio: Removing buffer from: 0 to 1644846330.234 
dash.all.min.js:1 [381762][BufferController][video] onRemoved buffer from: 0 to 1644846330.234 
dash.all.min.js:1 [381763][BufferController][video] Buffered range: 1644846330.942 - 1644846366.942, currentTime =  1644846350.234 
dash.all.min.js:1 [381765][BufferController][audio] onRemoved buffer from: 0 to 1644846330.234 
dash.all.min.js:1 [381766][BufferController][audio] Buffered range: 1644846330.249 - 1644846366.942, currentTime =  1644846350.234 
dash.all.min.js:1 [382007][DashParser] Parsing complete: ( xml2json: 14.7ms, objectiron: 0.170ms, total: 0.0149s) 
dash.all.min.js:1 [382008][StreamController] Manifest updated... updating data system wide. 
dash.all.min.js:1 [382010][StreamController] Matching default timing source protocol to manifest protocol:  https://time.akamai.com/?iso&ms 
dash.all.min.js:1 [382012][ManifestUpdater] Manifest has been refreshed at Mon Feb 14 2022 06:46:21 GMT-0700 (MST)[1644846381.28]  
dash.all.min.js:1 [382013][ManifestUpdater] Refresh manifest in 4000 milliseconds. 
dash.all.min.js:1 [382020][ScheduleController][video] Media segment needed for video and stream id 1 
dash.all.min.js:1 [382021][DashHandler][video] video No segment found at index: 4. Wait for next loop 
dash.all.min.js:1 [382248][ScheduleController][audio] Media segment needed for audio and stream id 1 
dash.all.min.js:1 [382250][StreamProcessor][audio] Next fragment request url for stream id 1 and media type audio is https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(128000,Level_params=dxADIeIBnw..)/Fragments(audio_482_ces=78952625613263) 
dash.all.min.js:1 [382341][StreamProcessor][audio] OnFragmentLoadingCompleted for stream id 1 and media type audio - Url: https://s1-h5-vspps-sign.devcdn.magio.tv/___PARAM_DI498177_CI3878869063_TI3…s(128000,Level_params=dxADIeIBnw..)/Fragments(audio_482_ces=78952625613263)  

Also what is strange it only does not work for livestream, if i open same asset as archive recording it works with sound...

Anyone if you have some clues where to start digging, pls let me know. Thanks.

[dsilhavy]

@MHrezdovic This issue is related to the timestamps of the media segments. Samsung 2017 devices can not handle large timestamps. I wrote a blog post about this with a solution: https://websites.fraunhofer.de/video-dev/talk-to-me-finding-the-magic-number-when-debugging-dash-streams-on-samsung-2017-smarttvs/

[MHrezdovic]

Thanks for reply, we manage to find a workaround for our case, but i have also contacted samsung via this issue and they acknowledged it. Hopefully they will release a fix for it sometime in the future.