Dash.js: Problem with MediaKeys on Android 4.4.2
Environment
- [ x] The MPD passes the DASH-IF Conformance Tool on http://dashif.org/conformance.html
- [ x] The stream has correct Access-Control-Allow-Origin headers (CORS)
- [ x] There are no network errors such as 404s in the browser console when trying to play the stream
- [x ] The issue observed is not mentioned on https://github.com/Dash-Industry-Forum/dash.js/wiki/FAQ
- [ ] The issue occurs in the latest reference client on http://dashif.org/reference/players/javascript/ and not just on my page
- Link to playable MPD file: issue ocurrs on any file
- Dash.js version: 2.3.0
- Browser name/version:
- OS name/version: Android 4.4.2
Steps to reproduce
- Please provide clear steps to reproduce your problem
This is my setup for loading an .mpd file on an Ionic controller.js:
var loadDashjsVideo = function () {
customDataWv = {
"Conax-Custom-Data": cxWidevine.getCxCustomDataForWidevine($scope.loadedContent.token)
};
protectionData = {
"com.widevine.alpha": {
serverURL: widevineLicenseServerUrl,
httpRequestHeaders: customDataWv,
clearkeys: null
}
};
if (!player) {
player = dashjs.MediaPlayer().create();
}
player.setProtectionData(protectionData);
player.initialize(video, null, false);
player.attachSource($scope.loadedContent.link);
player.on(dashjs.MediaPlayer.events['CAN_PLAY'], function() {
player.play();
});
}
This works perfectly fine on Android 5, 6 and 7, tried it on a number of devices. However, it's not working on Android 4.4.2 (tried it on a tablet and a phone).
Observed behaviour
I'm running the exact same code on these different versions of Android and on 4.4.2 is where the problem occurs. What i can tell from the console log (included below) is that there's a problem when initializing the MediaKeys (which i don't fully understand what they are) and the CAN_PLAY event never gets triggered.
Console output
On Android 4.4.2
[78] EME detected on this user agent! (ProtectionModel_21Jan2015)
dash.all.debug.js:2783 [96] [dash.js 2.3.0] MediaPlayer has been initialized
dash.all.debug.js:2783 [104] Playback Initialized
dash.all.debug.js:2783 [2077] Parsing complete: ( xml2json: 1.19e+3ms, objectiron: 280ms, total: 1.47s)
dash.all.debug.js:2783 [2080] Manifest has been refreshed at Tue Oct 25 2016 13:01:36 GMT-0300 (ART)[1477411296.765]
dash.all.debug.js:2783 [2086] SegmentTimeline detected using calculated Live Edge Time
dash.all.debug.js:2783 [2105] MediaSource attached to element. Waiting on open...
dash.all.debug.js:2783 [2190] MediaSource is open!
dash.all.debug.js:2783 [2192] Duration successfully set to: 4945.66675
dash.all.debug.js:2783 [2197] Added 0 inline events
dash.all.debug.js:2783 [2199] video codec: video/mp4;codecs="avc1.4D401E"
dash.all.debug.js:2783 [2285] Schedule controller stopping for video
dash.all.debug.js:2783 [2289] Last saved bitrate for video was 2328
dash.all.debug.js:2783 [2312] audio codec: audio/mp4;codecs="mp4a.40.2"
dash.all.debug.js:2783 [2401] Schedule controller stopping for audio
dash.all.debug.js:2783 [2406] No text data.
dash.all.debug.js:2783 [2407] No fragmentedText data.
dash.all.debug.js:2783 [2409] No embeddedText data.
dash.all.debug.js:2783 [2410] No muxed data.
dash.all.debug.js:2783 [2415] Start Event Controller
dash.all.debug.js:2783 [2422] Schedule controller starting for video
dash.all.debug.js:2783 [2430] Schedule controller starting for audio
dash.all.debug.js:2783 [2617] Init fragment finished loading saving to audio's init cache
dash.all.debug.js:2783 [2627] Init fragment finished loading saving to video's init cache
dash.all.debug.js:2783 [2638] DRM: onNeedKey
dash.all.debug.js:2783 [2640] DRM: initData: 戮pssh 職冒y聵@B聠芦聮忙[脿聢_聲 聻聻 聰< W R M H E A D E R x m l n s = " h t t p : / / s c h e m a s . m i c r o s o f t . c o m / D R M / 2 0 0 7 / 0 3 / P l a y R e a d y H e a d e r " v e r s i o n = " 4 . 0 . 0 . 0 " > < D A T A > < P R O T E C T I N F O > < K E Y L E N > 1 6 < / K E Y L E N > < A L G I D > A E S C T R < / A L G I D > < / P R O T E C T I N F O > < K I D > Z x i u 0 j U d + 0 y X o i + t 0 P / N l g = = < / K I D > < C H E C K S U M > E e n m h J s A O o E = < / C H E C K S U M > < L A _ U R L > h t t p : / / l s p r n s m c 2 . b o l d m s s . c o m / c x p l a y r e a d y / r i g h t s m a n a g e r . a s m x < / L A _ U R L > < / D A T A > < / W R M H E A D E R > apssh 铆茂聥漏y脰J脦拢脠'脺脮 !铆 A脪庐g 5L没聴垄/颅脨每脥聳Conax"$d2ae1867-1d35-4cfb-97a2-2fadd0ffcd96
dash.all.debug.js:28563 It is recommended that a robustness level be specified. Not specifying the robustness level could result in unexpected behavior in the future, potentially including failure to play.
dash.all.debug.js:2783 [6441] DRM: onNeedKey
dash.all.debug.js:2783 [6443] DRM: initData: 戮pssh 職冒y聵@B聠芦聮忙[脿聢_聲 聻聻 聰< W R M H E A D E R x m l n s = " h t t p : / / s c h e m a s . m i c r o s o f t . c o m / D R M / 2 0 0 7 / 0 3 / P l a y R e a d y H e a d e r " v e r s i o n = " 4 . 0 . 0 . 0 " > < D A T A > < P R O T E C T I N F O > < K E Y L E N > 1 6 < / K E Y L E N > < A L G I D > A E S C T R < / A L G I D > < / P R O T E C T I N F O > < K I D > Z x i u 0 j U d + 0 y X o i + t 0 P / N l g = = < / K I D > < C H E C K S U M > E e n m h J s A O o E = < / C H E C K S U M > < L A _ U R L > h t t p : / / l s p r n s m c 2 . b o l d m s s . c o m / c x p l a y r e a d y / r i g h t s m a n a g e r . a s m x < / L A _ U R L > < / D A T A > < / W R M H E A D E R > apssh 铆茂聥漏y脰J脦拢脠'脺脮 !铆 A脪庐g 5L没聴垄/颅脨每脥聳Conax"$d2ae1867-1d35-4cfb-97a2-2fadd0ffcd96
dash.all.debug.js:2783 [7190] DRM: KeySystem Access Granted (com.widevine.alpha)! Selecting key system...
dash.all.debug.js:2783 [7197] Getting the request for video time : 0
dash.all.debug.js:2783 [7200] SegmentTimeline: 0 / 4945.66675
dash.all.debug.js:2783 [7215] Getting the request for audio time : 0
dash.all.debug.js:2783 [7219] SegmentTimeline: 0 / 4945.66675
dash.all.debug.js:2783 [8058] DRM: Error selecting key system! -- Error selecting keys system (com.widevine.alpha)! Could not create MediaKeys -- TODO
dash.all.debug.js:2783 [8077] Schedule controller stopping for video
dash.all.debug.js:2783 [8086] Schedule controller stopping for audio
On Android 7:
[42] EME detected on this user agent! (ProtectionModel_21Jan2015)
dash.all.debug.js:2783 [47] [dash.js 2.3.0] MediaPlayer has been initialized
dash.all.debug.js:2783 [56] Playback Initialized
dash.all.debug.js:2783 [7199] Buffered Range for type: audio : 0 - 30.040083
dash.all.debug.js:2783 [1090] Parsing complete: ( xml2json: 581ms, objectiron: 150ms, total: 0.731s)
dash.all.debug.js:2783 [1091] Manifest has been refreshed at Tue Oct 25 2016 13:24:56 GMT-0300 (UYT)[1477412696.161]
dash.all.debug.js:2783 [1093] SegmentTimeline detected using calculated Live Edge Time
dash.all.debug.js:2783 [1098] MediaSource attached to element. Waiting on open...
dash.all.debug.js:2783 [1169] MediaSource is open!
dash.all.debug.js:2783 [1172] Duration successfully set to: 4945.66675
dash.all.debug.js:2783 [1174] Added 0 inline events
dash.all.debug.js:2783 [1176] video codec: video/mp4;codecs="avc1.4D401E"
dash.all.debug.js:2783 [1199] Schedule controller stopping for video
dash.all.debug.js:2783 [1202] Last saved bitrate for video was 2328
dash.all.debug.js:2783 [1223] audio codec: audio/mp4;codecs="mp4a.40.2"
dash.all.debug.js:2783 [1293] Schedule controller stopping for audio
dash.all.debug.js:2783 [1297] No text data.
dash.all.debug.js:2783 [1298] No fragmentedText data.
dash.all.debug.js:2783 [1299] No embeddedText data.
dash.all.debug.js:2783 [1300] No muxed data.
dash.all.debug.js:2783 [1303] Start Event Controller
dash.all.debug.js:2783 [1306] Schedule controller starting for video
dash.all.debug.js:2783 [1314] Schedule controller starting for audio
dash.all.debug.js:2783 [1523] Init fragment finished loading saving to video's init cache
dash.all.debug.js:2783 [1533] Init fragment finished loading saving to audio's init cache
dash.all.debug.js:2783 [1538] DRM: onNeedKey
dash.all.debug.js:2783 [1540] DRM: initData: 戮pssh 職冒y聵@B聠芦聮忙[脿聢_聲 聻聻 聰< W R M H E A D E R x m l n s = " h t t p : / / s c h e m a s . m i c r o s o f t . c o m / D R M / 2 0 0 7 / 0 3 / P l a y R e a d y H e a d e r " v e r s i o n = " 4 . 0 . 0 . 0 " > < D A T A > < P R O T E C T I N F O > < K E Y L E N > 1 6 < / K E Y L E N > < A L G I D > A E S C T R < / A L G I D > < / P R O T E C T I N F O > < K I D > Z x i u 0 j U d + 0 y X o i + t 0 P / N l g = = < / K I D > < C H E C K S U M > E e n m h J s A O o E = < / C H E C K S U M > < L A _ U R L > h t t p : / / l s p r n s m c 2 . b o l d m s s . c o m / c x p l a y r e a d y / r i g h t s m a n a g e r . a s m x < / L A _ U R L > < / D A T A > < / W R M H E A D E R > apssh 铆茂聥漏y脰J脦拢脠'脺脮 !铆 A脪庐g 5L没聴垄/颅脨每脥聳Conax"$d2ae1867-1d35-4cfb-97a2-2fadd0ffcd96
dash.all.debug.js:28563 It is recommended that a robustness level be specified. Not specifying the robustness level could result in unexpected behavior in the future, potentially including failure to play.
dash.all.debug.js:2783 [1546] Getting the request for video time : 0
dash.all.debug.js:2783 [1548] SegmentTimeline: 0 / 4945.66675
dash.all.debug.js:2783 [1560] DRM: onNeedKey
dash.all.debug.js:2783 [1565] DRM: initData: 戮pssh 職冒y聵@B聠芦聮忙[脿聢_聲 聻聻 聰< W R M H E A D E R x m l n s = " h t t p : / / s c h e m a s . m i c r o s o f t . c o m / D R M / 2 0 0 7 / 0 3 / P l a y R e a d y H e a d e r " v e r s i o n = " 4 . 0 . 0 . 0 " > < D A T A > < P R O T E C T I N F O > < K E Y L E N > 1 6 < / K E Y L E N > < A L G I D > A E S C T R < / A L G I D > < / P R O T E C T I N F O > < K I D > Z x i u 0 j U d + 0 y X o i + t 0 P / N l g = = < / K I D > < C H E C K S U M > E e n m h J s A O o E = < / C H E C K S U M > < L A _ U R L > h t t p : / / l s p r n s m c 2 . b o l d m s s . c o m / c x p l a y r e a d y / r i g h t s m a n a g e r . a s m x < / L A _ U R L > < / D A T A > < / W R M H E A D E R > apssh 铆茂聥漏y脰J脦拢脠'脺脮 !铆 A脪庐g 5L没聴垄/颅脨每脥聳Conax"$d2ae1867-1d35-4cfb-97a2-2fadd0ffcd96
dash.all.debug.js:2783 [1597] DRM: KeySystem Access Granted (com.widevine.alpha)! Selecting key system...
dash.all.debug.js:2783 [1629] Getting the request for audio time : 0
dash.all.debug.js:2783 [1639] SegmentTimeline: 0 / 4945.66675
dash.all.debug.js:2783 [1669] DRM: Ignoring initData because we have already seen it!
dash.all.debug.js:2783 [1685] Native video element event: loadedmetadata
dash.all.debug.js:2783 [1741] DRM: Session created. SessionID = sid16
dash.all.debug.js:2783 [1745] Native video element event: play
dash.all.debug.js:2783 [1748] Native video element event: playing
dash.all.debug.js:2783 [1752] DRM: onKeyMessage
dash.all.debug.js:2783 [1903] DRM: onKeyMessage
dash.all.debug.js:2783 [2044] Buffered Range for type: audio : 0 - 5.016062
dash.all.debug.js:2783 [2046] Got enough buffer to start.
dash.all.debug.js:2783 [3004] Buffered Range for type: video : 0 - 5.005
dash.all.debug.js:2783 [3007] Got enough buffer to start.
dash.all.debug.js:2783 [3014] ThroughputRule requesting switch to index: 6 type: video Priority: Default Average throughput 4738 kbps
dash.all.debug.js:2783 [3318] Init fragment finished loading saving to video's init cache
dash.all.debug.js:2783 [3321] Buffered Range for type: video : 0 - 5.005
dash.all.debug.js:2783 [3322] DRM: onNeedKey
dash.all.debug.js:2783 [3323] DRM: initData: 戮pssh 職冒y聵@B聠芦聮忙[脿聢_聲 聻聻 聰< W R M H E A D E R x m l n s = " h t t p : / / s c h e m a s . m i c r o s o f t . c o m / D R M / 2 0 0 7 / 0 3 / P l a y R e a d y H e a d e r " v e r s i o n = " 4 . 0 . 0 . 0 " > < D A T A > < P R O T E C T I N F O > < K E Y L E N > 1 6 < / K E Y L E N > < A L G I D > A E S C T R < / A L G I D > < / P R O T E C T I N F O > < K I D > Z x i u 0 j U d + 0 y X o i + t 0 P / N l g = = < / K I D > < C H E C K S U M > E e n m h J s A O o E = < / C H E C K S U M > < L A _ U R L > h t t p : / / l s p r n s m c 2 . b o l d m s s . c o m / c x p l a y r e a d y / r i g h t s m a n a g e r . a s m x < / L A _ U R L > < / D A T A > < / W R M H E A D E R > apssh 铆茂聥漏y脰J脦拢脠'脺脮 !铆 A脪庐g 5L没聴垄/颅脨每脥聳Conax"$d2ae1867-1d35-4cfb-97a2-2fadd0ffcd96
dash.all.debug.js:28563 It is recommended that a robustness level be specified. Not specifying the robustness level could result in unexpected behavior in the future, potentially including failure to play.
dash.all.debug.js:2783 [3328] Getting the request for video time : 5.005
dash.all.debug.js:2783 [3329] SegmentTimeline: 0 / 4945.66675
dash.all.debug.js:2783 [3330] Getting the next request at index: 1
dash.all.debug.js:2783 [3330] SegmentTimeline: 5.005 / 4945.66675
dash.all.debug.js:2783 [3367] DRM: KeySystem Access Granted
dash.all.debug.js:2783 [3368] DRM: Ignoring initData because we have already seen it!
dash.all.debug.js:2783 [4053] Getting the request for audio time : 5.0160833333333334
fabirydel
👍1
All 8 comments
Maybe on these old devices there is implemented a different version of the EME spec. You can change the used EME version in Protection.js function getProtectionModel
bwidtmann
on 27 Oct 2016
👍1
I checked and both devices are executing the same code in getProtectionModel:
function getProtectionModel(config) {
var log = config.log;
var eventBus = config.eventBus;
var videoElement = config.videoModel.getElement();
if (videoElement.onencrypted !== undefined && videoElement.mediaKeys !== undefined && navigator.requestMediaKeySystemAccess !== undefined && typeof navigator.requestMediaKeySystemAccess === 'function') {
log('EME detected on this user agent! (ProtectionModel_21Jan2015)');
return (0, _modelsProtectionModel_21Jan20152['default'])(context).create({ log: log, eventBus: eventBus });
} else if (getAPI(videoElement, APIS_ProtectionModel_3Feb2014)) {
log('EME detected on this user agent! (ProtectionModel_3Feb2014)');
return (0, _modelsProtectionModel_3Feb20142['default'])(context).create({ log: log, eventBus: eventBus, api: getAPI(videoElement, APIS_ProtectionModel_3Feb2014) });
} else if (getAPI(videoElement, APIS_ProtectionModel_01b)) {
log('EME detected on this user agent! (ProtectionModel_01b)');
return (0, _modelsProtectionModel_01b2['default'])(context).create({ log: log, eventBus: eventBus, api: getAPI(videoElement, APIS_ProtectionModel_01b) });
} else {
log('No supported version of EME detected on this user agent! - Attempts to play encrypted content will fail!');
return null;
}
}
Both go through the very first 'if' statement, so i guess this isn't the problem?
fabirydel
on 27 Oct 2016
yes I know that on both devices the same protection model is used. What I mean is change the protection model only for the Android 4.4 device. There could be a wrong auto detection.
bwidtmann
on 28 Oct 2016
Ok i see, sorry, i didn't quite get that.
I changed it so that the Android 4.4 device would use the protection data on the second 'if' statement, the
DRM: Error selecting key system! -- Error selecting keys system (com.widevine.alpha)! Could not create MediaKeys -- TODO
error is gone but the CAN_PLAY event never gets triggered. Same thing happens on higher Android versions when using a protection data different from the first one.
With the 3rd protection data option i get
dash.all.debug.js:28067 Uncaught TypeError: Cannot read property 'keyerror' of null
on all devices.
fabirydel
on 28 Oct 2016
We will be very grateful if someone could give us feedback with that problem! We need to play widevine on android 4.4.2, and we cannot get the solution!
djmaxisauce
on 11 Nov 2016
👍2
@fabirydel @djmaxisauce Is this still an issue or can we close this ticket?
dsilhavy
on 17 Mar 2020
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
![stale[bot] picture](https://avatars.githubusercontent.com/in/1724?v=4&s=40)
stale[bot]
on 26 Feb 2021
This issue has been automatically closed because no further activity occurred. If you think this issue is still relevant please reopen it. Thank you for your contributions.
stale[bot]
on 5 Mar 2021
Was this page helpful?
0 / 5 - 0 ratings
Related issues
mattlohkamp
路
4Comments
bbert
路
5Comments
redd29
路
4Comments
sandersaares
路
5Comments
fabienvallee
路
3Comments
Most helpful comment
We will be very grateful if someone could give us feedback with that problem! We need to play widevine on android 4.4.2, and we cannot get the solution!