Hello StreamFab Support Team,I am experiencing an issue when attempting to download the latest episodes from Viu using the DRM MPD download feature in StreamFab. While older episodes download and play correctly, the new episodes are downloaded as MP4 files but appear corrupted. The downloaded video exhibits the following problems: Audio-Video Mismatch: The video and audio are not synchronized; the faces in the video do not match the audio dialogue.Playback Issues: The video plays intermittently, pausing or stuttering, making it unwatchable. Examples for reference:Older episode (downloads correctly): https://www.viu.com/ott/za/en/vod/2641257/Skeem-Saam-S14Latest episodes (show the issue): https://www.viu.com/ott/za/en/vod/2665775/Skeem-Saam-S14 https://www.viu.com/ott/za/en/vod/2665774/Skeem-Saam-S14 https://www.viu.com/ott/za/en/vod/2664564/Skeem-Saam-S14 Additional Information:No login or premium subscription is required to access these episodes.The website requires a South Africa network to access the content, which I have ensured while testing.Older episodes still download and play correctly, so this appears to be an issue with newer DRM-protected MPD streams from Viu.Downloaded files are always in MP4 format but are corrupted or stuttering. It seems like a change in Viu’s streaming DRM or encoding may have affected the download process for newer episodes. I kindly request your team to investigate this issue and provide a fix or update for StreamFab so that new episodes can be downloaded correctly.Please let me know if you require any log files or further details from my side to reproduce the issue.Thank you for your attention.

Issue Downloading New Episodes – DRM MPD Corruption

sumit098

Hello StreamFab Support Team,

I am experiencing an issue when attempting to download the latest episodes from Viu using the DRM MPD download feature in StreamFab. While older episodes download and play correctly, the new episodes are downloaded as MP4 files but appear corrupted. The downloaded video exhibits the following problems:

Audio-Video Mismatch: The video and audio are not synchronized; the faces in the video do not match the audio dialogue.
Playback Issues: The video plays intermittently, pausing or stuttering, making it unwatchable.

Examples for reference:

Older episode (downloads correctly):
https://www.viu.com/ott/za/en/vod/2641257/Skeem-Saam-S14
Latest episodes (show the issue):
https://www.viu.com/ott/za/en/vod/2665775/Skeem-Saam-S14
https://www.viu.com/ott/za/en/vod/2665774/Skeem-Saam-S14
https://www.viu.com/ott/za/en/vod/2664564/Skeem-Saam-S14

Additional Information:

No login or premium subscription is required to access these episodes.
The website requires a South Africa network to access the content, which I have ensured while testing.
Older episodes still download and play correctly, so this appears to be an issue with newer DRM-protected MPD streams from Viu.
Downloaded files are always in MP4 format but are corrupted or stuttering.

It seems like a change in Viu’s streaming DRM or encoding may have affected the download process for newer episodes. I kindly request your team to investigate this issue and provide a fix or update for StreamFab so that new episodes can be downloaded correctly.

Please let me know if you require any log files or further details from my side to reproduce the issue.

Thank you for your attention.

Germania

I downloaded epi 39 with 6250 and epi 40 with 6251 ..
.. both videos dl fine and result play without issues

So I can't confirm 2. Playback Issues
but 1. Audio-Video Mismatch is the same for both ..

.. for s14e39 I see this info in result:
video
Duration : 24 min 44 s
Source duration : 3 min 16 s
audio
Duration : 24 min 35 s
Source duration : 24 min 44 s

I dl the audio manually (using yt-dlp, without SF) and the result is the same !

> It seems like a change in Viu’s streaming DRM or encoding may have affected the download process for newer episodes

I would say the problem has nothing to do with DRM ..
.. but with the ad breaks, at the black markings:

sumit098

I downloaded epi 39 with 6250 and epi 40 with 6251 ..
.. both videos dl fine and result play without issues

So I can't confirm 2. Playback Issues
but 1. Audio-Video Mismatch is the same for both ..

.. for s14e39 I see this info in result:
video
Duration : 24 min 44 s
Source duration : 3 min 16 s
audio
Duration : 24 min 35 s
Source duration : 24 min 44 s

I dl the audio manually (using yt-dlp, without SF) and the result is the same !

> It seems like a change in Viu’s streaming DRM or encoding may have affected the download process for newer episodes

I would say the problem has nothing to do with DRM ..
.. but with the ad breaks, at the black markings:

Germania

Hi Germania

Thanks for the info! I’m just a normal regular user so I can’t manually fix audio-video mismatches. I see older episodes download fine, but the new ones are slightly out of sync—maybe due to ad breaks or encoding changes.

Do you or anyone else have any workaround or solution for this?

Also, I’ve noticed this issue has been happening for the past 4–5 StreamFab updates, so I don’t think the StreamFab team is paying much attention to it.

Germania

Also, I’ve noticed this issue has been happening for the past 4–5 StreamFab updates
sumit098

SF < 6247 are no more usable (info) ..
.. so I can't say if changes made by SF (don't think so) or by Viu
(So far, I have only tested Viu.tv in Hong Kong - it's different)

> Do you or anyone else have any workaround or solution for this?

Currently I can only say that manually dl (without SF) have the same asynchron result
(no removable ads in mpd) - but playing in SF is synchron

sumit098

SF < 6247 are no more usable (info) ..
.. so I can't say if changes made by SF (don't think so) or by Viu
(So far, I have only tested Viu.tv in Hong Kong - it's different)

> Do you or anyone else have any workaround or solution for this?

Currently I can only say that manually dl (without SF) have the same asynchron result
(no removable ads in mpd) - but playing in SF is synchron
Germania

It seems that only StreamFab can properly fix this in a future update by improving how it handles segments and ad breaks. Unfortunately, for now, StreamFab is essentially unusable for me, as this was my main purpose for using it and I don’t download anything else.

Germania

Do you or anyone else have any workaround or solution for this?
sumit098

I get the correct audio only with (paid) TubeDigger ..
.. but you can get the correct files (after free register) at:
[code]https://sabc-plus.com/show/229734/Skeem-Saam[/code]

FHD, not DRM protected and logo + ad free !

sumit098

yah i am using it alredy but but the main issue for me is time. On SABC the videos arrive quite late, and for my work I need them fast, which I can only get directly from Viu

Germania

> for my work I need them fast, which I can only get directly from Viu

Then you should use Viu Premium with No Ads

LiamMaxwell93

I went back to version 2648 it still downloads ok

Germania

I went back to version 2648 it still downloads ok
LiamMaxwell93

I think you posted in wrong thread .. you mean U ?
=> it's here (where I wrote that 6250 works)

viu.com in ZA have same problem with 6248

Dado29

6251 DRM MPD downloader not working for HRTi and Nova plus Croatia, RTS Planeta Serbia also. No download button.

6250 is OK

october262

Hi Germania

Thanks for the info! I’m just a normal regular user so I can’t manually fix audio-video mismatches. I see older episodes download fine, but the new ones are slightly out of sync—maybe due to ad breaks or encoding changes.

Do you or anyone else have any workaround or solution for this?

Also, I’ve noticed this issue has been happening for the past 4–5 StreamFab updates, so I don’t think the StreamFab team is paying much attention to it.
sumit098

have you tried switching to MKV and see if you still get the audio-video mismatches on the new episodes ??

Germania

have you tried switching to MKV and see if you still get the audio-video mismatches on the new episodes ??
october262

I tried it manually with mkv and shaka-packager instead of mp4 and mp4decrypt ..
.. but never with mkvtoolnix in SF => and yes, it is synchronized with ep40 for me !

Germania

6251 DRM MPD downloader not working for HRTi and Nova plus Croatia, RTS Planeta Serbia also. No download button.

6250 is OK
Dado29

I can confirm this for hrti.hrt.hr - same
[code][Info]: getCdmInfo found v: 0, a: 0[/code]
like for U here

sumit098

I tried it manually with mkv and shaka-packager instead of mp4 and mp4decrypt ..
.. but never with mkvtoolnix in SF => and yes, it is synchronized with ep40 for me !
Germania

MKV works fine for you with ep40. Could you please share the complete manual process you used with shaka-packager instead of mp4/mp4decrypt?

It would be very helpful if you could explain:

How you decrypted the streams (exact command/steps).
How you combined them into MKV (tools/commands).
Any sync adjustments you had to make.

I want to try the same manual method to fix the audio-video mismatch issue.

Germania

Could you please share the complete manual process you used with shaka-packager instead of mp4/mp4decrypt?
sumit098

I don't know why, because it works and is synchron with mkvmerge in SF ..

.. first you need the mpd url (works only for you and a limited time)

Open DevTools in your Browser (F12), click on Network and filter: mpd
Now play (or reload) your episode, so you should see a mpd at the left.
(Alternate use Extension like cat-catch, The Stream Detector or MPD Detector)

Copy this url (rightclick) and use this as "your mpd url" with N_m3u8DL-RE
(you need also ffmpeg.exe + mkvmerge.exe + shaka-packager.exe in dir or path)
[code]N_m3u8DL-RE -mt true -M format=mkv:muxer=mkvmerge --use-shaka-packager --key 6ac13f03745f039002836ceb7555eac9:0c4b73c782ee1df2c1eaeda45ebd0133 "your mpd url"[/code]

-= Open link in new tab for larger screenshot =-

sumit098

I don't know why, because it works and is synchron with mkvmerge in SF ..

.. first you need the mpd url (works only for you and a limited time)

-= Open link in new tab for larger screenshot =-
Germania

how we can get Decryption Key

sumit098

I don't know why, because it works and is synchron with mkvmerge in SF ..

.. first you need the mpd url (works only for you and a limited time)

Open DevTools in your Browser (F12), click on Network and filter: mpd
Now play (or reload) your episode, so you should see a mpd at the left.
(Alternate use Extension like cat-catch, The Stream Detector or MPD Detector)

Copy this url (rightclick) and use this as "your mpd url" with N_m3u8DL-RE
(you need also ffmpeg.exe + mkvmerge.exe + shaka-packager.exe in dir or path)
[code]N_m3u8DL-RE -mt true -M format=mkv:muxer=mkvmerge --use-shaka-packager --key 6ac13f03745f039002836ceb7555eac9:0c4b73c782ee1df2c1eaeda45ebd0133 "your mpd url"[/code]

-= Open link in new tab for larger screenshot =-
Germania

i am abel to download ep40 mkv file working correctly but other episodes are not working reason decryption key issue video not playabel can you tell me way to get decryption key for each episode

Germania

can you tell me way to get decryption key for each episode
sumit098

Nope, never in this forum - look at the stickies at videohelp

ep39:
[code]d5fed5c00a630f6551fca622c6b777fb:d45d49670b0452f3523b16279e6334aa[/code]
ep41:
[code]437bc4627cd046b39d8d0cd254565f5f:7eafe4cf21be670c042445aa985579ed[/code]

Germania

> for my work I need them fast, which I can only get directly from Viu

ep41 is already DRM-free at sabc-plus.com/show/229734/Skeem-Saam