Why does this stream play on Windows but fails on Linux?

[Paco8]

Bug report

Describe the bug

Here is a clear and concise description of what the problem is:

This is probably not a bug but my mistake. This stream plays fine on Windows (and Android TV) but fails on Linux.

Expected Behavior

Here is a clear and concise description of what was expected to happen:

The stream should play on all operating systems.

Actual Behavior

Playback fails on Linux.

Possible Fix

To Reproduce

Steps to reproduce the behavior:

Debuglog

The debuglog can be found here:

This is the log from Linux (not playing): https://paste.kodi.tv/iguvijipub.kodi

It seems inputstream.adaptive can't decrypt the stream, but why?

This is the log from Windows: https://paste.kodi.tv/yagavejexe.kodi

MPD/M3U8s/ISM

An example or copy of a manifest (or manifests for HLS - master and variants) can be found here: manifest.txt

Screenshots

Here are some links or screenshots to help explain the problem:

Additional context or screenshots (if appropriate)

Here is some additional context or explanation that might help:

Your Environment

Used Operating system:

• [ ] Android

• [ ] iOS

• [ ] tvOS

• [x] Linux

• [ ] OSX

• [x] Windows

• [ ] Windows UWP

• Operating system version/name: Linux (Ubuntu 22) and Windows 11

• Kodi version: 20.2 (Linux), 21.0-BETA3 (Windows)

• inputstream.adaptive version: 20.3.13 and 21.4.3

note: Once the issue is made we require you to update it with new information should that be required. Team Kodi will consider your problem report however, we will not make any promises the problem will be solved.

[CastagnaIT]

looks like on 20.2 (Linux) its not able to get streams and so cannot playback idk the reasons but seem to be not a streaming problem but an ISA old bug

i suggest to try use Kodi 21 on linux to see if playback works

[Paco8]

It doesn't work either in Kodi 21, but now there's no error, but playback never starts (spinning circle).

Log: https://paste.kodi.tv/juwewamoto.kodi

[CastagnaIT]

the log of k21 linux, show only a subtitle stream apparently without audio and video please attach the manifest of this video downloaded by isa from windows and linux, so i can see if there are differences

[Paco8]

manifest-linux.txt manifest-windows.txt

[CastagnaIT]

Windows

GetCapabilities: Single decrypt possible

Linux

GetCapabilities: Single decrypt failed, secure path only

could be that the cause is that on linux its needed a higher protection level not available if you are able try comment/remove the following line about SetSecureDecodeNeeded, and re-build isa on linux to see if there is some difference:

diff --git a/src/parser/SmoothTree.cpp b/src/parser/SmoothTree.cpp
index d113b4b5..6bf34cf0 100644
--- a/src/parser/SmoothTree.cpp
+++ b/src/parser/SmoothTree.cpp
@@ -95,7 +95,7 @@ bool adaptive::CSmoothTree::ParseManifest(const std::string& data)
   if (nodeProt)
   {
     period->SetEncryptionState(EncryptionState::ENCRYPTED);
-    period->SetSecureDecodeNeeded(true);
+    //period->SetSecureDecodeNeeded(true);

     pugi::xml_node nodeProtHead = nodeProt.child("ProtectionHeader");
     if (nodeProtHead)

[Paco8]

Unfortunately the latest version fails to build in my system (Ubuntu 22). I can build the version for Kodi 19, but that version doesn't have that line.

[Paco8]

The stream also fails on a Smartphone with Android 12. Log: https://paste.kodi.tv/uqewekahab.kodi

The stream does play in all operating systems if I use a manifest in mpd format. manifest_mpd.txt

Any ideas?

[CastagnaIT]

there is a difference between the SmoothStreaming and the MPD the SS provide the PlayReady DRM (A04F079-9840-4286-AB92-E65BE0885F95) the MPD provide the Widevine DRM (edef8ba9-79d6-4ace-a3c8-27dcd51d21ed)

the MPD with Widevine its right that works the SS PlayReady should work on android (we dont have support for PlayReady on other OS's), maybe this is the case to have a L1 device, or else try "disable secure" from ISA expert settings

i noticed that with the SS manifest we convert the protection to make work with widevine, this is probably the reason for the decrypting problem on linux, idk how can works on windows perhaps just a case idk...

maybe glennguy is able to give you a better answer

[zuzia-dev]

Windows

GetCapabilities: Single decrypt possible

Linux

GetCapabilities: Single decrypt failed, secure path only

could be that the cause is that on linux its needed a higher protection level not available if you are able try comment/remove the following line about SetSecureDecodeNeeded, and re-build isa on linux to see if there is some difference:

diff --git a/src/parser/SmoothTree.cpp b/src/parser/SmoothTree.cpp
index d113b4b5..6bf34cf0 100644
--- a/src/parser/SmoothTree.cpp
+++ b/src/parser/SmoothTree.cpp
@@ -95,7 +95,7 @@ bool adaptive::CSmoothTree::ParseManifest(const std::string& data)
   if (nodeProt)
   {
     period->SetEncryptionState(EncryptionState::ENCRYPTED);
-    period->SetSecureDecodeNeeded(true);
+    //period->SetSecureDecodeNeeded(true);

     pugi::xml_node nodeProtHead = nodeProt.child("ProtectionHeader");
     if (nodeProtHead)

@CastagnaIT Can you add this patch to the official versions? I confirm that it works with another service.

[CastagnaIT]

yeah thanks i can do it but storm caused power surge completely burned out my computer despite it is also line protected currently i have no computer to develop... i need to buy a new computer next week so you need to wait

[CastagnaIT]

@Paco8 can you provide a new debug log when fails on linux? all logs you have previously linked are expired

@zuzia-dev the code change that i posted above, could works for android L1 only, this because SSD_SECURE_DECODER is not set on all others operative systems (like linux or windows)

I confirm that it works with another service.

so you tested on android or what?

[Paco8]

Manifest: manifest_high.txt Log: https://paste.kodi.tv/uyejuxoqah.kodi

By that way, I realized that this manifest fails on Kodi 21 too but works on kodi 19: manifest_medium.txt

Log kodi 21: https://paste.kodi.tv/yapapuqiya.kodi Log kodi 19: https://paste.kodi.tv/evadalahec.kodi

[CastagnaIT]

@Paco8 you are using an old ISA version on Kodi 21 that has some known bugs you must before update to last version 21.5.4 because has been fixed diffirent things, after updated test again and make a new log if nothing changed

[Paco8]

After updating to 21.5.4 the problem with manifest_medium.txt is fixed. This is the log for manifest_high.txt: https://paste.kodi.tv/ixaqiceqaw.kodi

[CastagnaIT]

the "manifest_high" is different, there is a "bad" status of widevine cdm, this line should have status 0 and syscode 0, but: OnSessionKeysChange: Sessionkey DBBA3BCE837CB7B2C7EC9AB957271332 status: 3 syscode: 49

the session key status 3 is kOutputRestricted this means that the license has an HDCP requirement that dont met the current display, and the stream usually cant be played, in some cases you can try fallback to SD, but SD streams must have a different key, and i suspect that this is not the case

now i have no idea how the website play this movie on the linux browser, if it can be played on linux browser should be debugged the browser to try understand if something could be done, there is no way for us investigate by looking at logs

however here we are OT on this issue, the problem where the issue has been opened is different

[zuzia-dev]

@zuzia-dev the code change that i posted above, could works for android L1 only, this because SSD_SECURE_DECODER is not set on all others operative systems (like linux or windows)

I confirm that it works with another service.

so you tested on android or what?

Tested on Linux. With this patch, the stream from one VOD platform worked but in reduced SD quality. Without this patch, even SD did not work.

[CastagnaIT]

@zuzia-dev the code change that i posted above, could works for android L1 only, this because SSD_SECURE_DECODER is not set on all others operative systems (like linux or windows)

I confirm that it works with another service.

so you tested on android or what?

Tested on Linux. With this patch, the stream from one VOD platform worked but in reduced SD quality. Without this patch, even SD did not work.

@zuzia-dev its not clear to me how/what you are testing, since the SSD_SECURE_DECODER flag isnt used on linux, so the decoder cant be triggered also the addon setting to disable the secure decoder is not available under linux if you want open a separate issue and provide all relevants informations your looks like different case from this issue