Difference between revisions of "Flash DRM content"

From ArchWiki
Jump to: navigation, search
(+ external link)
(updated info regarding flashplugin version 24 and newer)
 
(19 intermediate revisions by 10 users not shown)
Line 1: Line 1:
[[Category:Player]]
+
[[Category:Multimedia players]]
If you try to watch Amazon Instant Video, you may see the following error: '''''an error occurred and your player could not be updated'''''. This likely indicates that the video is protected with DRM and that the Flash Player could not perform some of the functions required to securely deliver the protected content.
+
[[ja:Flash DRM コンテンツ]]
 +
DRM content on Flash still requires HAL to play. This is apparent for example with Google Play Movies, Amazon Instant Video, WatchESPN or Demand 5 (Channel 5 UK). If you attempt to play a DRM-protected content without HAL, you may see the following error: {{ic|an error occurred and your player could not be updated}}.
  
To deliver DRM-protected content, Flash calls several functions provided by the HAL daemon and its libraries. While Flash-based players remain popular, HAL has been deprecated and is not commonly installed on newer systems. To provide the necessary HAL functionality on such systems, you can either install the full HAL package and run the HAL daemon or install a modified HAL library 'stub' that uses the modern UDisks daemon instead.
+
To deliver DRM-protected content, Flash calls several functions provided by the HAL daemon and its libraries. While Flash-based players remain popular, HAL has been deprecated and is not commonly installed on newer systems. To provide the necessary HAL functionality on such systems, you can either install the full HAL package and run the HAL daemon or install a modified HAL library "stub" that uses the modern UDisks daemon instead.
 +
 
 +
{{Note|The NPAPI plugin {{Pkg|flashplugin}} supports DRM until version 11.2.202.644. The PPAPI {{AUR|pepper-flash}} does not support DRM at all.}}
 +
{{Warning|With the current versions of the NPAPI plugin {{Pkg|flashplugin}} and the PPAPI plugin {{AUR|pepper-flash}} as of May 2017 there is no known way to support Flash DRM content.}}
  
 
== Using the HAL package ==
 
== Using the HAL package ==
Line 54: Line 58:
 
== Using the modified libhal stub ==
 
== Using the modified libhal stub ==
  
As an alternative to installing all of HAL, you can install a modified version of the libhal library from the [[Arch User Repository|AUR]] that uses the modern UDisks daemon instead of the deprecated HAL. Note that this libhal provides just enough of the HAL functionality to meet Flash's needs for copy-protected delivery: if you have other programs that require HAL, this stub probably won't satisfy them and you should use the full hal package instead.
+
As an alternative to installing all of HAL, you can install a modified version of the libhal library from the [[AUR]] that uses the modern UDisks daemon instead of the deprecated HAL. Note that this libhal provides just enough of the HAL functionality to meet Flash's needs for copy-protected delivery: if you have other programs that require HAL, this stub probably won't satisfy them and you should use the full hal package instead.
  
 
=== Installing UDisks and hal-flash ===
 
=== Installing UDisks and hal-flash ===
  
You will need to install {{AUR|hal-flash}} from the [[AUR]], which relies on [[udev#udisks|UDisks]].
+
You will need to install {{AUR|hal-flash}} from the [[AUR]], which relies on [[Udisks]].
  
 
=== Running UDisks ===
 
=== Running UDisks ===
Line 64: Line 68:
 
Since the libhal stub passes its calls to UDisks, UDisks should be running before you attempt to play DRM-protected Flash videos.
 
Since the libhal stub passes its calls to UDisks, UDisks should be running before you attempt to play DRM-protected Flash videos.
  
Make sure that {{ic|udisks.service}} is started, see [[systemd#Using units]] for details.
+
Make sure that {{ic|udisks2.service}} is started, see [[systemd#Using units]] for details.
  
 
== Remove Flash Player cached files ==
 
== Remove Flash Player cached files ==
Line 70: Line 74:
 
To get a fresh start after installing the package(s), remove some Flash Player cached files:
 
To get a fresh start after installing the package(s), remove some Flash Player cached files:
  
  $ cd ~/.adobe/Flash_Player
+
  $ rm -rf ~/.adobe/Flash_Player/{NativeCache,AssetCache,APSPrivateData2}
$ rm -rf NativeCache AssetCache APSPrivateData2
 
  
 
== See also ==
 
== See also ==
  
 
* [http://isenmann.blogspot.gr/2012/08/watching-movies-from-google-play-with.html Watching movies from Google Play on Arch Linux]
 
* [http://isenmann.blogspot.gr/2012/08/watching-movies-from-google-play-with.html Watching movies from Google Play on Arch Linux]

Latest revision as of 00:58, 6 May 2017

DRM content on Flash still requires HAL to play. This is apparent for example with Google Play Movies, Amazon Instant Video, WatchESPN or Demand 5 (Channel 5 UK). If you attempt to play a DRM-protected content without HAL, you may see the following error: an error occurred and your player could not be updated.

To deliver DRM-protected content, Flash calls several functions provided by the HAL daemon and its libraries. While Flash-based players remain popular, HAL has been deprecated and is not commonly installed on newer systems. To provide the necessary HAL functionality on such systems, you can either install the full HAL package and run the HAL daemon or install a modified HAL library "stub" that uses the modern UDisks daemon instead.

Note: The NPAPI plugin flashplugin supports DRM until version 11.2.202.644. The PPAPI pepper-flashAUR does not support DRM at all.
Warning: With the current versions of the NPAPI plugin flashplugin and the PPAPI plugin pepper-flashAUR as of May 2017 there is no known way to support Flash DRM content.

Using the HAL package

Install the halAUR package from the AUR. You will need to install hal-infoAUR first as it is a dependency for halAUR.

Running the HAL daemon

The HAL daemon is managed by hal.service, which can be controlled by systemctl.

Alternatively, one can use the following script, which also takes care of cleaning the cache.

#!/bin/bash

## written by Mark Lee <bluerider>
## using information from <https://wiki.archlinux.org/index.php/Chromium#Google_Play_.26_Flash>

## Start and stop Hal service on command for Google Play Movie service

function main () {  ## run the main insertion function
     clear-cache;  ## remove adobe cache
     start-hal;  ## start the hal daemon
     read -p "Press 'enter' to stop hal";  ## pause the command line with a read line
     stop-hal;  ## stop the hal daemon
}

function clear-cache () {  ## remove adobe cache
     cd ~/.adobe/Flash_Player;  ## go to Flash player user directory
     rm -rf NativeCache AssetCache APSPrivateData2;  ## remove cache
}

function start-hal () {  ## start the hal daemon
     sudo systemctl start hal.service && ( ## systemd : start hal daemon
          echo "Started hal service..."
) || (
          echo "Failed to start hal service!") 
}

function stop-hal () {  ## stop the hal daemon
sudo systemctl stop hal.service && (  ## systemd : stop hal daemon
          echo "Stopped hal service..."
     ) || (
          echo "Failed to stop hal service!"
     )
}

main;  ## run the main insertion function

Using the modified libhal stub

As an alternative to installing all of HAL, you can install a modified version of the libhal library from the AUR that uses the modern UDisks daemon instead of the deprecated HAL. Note that this libhal provides just enough of the HAL functionality to meet Flash's needs for copy-protected delivery: if you have other programs that require HAL, this stub probably won't satisfy them and you should use the full hal package instead.

Installing UDisks and hal-flash

You will need to install hal-flashAUR from the AUR, which relies on Udisks.

Running UDisks

Since the libhal stub passes its calls to UDisks, UDisks should be running before you attempt to play DRM-protected Flash videos.

Make sure that udisks2.service is started, see systemd#Using units for details.

Remove Flash Player cached files

To get a fresh start after installing the package(s), remove some Flash Player cached files:

$ rm -rf ~/.adobe/Flash_Player/{NativeCache,AssetCache,APSPrivateData2}

See also