Merge pull request #13877 from nextcloud/backport/13798/stable31

[stable31] mp3 previews disabled by default

admin_manual/configuration_files/previews_configuration.rst

@@ -13,7 +13,6 @@ The following image shows some examples of previews of various file types.
 By default, Nextcloud can generate previews for the following filetypes:
 
 * Images files
-* Cover of MP3 files
 * Text documents
 
 .. note:: Nextcloud can also generate previews of other file types (such as PDF, SVG,

admin_manual/installation/server_tuning.rst

@@ -223,7 +223,6 @@ Nextcloud to use Imaginary by editing your `config.php`:
 
     <?php
     'enabledPreviewProviders' => [
-        'OC\Preview\MP3',
         'OC\Preview\TXT',
         'OC\Preview\MarkDown',
         'OC\Preview\OpenDocument',

admin_manual/release_notes/upgrade_to_31.rst

@@ -44,4 +44,10 @@ But if you need to set a new custom value you need now to use the system configu
 Monitoring: Counting of active users
 ------------------------------------
 
-Starting with Nextcloud 31.0.6 the monitoring app was adjusted to count the active users in the same way as occ user:report and the support app.
+Starting with Nextcloud 31.0.6 the monitoring app was adjusted to count the active users in the same way as occ user:report and the support app.
+
+Previews
+--------
+
+Starting with Nextcloud 31.0.10, the preview provider for MP3 files, which reads cover images embedded in the files, is disabled by default for performance and stability reasons.
+See :doc:`../configuration_files/previews_configuration` for details on how to enable or disable the preview provider.

user_manual/files/access_webgui.rst

@@ -49,16 +49,16 @@ streaming, and it doesn't work in your Web browser, it may be a browser issue. S
 File controls
 -------------
 
-Nextcloud can display thumbnail previews for image files, MP3 covers,
-and text files, if this enabled by your server administrator. Hover your cursor
-over a file or folder to expose the controls for the following operations:
+Nextcloud can display thumbnail previews for various file types, such as images, audio files, and text files.
+The specific types supported are up to the server administrator.
+Hover your cursor over a file or folder to expose the controls for the following operations:
 
 Favorites
   Click the star to the left of the file icon to mark it as a favorite:
-  
+
   .. figure:: ../images/files_page-1.png
    :alt: Marking Favorite files.
-   
+
   You can also quickly find all of your favorites with the Favorites filter on the left
   sidebar.
 
@@ -179,5 +179,5 @@ Creating or connecting to a Federation Share link
 -------------------------------------------------
 
 Federated Cloud Sharing allows you to mount file shares from remote Nextcloud
-servers, and manage them just like a local share. See :doc:`federated_cloud_sharing` 
+servers, and manage them just like a local share. See :doc:`federated_cloud_sharing`
 to learn to how to create and connect to new Federated Cloud shares.