Extension:TimedMediaHandler
Release status: stable |
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Implementation | Media, API |
Description | Provides integrated support for server-side transcoding, WebM, Ogg Theora, Vorbis, MP3, Speex, and Timed Text |
Author(s) | Michael Dale, Jan Gerber, Tim Starling, James Heinrich, Brooke Vibber, Derk-Jan Hartman |
Latest version | 0.6.0 |
Compatibility policy | Snapshots releases along with MediaWiki. Master is not backward compatible. |
MediaWiki | >= 1.43 |
Database changes | Yes |
Tables | transcode |
License | GNU General Public License 2.0 or later |
Download | |
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Quarterly downloads | 211 (Ranked 32nd) |
Public wikis using | 1,290 (Ranked 218th) |
Translate the TimedMediaHandler extension if it is available at translatewiki.net | |
Issues | Open tasks · Report a bug |
The TimedMediaHandler extension allows you to display audio and video files in wiki pages, using the same syntax as for image files. It includes the VideoJS Player. It has support for subtitles and captions (aka Timed Text), real-time stream switching between multiple WebM and other derivatives, and many other features. TMH server-side support includes options for uploading HTML5 audio and video, multiple transcode profiles to deliver content, playback of MIDI files, metadata parsing for Ogg and WebM videos, and integration with MediaWiki's job queue system for scheduling transcoding jobs.
For new and upcoming developments in 2022 and beyond, see Extension:TimedMediaHandler/2022 work.
Feature overview
[edit]For the player see: VideoJS Player.
For features of the subtitling system, see Commons:Timed Text page.
Syntax synopsis
[edit]In addition to the image embed syntax, Timed Media Handler supports:
- [[File:Video.ogv]]
- Display a video at its nominal size. Displays a still image from the midpoint with a play button to start a pop-up video player.
- [[File:Audio.oga]]
- Show a placeholder for a sound file with a play button. The player will appear inline or as a pop-up if the audio file has closed captioning/subtitles.
- [[File:Midi.mid]]
- Generate digital audio from the music instructions in the MIDI file and show the embedded audio player to play this audio.
- [[File:Video.ogv|thumb]]
- Show a video in a floating thumbnail box
<gallery>File:Video.ogv</gallery>
- Show a video embedded in an image gallery (each clip will popup a dialog for the full player)
- [[File:Video.ogg|thumbtime=1:25]]
- Use a frame from 1 minute 25 seconds into the video as the placeholder image. A single number is taken as an offset in seconds. One can also use HH:MM:SS, e.g., 1:02:22 will be 1 hour, 2 minutes, and 22 seconds into the video. Floating-point seconds are supported (but broken on Wikimedia wikis: phab:T228467).
- [[File:Video.ogg|start=1:25]]
- Temporal media fragments displays a video clip starting at 1 minute 25 seconds into the video. A single number is taken as an offset in seconds. You can also include an end time of the form
end=1:30
which would result in a clip of 5 seconds playing from 1:25 to 1:30. If thumbtime is not provided, the start time will be used for the displayed thumbnail. One can also use HH:MM:SS, e.g. 1:02:22 will be 1 hour, 2 minutes, and 22 seconds into the video. start=
andend=
can also be used as query parameters in the URL for a video's file page.- [[File:Video.ogg|muted]]
- Start the media with muted audio. (introduced in 1.39)
- [[File:Video.ogg|loop]]
- Loop the video continuously. (introduced in 1.39)
- Deprecated
- The syntax words noicon and noplayer are deprecated and do not function. The keyword disablecontrols will likely be deprecated. (See task T135537) It takes a comma-separated list of any of the following values: options, timedText, fullscreen
Client support
[edit]
[[File:Videoonwikipedia.ogv|300px|thumb|...]]
[[File:example.ogg|thumb|...]]
[[File:example.ogg|30px]]
[[File:example.ogg]]
The player works on most modern browsers (see MediaWiki's support matrix). Mobile support is spotty, especially on iOS.
TimedMediaHandler includes a JavaScript compatibility shim for Ogg audio/video that works in Safari, Internet Explorer 10/11, and Microsoft Edge browsers.
Third-party users of MediaWiki may also wish to manually enable MP4 H.264/AAC support for native video and audio playback in Safari/IE/Edge, but when using these formats, you may need a patent license from MPEG-LA for internet broadcasting.
Installation
[edit]You will want a recent version of ffmpeg in order to support encoding to WebM (with the latest version of VP9).
- Download and move the extracted
TimedMediaHandler
folder to yourextensions/
directory.
Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/TimedMediaHandler - Only when installing from Git, run Composer to install PHP dependencies, by issuing
composer install --no-dev
in the extension directory. (See task T173141 for potential complications.) - Add the following code at the bottom of your LocalSettings.php file:
wfLoadExtension( 'TimedMediaHandler' ); $wgFFmpegLocation = '/usr/bin/ffmpeg'; // Most common ffmpeg path on Linux
- Run the update script which will automatically create the necessary database tables that this extension needs.
- Configure as required.
- You may need to increase the allowed memory in $wgMaxShellMemory .
Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.
The extension will automatically add supported file types (except for mp4) to $wgFileExtensions , so you do not need to add video file types manually.
So, after installation change to the directory containing the extension e.g., "../extensions/TimedMediaHandler/" and run composer install --no-dev
, or when updating: composer update --no-dev
.
Alternatively, as well as preferably, add the line "extensions/TimedMediaHandler/composer.json"
to the "composer.local.json" file in the root directory of your wiki e.g.
{
"extra": {
"merge-plugin": {
"include": [
"extensions/TimedMediaHandler/composer.json"
]
}
}
}
Comparison of Wikipedia media encoding options
[edit]As of 2018, Wikimedia sites use VP9.
Sorted by bandwidth tier:
Bitrate | Mbit/s | WebM VP8 | WebM VP9 |
---|---|---|---|
Super Low | 0.08 | 160p | |
Very Low | 0.16 | 160p | 240p |
Low | 0.25 | 240p | 360p |
Moderate | 0.5 | 360p | 480p |
Medium | 1.0 | 480p | 720p |
High | 2.0 | 720p | 1080p |
Very high | 4.0 | 1080p | 1440p |
Super high | 8.0 | 2160p |
Detailed options:
Name | 160P | 240P | 360P | 480P | 720P | 1080P | 160P | 240P | 360P | 480P | 720P | 1080P | 1440P | 2160P | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Container | WebM | ||||||||||||||
Video | Encoding | VP8 | VP9 | ||||||||||||
Max width (pixels) | 288 | 426 | 640 | 854 | 1280 | 1920 | 288 | 426 | 640 | 854 | 1280 | 1920 | 2560 | 4096 | |
Max height (pixels) | 160 | 240 | 360 | 480 | 720 | 1080 | 160 | 240 | 360 | 480 | 720 | 1080 | 1440 | 2160 | |
Bitrate (Mbit/s) | 0.16 | 0.25 | 0.5 | 1.0 | 2.0 | 4.0 | 0.08 | 0.16 | 0.25 | 0.5 | 1.0 | 2.0 | 4.0 | 8.0 | |
Audio | Encoding | Vorbis | Opus | ||||||||||||
Channels | 2 (stereo) | (pass-through) | |||||||||||||
Sampling rate (Hz) | 44100 | 48000 | |||||||||||||
Quality | - | 1 | 2 | 3 | - | (default) |
Configuration
[edit]This page is outdated. |
Here are some configuration variables that may be useful:
// The minimum size for an embedded video player (smaller than this size uses a pop-up player).
$wgMinimumVideoPlayerSize = 200;
// If transcoding is enabled for this wiki (if disabled, no transcode jobs are added, and no transcode status is displayed).
// Note: if remote embedding an asset, we will still check if the remote repo has transcoding enabled and associated flavors
// for that media embed.
$wgEnableTranscode = true;
// Exclude transcoding jobs from the default job runner because they take very long to complete
$wgJobTypesExcludedFromDefaultQueue[] = 'webVideoTranscode';
$wgJobTypesExcludedFromDefaultQueue[] = 'webVideoTranscodePrioritized';
// The total amount of time a transcoding shell command can take:
$wgTranscodeBackgroundTimeLimit = 3600 * 8;
// Maximum amount of virtual memory available to transcoding processes in KB
$wgTranscodeBackgroundMemoryLimit = 2 * 1024 * 1024; // 2GB avconv, ffmpeg2theora mmap resources so virtual memory needs to be high enough
// Maximum file size transcoding processes can create, in KB
$wgTranscodeBackgroundSizeLimit = 3 * 1024 * 1024; // 3GB
// Number of threads to use in avconv for transcoding
$wgFFmpegThreads = 1;
// The NS for TimedText (registered on MediaWiki.org)
// https://www.mediawiki.org/wiki/Extension_namespace_registration
// Note commons pre-dates TimedMediaHandler and should set $wgTimedTextNS = 102 in LocalSettings.php
$wgTimedTextNS = 710;
// Set TimedText namespace for ForeignDBViaLBRepo on a per wikiID basis
// $wgTimedTextForeignNamespaces = [ 'commonswiki' => 102 ];
$wgTimedTextForeignNamespaces = [];
/**
* Default enabled transcodes
*
* -If set to empty array, no derivatives will be created
* -Derivative keys encode settings are defined in WebVideoTranscode.php
*
* -These transcodes are *in addition to* the source file.
* -Only derivatives with a smaller width than the source asset size will be created
* -Regardless of source size, at least one WebM and Ogg source will be created from the $wgEnabledTranscodeSet
* -Derivative jobs are added to the MediaWiki JobQueue the first time the asset is uploaded
* -Derivative should be listed min to max
*/
// Starting from 1.31
// All valid string values are listed in the extension's extension.json file
$wgEnabledTranscodeSet = [
'160p.webm' => true,
'240p.webm' => true,
'360p.webm' => true,
'480p.webm' => true,
'720p.webm' => true,
'1080p.webm' => true,
];
$wgEnabledAudioTranscodeSet = [
'ogg' => true, // ogg+vorbis
'opus' => false, // ogg+opus
'mp3' => true, // raw mp3
'm4a' => false, // mp4+aac (mp4a.40.5)
];
// If mp3 source assets can be ingested:
$wgTmhEnableMp3Uploads = true;
// If mp4 source assets can be ingested:
$wgTmhEnableMp4Uploads = false;
// If you use ffmpeg 2, it can be set to true
$wgUseFFmpeg2 = false;
For transcoding, make sure you have $wgMaxShellMemory
, $wgMaxShellTime
, $wgMaxShellFileSize
are large enough to allow encoding jobs to run and save output. Default values are most likely too low.
Running transcode jobs
[edit]Because transcode jobs are resource intensive, they should not run as part of the normal job queue (see task T29336).
Configure Localsettings.php
with:
$wgJobTypesExcludedFromDefaultQueue[] = 'webVideoTranscode';
$wgJobTypesExcludedFromDefaultQueue[] = 'webVideoTranscodePrioritized';
Setup dedicated jobrunners and request running the jobs by the --type
argument:
php ./maintenance/run.php runJobs --type webVideoTranscode
php ./maintenance/run.php runJobs --type webVideoTranscodePrioritized
It is very important to run these tasks as the webserver user.
A single transcode job for a video can easily take an hour or longer, so ensure the commands have enough time and CPU to run.
Encoding nodes
[edit]To transcode many videos, you might want to run multiple encoding nodes that connect to the master database and access your file store directly. You will need to install ffmpeg.
Minimal install under Debian and Ubuntu
[edit]apt install ffmpeg
Plus, add this to your LocalSettings.php (tested for Devuan ASCII (Archived 2018-09-23 at the Wayback Machine) only):
$wgFFmpegLocation = '/usr/bin/ffmpeg';
Troubleshooting
[edit]Please note that versions of TimedMediaHandler before MediaWiki 1.38 did not work with PostgreSQL. See task T157424.
ffmpeg
– failed to map segment from shared object- You need to increase the allowed memory in $wgMaxShellMemory .
- Class 'getID3' not found
- You need to install the extension's PHP dependencies using Composer; see the installation section.
- Unrecognized option 'max_muxing_queue_size'
- You may be using ffmpeg 2. You need add
$wgUseFFmpeg2 = true;
to yourLocalSettings.php
. - Unrecognized option 'max_muxing_queue_size'
- You may be using ffmpeg 2. You need add
$wgUseFFmpeg2 = true;
to yourLocalSettings.php
. - [exception] […] /index.php?title=Special:Upload Error: Call to undefined method FSFile::getLocalRefPath()
- This extension is incompatible with Extension:EmbedVideo . Uninstall it. You may also need to make sure you did the composer steps properly.
See also
[edit]This extension is being used on one or more Wikimedia projects. This probably means that the extension is stable and works well enough to be used by such high-traffic websites. Look for this extension's name in Wikimedia's CommonSettings.php and InitialiseSettings.php configuration files to see where it's installed. A full list of the extensions installed on a particular wiki can be seen on the wiki's Special:Version page. |
This extension is included in the following wiki farms/hosts and/or packages: This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm. |
- Stable extensions
- Media handling extensions
- API extensions
- GPL licensed extensions
- Extensions in Wikimedia version control
- ArticleContentOnDiff extensions
- ArticleFromTitle extensions
- ArticlePurge extensions
- BeforePageDisplay extensions
- CanonicalNamespaces extensions
- FileDeleteComplete extensions
- FileUndeleteComplete extensions
- FileUpload extensions
- ImageOpenShowImageInlineBefore extensions
- ImagePageAfterImageLinks extensions
- ImagePageFileHistoryLine extensions
- LoadExtensionSchemaUpdates extensions
- MediaWikiPerformAction extensions
- PageDeleteComplete extensions
- PageMoveComplete extensions
- PageSaveComplete extensions
- ParserTestGlobals extensions
- RevisionFromEditComplete extensions
- SkinTemplateNavigation::Universal extensions
- TitleMove extensions
- WgQueryPages extensions
- All extensions
- Extensions requiring Composer with git
- Outdated pages
- Extensions used on Wikimedia
- Extensions included in Canasta
- Extensions included in Fandom
- Extensions included in Miraheze
- Extensions included in WikiForge
- Video player extensions
- Audio player extensions