MediaPlayer
public
class
MediaPlayer
extends Object
implements
AudioRouting,
VolumeAutomation
java.lang.Object | |
↳ | android.media.MediaPlayer |
MediaPlayer class can be used to control playback of audio/video files and streams.
MediaPlayer is not thread-safe. Creation of and all access to player instances should be on the same thread. If registering callbacks, the thread must have a Looper.
Topics covered here are:
Developer Guides
For more information about how to use MediaPlayer, read the Media Playback developer guide.
State Diagram
Playback control of audio/video files and streams is managed as a state machine. The following diagram shows the life cycle and the states of a MediaPlayer object driven by the supported playback control operations. The ovals represent the states a MediaPlayer object may reside in. The arcs represent the playback control operations that drive the object state transition. There are two types of arcs. The arcs with a single arrow head represent synchronous method calls, while those with a double arrow head represent asynchronous method calls.
From this state diagram, one can see that a MediaPlayer object has the following states:
- When a MediaPlayer object is just created using
new
or afterreset()
is called, it is in the Idle state; and afterrelease()
is called, it is in the End state. Between these two states is the life cycle of the MediaPlayer object.- There is a subtle but important difference between a newly constructed
MediaPlayer object and the MediaPlayer object after
reset()
is called. It is a programming error to invoke methods such asgetCurrentPosition()
,getDuration()
,getVideoHeight()
,getVideoWidth()
,setAudioAttributes(android.media.AudioAttributes)
,setLooping(boolean)
,setVolume(float, float)
,pause()
,start()
,stop()
,seekTo(long, int)
,prepare()
orprepareAsync()
in the Idle state for both cases. If any of these methods is called right after a MediaPlayer object is constructed, the user supplied callback method OnErrorListener.onError() won't be called by the internal player engine and the object state remains unchanged; but if these methods are called right afterreset()
, the user supplied callback method OnErrorListener.onError() will be invoked by the internal player engine and the object will be transfered to the Error state. - You must keep a reference to a MediaPlayer instance to prevent it from being garbage
collected. If a MediaPlayer instance is garbage collected,
release()
will be called, causing any ongoing playback to stop. - You must call
release()
once you have finished using an instance to release acquired resources, such as memory and codecs. Once you have calledrelease()
, you must no longer interact with the released instance. - MediaPlayer objects created using
new
is in the Idle state, while those created with one of the overloaded convenientcreate
methods are NOT in the Idle state. In fact, the objects are in the Prepared state if the creation usingcreate
method is successful.
- There is a subtle but important difference between a newly constructed
MediaPlayer object and the MediaPlayer object after
- In general, some playback control operation may fail due to various
reasons, such as unsupported audio/video format, poorly interleaved
audio/video, resolution too high, streaming timeout, and the like.
Thus, error reporting and recovery is an important concern under
these circumstances. Sometimes, due to programming errors, invoking a playback
control operation in an invalid state may also occur. Under all these
error conditions, the internal player engine invokes a user supplied
OnErrorListener.onError() method if an OnErrorListener has been
registered beforehand via
setOnErrorListener(android.media.MediaPlayer.OnErrorListener)
.- It is important to note that once an error occurs, the MediaPlayer object enters the Error state (except as noted above), even if an error listener has not been registered by the application.
- In order to reuse a MediaPlayer object that is in the
Error state and recover from the error,
reset()
can be called to restore the object to its Idle state. - It is good programming practice to have your application register a OnErrorListener to look out for error notifications from the internal player engine.
- IllegalStateException is
thrown to prevent programming errors such as calling
prepare()
,prepareAsync()
, or one of the overloadedsetDataSource
methods in an invalid state.
- Calling
setDataSource(java.io.FileDescriptor)
, orsetDataSource(java.lang.String)
, orsetDataSource(android.content.Context, android.net.Uri)
, orsetDataSource(java.io.FileDescriptor, long, long)
, orsetDataSource(android.media.MediaDataSource)
transfers a MediaPlayer object in the Idle state to the Initialized state.- An IllegalStateException is thrown if setDataSource() is called in any other state.
- It is good programming
practice to always look out for
IllegalArgumentException
andIOException
that may be thrown from the overloadedsetDataSource
methods.
- A MediaPlayer object must first enter the Prepared state
before playback can be started.
- There are two ways (synchronous vs.
asynchronous) that the Prepared state can be reached:
either a call to
prepare()
(synchronous) which transfers the object to the Prepared state once the method call returns, or a call toprepareAsync()
(asynchronous) which first transfers the object to the Preparing state after the call returns (which occurs almost right away) while the internal player engine continues working on the rest of preparation work until the preparation work completes. When the preparation completes or whenprepare()
call returns, the internal player engine then calls a user supplied callback method, onPrepared() of the OnPreparedListener interface, if an OnPreparedListener is registered beforehand viasetOnPreparedListener(android.media.MediaPlayer.OnPreparedListener)
. - It is important to note that the Preparing state is a transient state, and the behavior of calling any method with side effect while a MediaPlayer object is in the Preparing state is undefined.
- An IllegalStateException is
thrown if
prepare()
orprepareAsync()
is called in any other state. - While in the Prepared state, properties such as audio/sound volume, screenOnWhilePlaying, looping can be adjusted by invoking the corresponding set methods.
- There are two ways (synchronous vs.
asynchronous) that the Prepared state can be reached:
either a call to
- To start the playback,
start()
must be called. Afterstart()
returns successfully, the MediaPlayer object is in the Started state.isPlaying()
can be called to test whether the MediaPlayer object is in the Started state.- While in the Started state, the internal player engine calls
a user supplied OnBufferingUpdateListener.onBufferingUpdate() callback
method if a OnBufferingUpdateListener has been registered beforehand
via
setOnBufferingUpdateListener(android.media.MediaPlayer.OnBufferingUpdateListener)
. This callback allows applications to keep track of the buffering status while streaming audio/video. - Calling
start()
has no effect on a MediaPlayer object that is already in the Started state.
- While in the Started state, the internal player engine calls
a user supplied OnBufferingUpdateListener.onBufferingUpdate() callback
method if a OnBufferingUpdateListener has been registered beforehand
via
- Playback can be paused and stopped, and the current playback position
can be adjusted. Playback can be paused via
pause()
. When the call topause()
returns, the MediaPlayer object enters the Paused state. Note that the transition from the Started state to the Paused state and vice versa happens asynchronously in the player engine. It may take some time before the state is updated in calls toisPlaying()
, and it can be a number of seconds in the case of streamed content.- Calling
start()
to resume playback for a paused MediaPlayer object, and the resumed playback position is the same as where it was paused. When the call tostart()
returns, the paused MediaPlayer object goes back to the Started state. - Calling
pause()
has no effect on a MediaPlayer object that is already in the Paused state.
- Calling
- Calling
stop()
stops playback and causes a MediaPlayer in the Started, Paused, Prepared or PlaybackCompleted state to enter the Stopped state.- Once in the Stopped state, playback cannot be started
until
prepare()
orprepareAsync()
are called to set the MediaPlayer object to the Prepared state again. - Calling
stop()
has no effect on a MediaPlayer object that is already in the Stopped state.
- Once in the Stopped state, playback cannot be started
until
- The playback position can be adjusted with a call to
seekTo(long, int)
.- Although the asynchronuous
seekTo(long, int)
call returns right away, the actual seek operation may take a while to finish, especially for audio/video being streamed. When the actual seek operation completes, the internal player engine calls a user supplied OnSeekComplete.onSeekComplete() if an OnSeekCompleteListener has been registered beforehand viasetOnSeekCompleteListener(android.media.MediaPlayer.OnSeekCompleteListener)
. - Please
note that
seekTo(long, int)
can also be called in the other states, such as Prepared, Paused and PlaybackCompleted state. WhenseekTo(long, int)
is called in those states, one video frame will be displayed if the stream has video and the requested position is valid. - Furthermore, the actual current playback position
can be retrieved with a call to
getCurrentPosition()
, which is helpful for applications such as a Music player that need to keep track of the playback progress.
- Although the asynchronuous
- When the playback reaches the end of stream, the playback completes.
- If the looping mode was being set to true with
setLooping(boolean)
, the MediaPlayer object shall remain in the Started state. - If the looping mode was set to false
, the player engine calls a user supplied callback method,
OnCompletion.onCompletion(), if a OnCompletionListener is registered
beforehand via
setOnCompletionListener(android.media.MediaPlayer.OnCompletionListener)
. The invoke of the callback signals that the object is now in the PlaybackCompleted state. - While in the PlaybackCompleted
state, calling
start()
can restart the playback from the beginning of the audio/video source.
Valid and invalid states
Method Name Valid States Invalid States Comments attachAuxEffect {Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Idle, Error} This method must be called after setDataSource. Calling it does not change the object state. getAudioSessionId any {} This method can be called in any state and calling it does not change the object state. getCurrentPosition {Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. getDuration {Prepared, Started, Paused, Stopped, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. getVideoHeight {Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. getVideoWidth {Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. isPlaying {Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. pause {Started, Paused, PlaybackCompleted} {Idle, Initialized, Prepared, Stopped, Error} Successful invoke of this method in a valid state transfers the object to the Paused state. Calling this method in an invalid state transfers the object to the Error state. prepare {Initialized, Stopped} {Idle, Prepared, Started, Paused, PlaybackCompleted, Error} Successful invoke of this method in a valid state transfers the object to the Prepared state. Calling this method in an invalid state throws an IllegalStateException. prepareAsync {Initialized, Stopped} {Idle, Prepared, Started, Paused, PlaybackCompleted, Error} Successful invoke of this method in a valid state transfers the object to the Preparing state. Calling this method in an invalid state throws an IllegalStateException. release any {} After release()
, you must not interact with the object.reset {Idle, Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error} {} After reset()
, the object is like being just created.seekTo {Prepared, Started, Paused, PlaybackCompleted} {Idle, Initialized, Stopped, Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. setAudioAttributes {Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted} {Error} Successful invoke of this method does not change the state. In order for the target audio attributes type to become effective, this method must be called before prepare() or prepareAsync(). setAudioSessionId {Idle} {Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error} This method must be called in idle state as the audio session ID must be known before calling setDataSource. Calling it does not change the object state. setAudioStreamType (deprecated) {Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted} {Error} Successful invoke of this method does not change the state. In order for the target audio stream type to become effective, this method must be called before prepare() or prepareAsync(). setAuxEffectSendLevel any {} Calling this method does not change the object state. setDataSource {Idle} {Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted, Error} Successful invoke of this method in a valid state transfers the object to the Initialized state. Calling this method in an invalid state throws an IllegalStateException. setDisplay any {} This method can be called in any state and calling it does not change the object state. setSurface any {} This method can be called in any state and calling it does not change the object state. setVideoScalingMode {Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} {Idle, Error} Successful invoke of this method does not change the state. setLooping {Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted} {Error} Successful invoke of this method in a valid state does not change the state. Calling this method in an invalid state transfers the object to the Error state. isLooping any {} This method can be called in any state and calling it does not change the object state. setOnBufferingUpdateListener any {} This method can be called in any state and calling it does not change the object state. setOnCompletionListener any {} This method can be called in any state and calling it does not change the object state. setOnErrorListener any {} This method can be called in any state and calling it does not change the object state. setOnPreparedListener any {} This method can be called in any state and calling it does not change the object state. setOnSeekCompleteListener any {} This method can be called in any state and calling it does not change the object state. setPlaybackParams {Initialized, Prepared, Started, Paused, PlaybackCompleted, Error} {Idle, Stopped} This method will change state in some cases, depending on when it's called. setScreenOnWhilePlaying> any {} This method can be called in any state and calling it does not change the object state. setVolume {Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackCompleted} {Error} Successful invoke of this method does not change the state. setWakeMode any {} This method can be called in any state and calling it does not change the object state. start {Prepared, Started, Paused, PlaybackCompleted} {Idle, Initialized, Stopped, Error} Successful invoke of this method in a valid state transfers the object to the Started state. Calling this method in an invalid state transfers the object to the Error state. stop {Prepared, Started, Stopped, Paused, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method in a valid state transfers the object to the Stopped state. Calling this method in an invalid state transfers the object to the Error state. getTrackInfo {Prepared, Started, Stopped, Paused, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method does not change the state. addTimedTextSource {Prepared, Started, Stopped, Paused, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method does not change the state. selectTrack {Prepared, Started, Stopped, Paused, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method does not change the state. deselectTrack {Prepared, Started, Stopped, Paused, PlaybackCompleted} {Idle, Initialized, Error} Successful invoke of this method does not change the state. Permissions
One may need to declare a corresponding WAKE_LOCK permission
<uses-permission>
element.This class requires the
Manifest.permission.INTERNET
permission when used with network-based content.Callbacks
Applications may want to register for informational and error events in order to be informed of some internal state update and possible runtime errors during playback or streaming. Registration for these events is done by properly setting the appropriate listeners (via calls to
setOnPreparedListener
,setOnVideoSizeChangedListener
,setOnSeekCompleteListener
,setOnCompletionListener
,setOnBufferingUpdateListener
,setOnInfoListener
,setOnErrorListener
, etc). In order to receive the respective callback associated with these listeners, applications are required to create MediaPlayer objects on a thread with its own Looper running (main UI thread by default has a Looper running).Summary
Nested classes
class
MediaPlayer.DrmInfo
Encapsulates the DRM properties of the source.
class
MediaPlayer.MetricsConstants
class
MediaPlayer.NoDrmSchemeException
Thrown when a DRM method is called before preparing a DRM scheme through prepareDrm().
interface
MediaPlayer.OnBufferingUpdateListener
Interface definition of a callback to be invoked indicating buffering status of a media resource being streamed over the network.
interface
MediaPlayer.OnCompletionListener
Interface definition for a callback to be invoked when playback of a media source has completed.
interface
MediaPlayer.OnDrmConfigHelper
Interface definition of a callback to be invoked when the app can do DRM configuration (get/set properties) before the session is opened.
interface
MediaPlayer.OnDrmInfoListener
Interface definition of a callback to be invoked when the DRM info becomes available
interface
MediaPlayer.OnDrmPreparedListener
Interface definition of a callback to notify the app when the DRM is ready for key request/response
interface
MediaPlayer.OnErrorListener
Interface definition of a callback to be invoked when there has been an error during an asynchronous operation (other errors will throw exceptions at method call time).
interface
MediaPlayer.OnInfoListener
Interface definition of a callback to be invoked to communicate some info and/or warning about the media or its playback.
interface
MediaPlayer.OnMediaTimeDiscontinuityListener
Interface definition of a callback to be invoked when discontinuity in the normal progression of the media time is detected.
interface
MediaPlayer.OnPreparedListener
Interface definition for a callback to be invoked when the media source is ready for playback.
interface
MediaPlayer.OnSeekCompleteListener
Interface definition of a callback to be invoked indicating the completion of a seek operation.
interface
MediaPlayer.OnSubtitleDataListener
Interface definition of a callback to be invoked when a player subtitle track has new subtitle data available.
interface
MediaPlayer.OnTimedMetaDataAvailableListener
Interface definition of a callback to be invoked when a track has timed metadata available.
interface
MediaPlayer.OnTimedTextListener
Interface definition of a callback to be invoked when a timed text is available for display.
interface
MediaPlayer.OnVideoSizeChangedListener
Interface definition of a callback to be invoked when the video size is first known or updated
class
MediaPlayer.ProvisioningNetworkErrorException
Thrown when the device requires DRM provisioning but the provisioning attempt has failed due to a network error (Internet reachability, timeout, etc.).
class
MediaPlayer.ProvisioningServerErrorException
Thrown when the device requires DRM provisioning but the provisioning attempt has failed due to the provisioning server denying the request.
class
MediaPlayer.TrackInfo
Class for MediaPlayer to return each audio/video/subtitle track's metadata.
Constants
int
MEDIA_ERROR_IO
File or network related operation errors.
int
MEDIA_ERROR_MALFORMED
Bitstream is not conforming to the related coding standard or file spec.
int
MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK
The video is streamed and its container is not valid for progressive playback i.e the video's index (e.g moov atom) is not at the start of the file.
int
MEDIA_ERROR_SERVER_DIED
Media server died.
int
MEDIA_ERROR_TIMED_OUT
Some operation takes too long to complete, usually more than 3-5 seconds.
int
MEDIA_ERROR_UNKNOWN
Unspecified media player error.
int
MEDIA_ERROR_UNSUPPORTED
Bitstream is conforming to the related coding standard or file spec, but the media framework does not support the feature.
int
MEDIA_INFO_AUDIO_NOT_PLAYING
Informs that audio is not playing.
int
MEDIA_INFO_BAD_INTERLEAVING
Bad interleaving means that a media has been improperly interleaved or not interleaved at all, e.g has all the video samples first then all the audio ones.
int
MEDIA_INFO_BUFFERING_END
MediaPlayer is resuming playback after filling buffers.
int
MEDIA_INFO_BUFFERING_START
MediaPlayer is temporarily pausing playback internally in order to buffer more data.
int
MEDIA_INFO_METADATA_UPDATE
A new set of metadata is available.
int
MEDIA_INFO_NOT_SEEKABLE
The media cannot be seeked (e.g live stream)
int
MEDIA_INFO_STARTED_AS_NEXT
The player was started because it was used as the next player for another player, which just completed playback.
int
MEDIA_INFO_SUBTITLE_TIMED_OUT
Reading the subtitle track takes too long.
int
MEDIA_INFO_UNKNOWN
Unspecified media player info.
int
MEDIA_INFO_UNSUPPORTED_SUBTITLE
Subtitle track was not supported by the media framework.
int
MEDIA_INFO_VIDEO_NOT_PLAYING
Informs that video is not playing.
int
MEDIA_INFO_VIDEO_RENDERING_START
The player just pushed the very first video frame for rendering.
int
MEDIA_INFO_VIDEO_TRACK_LAGGING
The video is too complex for the decoder: it can't decode frames fast enough.
String
MEDIA_MIMETYPE_TEXT_SUBRIP
This constant was deprecated in API level 28. use
MediaFormat.MIMETYPE_TEXT_SUBRIP
int
PREPARE_DRM_STATUS_PREPARATION_ERROR
The DRM preparation has failed .
int
PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR
The device required DRM provisioning but couldn't reach the provisioning server.
int
PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR
The device required DRM provisioning but the provisioning server denied the request.
int
PREPARE_DRM_STATUS_SUCCESS
The status codes for
OnDrmPreparedListener.onDrmPrepared
listener.int
SEEK_CLOSEST
This mode is used with
seekTo(long, int)
to move media position to a frame (not necessarily a key frame) associated with a data source that is located closest to or at the given time.int
SEEK_CLOSEST_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located closest to (in time) or at the given time.int
SEEK_NEXT_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located right after or at the given time.int
SEEK_PREVIOUS_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located right before or at the given time.int
VIDEO_SCALING_MODE_SCALE_TO_FIT
Specifies a video scaling mode.
int
VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
Specifies a video scaling mode.
Public constructors
MediaPlayer()
Default constructor.
MediaPlayer(Context context)
Default constructor with context.
Public methods
void
addOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener, Handler handler)
Adds an
AudioRouting.OnRoutingChangedListener
to receive notifications of routing changes on this MediaPlayer.void
addTimedTextSource(FileDescriptor fd, String mimeType)
Adds an external timed text source file (FileDescriptor).
void
addTimedTextSource(String path, String mimeType)
Adds an external timed text source file.
void
addTimedTextSource(FileDescriptor fd, long offset, long length, String mime)
Adds an external timed text file (FileDescriptor).
void
addTimedTextSource(Context context, Uri uri, String mimeType)
Adds an external timed text source file (Uri).
void
attachAuxEffect(int effectId)
Attaches an auxiliary effect to the player.
void
clearOnMediaTimeDiscontinuityListener()
Clears the listener previously set with
setOnMediaTimeDiscontinuityListener(android.media.MediaPlayer.OnMediaTimeDiscontinuityListener)
orsetOnMediaTimeDiscontinuityListener(android.media.MediaPlayer.OnMediaTimeDiscontinuityListener, android.os.Handler)
void
clearOnSubtitleDataListener()
Clears the listener previously set with
setOnSubtitleDataListener(android.media.MediaPlayer.OnSubtitleDataListener)
orsetOnSubtitleDataListener(android.media.MediaPlayer.OnSubtitleDataListener, android.os.Handler)
.static MediaPlayer
create(Context context, Uri uri, SurfaceHolder holder, AudioAttributes audioAttributes, int audioSessionId)
Same factory method as
create(android.content.Context, android.net.Uri, android.view.SurfaceHolder)
but that lets you specify the audio attributes and session ID to be used by the new MediaPlayer instance.static MediaPlayer
create(Context context, int resid, AudioAttributes audioAttributes, int audioSessionId)
Same factory method as
create(android.content.Context, int)
but that lets you specify the audio attributes and session ID to be used by the new MediaPlayer instance.static MediaPlayer
create(Context context, Uri uri, SurfaceHolder holder)
Convenience method to create a MediaPlayer for a given Uri.
static MediaPlayer
create(Context context, int resid)
Convenience method to create a MediaPlayer for a given resource id.
static MediaPlayer
create(Context context, Uri uri)
Convenience method to create a MediaPlayer for a given Uri.
VolumeShaper
createVolumeShaper(VolumeShaper.Configuration configuration)
Returns a
VolumeShaper
object that can be used modify the volume envelope of the player or track.void
deselectTrack(int index)
Deselect a track.
int
getAudioSessionId()
Returns the audio session ID.
int
getCurrentPosition()
Gets the current playback position.
MediaPlayer.DrmInfo
getDrmInfo()
Retrieves the DRM Info associated with the current source
String
getDrmPropertyString(String propertyName)
Read a DRM engine plugin String property value, given the property name string.
int
getDuration()
Gets the duration of the file.
MediaDrm.KeyRequest
getKeyRequest(byte[] keySetId, byte[] initData, String mimeType, int keyType, Map<String, String> optionalParameters)
A key request/response exchange occurs between the app and a license server to obtain or release keys used to decrypt encrypted content.
PersistableBundle
getMetrics()
Return Metrics data about the current player.
PlaybackParams
getPlaybackParams()
Gets the playback params, containing the current playback rate.
AudioDeviceInfo
getPreferredDevice()
Returns the selected output specified by
setPreferredDevice(AudioDeviceInfo)
.AudioDeviceInfo
getRoutedDevice()
Returns an
AudioDeviceInfo
identifying the current routing of this MediaPlayer Note: The query is only valid if the MediaPlayer is currently playing.int
getSelectedTrack(int trackType)
Returns the index of the audio, video, or subtitle track currently selected for playback, The return value is an index into the array returned by
getTrackInfo()
, and can be used in calls toselectTrack(int)
ordeselectTrack(int)
.SyncParams
getSyncParams()
Gets the A/V sync mode.
MediaTimestamp
getTimestamp()
Get current playback position as a
MediaTimestamp
.TrackInfo[]
getTrackInfo()
Returns an array of track information.
int
getVideoHeight()
Returns the height of the video.
int
getVideoWidth()
Returns the width of the video.
boolean
isLooping()
Checks whether the MediaPlayer is looping or non-looping.
boolean
isPlaying()
Checks whether the MediaPlayer is playing.
void
pause()
Pauses playback.
void
prepare()
Prepares the player for playback, synchronously.
void
prepareAsync()
Prepares the player for playback, asynchronously.
void
prepareDrm(UUID uuid)
Prepares the DRM for the current source
If
OnDrmConfigHelper
is registered, it will be called during preparation to allow configuration of the DRM properties before opening the DRM session.byte[]
provideKeyResponse(byte[] keySetId, byte[] response)
A key response is received from the license server by the app, then it is provided to the DRM engine plugin using provideKeyResponse.
void
release()
Releases resources associated with this MediaPlayer object.
void
releaseDrm()
Releases the DRM session
The player has to have an active DRM session and be in stopped, or prepared state before this call is made.
void
removeOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener)
Removes an
AudioRouting.OnRoutingChangedListener
which has been previously added to receive rerouting notifications.void
reset()
Resets the MediaPlayer to its uninitialized state.
void
restoreKeys(byte[] keySetId)
Restore persisted offline keys into a new session.
void
seekTo(int msec)
Seeks to specified time position.
void
seekTo(long msec, int mode)
Moves the media to specified time position by considering the given mode.
void
selectTrack(int index)
Selects a track.
void
setAudioAttributes(AudioAttributes attributes)
Sets the audio attributes for this MediaPlayer.
void
setAudioSessionId(int sessionId)
Sets the audio session ID.
void
setAudioStreamType(int streamtype)
This method was deprecated in API level 26. use
setAudioAttributes(android.media.AudioAttributes)
void
setAuxEffectSendLevel(float level)
Sets the send level of the player to the attached auxiliary effect.
void
setDataSource(AssetFileDescriptor afd)
Sets the data source (AssetFileDescriptor) to use.
void
setDataSource(FileDescriptor fd)
Sets the data source (FileDescriptor) to use.
void
setDataSource(FileDescriptor fd, long offset, long length)
Sets the data source (FileDescriptor) to use.
void
setDataSource(String path)
Sets the data source (file-path or http/rtsp URL) to use.
void
setDataSource(MediaDataSource dataSource)
Sets the data source (MediaDataSource) to use.
void
setDataSource(Context context, Uri uri, Map<String, String> headers, List<HttpCookie> cookies)
Sets the data source as a content Uri.
void
setDataSource(Context context, Uri uri, Map<String, String> headers)
Sets the data source as a content Uri.
void
setDataSource(Context context, Uri uri)
Sets the data source as a content Uri.
void
setDisplay(SurfaceHolder sh)
Sets the
SurfaceHolder
to use for displaying the video portion of the media.void
setDrmPropertyString(String propertyName, String value)
Set a DRM engine plugin String property value.
void
setLooping(boolean looping)
Sets the player to be looping or non-looping.
void
setNextMediaPlayer(MediaPlayer next)
Set the MediaPlayer to start when this MediaPlayer finishes playback (i.e.
void
setOnBufferingUpdateListener(MediaPlayer.OnBufferingUpdateListener listener)
Register a callback to be invoked when the status of a network stream's buffer has changed.
void
setOnCompletionListener(MediaPlayer.OnCompletionListener listener)
Register a callback to be invoked when the end of a media source has been reached during playback.
void
setOnDrmConfigHelper(MediaPlayer.OnDrmConfigHelper listener)
Register a callback to be invoked for configuration of the DRM object before the session is created.
void
setOnDrmInfoListener(MediaPlayer.OnDrmInfoListener listener)
Register a callback to be invoked when the DRM info is known.
void
setOnDrmInfoListener(MediaPlayer.OnDrmInfoListener listener, Handler handler)
Register a callback to be invoked when the DRM info is known.
void
setOnDrmPreparedListener(MediaPlayer.OnDrmPreparedListener listener, Handler handler)
Register a callback to be invoked when the DRM object is prepared.
void
setOnDrmPreparedListener(MediaPlayer.OnDrmPreparedListener listener)
Register a callback to be invoked when the DRM object is prepared.
void
setOnErrorListener(MediaPlayer.OnErrorListener listener)
Register a callback to be invoked when an error has happened during an asynchronous operation.
void
setOnInfoListener(MediaPlayer.OnInfoListener listener)
Register a callback to be invoked when an info/warning is available.
void
setOnMediaTimeDiscontinuityListener(MediaPlayer.OnMediaTimeDiscontinuityListener listener, Handler handler)
Sets the listener to be invoked when a media time discontinuity is encountered.
void
setOnMediaTimeDiscontinuityListener(MediaPlayer.OnMediaTimeDiscontinuityListener listener)
Sets the listener to be invoked when a media time discontinuity is encountered.
void
setOnPreparedListener(MediaPlayer.OnPreparedListener listener)
Register a callback to be invoked when the media source is ready for playback.
void
setOnSeekCompleteListener(MediaPlayer.OnSeekCompleteListener listener)
Register a callback to be invoked when a seek operation has been completed.
void
setOnSubtitleDataListener(MediaPlayer.OnSubtitleDataListener listener)
Sets the listener to be invoked when a subtitle track has new data available.
void
setOnSubtitleDataListener(MediaPlayer.OnSubtitleDataListener listener, Handler handler)
Sets the listener to be invoked when a subtitle track has new data available.
void
setOnTimedMetaDataAvailableListener(MediaPlayer.OnTimedMetaDataAvailableListener listener)
Register a callback to be invoked when a selected track has timed metadata available.
void
setOnTimedTextListener(MediaPlayer.OnTimedTextListener listener)
Register a callback to be invoked when a timed text is available for display.
void
setOnVideoSizeChangedListener(MediaPlayer.OnVideoSizeChangedListener listener)
Register a callback to be invoked when the video size is known or updated.
void
setPlaybackParams(PlaybackParams params)
Sets playback rate using
PlaybackParams
.boolean
setPreferredDevice(AudioDeviceInfo deviceInfo)
Specifies an audio device (via an
AudioDeviceInfo
object) to route the output from this MediaPlayer.void
setScreenOnWhilePlaying(boolean screenOn)
Control whether we should use the attached SurfaceHolder to keep the screen on while video playback is occurring.
void
setSurface(Surface surface)
Sets the
Surface
to be used as the sink for the video portion of the media.void
setSyncParams(SyncParams params)
Sets A/V sync mode.
void
setVideoScalingMode(int mode)
Sets video scaling mode.
void
setVolume(float leftVolume, float rightVolume)
Sets the volume on this player.
void
setWakeMode(Context context, int mode)
Set the low-level power management behavior for this MediaPlayer.
void
start()
Starts or resumes playback.
void
stop()
Stops playback after playback has been started or paused.
Protected methods
void
finalize()
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
Inherited methods
Constants
MEDIA_ERROR_IO
Added in API level 17public static final int MEDIA_ERROR_IO
File or network related operation errors.
Constant Value: -1004 (0xfffffc14)
MEDIA_ERROR_MALFORMED
Added in API level 17public static final int MEDIA_ERROR_MALFORMED
Bitstream is not conforming to the related coding standard or file spec.
Constant Value: -1007 (0xfffffc11)
MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK
Added in API level 3public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK
The video is streamed and its container is not valid for progressive playback i.e the video's index (e.g moov atom) is not at the start of the file.
See also:
Constant Value: 200 (0x000000c8)
MEDIA_ERROR_SERVER_DIED
Added in API level 1public static final int MEDIA_ERROR_SERVER_DIED
Media server died. In this case, the application must release the MediaPlayer object and instantiate a new one.
See also:
Constant Value: 100 (0x00000064)
MEDIA_ERROR_TIMED_OUT
Added in API level 17public static final int MEDIA_ERROR_TIMED_OUT
Some operation takes too long to complete, usually more than 3-5 seconds.
Constant Value: -110 (0xffffff92)
MEDIA_ERROR_UNKNOWN
Added in API level 1public static final int MEDIA_ERROR_UNKNOWN
Unspecified media player error.
See also:
Constant Value: 1 (0x00000001)
MEDIA_ERROR_UNSUPPORTED
Added in API level 17public static final int MEDIA_ERROR_UNSUPPORTED
Bitstream is conforming to the related coding standard or file spec, but the media framework does not support the feature.
Constant Value: -1010 (0xfffffc0e)
MEDIA_INFO_AUDIO_NOT_PLAYING
Added in API level 26public static final int MEDIA_INFO_AUDIO_NOT_PLAYING
Informs that audio is not playing. Note that playback of the video is not interrupted.
See also:
Constant Value: 804 (0x00000324)
MEDIA_INFO_BAD_INTERLEAVING
Added in API level 3public static final int MEDIA_INFO_BAD_INTERLEAVING
Bad interleaving means that a media has been improperly interleaved or not interleaved at all, e.g has all the video samples first then all the audio ones. Video is playing but a lot of disk seeks may be happening.
See also:
Constant Value: 800 (0x00000320)
MEDIA_INFO_BUFFERING_END
Added in API level 9public static final int MEDIA_INFO_BUFFERING_END
MediaPlayer is resuming playback after filling buffers.
See also:
Constant Value: 702 (0x000002be)
MEDIA_INFO_BUFFERING_START
Added in API level 9public static final int MEDIA_INFO_BUFFERING_START
MediaPlayer is temporarily pausing playback internally in order to buffer more data.
See also:
Constant Value: 701 (0x000002bd)
MEDIA_INFO_METADATA_UPDATE
Added in API level 5public static final int MEDIA_INFO_METADATA_UPDATE
A new set of metadata is available.
See also:
Constant Value: 802 (0x00000322)
MEDIA_INFO_NOT_SEEKABLE
Added in API level 3public static final int MEDIA_INFO_NOT_SEEKABLE
The media cannot be seeked (e.g live stream)
See also:
Constant Value: 801 (0x00000321)
MEDIA_INFO_STARTED_AS_NEXT
Added in API level 28public static final int MEDIA_INFO_STARTED_AS_NEXT
The player was started because it was used as the next player for another player, which just completed playback.
Constant Value: 2 (0x00000002)
MEDIA_INFO_SUBTITLE_TIMED_OUT
Added in API level 19public static final int MEDIA_INFO_SUBTITLE_TIMED_OUT
Reading the subtitle track takes too long.
See also:
Constant Value: 902 (0x00000386)
MEDIA_INFO_UNKNOWN
Added in API level 3public static final int MEDIA_INFO_UNKNOWN
Unspecified media player info.
See also:
Constant Value: 1 (0x00000001)
MEDIA_INFO_UNSUPPORTED_SUBTITLE
Added in API level 19public static final int MEDIA_INFO_UNSUPPORTED_SUBTITLE
Subtitle track was not supported by the media framework.
See also:
Constant Value: 901 (0x00000385)
MEDIA_INFO_VIDEO_NOT_PLAYING
Added in API level 26public static final int MEDIA_INFO_VIDEO_NOT_PLAYING
Informs that video is not playing. Note that playback of the audio is not interrupted.
See also:
Constant Value: 805 (0x00000325)
MEDIA_INFO_VIDEO_RENDERING_START
Added in API level 17public static final int MEDIA_INFO_VIDEO_RENDERING_START
The player just pushed the very first video frame for rendering.
See also:
Constant Value: 3 (0x00000003)
MEDIA_INFO_VIDEO_TRACK_LAGGING
Added in API level 3public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING
The video is too complex for the decoder: it can't decode frames fast enough. Possibly only the audio plays fine at this stage.
See also:
Constant Value: 700 (0x000002bc)
MEDIA_MIMETYPE_TEXT_SUBRIP
public static final String MEDIA_MIMETYPE_TEXT_SUBRIP
This constant was deprecated in API level 28.
useMediaFormat.MIMETYPE_TEXT_SUBRIP
MIME type for SubRip (SRT) container. Used in addTimedTextSource APIs.
Constant Value: "application/x-subrip"
PREPARE_DRM_STATUS_PREPARATION_ERROR
Added in API level 26public static final int PREPARE_DRM_STATUS_PREPARATION_ERROR
The DRM preparation has failed .
Constant Value: 3 (0x00000003)
PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR
Added in API level 26public static final int PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR
The device required DRM provisioning but couldn't reach the provisioning server.
Constant Value: 1 (0x00000001)
PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR
Added in API level 26public static final int PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR
The device required DRM provisioning but the provisioning server denied the request.
Constant Value: 2 (0x00000002)
PREPARE_DRM_STATUS_SUCCESS
Added in API level 26public static final int PREPARE_DRM_STATUS_SUCCESS
The status codes for
OnDrmPreparedListener.onDrmPrepared
listener.DRM preparation has succeeded.
Constant Value: 0 (0x00000000)
SEEK_CLOSEST
Added in API level 26public static final int SEEK_CLOSEST
This mode is used with
seekTo(long, int)
to move media position to a frame (not necessarily a key frame) associated with a data source that is located closest to or at the given time.See also:
Constant Value: 3 (0x00000003)
SEEK_CLOSEST_SYNC
Added in API level 26public static final int SEEK_CLOSEST_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located closest to (in time) or at the given time.See also:
Constant Value: 2 (0x00000002)
SEEK_NEXT_SYNC
Added in API level 26public static final int SEEK_NEXT_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located right after or at the given time.See also:
Constant Value: 1 (0x00000001)
SEEK_PREVIOUS_SYNC
Added in API level 26public static final int SEEK_PREVIOUS_SYNC
This mode is used with
seekTo(long, int)
to move media position to a sync (or key) frame associated with a data source that is located right before or at the given time.See also:
Constant Value: 0 (0x00000000)
VIDEO_SCALING_MODE_SCALE_TO_FIT
Added in API level 16public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT
Specifies a video scaling mode. The content is stretched to the surface rendering area. When the surface has the same aspect ratio as the content, the aspect ratio of the content is maintained; otherwise, the aspect ratio of the content is not maintained when video is being rendered. Unlike
VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
, there is no content cropping with this video scaling mode.Constant Value: 1 (0x00000001)
VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
Added in API level 16public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
Specifies a video scaling mode. The content is scaled, maintaining its aspect ratio. The whole surface area is always used. When the aspect ratio of the content is the same as the surface, no content is cropped; otherwise, content is cropped to fit the surface.
Constant Value: 2 (0x00000002)
Public constructors
MediaPlayer
Added in API level 1public MediaPlayer ()
Default constructor.
Consider using one of the create() methods for synchronously instantiating a MediaPlayer from a Uri or resource.
You must call
release()
when you are finished using the instantiated instance. Doing so frees any resources you have previously acquired.MediaPlayer
Added in API level 34public MediaPlayer (Context context)
Default constructor with context.
Consider using one of the create() methods for synchronously instantiating a MediaPlayer from a Uri or resource.
Parameters context
Context
: non-null context. This context will be used to pull information, such asAttributionSource
and device specific session ids, which will be associated with theMediaPlayer
. However, the context itself will not be retained by the MediaPlayer.Public methods
addOnRoutingChangedListener
Added in API level 28public void addOnRoutingChangedListener (AudioRouting.OnRoutingChangedListener listener, Handler handler)
Adds an
AudioRouting.OnRoutingChangedListener
to receive notifications of routing changes on this MediaPlayer.Parameters listener
AudioRouting.OnRoutingChangedListener
: TheAudioRouting.OnRoutingChangedListener
interface to receive notifications of rerouting events.handler
Handler
: Specifies theHandler
object for the thread on which to execute the callback. Ifnull
, the handler on the main looper will be used.addTimedTextSource
Added in API level 16public void addTimedTextSource (FileDescriptor fd, String mimeType)
Adds an external timed text source file (FileDescriptor). It is the caller's responsibility to close the file descriptor. It is safe to do so as soon as this call returns. Currently supported format is SubRip. Note that a single external timed text source may contain multiple tracks in it. One can find the total number of available tracks using
getTrackInfo()
to see what additional tracks become available after this method call.Parameters fd
FileDescriptor
: the FileDescriptor for the file you want to playmimeType
String
: The mime type of the file. Must be one of the mime types listed above.Throws IllegalArgumentException
if the mimeType is not supported. IllegalStateException
if called in an invalid state. addTimedTextSource
Added in API level 16public void addTimedTextSource (String path, String mimeType)
Adds an external timed text source file. Currently supported format is SubRip with the file extension .srt, case insensitive. Note that a single external timed text source may contain multiple tracks in it. One can find the total number of available tracks using
getTrackInfo()
to see what additional tracks become available after this method call.Parameters path
String
: The file path of external timed text source file.mimeType
String
: The mime type of the file. Must be one of the mime types listed above.Throws IOException
if the file cannot be accessed or is corrupted. IllegalArgumentException
if the mimeType is not supported. IllegalStateException
if called in an invalid state. addTimedTextSource
Added in API level 16public void addTimedTextSource (FileDescriptor fd, long offset, long length, String mime)
Adds an external timed text file (FileDescriptor). It is the caller's responsibility to close the file descriptor. It is safe to do so as soon as this call returns. Currently supported format is SubRip. Note that a single external timed text source may contain multiple tracks in it. One can find the total number of available tracks using
getTrackInfo()
to see what additional tracks become available after this method call.Parameters fd
FileDescriptor
: the FileDescriptor for the file you want to playoffset
long
: the offset into the file where the data to be played starts, in byteslength
long
: the length in bytes of the data to be playedmime
String
: The mime type of the file. Must be one of the mime types listed above.Throws IllegalArgumentException
if the mimeType is not supported. IllegalStateException
if called in an invalid state. addTimedTextSource
Added in API level 16public void addTimedTextSource (Context context, Uri uri, String mimeType)
Adds an external timed text source file (Uri). Currently supported format is SubRip with the file extension .srt, case insensitive. Note that a single external timed text source may contain multiple tracks in it. One can find the total number of available tracks using
getTrackInfo()
to see what additional tracks become available after this method call.Parameters context
Context
: the Context to use when resolving the Uriuri
Uri
: the Content URI of the data you want to playmimeType
String
: The mime type of the file. Must be one of the mime types listed above.Throws IOException
if the file cannot be accessed or is corrupted. IllegalArgumentException
if the mimeType is not supported. IllegalStateException
if called in an invalid state. attachAuxEffect
Added in API level 9public void attachAuxEffect (int effectId)
Attaches an auxiliary effect to the player. A typical auxiliary effect is a reverberation effect which can be applied on any sound source that directs a certain amount of its energy to this effect. This amount is defined by setAuxEffectSendLevel(). See
setAuxEffectSendLevel(float)
.After creating an auxiliary effect (e.g.
EnvironmentalReverb
), retrieve its ID withAudioEffect.getId()
and use it when calling this method to attach the player to the effect.To detach the effect from the player, call this method with a null effect id.
This method must be called after one of the overloaded
setDataSource
methods.Parameters effectId
int
: system wide unique id of the effect to attachclearOnMediaTimeDiscontinuityListener
Added in API level 28public void clearOnMediaTimeDiscontinuityListener ()
Clears the listener previously set with
setOnMediaTimeDiscontinuityListener(android.media.MediaPlayer.OnMediaTimeDiscontinuityListener)
orsetOnMediaTimeDiscontinuityListener(android.media.MediaPlayer.OnMediaTimeDiscontinuityListener, android.os.Handler)
clearOnSubtitleDataListener
Added in API level 28public void clearOnSubtitleDataListener ()
Clears the listener previously set with
setOnSubtitleDataListener(android.media.MediaPlayer.OnSubtitleDataListener)
orsetOnSubtitleDataListener(android.media.MediaPlayer.OnSubtitleDataListener, android.os.Handler)
.create
Added in API level 21public static MediaPlayer create (Context context, Uri uri, SurfaceHolder holder, AudioAttributes audioAttributes, int audioSessionId)
Same factory method as
create(android.content.Context, android.net.Uri, android.view.SurfaceHolder)
but that lets you specify the audio attributes and session ID to be used by the new MediaPlayer instance.Parameters context
Context
: the Context to useuri
Uri
: the Uri from which to get the datasourceholder
SurfaceHolder
: the SurfaceHolder to use for displaying the video, may be null.audioAttributes
AudioAttributes
: theAudioAttributes
to be used by the media player.audioSessionId
int
: the audio session ID to be used by the media player, seeAudioManager.generateAudioSessionId()
to obtain a new session.Returns MediaPlayer
a MediaPlayer object, or null if creation failed create
Added in API level 21public static MediaPlayer create (Context context, int resid, AudioAttributes audioAttributes, int audioSessionId)
Same factory method as
create(android.content.Context, int)
but that lets you specify the audio attributes and session ID to be used by the new MediaPlayer instance.Parameters context
Context
: the Context to useresid
int
: the raw resource id (R.raw.<something>) for the resource to use as the datasourceaudioAttributes
AudioAttributes
: theAudioAttributes
to be used by the media player.audioSessionId
int
: the audio session ID to be used by the media player, seeAudioManager.generateAudioSessionId()
to obtain a new session.Returns MediaPlayer
a MediaPlayer object, or null if creation failed create
Added in API level 1public static MediaPlayer create (Context context, Uri uri, SurfaceHolder holder)
Convenience method to create a MediaPlayer for a given Uri. On success,
prepare()
will already have been called and must not be called again.You must call
release()
when you are finished using the created instance. Doing so frees any resources you have previously acquired.Note that since
prepare()
is called automatically in this method, you cannot change the audio session ID (seesetAudioSessionId(int)
) or audio attributes (seesetAudioAttributes(android.media.AudioAttributes)
of the new MediaPlayer.Parameters context
Context
: the Context to useuri
Uri
: the Uri from which to get the datasourceholder
SurfaceHolder
: the SurfaceHolder to use for displaying the videoReturns MediaPlayer
a MediaPlayer object, or null if creation failed create
Added in API level 1public static MediaPlayer create (Context context, int resid)
Convenience method to create a MediaPlayer for a given resource id. On success,
prepare()
will already have been called and must not be called again.You must call
release()
when you are finished using the created instance. Doing so frees any resources you have previously acquired.Note that since
prepare()
is called automatically in this method, you cannot change the audio session ID (seesetAudioSessionId(int)
) or audio attributes (seesetAudioAttributes(android.media.AudioAttributes)
of the new MediaPlayer.Parameters context
Context
: the Context to useresid
int
: the raw resource id (R.raw.<something>) for the resource to use as the datasourceReturns MediaPlayer
a MediaPlayer object, or null if creation failed create
Added in API level 1public static MediaPlayer create (Context context, Uri uri)
Convenience method to create a MediaPlayer for a given Uri. On success,
prepare()
will already have been called and must not be called again.You must call
release()
when you are finished using the created instance. Doing so frees any resources you have previously acquired.Note that since
prepare()
is called automatically in this method, you cannot change the audio session ID (seesetAudioSessionId(int)
) or audio attributes (seesetAudioAttributes(android.media.AudioAttributes)
of the new MediaPlayer.Parameters context
Context
: the Context to useuri
Uri
: the Uri from which to get the datasourceReturns MediaPlayer
a MediaPlayer object, or null if creation failed createVolumeShaper
Added in API level 26public VolumeShaper createVolumeShaper (VolumeShaper.Configuration configuration)
Returns a
VolumeShaper
object that can be used modify the volume envelope of the player or track.Parameters configuration
VolumeShaper.Configuration
: This value cannot benull
.Returns VolumeShaper
This value cannot be null
.deselectTrack
Added in API level 16public void deselectTrack (int index)
Deselect a track.
Currently, the track must be a timed text track and no audio or video tracks can be deselected. If the timed text track identified by index has not been selected before, it throws an exception.
Parameters index
int
: the index of the track to be deselected. The valid range of the index is 0..total number of tracks - 1. The total number of tracks as well as the type of each individual track can be found by callinggetTrackInfo()
method.Throws IllegalStateException
if called in an invalid state. See also:
getAudioSessionId
Added in API level 9public int getAudioSessionId ()
Returns the audio session ID.
Returns int
the audio session ID. Note that the audio session ID is 0 only if a problem occured when the MediaPlayer was contructed. getCurrentPosition
Added in API level 1public int getCurrentPosition ()
Gets the current playback position.
Returns int
the current position in milliseconds getDrmInfo
Added in API level 26public MediaPlayer.DrmInfo getDrmInfo ()
Retrieves the DRM Info associated with the current source
Returns MediaPlayer.DrmInfo
Throws IllegalStateException
if called before prepare() getDrmPropertyString
Added in API level 26public String getDrmPropertyString (String propertyName)
Read a DRM engine plugin String property value, given the property name string.
Parameters propertyName
String
: the property name Standard fields names are:MediaDrm.PROPERTY_VENDOR
,MediaDrm.PROPERTY_VERSION
,MediaDrm.PROPERTY_DESCRIPTION
,MediaDrm.PROPERTY_ALGORITHMS
This value cannot benull
. Value isMediaDrm.PROPERTY_VENDOR
,MediaDrm.PROPERTY_VERSION
,MediaDrm.PROPERTY_DESCRIPTION
, orMediaDrm.PROPERTY_ALGORITHMS
Returns String
This value cannot be null
.Throws MediaPlayer.NoDrmSchemeException
getDuration
Added in API level 1public int getDuration ()
Gets the duration of the file.
Returns int
the duration in milliseconds, if no duration is available (for example, if streaming live content), -1 is returned. getKeyRequest
Added in API level 26public MediaDrm.KeyRequest getKeyRequest (byte[] keySetId, byte[] initData, String mimeType, int keyType, Map<String, String> optionalParameters)
A key request/response exchange occurs between the app and a license server to obtain or release keys used to decrypt encrypted content.
getKeyRequest() is used to obtain an opaque key request byte array that is delivered to the license server. The opaque key request byte array is returned in KeyRequest.data. The recommended URL to deliver the key request to is returned in KeyRequest.defaultUrl.
After the app has received the key request response from the server, it should deliver to the response to the DRM engine plugin using the method
provideKeyResponse(byte, byte)
.Parameters keySetId
byte
: is the key-set identifier of the offline keys being released when keyType isMediaDrm.KEY_TYPE_RELEASE
. It should be set to null for other key requests, when keyType isMediaDrm.KEY_TYPE_STREAMING
orMediaDrm.KEY_TYPE_OFFLINE
.initData
byte
: is the container-specific initialization data when the keyType isMediaDrm.KEY_TYPE_STREAMING
orMediaDrm.KEY_TYPE_OFFLINE
. Its meaning is interpreted based on the mime type provided in the mimeType parameter. It could contain, for example, the content ID, key ID or other data obtained from the content metadata that is required in generating the key request. When the keyType isMediaDrm.KEY_TYPE_RELEASE
, it should be set to null.mimeType
String
: identifies the mime type of the content This value may benull
.keyType
int
: specifies the type of the request. The request may be to acquire keys for streaming,MediaDrm.KEY_TYPE_STREAMING
, or for offline contentMediaDrm.KEY_TYPE_OFFLINE
, or to release previously acquired keys (MediaDrm.KEY_TYPE_RELEASE
), which are identified by a keySetId. Value isMediaDrm.KEY_TYPE_STREAMING
,MediaDrm.KEY_TYPE_OFFLINE
, orMediaDrm.KEY_TYPE_RELEASE
optionalParameters
Map
: are included in the key request message to allow a client application to provide additional message parameters to the server. This may benull
if no additional parameters are to be sent.Returns MediaDrm.KeyRequest
This value cannot be null
.Throws MediaPlayer.NoDrmSchemeException
if there is no active DRM session getMetrics
Added in API level 26public PersistableBundle getMetrics ()
Return Metrics data about the current player.
Returns PersistableBundle
a PersistableBundle
containing the set of attributes and values available for the media being handled by this instance of MediaPlayer The attributes are descibed inMetricsConstants
. Additional vendor-specific fields may also be present in the return value.getPlaybackParams
Added in API level 23public PlaybackParams getPlaybackParams ()
Gets the playback params, containing the current playback rate.
Returns PlaybackParams
the playback params. This value cannot be null
.Throws IllegalStateException
if the internal player engine has not been initialized. getPreferredDevice
Added in API level 28public AudioDeviceInfo getPreferredDevice ()
Returns the selected output specified by
setPreferredDevice(AudioDeviceInfo)
. Note that this is not guaranteed to correspond to the actual device being used for playback.Returns AudioDeviceInfo
getRoutedDevice
Added in API level 28public AudioDeviceInfo getRoutedDevice ()
Returns an
AudioDeviceInfo
identifying the current routing of this MediaPlayer Note: The query is only valid if the MediaPlayer is currently playing. If the player is not playing, the returned device can be null or correspond to previously selected device when the player was last active. Audio may play on multiple devices simultaneously (e.g. an alarm playing on headphones and speaker on a phone), so prefer usingERROR(/#getRoutedDevices)
.Returns AudioDeviceInfo
getSelectedTrack
Added in API level 21public int getSelectedTrack (int trackType)
Returns the index of the audio, video, or subtitle track currently selected for playback, The return value is an index into the array returned by
getTrackInfo()
, and can be used in calls toselectTrack(int)
ordeselectTrack(int)
.Parameters trackType
int
: should be one ofTrackInfo.MEDIA_TRACK_TYPE_VIDEO
,TrackInfo.MEDIA_TRACK_TYPE_AUDIO
, orTrackInfo.MEDIA_TRACK_TYPE_SUBTITLE
Returns int
index of the audio, video, or subtitle track currently selected for playback; a negative integer is returned when there is no selected track for trackType
or whentrackType
is not one of audio, video, or subtitle.Throws IllegalStateException
if called after release()
getSyncParams
Added in API level 23public SyncParams getSyncParams ()
Gets the A/V sync mode.
Returns SyncParams
the A/V sync params This value cannot be null
.Throws IllegalStateException
if the internal player engine has not been initialized. getTimestamp
Added in API level 23public MediaTimestamp getTimestamp ()
Get current playback position as a
MediaTimestamp
.The MediaTimestamp represents how the media time correlates to the system time in a linear fashion using an anchor and a clock rate. During regular playback, the media time moves fairly constantly (though the anchor frame may be rebased to a current system time, the linear correlation stays steady). Therefore, this method does not need to be called often.
To help users get current playback position, this method always anchors the timestamp to the current
system time
, soMediaTimestamp.getAnchorMediaTimeUs
can be used as current playback position.Returns MediaTimestamp
a MediaTimestamp object if a timestamp is available, or null
if no timestamp is available, e.g. because the media player has not been initialized.See also:
getTrackInfo
Added in API level 16public TrackInfo[] getTrackInfo ()
Returns an array of track information.
Returns TrackInfo[]
Array of track info. The total number of tracks is the array length. Must be called again if an external timed text source has been added after any of the addTimedTextSource methods are called. Throws IllegalStateException
if it is called in an invalid state. getVideoHeight
Added in API level 1public int getVideoHeight ()
Returns the height of the video.
Returns int
the height of the video, or 0 if there is no video, no display surface was set, or the height has not been determined yet. The OnVideoSizeChangedListener can be registered via setOnVideoSizeChangedListener(android.media.MediaPlayer.OnVideoSizeChangedListener)
to provide a notification when the height is available.getVideoWidth
Added in API level 1public int getVideoWidth ()
Returns the width of the video.
Returns int
the width of the video, or 0 if there is no video, no display surface was set, or the width has not been determined yet. The OnVideoSizeChangedListener can be registered via setOnVideoSizeChangedListener(android.media.MediaPlayer.OnVideoSizeChangedListener)
to provide a notification when the width is available.isLooping
Added in API level 3public boolean isLooping ()
Checks whether the MediaPlayer is looping or non-looping.
Returns boolean
true if the MediaPlayer is currently looping, false otherwise isPlaying
Added in API level 1public boolean isPlaying ()
Checks whether the MediaPlayer is playing.
Returns boolean
true if currently playing, false otherwise Throws IllegalStateException
if the internal player engine has not been initialized or has been released. pause
Added in API level 1public void pause ()
Pauses playback. Call start() to resume.
Throws IllegalStateException
if the internal player engine has not been initialized. prepare
Added in API level 1public void prepare ()
Prepares the player for playback, synchronously. After setting the datasource and the display surface, you need to either call prepare() or prepareAsync(). For files, it is OK to call prepare(), which blocks until MediaPlayer is ready for playback.
Throws IllegalStateException
if it is called in an invalid state IOException
prepareAsync
Added in API level 1public void prepareAsync ()
Prepares the player for playback, asynchronously. After setting the datasource and the display surface, you need to either call prepare() or prepareAsync(). For streams, you should call prepareAsync(), which returns immediately, rather than blocking until enough data has been buffered.
Throws IllegalStateException
if it is called in an invalid state prepareDrm
Added in API level 26public void prepareDrm (UUID uuid)
Prepares the DRM for the current source
If
OnDrmConfigHelper
is registered, it will be called during preparation to allow configuration of the DRM properties before opening the DRM session. Note that the callback is called synchronously in the thread that calledprepareDrm
. It should be used only for a series ofgetDrmPropertyString
andsetDrmPropertyString
calls and refrain from any lengthy operation.If the device has not been provisioned before, this call also provisions the device which involves accessing the provisioning server and can take a variable time to complete depending on the network connectivity. If
OnDrmPreparedListener
is registered, prepareDrm() runs in non-blocking mode by launching the provisioning in the background and returning. The listener will be called when provisioning and preparation has finished. If aOnDrmPreparedListener
is not registered, prepareDrm() waits till provisioning and preparation has finished, i.e., runs in blocking mode.If
OnDrmPreparedListener
is registered, it is called to indicate the DRM session being ready. The application should not make any assumption about its call sequence (e.g., before or after prepareDrm returns), or the thread context that will execute the listener (unless the listener is registered with a handler thread).Parameters uuid
UUID
: The UUID of the crypto scheme. If not known beforehand, it can be retrieved from the source throughgetDrmInfo
or registering aonDrmInfoListener
. This value cannot benull
.Throws IllegalStateException
if called before prepare(), or the DRM was prepared already UnsupportedSchemeException
if the crypto scheme is not supported ResourceBusyException
if required DRM resources are in use MediaPlayer.ProvisioningNetworkErrorException
if provisioning is required but failed due to a network error MediaPlayer.ProvisioningServerErrorException
if provisioning is required but failed due to the request denied by the provisioning server provideKeyResponse
Added in API level 26public byte[] provideKeyResponse (byte[] keySetId, byte[] response)
A key response is received from the license server by the app, then it is provided to the DRM engine plugin using provideKeyResponse. When the response is for an offline key request, a key-set identifier is returned that can be used to later restore the keys to a new session with the method {@ link # restoreKeys}. When the response is for a streaming or release request, null is returned.
Parameters keySetId
byte
: When the response is for a release request, keySetId identifies the saved key associated with the release request (i.e., the same keySetId passed to the earlier {@ link # getKeyRequest} call. It MUST be null when the response is for either streaming or offline key requests.response
byte
: the byte array response from the serverReturns byte[]
Throws MediaPlayer.NoDrmSchemeException
if there is no active DRM session DeniedByServerException
if the response indicates that the server rejected the request release
Added in API level 1public void release ()
Releases resources associated with this MediaPlayer object.
You must call this method once the instance is no longer required.
releaseDrm
Added in API level 26public void releaseDrm ()
Releases the DRM session
The player has to have an active DRM session and be in stopped, or prepared state before this call is made. A
reset()
call will release the DRM session implicitly.Throws MediaPlayer.NoDrmSchemeException
if there is no active DRM session to release removeOnRoutingChangedListener
Added in API level 28public void removeOnRoutingChangedListener (AudioRouting.OnRoutingChangedListener listener)
Removes an
AudioRouting.OnRoutingChangedListener
which has been previously added to receive rerouting notifications.Parameters listener
AudioRouting.OnRoutingChangedListener
: The previously addedAudioRouting.OnRoutingChangedListener
interface to remove.reset
Added in API level 1public void reset ()
Resets the MediaPlayer to its uninitialized state. After calling this method, you will have to initialize it again by setting the data source and calling prepare().
restoreKeys
Added in API level 26public void restoreKeys (byte[] keySetId)
Restore persisted offline keys into a new session. keySetId identifies the keys to load, obtained from a prior call to
provideKeyResponse(byte, byte)
.Parameters keySetId
byte
: identifies the saved key set to restore This value cannot benull
.Throws MediaPlayer.NoDrmSchemeException
seekTo
Added in API level 1public void seekTo (int msec)
Seeks to specified time position. Same as
seekTo(long, int)
withmode = SEEK_PREVIOUS_SYNC
.Parameters msec
int
: the offset in milliseconds from the start to seek toThrows IllegalStateException
if the internal player engine has not been initialized seekTo
Added in API level 26public void seekTo (long msec, int mode)
Moves the media to specified time position by considering the given mode.
When seekTo is finished, the user will be notified via OnSeekComplete supplied by the user. There is at most one active seekTo processed at any time. If there is a to-be-completed seekTo, new seekTo requests will be queued in such a way that only the last request is kept. When current seekTo is completed, the queued request will be processed if that request is different from just-finished seekTo operation, i.e., the requested position or mode is different.
Parameters msec
long
: the offset in milliseconds from the start to seek to. When seeking to the given time position, there is no guarantee that the data source has a frame located at the position. When this happens, a frame nearby will be rendered. If msec is negative, time position zero will be used. If msec is larger than duration, duration will be used.mode
int
: the mode indicating where exactly to seek to. UseSEEK_PREVIOUS_SYNC
if one wants to seek to a sync frame that has a timestamp earlier than or the same as msec. UseSEEK_NEXT_SYNC
if one wants to seek to a sync frame that has a timestamp later than or the same as msec. UseSEEK_CLOSEST_SYNC
if one wants to seek to a sync frame that has a timestamp closest to or the same as msec. UseSEEK_CLOSEST
if one wants to seek to a frame that may or may not be a sync frame but is closest to or the same as msec.SEEK_CLOSEST
often has larger performance overhead compared to the other options if there is no sync frame located at msec. Value isSEEK_PREVIOUS_SYNC
,SEEK_NEXT_SYNC
,SEEK_CLOSEST_SYNC
, orSEEK_CLOSEST
Throws IllegalStateException
if the internal player engine has not been initialized IllegalArgumentException
if the mode is invalid. selectTrack
Added in API level 16public void selectTrack (int index)
Selects a track.
If a MediaPlayer is in invalid state, it throws an IllegalStateException exception. If a MediaPlayer is in Started state, the selected track is presented immediately. If a MediaPlayer is not in Started state, it just marks the track to be played.
In any valid state, if it is called multiple times on the same type of track (ie. Video, Audio, Timed Text), the most recent one will be chosen.
The first audio and video tracks are selected by default if available, even though this method is not called. However, no timed text track will be selected until this function is called.
Currently, only timed text, subtitle or audio tracks can be selected via this method. In addition, the support for selecting an audio track at runtime is pretty limited in that an audio track can only be selected in the Prepared state.
Parameters index
int
: the index of the track to be selected. The valid range of the index is 0..total number of track - 1. The total number of tracks as well as the type of each individual track can be found by callinggetTrackInfo()
method.Throws IllegalStateException
if called in an invalid state. See also:
setAudioAttributes
Added in API level 21public void setAudioAttributes (AudioAttributes attributes)
Sets the audio attributes for this MediaPlayer. See
AudioAttributes
for how to build and configure an instance of this class. You must call this method beforeprepare()
orprepareAsync()
in order for the audio attributes to become effective thereafter.Parameters attributes
AudioAttributes
: a non-null set of audio attributesThrows IllegalArgumentException
setAudioSessionId
Added in API level 9public void setAudioSessionId (int sessionId)
Sets the audio session ID.
Parameters sessionId
int
: the audio session ID. The audio session ID is a system wide unique identifier for the audio stream played by this MediaPlayer instance. The primary use of the audio session ID is to associate audio effects to a particular instance of MediaPlayer: if an audio session ID is provided when creating an audio effect, this effect will be applied only to the audio content of media players within the same audio session and not to the output mix. When created, a MediaPlayer instance automatically generates its own audio session ID. However, it is possible to force this player to be part of an already existing audio session by calling this method. This method must be called before one of the overloadedsetDataSource
methods. Note that session id set using this method will override device-specific audio session id, if theMediaPlayer
was instantiated using device-specificContext
- seeMediaPlayer.MediaPlayer(Context)
.Throws IllegalStateException
if it is called in an invalid state IllegalArgumentException
setAudioStreamType
public void setAudioStreamType (int streamtype)
This method was deprecated in API level 26.
usesetAudioAttributes(android.media.AudioAttributes)
Sets the audio stream type for this MediaPlayer. See
AudioManager
for a list of stream types. Must call this method before prepare() or prepareAsync() in order for the target stream type to become effective thereafter.Parameters streamtype
int
: the audio stream typeSee also:
setAuxEffectSendLevel
Added in API level 9public void setAuxEffectSendLevel (float level)
Sets the send level of the player to the attached auxiliary effect. See
attachAuxEffect(int)
. The level value range is 0 to 1.0.By default the send level is 0, so even if an effect is attached to the player this method must be called for the effect to be applied.
Note that the passed level value is a raw scalar. UI controls should be scaled logarithmically: the gain applied by audio framework ranges from -72dB to 0dB, so an appropriate conversion from linear UI input x to level is: x == 0 -> level = 0 0 < x <= R -> level = 10^(72*(x-R)/20/R)
Parameters level
float
: send level scalarsetDataSource
Added in API level 24public void setDataSource (AssetFileDescriptor afd)
Sets the data source (AssetFileDescriptor) to use. It is the caller's responsibility to close the file descriptor. It is safe to do so as soon as this call returns.
Parameters afd
AssetFileDescriptor
: the AssetFileDescriptor for the file you want to play This value cannot benull
.Throws IllegalStateException
if it is called in an invalid state IllegalArgumentException
if afd is not a valid AssetFileDescriptor IOException
if afd can not be read setDataSource
Added in API level 1public void setDataSource (FileDescriptor fd)
Sets the data source (FileDescriptor) to use. It is the caller's responsibility to close the file descriptor. It is safe to do so as soon as this call returns.
Parameters fd
FileDescriptor
: the FileDescriptor for the file you want to playThrows IllegalStateException
if it is called in an invalid state IllegalArgumentException
if fd is not a valid FileDescriptor IOException
if fd can not be read setDataSource
Added in API level 1public void setDataSource (FileDescriptor fd, long offset, long length)
Sets the data source (FileDescriptor) to use. The FileDescriptor must be seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility to close the file descriptor. It is safe to do so as soon as this call returns.
Parameters fd
FileDescriptor
: the FileDescriptor for the file you want to playoffset
long
: the offset into the file where the data to be played starts, in byteslength
long
: the length in bytes of the data to be playedThrows IllegalStateException
if it is called in an invalid state IllegalArgumentException
if fd is not a valid FileDescriptor IOException
if fd can not be read setDataSource
Added in API level 1public void setDataSource (String path)
Sets the data source (file-path or http/rtsp URL) to use.
When
path
refers to a local file, the file may actually be opened by a process other than the calling application. This implies that the pathname should be an absolute path (as any other process runs with unspecified current working directory), and that the pathname should reference a world-readable file. As an alternative, the application could first open the file for reading, and then use the file descriptor formsetDataSource(java.io.FileDescriptor)
.Parameters path
String
: the path of the file, or the http/rtsp URL of the stream you want to playThrows IllegalStateException
if it is called in an invalid state IOException
IllegalArgumentException
SecurityException
setDataSource
Added in API level 23public void setDataSource (MediaDataSource dataSource)
Sets the data source (MediaDataSource) to use.
Parameters dataSource
MediaDataSource
: the MediaDataSource for the media you want to playThrows IllegalStateException
if it is called in an invalid state IllegalArgumentException
if dataSource is not a valid MediaDataSource setDataSource
Added in API level 26public void setDataSource (Context context, Uri uri, Map<String, String> headers, List<HttpCookie> cookies)
Sets the data source as a content Uri. To provide cookies for the subsequent HTTP requests, you can install your own default cookie handler and use other variants of setDataSource APIs instead. Alternatively, you can use this API to pass the cookies as a list of HttpCookie. If the app has not installed a CookieHandler already, this API creates a CookieManager and populates its CookieStore with the provided cookies. If the app has installed its own handler already, this API requires the handler to be of CookieManager type such that the API can update the manager's CookieStore.
Note that the cross domain redirection is allowed by default, but that can be changed with key/value pairs through the headers parameter with "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value to disallow or allow cross domain redirection.
Parameters context
Context
: the Context to use when resolving the Uri This value cannot benull
.uri
Uri
: the Content URI of the data you want to play This value cannot benull
.headers
Map
: the headers to be sent together with the request for the data The headers must not include cookies. Instead, use the cookies param. This value may benull
.cookies
List
: the cookies to be sent together with the request This value may benull
.Throws IllegalArgumentException
if cookies are provided and the installed handler is not a CookieManager IllegalStateException
if it is called in an invalid state NullPointerException
if context or uri is null IOException
if uri has a file scheme and an I/O error occurs setDataSource
Added in API level 14public void setDataSource (Context context, Uri uri, Map<String, String> headers)
Sets the data source as a content Uri.
Note that the cross domain redirection is allowed by default, but that can be changed with key/value pairs through the headers parameter with "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value to disallow or allow cross domain redirection.
Parameters context
Context
: the Context to use when resolving the Uri This value cannot benull
.uri
Uri
: the Content URI of the data you want to play This value cannot benull
.headers
Map
: the headers to be sent together with the request for the data This value may benull
.Throws IllegalStateException
if it is called in an invalid state IOException
IllegalArgumentException
SecurityException
setDataSource
Added in API level 1public void setDataSource (Context context, Uri uri)
Sets the data source as a content Uri.
Parameters context
Context
: the Context to use when resolving the Uri This value cannot benull
.uri
Uri
: the Content URI of the data you want to play This value cannot benull
.Throws IllegalStateException
if it is called in an invalid state IOException
IllegalArgumentException
SecurityException
setDisplay
Added in API level 1public void setDisplay (SurfaceHolder sh)
Sets the
SurfaceHolder
to use for displaying the video portion of the media. Either a surface holder or surface must be set if a display or video sink is needed. Not calling this method orsetSurface(android.view.Surface)
when playing back a video will result in only the audio track being played. A null surface holder or surface will result in only the audio track being played.Parameters sh
SurfaceHolder
: the SurfaceHolder to use for video displayThrows IllegalStateException
if the internal player engine has not been initialized or has been released. setDrmPropertyString
Added in API level 26public void setDrmPropertyString (String propertyName, String value)
Set a DRM engine plugin String property value.
Parameters propertyName
String
: the property name This value cannot benull
. Value isMediaDrm.PROPERTY_VENDOR
,MediaDrm.PROPERTY_VERSION
,MediaDrm.PROPERTY_DESCRIPTION
, orMediaDrm.PROPERTY_ALGORITHMS
value
String
: the property value Standard fields names are:MediaDrm.PROPERTY_VENDOR
,MediaDrm.PROPERTY_VERSION
,MediaDrm.PROPERTY_DESCRIPTION
,MediaDrm.PROPERTY_ALGORITHMS
This value cannot benull
.Throws MediaPlayer.NoDrmSchemeException
setLooping
Added in API level 1public void setLooping (boolean looping)
Sets the player to be looping or non-looping.
Parameters looping
boolean
: whether to loop or notsetNextMediaPlayer
Added in API level 16public void setNextMediaPlayer (MediaPlayer next)
Set the MediaPlayer to start when this MediaPlayer finishes playback (i.e. reaches the end of the stream). The media framework will attempt to transition from this player to the next as seamlessly as possible. The next player can be set at any time before completion, but shall be after setDataSource has been called successfully. The next player must be prepared by the app, and the application should not call start() on it. The next MediaPlayer must be different from 'this'. An exception will be thrown if next == this. The application may call setNextMediaPlayer(null) to indicate no next player should be started at the end of playback. If the current player is looping, it will keep looping and the next player will not be started.
Parameters next
MediaPlayer
: the player to start after this one completes playback.setOnBufferingUpdateListener
Added in API level 1public void setOnBufferingUpdateListener (MediaPlayer.OnBufferingUpdateListener listener)
Register a callback to be invoked when the status of a network stream's buffer has changed.
Parameters listener
MediaPlayer.OnBufferingUpdateListener
: the callback that will be run.setOnCompletionListener
Added in API level 1public void setOnCompletionListener (MediaPlayer.OnCompletionListener listener)
Register a callback to be invoked when the end of a media source has been reached during playback.
Parameters listener
MediaPlayer.OnCompletionListener
: the callback that will be runsetOnDrmConfigHelper
Added in API level 26public void setOnDrmConfigHelper (MediaPlayer.OnDrmConfigHelper listener)
Register a callback to be invoked for configuration of the DRM object before the session is created. The callback will be invoked synchronously during the execution of
prepareDrm(java.util.UUID)
.Parameters listener
MediaPlayer.OnDrmConfigHelper
: the callback that will be runsetOnDrmInfoListener
Added in API level 26public void setOnDrmInfoListener (MediaPlayer.OnDrmInfoListener listener)
Register a callback to be invoked when the DRM info is known.
Parameters listener
MediaPlayer.OnDrmInfoListener
: the callback that will be runsetOnDrmInfoListener
Added in API level 26public void setOnDrmInfoListener (MediaPlayer.OnDrmInfoListener listener, Handler handler)
Register a callback to be invoked when the DRM info is known.
Parameters listener
MediaPlayer.OnDrmInfoListener
: the callback that will be runhandler
Handler
setOnDrmPreparedListener
Added in API level 26public void setOnDrmPreparedListener (MediaPlayer.OnDrmPreparedListener listener, Handler handler)
Register a callback to be invoked when the DRM object is prepared.
Parameters listener
MediaPlayer.OnDrmPreparedListener
: the callback that will be runhandler
Handler
: the Handler that will receive the callbacksetOnDrmPreparedListener
Added in API level 26public void setOnDrmPreparedListener (MediaPlayer.OnDrmPreparedListener listener)
Register a callback to be invoked when the DRM object is prepared.
Parameters listener
MediaPlayer.OnDrmPreparedListener
: the callback that will be runsetOnErrorListener
Added in API level 1public void setOnErrorListener (MediaPlayer.OnErrorListener listener)
Register a callback to be invoked when an error has happened during an asynchronous operation.
Parameters listener
MediaPlayer.OnErrorListener
: the callback that will be runsetOnInfoListener
Added in API level 3public void setOnInfoListener (MediaPlayer.OnInfoListener listener)
Register a callback to be invoked when an info/warning is available.
Parameters listener
MediaPlayer.OnInfoListener
: the callback that will be runsetOnMediaTimeDiscontinuityListener
Added in API level 28public void setOnMediaTimeDiscontinuityListener (MediaPlayer.OnMediaTimeDiscontinuityListener listener, Handler handler)
Sets the listener to be invoked when a media time discontinuity is encountered.
Parameters listener
MediaPlayer.OnMediaTimeDiscontinuityListener
: the listener called after a discontinuity This value cannot benull
.handler
Handler
: theHandler
that receives the listener events This value cannot benull
.setOnMediaTimeDiscontinuityListener
Added in API level 28public void setOnMediaTimeDiscontinuityListener (MediaPlayer.OnMediaTimeDiscontinuityListener listener)
Sets the listener to be invoked when a media time discontinuity is encountered. The listener will be called on the same thread as the one in which the MediaPlayer was created.
Parameters listener
MediaPlayer.OnMediaTimeDiscontinuityListener
: the listener called after a discontinuity This value cannot benull
.setOnPreparedListener
Added in API level 1public void setOnPreparedListener (MediaPlayer.OnPreparedListener listener)
Register a callback to be invoked when the media source is ready for playback.
Parameters listener
MediaPlayer.OnPreparedListener
: the callback that will be runsetOnSeekCompleteListener
Added in API level 1public void setOnSeekCompleteListener (MediaPlayer.OnSeekCompleteListener listener)
Register a callback to be invoked when a seek operation has been completed.
Parameters listener
MediaPlayer.OnSeekCompleteListener
: the callback that will be runsetOnSubtitleDataListener
Added in API level 28public void setOnSubtitleDataListener (MediaPlayer.OnSubtitleDataListener listener)
Sets the listener to be invoked when a subtitle track has new data available. The subtitle data comes from a subtitle track previously selected with
selectTrack(int)
. UsegetTrackInfo()
to determine which tracks are subtitles (of typeTrackInfo.MEDIA_TRACK_TYPE_SUBTITLE
), Subtitle track encodings can be determined byTrackInfo.getFormat()
).
SeeSubtitleData
for an example of querying subtitle encoding.
The listener will be called on the same thread as the one in which the MediaPlayer was created.Parameters listener
MediaPlayer.OnSubtitleDataListener
: the listener called when new data is available This value cannot benull
.setOnSubtitleDataListener
Added in API level 28public void setOnSubtitleDataListener (MediaPlayer.OnSubtitleDataListener listener, Handler handler)
Sets the listener to be invoked when a subtitle track has new data available. The subtitle data comes from a subtitle track previously selected with
selectTrack(int)
. UsegetTrackInfo()
to determine which tracks are subtitles (of typeTrackInfo.MEDIA_TRACK_TYPE_SUBTITLE
), Subtitle track encodings can be determined byTrackInfo.getFormat()
).
SeeSubtitleData
for an example of querying subtitle encoding.Parameters listener
MediaPlayer.OnSubtitleDataListener
: the listener called when new data is available This value cannot benull
.handler
Handler
: theHandler
that receives the listener events This value cannot benull
.setOnTimedMetaDataAvailableListener
Added in API level 23public void setOnTimedMetaDataAvailableListener (MediaPlayer.OnTimedMetaDataAvailableListener listener)
Register a callback to be invoked when a selected track has timed metadata available.
Currently only HTTP live streaming data URI's embedded with timed ID3 tags generates
TimedMetaData
.Parameters listener
MediaPlayer.OnTimedMetaDataAvailableListener
: the callback that will be runsetOnTimedTextListener
Added in API level 16public void setOnTimedTextListener (MediaPlayer.OnTimedTextListener listener)
Register a callback to be invoked when a timed text is available for display.
Parameters listener
MediaPlayer.OnTimedTextListener
: the callback that will be runsetOnVideoSizeChangedListener
Added in API level 3public void setOnVideoSizeChangedListener (MediaPlayer.OnVideoSizeChangedListener listener)
Register a callback to be invoked when the video size is known or updated.
Parameters listener
MediaPlayer.OnVideoSizeChangedListener
: the callback that will be runsetPlaybackParams
Added in API level 23public void setPlaybackParams (PlaybackParams params)
Sets playback rate using
PlaybackParams
. The object sets its internal PlaybackParams to the input, except that the object remembers previous speed when input speed is zero. This allows the object to resume at previous speed when start() is called. Calling it before the object is prepared does not change the object state. After the object is prepared, calling it with zero speed is equivalent to calling pause(). After the object is prepared, calling it with non-zero speed is equivalent to calling start().Parameters params
PlaybackParams
: the playback params. This value cannot benull
.Throws IllegalStateException
if the internal player engine has not been initialized or has been released. IllegalArgumentException
if params is not supported. setPreferredDevice
Added in API level 28public boolean setPreferredDevice (AudioDeviceInfo deviceInfo)
Specifies an audio device (via an
AudioDeviceInfo
object) to route the output from this MediaPlayer.Parameters deviceInfo
AudioDeviceInfo
: TheAudioDeviceInfo
specifying the audio sink or source. If deviceInfo is null, default routing is restored.Returns boolean
true if succesful, false if the specified AudioDeviceInfo
is non-null and does not correspond to a valid audio device.setScreenOnWhilePlaying
Added in API level 1public void setScreenOnWhilePlaying (boolean screenOn)
Control whether we should use the attached SurfaceHolder to keep the screen on while video playback is occurring. This is the preferred method over
setWakeMode(Context, int)
where possible, since it doesn't require that the application have permission for low-level wake lock access.Parameters screenOn
boolean
: Supply true to keep the screen on, false to allow it to turn off.setSurface
Added in API level 14public void setSurface (Surface surface)
Sets the
Surface
to be used as the sink for the video portion of the media. This is similar tosetDisplay(android.view.SurfaceHolder)
, but does not supportsetScreenOnWhilePlaying(boolean)
. Setting a Surface will un-set any Surface or SurfaceHolder that was previously set. A null surface will result in only the audio track being played. If the Surface sends frames to aSurfaceTexture
, the timestamps returned fromSurfaceTexture.getTimestamp()
will have an unspecified zero point. These timestamps cannot be directly compared between different media sources, different instances of the same media source, or multiple runs of the same program. The timestamp is normally monotonically increasing and is unaffected by time-of-day adjustments, but it is reset when the position is set.Parameters surface
Surface
: TheSurface
to be used for the video portion of the media.Throws IllegalStateException
if the internal player engine has not been initialized or has been released. setSyncParams
Added in API level 23public void setSyncParams (SyncParams params)
Sets A/V sync mode.
Parameters params
SyncParams
: the A/V sync params to apply This value cannot benull
.Throws IllegalStateException
if the internal player engine has not been initialized. IllegalArgumentException
if params are not supported. setVideoScalingMode
Added in API level 16public void setVideoScalingMode (int mode)
Sets video scaling mode. To make the target video scaling mode effective during playback, this method must be called after data source is set. If not called, the default video scaling mode is
VIDEO_SCALING_MODE_SCALE_TO_FIT
.The supported video scaling modes are:
Parameters mode
int
: target video scaling mode. Must be one of the supported video scaling modes; otherwise, IllegalArgumentException will be thrown.setVolume
Added in API level 1public void setVolume (float leftVolume, float rightVolume)
Sets the volume on this player. This API is recommended for balancing the output of audio streams within an application. Unless you are writing an application to control user settings, this API should be used in preference to
AudioManager.setStreamVolume(int, int, int)
which sets the volume of ALL streams of a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0. UI controls should be scaled logarithmically.Parameters leftVolume
float
: left volume scalarrightVolume
float
: right volume scalarsetWakeMode
Added in API level 1public void setWakeMode (Context context, int mode)
Set the low-level power management behavior for this MediaPlayer. This can be used when the MediaPlayer is not playing through a SurfaceHolder set with
setDisplay(android.view.SurfaceHolder)
and thus can use the high-levelsetScreenOnWhilePlaying(boolean)
feature.This function has the MediaPlayer access the low-level power manager service to control the device's power usage while playing is occurring. The parameter is a combination of
PowerManager
wake flags. Use of this method requiresManifest.permission.WAKE_LOCK
permission. By default, no attempt is made to keep the device awake during playback.Parameters context
Context
: the Context to usemode
int
: the power/wake mode to setSee also:
start
Added in API level 1public void start ()
Starts or resumes playback. If playback had previously been paused, playback will continue from where it was paused. If playback had been stopped, or never started before, playback will start at the beginning.
Throws IllegalStateException
if it is called in an invalid state stop
Added in API level 1public void stop ()
Stops playback after playback has been started or paused.
Throws IllegalStateException
if the internal player engine has not been initialized. Protected methods
finalize
Added in API level 1protected void finalize ()
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the
finalize
method to dispose of system resources or to perform other cleanup.The general contract of
finalize
is that it is invoked if and when the Java virtual machine has determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, except as a result of an action taken by the finalization of some other object or class which is ready to be finalized. Thefinalize
method may take any action, including making this object available again to other threads; the usual purpose offinalize
, however, is to perform cleanup actions before the object is irrevocably discarded. For example, the finalize method for an object that represents an input/output connection might perform explicit I/O transactions to break the connection before the object is permanently discarded.The
finalize
method of classObject
performs no special action; it simply returns normally. Subclasses ofObject
may override this definition.The Java programming language does not guarantee which thread will invoke the
finalize
method for any given object. It is guaranteed, however, that the thread that invokes finalize will not be holding any user-visible synchronization locks when finalize is invoked. If an uncaught exception is thrown by the finalize method, the exception is ignored and finalization of that object terminates.After the
finalize
method has been invoked for an object, no further action is taken until the Java virtual machine has again determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, including possible actions by other objects or classes which are ready to be finalized, at which point the object may be discarded.The
finalize
method is never invoked more than once by a Java virtual machine for any given object.Any exception thrown by the
finalize
method causes the finalization of this object to be halted, but is otherwise ignored.Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2024-12-18 UTC.
[null,null,["Last updated 2024-12-18 UTC."],[],[]] - If the looping mode was being set to true with