Android :: MediaPlayer Provides Wrong Duration On Audio Streaming
May 27, 2010
I am having the following problem: I am using Android's MediaPlayer to play an mp3 through an HTTP connection. The audio is played correctly, but the MediaPlayer returns an incorrect duration (calling mediaPlayer.getDuration() ). Depending on the mp3 the duration is either shorter or longer. The code that plays the audio is the following:
mediaPlayer = new MediaPlayer(); mediaPlayer.setOnCompletionListener(this); mediaPlayer.setOnErrorListener(this); mediaPlayer.setOnPreparedListener(this); mediaPlayer.setOnBufferingUpdateListener(this); mediaPlayer.setDataSource("a valid URL"); mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayer.prepareAsync();............................
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Dec 27, 2009
I've been trying to stream mp3's over http using Android's built in MediaPlayer class. The documentation would suggest to me that this should be as easy as :
MediaPlayer mp = new MediaPlayer();
mp.setDataSource(URL_OF_FILE);
mp.prepare();
mp.start();
However I am getting the following repeatedly. I have tried different URLs as well. Please don't tell me that streaming doesn't work on mp3's.
E/PlayerDriver( 31): Command PLAYER_SET_DATA_SOURCE completed with an error or info PVMFErrNotSupported
W/PlayerDriver( 31): PVMFInfoErrorHandlingComplete
E/MediaPlayer( 198): error (1, -4)
E/MediaPlayer( 198): start called in state 0
E/MediaPlayer( 198): error (-38, 0)
E/MediaPlayer( 198): Error (1,-4)
E/MediaPlayer( 198): Error (-38,0)
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Nov 8, 2010
In my music app, i would like to play live streaming like radio broadcasting with mediaplayer as Mediaplayer mp = new Mediaplayer(); mp.setDataSource(LiveStreamingURL); mp.prepare(); mp.start(); but after playing for few seconds it is stopped. I dont know how to overcome it. Give me your suggestions for this.
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Aug 5, 2010
When I stream music using the MediaPlayer, it gives me the wrong song duration. Has anyone else encountered this?
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Feb 17, 2009
I am developing a media player which will download the media content from network (Shoutcast) It works fine. Problem is a small gap between players (2 players) I am using two mediaplayers to play the data while a thread downloads and stores the data and stores in to 100Kb files continuously. on first players oncompletelistener() i started the second player wise versa. I think there is a problem with mp3 frames(header sync byte) while splitting 100kb files. how to resole the gap between players.
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Mar 24, 2010
I'm trying to write a light-weight HTTP server in my app to feed dynamically generated MP3 data to the built-in Android MediaPlayer. I am not permitted to store my content on the SD card. My input data is essentially of an infinite length. I tell MediaPlayer that its data source should basically be something like "http://localhost/myfile.mp3". I've a simple server set up that waits for MediaPlayer to make this request. However, MediaPlayer isn't very cooperative. At first, it makes an HTTP GET and tries to grab the whole file. It times out if we try and simply dump data into the socket so we tried using the HTTP Range header to write data in chunks. MediaPlayer doesn't like this and doesn't keep requesting the subsequent chunks.
Has anyone had any success streaming data directly into MediaPlayer? Do I need to implement an RTSP or Shoutcast server instead? Am I simply missing a critical HTTP header? What strategy should I use here?.................
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Nov 17, 2010
SDK level 8 (Froyo) has introduced the native capability for the MediaPlayer to connect to a streaming source, like Shoutcast. Previous SDK versions were able to do workarounds, such as run a local proxy on the device (see NPR). I took the same approach as NPR and am using a StreamProxy. However, NPR first checks if the currently running SDK is less than 8. If so, it uses the proxy. Otherwise, it connects directly. My StreamProxy requests metadata from the Shoutcast server, so it does not simply route the data from Shoutcast to my client. Instead, it parses out metadata and uses it accordingly, and only routes the music data.
When trying to use the StreamProxy at SDK level 8 or above, the MediaPlayer fails to prepare. My StreamProxy receives the connection and accepts it, but after successfully writing out the status line and headers to the client, the next write produces "java.net.SocketException: Connection reset by peer". This results in the client's mediaplayer throwing an "Error(1,-1007)". I am trying to figure out why the MediaPlayer is unable to connect to my local proxy. It should be the same as connecting to the original source without the metadata, which does work. I am forwarding on all headers from the external source, through my proxy, which includes content-type.
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Dec 18, 2009
I have an app that streams mp3's from a server, works fine on 1.5 and lower. But on the droid, for certain songs the mediaplayer buffers to like over 50% but onPrepared() is never called. These same songs work fine on 1.5 or on a 2.0 emulator but for some reason they just hang on the actual droid phone. No mediaplayer errors are thrown but if i call stop or reset it while it is hanging like this, it throws this,
12-18 19:14:05.230: ERROR/MediaPlayer(15718): stop called in state 4 12-18 19:14:05.230: ERROR/MediaPlayer(15718): error (-38, 0) 12-18 19:14:05.238: ERROR/PlayerDriver(987): Command (6) was cancelled
it is only for certain files (yes they are all mp3s) and only on the droid. Anyone have any ideas why these songs would hang? I already checked the http headers and they are correct.
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Sep 17, 2010
I've got a question related to the Android MediaPlayer. Can it stream content through HTTP POST method , or do I have to write my own implementation? If so, what SDK do I have to use?
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Aug 25, 2010
The company I work for is developing an Android App that plays a video file from a URL on web. The
video URL is a parameter for a PHP script that encode it properly and redirects to the encoded video as shown below:
header('Content-Type: video/'.$format);
header('Location:'.$output_video);
Where $output_video is the URL to the encoded video (it works if we use this URL in the browser) and $format is the video format. But when I try executing the MediaPlayerDemo_Video from the API Demos using the streaming mode, I get an error like this:
MediaPlayer Command PLAYER INIT completed with an error or info PVMFErrCorrupt
MediaPlayer error (1. -10)
MediaPlayer Error (1.-10)
If we hard-code the URL and format in the PHP script, it also does not work out, but with a different error:
MediaPlayer info/warning (1. 28)
MediaPlayer Info (1 .28)
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Sep 22, 2010
I am trying to create a small application for streaming radio broadcast that is in video/x-ms-asf format. the url has a .asx extension at the end. I have come to know that Android does not support this format currently, what other format for streaming broadcasts does it support so I can request that from the radio?
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Apr 23, 2010
I am maintaining a streaming music player, and I'm running into a similar problem as http://www.last.fm/group/Last.fm+Android/forum/114391/_/593575
My player stop after roughly 1-2 minutes, and there are no log messages except for "I/AudioHardwareQSD( 52): AudioHardware pcm playback is going to standby" just after the playback stops.
This happens when I run it on the Nexus One over 3G. It does not happen over Wifi, and it does not happen on my HTC Hero with android 1.5 over 3G.
Do you guys have any hints on how to debug this? Is it e.g. possible to monitor the memory available to the media player object?
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Apr 27, 2010
Does anyone know the filepath for an Archos? I'm trying to get some media/audio to play, and it just won't find it...
public void onClick(View v1) {
final MediaPlayer mp = new MediaPlayer();
try {
mp.setDataSource("ARCHOS5:/Music/manowar.mp3");
mp.start();
Toast.makeText(Textbox.this, "Working", Toast.LENGTH_LONG).show();
mp.setLooping(true);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();............................
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Nov 27, 2009
I am trying to make a very simple radio player for Android and I cannot get the audio streaming to work. In my latest attempt it plays for about 1 second and stops for some streams and it doesnt work at all for some other streams. Logcat doesn't give much useful information to me. I am testing on HTC Hero (Android 1.5).
If I hook the completion and buffer events I see the audio gets a complete event but it keeps buffering. Is there anything wrong with the code below? Should I be able to stream the the audio streams below? Is there a complete example somewhere of a working radio streaming?................
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Feb 8, 2010
I want to create an Android application that is a client for an Internet radio station. And I want it look native to Android? But im confused with Android API logic and documentation. What i've got is that I need MediaPlayer and MediaController classes. Am I right, and is there any good example of AUDIO player for Android?
Especially, I'm very interested how to use MediaPlayer and MediaController classes together.
UPD:
Finally I've got the code, that does exactly what I want:
CODE:..............
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Aug 21, 2010
I'm trying to create a way to adjust volume settings for each of the different streams (media, notification, ringtone, etc) and have a way to preview the output sound level of each stream. I believe I have the correct implementation, but when I set the output stream type, there is no sound that plays.
Here is the code that correctly plays the user's selected alarm sound:
CODE:.................
That commented out line is what is causing me problems. I would like to hear the alarm sound at the volume levels of the different audio streams, but when I include that line for STREAM_ALARM or any other audio stream, no sound at all plays.
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Apr 8, 2009
Some audio files return 0 from MediaPlayer.getDuration(), even though they're perfectly valid files that play ok and that players on Windows can find the duration of. There seem to be two different cases here: certain file types such as .wma and .wav always return 0 duration, and others only do so sometimes. I haven't been able to find any pattern in the latter case, but it does seem consistent per file. The music player displays 0:00 duration for these, so it's not just my code.
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Oct 13, 2009
Is it now possible mit sdk1.6 the audio decoder to access/use without using MediaPlayer ?
I saw : New version of OpenCore
Android 1.6 includes the updated OpenCore 2 media engine, which has:
* Support for OpenMAX encoders* Support for additional audio codecs in AuthorEngine* Improved buffering model supports shared buffers allocated in the decoder. but dont know how!
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Jun 16, 2009
I have the following native source code that is supposed to display video. It plays 3gp file ok and I can hear the audio, but the video is not shown.
CODE:..............
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Nov 18, 2009
I have a activity which is called from another activity as an intent... This activity loads and starts playing a audio file. All is good - that much works. The activity also has a "stop" button and that stops the audio from playing - that is also fine.
But how do I stop the file from playing if the user uses the back button to leave the activity without clicking on the "Stop" button?
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Aug 26, 2009
I'd like to be able to keep tabs on my dogs while I'm away. Ideally, I picture an app running on my PC that can stream audio to my cell, when I run an app on my cell. Any ideas around this? And there can be monkeys in the middle (PC to webpage to phone).
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Jan 27, 2009
How can I integrate the cupcake audio streaming code into the existing android sdk?
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May 1, 2010
For my app, I need to record audio from MIC on an Android phone, and send it over TCP to the other android phone, where it needs to be played. I am using AudioRecord and AudioTrack class. This works great with a file - write audio to the file using DataOutputStream, and read from it using DataInputStream. However, if I obtain the same stream from a socket instead of a File, and try writing to it, I get an exception. I am at a loss to understand what could possibly be going wrong.
This is the code:.................
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Jun 22, 2010
I have developed a streaming app for Android. My app is streaming AAC audio.The app works fine on 1.5, 1.6, and 2.1. I tested it on Froyo, the android 2.2 and it does not work there.I have try everthing - Streaming directly from server url - Download incrementaly the content, store in a temp file, start reading. - Download incrementaly the content, store in a ContentProvider and start reading.No luck, I always got errors : 06-23 02:47:02.257: ERROR/MediaPlayer(266): Unable to to create media player 06-23 02:47:02.257: INFO/System.out(266): setDataSourceFD failed.: status=0x80000000 Does Froyo support AAC? Anyone happens to stream AAC?
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Sep 2, 2009
I am working on a music streaming application and cannot find APIs I can use for it (MediaPlayer supports files only local or HTTP). I have a few questions and would appreciate if someone can help me answering them.
Does Android SDK 1.5 support audio streaming (MP3 stream for example)? If does what API calls I can use? If doesn't what are the plans for future SDK releases that would support streaming? Are there any suggested work arounds until the streaming is supported (like temp files etc)?
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Jun 30, 2010
I have installed the 2.1 update on my HTC Hero yesterday, and happy as a puppy I instaleld my streaming app... Just to discover that it won't stream decently... It has to stream an mp3 stream and it works on my ADP 1.6 device, on a Samsung Galaxy S test-device (with 2.1) and on the 2.1 emulator...
Logcat is gettign the follwoing errors :
06-30 10:14:18.360: INFO/AudioPolicyService(56): stopOutput(): before lock
06-30 10:14:21.259: DEBUG/dalvikvm(1906): GC freed 28 objects / 1944 bytes in 186ms
06-30 10:14:21.439: INFO/AudioHardwareMSM72XX(56): AudioHardware pcm playback is going to standby.
06-30 10:14:21.439: DEBUG/StreamProcess(56): OutputStreamProcess::ResetAOLC()
06-30 10:14:22.919: INFO/AudioPolicyService(56): startOutput(): before lock
06-30 10:14:22.987: INFO/AudioHardwareMSM72XX(56): AUDIO_START: start kernel pcm_out driver.
06-30 10:14:26.329: DEBUG/dalvikvm(287): GC freed 11 objects / 488 bytes in 268ms
06-30 10:14:47.789: INFO/AudioPolicyService(56): stopOutput(): before lock
06-30 10:14:50.879: INFO/AudioHardwareMSM72XX(56): AudioHardware pcm playback is going to standby.
06-30 10:14:50.879: DEBUG/StreamProcess(56): OutputStreamProcess::ResetAOLC()
06-30 10:14:53.911: INFO/AudioPolicyService(56): startOutput(): before lock
06-30 10:14:54.022: INFO/AudioHardwareMSM72XX(56): AUDIO_START: start kernel pcm_out driver.
The result is a playing player, which stops (pauzes) every 10 seconds, the restarts This will work for about 8-10 restarts and then will simply stop without ever thrwoing an exception or something like that Which makes it somewhat difficult (if not impossible) to catch for us developers So has anyone been experiencing the same problem ? Does anyone have a clue if in this update another OpenCore lib has been used ? Does anyone have any solution ?
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Jul 11, 2010
I 've set Wowza streaming server to stream mp4 videos to Android phones. Android phone can play the RTSP stream successfully but here It only plays audio of the file not the video.
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Dec 30, 2009
When I pair my sprint htc hero to my car stereo, it always opens the default music player and starts playing a song. Can I prevent this from happening? I generally want to listen to pandora - and not my mp3's. Most annoying part is that the mp3's play simultaneously with pandora until I manually open that music app and pause the music.
There must be a way to either turn off the default action or to plug another program name into that defautl.
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May 24, 2010
I'm planning on building an application where audio media is going to be streamed to the mobile phone for the user to listen.The targets are smartphones: iPhone/Blackberry/Android/(J2ME ?).I see that streaming on iPhone has to be done with HTTP Live streaming, but I don't see it supported by other platforms.Should I broadcast the streams via rstp ? http ? Is there any way to use a unified solution for all the different mobile platform ? If anyone already had to go through this, help would be greatly appreciated.
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Nov 1, 2010
I am new in Android. I am using android os 2.2. I am trying to play streaming audio and video from url. I don't know what to do for that. after 3 days og googling i come to know that I have to use mediaPlayer and MediaController classes.I had use different differend combination of codes found on internet but not succeed.Can anybody guide me what to do for streaming audio/video playing. What about the UI if we use MediaPlayer or Controller class. is there any thing to related these in xml file of layout.if not then even please tell me what may be the code for that.please help me.
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