Re: [android-developers] Re: android 1.5: How do we use the AudioTrack class?
Arijasoft developed android online radio SDK
using this AOR SDK you can play shoutcast/icecast ( mp3/aac) radio streams
on android
for more details look in to
http://demos.arijasoft.com/Arija_Android_Dev/aorsdkrelease.php
http://demos.arijasoft.com/Arija_Android_Dev/aorsdkrelease.phpThanks
On Thu, Jun 25, 2009 at 8:27 PM, sasq jonas.minnb...@gmail.com wrote:
I get this to work fine through something like
audioTrack.setPositionNotificationPeriod(bufSize/8);
audioTrack.setPlaybackPositionUpdateListener(this);
...
public void onPeriodicNotification(AudioTrack track) {
int frames = track.getPositionNotificationPeriod();
track.write(samples, 0, frames*2);
}
However - the callback is *Not* called from the thread that created
the AudioTrack (as it says in the documentation) but from the UI
thread, so you have to make sure you never write so you fill the
buffer or the UI thread will block.
On May 5, 10:45 am, blindfold seeingwithso...@gmail.com wrote:
On May 1, 6:43 pm, Jean-Michel jmtr...@gmail.com wrote: Blindfold,
Yes, with the marker set at 1000 I would now *sometimes* get the
onMarkerReached() callback, but extremely rarely (maybe once in a
hundred one-second 8-bit mono PCM sample playbacks on my ADP, which is
why I had not even noticed it at first). It may depend on parameter
settings, sample length, CPU load, whatever, but for my use it is
totally unreliable and useless. At least it proves that my coding was
not totally wrong, or else the callback would *never* have been
invoked. :-)
I think we need some feedback from the Android Team about how
onMarkerReached() is supposed to behave or under what conditions it
works. Some undocumented statement order that one has to adhere to?
Timing assumptions? By contrast, MediaPlayer's OnCompletionListener()
works just fine for me.
Thanks
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Thank you,
Dilli Rao. M
www.arijasoft.com
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[android-developers] Re: android 1.5: How do we use the AudioTrack class?
I get this to work fine through something like
audioTrack.setPositionNotificationPeriod(bufSize/8);
audioTrack.setPlaybackPositionUpdateListener(this);
...
public void onPeriodicNotification(AudioTrack track) {
int frames = track.getPositionNotificationPeriod();
track.write(samples, 0, frames*2);
}
However - the callback is *Not* called from the thread that created
the AudioTrack (as it says in the documentation) but from the UI
thread, so you have to make sure you never write so you fill the
buffer or the UI thread will block.
On May 5, 10:45 am, blindfold seeingwithso...@gmail.com wrote:
On May 1, 6:43 pm, Jean-Michel jmtr...@gmail.com wrote: Blindfold,
Yes, with the marker set at 1000 I would now *sometimes* get the
onMarkerReached() callback, but extremely rarely (maybe once in a
hundred one-second 8-bit mono PCM sample playbacks on my ADP, which is
why I had not even noticed it at first). It may depend on parameter
settings, sample length, CPU load, whatever, but for my use it is
totally unreliable and useless. At least it proves that my coding was
not totally wrong, or else the callback would *never* have been
invoked. :-)
I think we need some feedback from the Android Team about how
onMarkerReached() is supposed to behave or under what conditions it
works. Some undocumented statement order that one has to adhere to?
Timing assumptions? By contrast, MediaPlayer's OnCompletionListener()
works just fine for me.
Thanks
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[android-developers] Re: android 1.5: How do we use the AudioTrack class?
On May 1, 6:43 pm, Jean-Michel jmtr...@gmail.com wrote: Blindfold, Yes, with the marker set at 1000 I would now *sometimes* get the onMarkerReached() callback, but extremely rarely (maybe once in a hundred one-second 8-bit mono PCM sample playbacks on my ADP, which is why I had not even noticed it at first). It may depend on parameter settings, sample length, CPU load, whatever, but for my use it is totally unreliable and useless. At least it proves that my coding was not totally wrong, or else the callback would *never* have been invoked. :-) I think we need some feedback from the Android Team about how onMarkerReached() is supposed to behave or under what conditions it works. Some undocumented statement order that one has to adhere to? Timing assumptions? By contrast, MediaPlayer's OnCompletionListener() works just fine for me. Thanks I can get onMarkerReached() called for a STATICAudioTrackinstance. A few things you might want to try: - the marker position must be set in frames, not bytes. So make sure you're not giving a marker position that's not beyond your content. For instance if your content is stereo/8bit, you must divide the size by two, by four for stereo/16bit, to go from data size to frame count. - try setting a really low value for your marker position, like 10, to see if it gets called. - if all that still doesn't work, I'd start checking in which thread the callback is supposed to be called. By default it's in the same thread as the one in which you created yourAudioTrackinstance. If you want it to be called from a different thread, use setPlaybackPositionUpdateListener(listener, handler) where you pass the handler of the thread you want to use. Hope this helps. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
No success stories on onMarkerReached() from others, so I've now submitted a bug report http://code.google.com/p/android/issues/detail?id=2563 Regards On May 1, 12:37 pm, blindfold seeingwithso...@gmail.com wrote: Should I file a bug report for Cupcake's onMarkerReached() inAudioTrackplayback? The only workaround I currently have for onMarkerReached() never getting invoked is to explicitly poll getPlaybackHeadPosition(), while taking into account extra margins for sample rates 11025 and 22050 because there the getPlaybackHeadPosition () does not quite reach the expected end values - as described in my previous post. Regards On Apr 30, 10:02 pm, blindfold seeingwithso...@gmail.com wrote: Has anybody had any success with OnPlaybackPositionUpdateListener? I'm successfully playing one-second PCM sound clips withAudioTrackin MODE_STATIC mode (although the playback often appears truncated), but no matter what I do, onMarkerReached() is never called. I set setNotificationMarkerPosition() to a position a bit less than my sample count. I do not have any such problems with its MediaPlayer counterpart setOnCompletionListener(). I simply want onMarkerReached() to run when myAudioTrackinstance has finished playing, but the getPlayState() remains PLAYSTATE_PLAYING after myAudioTrackhas finished sounding. What might be wrong? What does it take to get AudioTrackto run onMarkerReached() at the end of the data? Any concrete sample code for this that works? Another strange thing is that at the end of a one second sound at sample rate 16000, getPlaybackHeadPosition() returns 16000 as expected, but for a sample rate of 22050 getPlaybackHeadPosition() becomes consistently 22016, for a sample rate of 11025 getPlaybackHeadPosition() becomes 11008, while for a sample rate of 8000 the getPlaybackHeadPosition() returns consistently 8000 again. Are the discrepancies for sample rates of 11025 and 22050 due to rounding inaccuracies in theAudioTracksample rate divider? Thanks --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Blindfold, I can get onMarkerReached() called for a STATIC AudioTrack instance. A few things you might want to try: - the marker position must be set in frames, not bytes. So make sure you're not giving a marker position that's not beyond your content. For instance if your content is stereo/8bit, you must divide the size by two, by four for stereo/16bit, to go from data size to frame count. - try setting a really low value for your marker position, like 10, to see if it gets called. - if all that still doesn't work, I'd start checking in which thread the callback is supposed to be called. By default it's in the same thread as the one in which you created your AudioTrack instance. If you want it to be called from a different thread, use setPlaybackPositionUpdateListener(listener, handler) where you pass the handler of the thread you want to use. Hope this helps. On May 1, 3:37 am, blindfold seeingwithso...@gmail.com wrote: Should I file a bug report for Cupcake's onMarkerReached() inAudioTrackplayback? The only workaround I currently have for onMarkerReached() never getting invoked is to explicitly poll getPlaybackHeadPosition(), while taking into account extra margins for sample rates 11025 and 22050 because there the getPlaybackHeadPosition () does not quite reach the expected end values - as described in my previous post. Regards On Apr 30, 10:02 pm, blindfold seeingwithso...@gmail.com wrote: Has anybody had any success with OnPlaybackPositionUpdateListener? I'm successfully playing one-second PCM sound clips withAudioTrackin MODE_STATIC mode (although the playback often appears truncated), but no matter what I do, onMarkerReached() is never called. I set setNotificationMarkerPosition() to a position a bit less than my sample count. I do not have any such problems with its MediaPlayer counterpart setOnCompletionListener(). I simply want onMarkerReached() to run when myAudioTrackinstance has finished playing, but the getPlayState() remains PLAYSTATE_PLAYING after myAudioTrackhas finished sounding. What might be wrong? What does it take to get AudioTrackto run onMarkerReached() at the end of the data? Any concrete sample code for this that works? Another strange thing is that at the end of a one second sound at sample rate 16000, getPlaybackHeadPosition() returns 16000 as expected, but for a sample rate of 22050 getPlaybackHeadPosition() becomes consistently 22016, for a sample rate of 11025 getPlaybackHeadPosition() becomes 11008, while for a sample rate of 8000 the getPlaybackHeadPosition() returns consistently 8000 again. Are the discrepancies for sample rates of 11025 and 22050 due to rounding inaccuracies in theAudioTracksample rate divider? Thanks --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Should I file a bug report for Cupcake's onMarkerReached() in AudioTrack playback? The only workaround I currently have for onMarkerReached() never getting invoked is to explicitly poll getPlaybackHeadPosition(), while taking into account extra margins for sample rates 11025 and 22050 because there the getPlaybackHeadPosition () does not quite reach the expected end values - as described in my previous post. Regards On Apr 30, 10:02 pm, blindfold seeingwithso...@gmail.com wrote: Has anybody had any success with OnPlaybackPositionUpdateListener? I'm successfully playing one-second PCM sound clips with AudioTrack in MODE_STATIC mode (although the playback often appears truncated), but no matter what I do, onMarkerReached() is never called. I set setNotificationMarkerPosition() to a position a bit less than my sample count. I do not have any such problems with its MediaPlayer counterpart setOnCompletionListener(). I simply want onMarkerReached() to run when my AudioTrack instance has finished playing, but the getPlayState() remains PLAYSTATE_PLAYING after my AudioTrack has finished sounding. What might be wrong? What does it take to get AudioTrack to run onMarkerReached() at the end of the data? Any concrete sample code for this that works? Another strange thing is that at the end of a one second sound at sample rate 16000, getPlaybackHeadPosition() returns 16000 as expected, but for a sample rate of 22050 getPlaybackHeadPosition() becomes consistently 22016, for a sample rate of 11025 getPlaybackHeadPosition() becomes 11008, while for a sample rate of 8000 the getPlaybackHeadPosition() returns consistently 8000 again. Are the discrepancies for sample rates of 11025 and 22050 due to rounding inaccuracies in the AudioTrack sample rate divider? Thanks --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Has anybody had any success with OnPlaybackPositionUpdateListener? I'm successfully playing one-second PCM sound clips with AudioTrack in MODE_STATIC mode (although the playback often appears truncated), but no matter what I do, onMarkerReached() is never called. I set setNotificationMarkerPosition() to a position a bit less than my sample count. I do not have any such problems with its MediaPlayer counterpart setOnCompletionListener(). I simply want onMarkerReached() to run when my AudioTrack instance has finished playing, but the getPlayState() remains PLAYSTATE_PLAYING after my AudioTrack has finished sounding. What might be wrong? What does it take to get AudioTrack to run onMarkerReached() at the end of the data? Any concrete sample code for this that works? Another strange thing is that at the end of a one second sound at sample rate 16000, getPlaybackHeadPosition() returns 16000 as expected, but for a sample rate of 22050 getPlaybackHeadPosition() becomes consistently 22016, for a sample rate of 11025 getPlaybackHeadPosition() becomes 11008, while for a sample rate of 8000 the getPlaybackHeadPosition() returns consistently 8000 again. Are the discrepancies for sample rates of 11025 and 22050 due to rounding inaccuracies in the AudioTrack sample rate divider? Thanks --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Hi, the buffer won't play in stream mode until you have filled it all the way the first time. So make sure you are writing at least 256K of data in the first write call. You can actually create the AudioTrack object, then say Play() and write data to it after it's playing (in stream mode). Once the buffer reaches the buffer size, it will start to play. Then just keep the buffer full. -niko On Apr 23, 12:24 pm, Moto medicalsou...@gmail.com wrote: I'm currently initiating the AudioTrack() for MODE_STREAM. I load some bytes using the write() and I see that it is working but once hit the play() call nothing happens... what is the matter? should I do something else that is not obvious?? Any tips Google friends? My settings: streamType - STREAM_MUSIC sampleRateInHz - 44100 channelConfig - CHANNEL_CONFIGURATION_STEREO audioFormat - ENCODING_PCM_16BIT bufferSizeInBytes - 256K the total size (in bytes) of the buffer where audio data is read from for playback. mode - MODE_STREAM thanks! -Moto! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Hey Niko thanks for your reply... I'm not sure if I can stream mpeg or aacp streams it seems like it's only PCM format... :( --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Help? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
You can play from a stream if you capture the stream in your program and stream the audio to the mediaplayer. There is no direct support of audio streams, execpt directly from server. This sollution is somewhere in the docs... On 26 apr, 18:27, Moto medicalsou...@gmail.com wrote: Help? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Yeah, currently that's my method... o well I thought something like the AudioTrack would be nice... were you can select the type of audio to decode not just PCM :( --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
I thought you could continuously write data into the AudioTrack as long as the buffer size specified at the creation of the AudioTrack was not exceeded... and you can call play() as long as there was enough data to start playback... --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Ok at this point I only get white noise? do I need to set the decoder? it's an MPEG stream could a AAC+ be now supporteD? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
AudioTrack plays PCM data. The reason it sounds like noise is because that's what mpeg sounds like when interpreted as PCM. On Thu, Apr 23, 2009 at 3:44 PM, Moto medicalsou...@gmail.com wrote: Ok at this point I only get white noise? do I need to set the decoder? it's an MPEG stream could a AAC+ be now supporteD? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
lol yeah definitely true! But for some reason I thought it would be decoded into a playable format... How do we play AAC+ formats and MPEG formats? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Use the MediaPlayer class. On Thu, Apr 23, 2009 at 6:35 PM, Moto medicalsou...@gmail.com wrote: lol yeah definitely true! But for some reason I thought it would be decoded into a playable format... How do we play AAC+ formats and MPEG formats? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
The issue is that you still can't stream from a radio station online only an MP3 file from a server... Romain Guy could you help? ^.^ Thanks Marco! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: android 1.5: How do we use the AudioTrack class?
Up to now I feel very discouraged by the new libraries... Yes they are doing many good things for Media but when it comes to streaming internet radios this really sucks... or maybe I'm just not understanding how to do this... :( Please help... --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
