Baseflow / Baseflow/XamarinMediaManager

Cannot play audio from stream in Android

Open
#913 3 comments 0 reactions 0 assignees View on GitHub
Dominant language
C#
Stars
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Forks
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Description

## 🐛 Bug Report

Can not play audio from stream in Android. This part was working in Xamarin. But in MAUI gives this error

```
Playback error
[ExoPlayerImplInternal] com.google.android.exoplayer2.ExoPlaybackException: Unexpected runtime error
[ExoPlayerImplInternal] at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:628)
[ExoPlayerImplInternal] at android.os.Handler.dispatchMessage(Handler.java:102)
[ExoPlayerImplInternal] at android.os.Looper.loopOnce(Looper.java:240)
[ExoPlayerImplInternal] at android.os.Looper.loop(Looper.java:351)
[ExoPlayerImplInternal] at android.os.HandlerThread.run(HandlerThread.java:67)
[ExoPlayerImplInternal] Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'com.google.android.exoplayer2.upstream.DataSource com.google.android.exoplayer2.upstream.DataSource$Factory.createDataSource()' on a null object reference
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.ProgressiveMediaSource.createPeriod(ProgressiveMediaSource.java:292)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.MaskingMediaPeriod.createPeriod(MaskingMediaPeriod.java:128)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.MaskingMediaSource.createPeriod(MaskingMediaSource.java:100)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.ConcatenatingMediaSource.createPeriod(ConcatenatingMediaSource.java:489)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.MaskingMediaPeriod.createPeriod(MaskingMediaPeriod.java:128)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.source.MaskingMediaSource.createPeriod(MaskingMediaSource.java:100)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.MediaSourceList.createPeriod(MediaSourceList.java:315)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.MediaPeriodHolder.createMediaPeriod(MediaPeriodHolder.java:433)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.MediaPeriodHolder.(MediaPeriodHolder.java:108)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.MediaPeriodQueue.enqueueNextMediaPeriodHolder(MediaPeriodQueue.java:190)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.ExoPlayerImplInternal.maybeUpdateLoadingPeriod(ExoPlayerImplInternal.java:1983)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.ExoPlayerImplInternal.updatePeriods(ExoPlayerImplInternal.java:1970)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:968)
[ExoPlayerImplInternal] at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:502)

```
### Expected behavior

Should be able to play meditation from memory stream

### Reproduction steps

Play audio file from stream

```
Stream stream = new MemoryStream(file.Bytes);
await CrossMediaManager.Current.Play(new MediaItem
{
Data = stream,
MediaType = MediaType.Audio,
MediaLocation = MediaLocation.InMemory,
MimeType = MediaManager.Media.MimeType.AudioMp3,
});
```

### Configuration

**Version:** 1.2.2

**Platform:**
- [ ] :robot: Android 13
- [ ] :monkey: MAUI
- [ ] .NET 8

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the issue with the provided MemoryStream and MediaItem example on Android, then trace how the Android ExoPlayer media source is created for in-memory audio. Done means the MP3 meditation stream plays without the reported ExoPlayer NullPointerException.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, csharp
Domain
audio-video-rtc, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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