8000 Get audio sources list and change localstream audio · Issue #395 · flutter-webrtc/flutter-webrtc · GitHub
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LucMoreau33560 opened this issue Oct 27, 2020 · 15 comments
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Get audio sources list and change localstream audio #395

LucMoreau33560 opened this issue Oct 27, 2020 · 15 comments
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@LucMoreau33560
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Hello,

Is it possible to list all audio sources : headphones, speaker, bluetooth, ... available on the device ?
An how can I change from one to another during a call ?

Thank you,
Luc
@wer-mathurin
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wer-mathurin commented Oct 28, 2020 •
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You can use:
navigator.mediaDevices.getSources()

after you authorize the user to access media.

Look for device of kind == 'audiooutput'

After you can specify the deviceid is in the constraint.

Sorry I'm on my mobile, but I hope it give you enough direction

If you are using the web implementation, it will only work if you are using the master branch. See bug #367

@LucMoreau33560
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Hello,
Thank you, I'm using ios and android implementation.
I have to test more. For the moment the getSources() gives me 2 cameras and one audio (even if I plug a headphone, the audio source label becomes "écouteurs" (headphones in French). I was thinking that there will be 2 audio sources if I plug headphones. I don't have any bluetooth devices, I will get one tomorrow to test with a bluetooth device.

Another point, you said I have to specify the device id in the constraint, does it mean that I can't change audio source during the call ?

Thanks,
Luc

@gbmiranda
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I have the same problem, I can't see the audio outputs or disable the ear speaker

@LucMoreau33560
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Hello,
I have tested my devices (iphone 7 and Huawei P8 Lite) with a Jabra bluetooth headset BT2045.
The very simple code I wrote to list media devices is :
final mediaDevices = navigator.mediaDevices;
var devices = await mediaDevices.getSources();
for (int i=0; i<devices.length; i++){
print(devices[i]);
}

The result is the same on Android and iOS, and the result is the same if the bluetooth headset is connected or not :
IOS :
flutter: {deviceId: com.apple.avfoundation.avcapturedevice.built-in_video:0, label: Back Camera, facing: back, kind: videoinput}
flutter: {deviceId: com.apple.avfoundation.avcapturedevice.built-in_video:1, label: Front Camera, facing: front, kind: videoinput}
flutter: {deviceId: com.apple.avfoundation.avcapturedevice.built-in_audio:0, label: iPhone Micro, facing: , kind: audioinput}

ANDROID (All permissions (AUDIO, BLUETOOTH, ...) are present in AndroidManifest.xml) :
I/flutter (21295): {kind: videoinput, facing: back, label: Camera 0, Facing back, Orientation 90, deviceId: 0}
I/flutter (21295): {kind: videoinput, facing: front, label: Camera 1, Facing front, Orientation 270, deviceId: 1}
I/flutter (21295): {kind: audioinput, facing: , label: Audio, deviceId: audio-1}

Do I forgot something to have all audio devices listed ?

@gbmiranda
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And to access the two native speakers of the devices? How do I do?

I have a problem that I can't disable the ear speaker and use only the main one.

@LucMoreau33560
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LucMoreau33560 commented Nov 9, 2020 •
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Hello gbmiranda,
On my phones, when I simply call someone with the vanilla phone functionnality, I can select my audio sources bewteen phone ear speaker, the main speaker and bluetooth device.
If I plug a wire headset, the phone ear speaker is replaced by the wire headset. I can not choose between them. I have to unplug the wire headset if I want to use the phone ear speaker again.

Maybe I misunderstand your question, you just want to enable or disable the speaker.
In that case, I am using the following 3 lines of code to enable the speaker :
_remoteRenderer.srcObject.getAudioTracks()[0].enabled = true;
_remoteRenderer.srcObject.getAudioTracks()[0].setVolume(5);
_remoteRenderer.srcObject.getAudioTracks()[0].enableSpeakerphone(true);

@wer-mathurin
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@LucMoreau33560

You can look at the latest commit on the master.
I implemented a Helper class to start implementing basing functionality, change camera and so on.
Maybe we can add change audio source in the future. Feel free to provide a PR to add that :-)

For the web implementation, is a little bit easier, since we can provide a different constraints. Look at the code on switchCamera().

We can probably do the same thing for changeAudioOutput.

@wer-mathurin
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wer-mathurin commented Nov 30, 2020 •
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Related to #375 for the web implementation

@wer-mathurin wer-mathurin mentioned this issue Nov 30, 2020
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stale bot commented Feb 7, 2021

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale bot added the wontfix label Feb 7, 2021
@stale stale bot closed this as completed Feb 14, 2021
@thammaknot
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Is still feature (list all audio sources) still not working on mobile?

@wer-mathurin do you still have the link to the commit you referred to above?

You can look at the latest commit on the master.
I implemented a Helper class to start implementing basing functionality, change camera and so on.
Maybe we can add change audio source in the future. Feel free to provide a PR to add that :-)

Thank you

@wer-mathurin
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The helper class is:
flutter-webrtc/lib/src/helper.dart

Make sure you have accept the permission request for accessing camera and microphone before enumerating devices.

@thammaknot
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Thank you. Sorry I just got a chance to revisit this again.

I was hoping to see how you enumerate camera devices so that I could adapt the implementation for audio outputs. However, I couldn't find it in helper.dart; I probably misinterpreted your comment.

Would you be able to help point me in the right direction?
Starting from being able to enumerate all audio devices... do we need to start with native implementation?

@ycherniavskyi
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Have you try/look at something like audio_session plugin.

I am not sure that this functionality must be implemented within flutter-webrtc. If you have arguments/thoughts why must - let's discuss.

@thammaknot
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Thank you! I will check it out.

I don't think the webrtc constraint is a must.

@thammaknot
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I was able to the the audio input device IDs. However, webrtc's getUserMedia() does not seem to respect the device ID specified in the constraints.

Does FlutterWebRTC support selecting audio input by device IDs?
I tried hardcoding the sourceId, but the audio seems to always come from the default mic.

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@ycherniavskyi @thammaknot @gbmiranda @LucMoreau33560 @wer-mathurin
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