[WIP] Voice commands for Slicer module

[diazandr3s]

• Add the button to record a 5-second audio

[diazandr3s]

Added the Record Prompt button and mic icon

The official 3DSlicer install package on Windows/Linux does not contain the mediaservice plugins and so it is normal to get the error:

[Qt] defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.audiosource"

This can be fixed by copying all shared libraries from my Qt install folder:

Windows: c:\Qt\5.15.2\msvc2019_64\plugins\mediaservice    
Linux: /usr/lib/x86_64-linux-gnu/qt5/plugins/mediaservice

To the Slicer install tree:

Windows: "c:\Users\andra\AppData\Local\slicer.org\Slicer 5.8.0\lib\QtPlugins\mediaservice"   
Linux: ./Slicer-5.8.0-linux-amd64/

In Linux, you may need to install mediaservice by using the following commands:

sudo apt-get install gstreamer1.0-libav gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly

sudo apt-get install libgstreamer1.0-dev

Currently getting the following error:

[Qt] QMediaRecorder::FormatError : Not compatible codecs and container format.
[Qt] QMediaRecorder::FormatError : Not compatible codecs and container format.
[Qt] Could not create a media muxer element: ""
[Qt] QMediaRecorder::FormatError : Failed to build media capture pipeline.

CC: @lassoan

[lassoan]

It works well for me on Windows. What operating systems you have tried this on and with what results?

[lassoan]

It might also help if you query the list of supported settings:

#include <QMediaRecorder>
#include <QAudioEncoderSettings>

QMediaRecorder *recorder = new QMediaRecorder(yourMediaObject);

QList<QString> supportedCodecs = recorder->supportedAudioCodecs();
QList<int> supportedSampleRates = recorder->supportedAudioSampleRates();
QList<int> supportedBitRates = recorder->supportedAudioBitRates();
QList<int> supportedChannelCounts = recorder->supportedAudioChannels();
QList<QMultimedia::EncodingMode> supportedEncodingModes = recorder->supportedAudioEncodingModes();
```