feat: Increase default fps

The default has been bumped up to 100 fps. This value is never
actually reached - the resulting fps hover mostly around 40-70.
During testing on my rather powerful machine (with values exceeding
250 fps), the observed frame rate never got appreciably higher than
100 fps (maximum was 127 fps for short periods at 1000).
Thus, the profiles in their default configuration capture all
activity.
Choosing a lower frame rate decreases the fps accordingly. 25 fps is
at the lower end of what is perceived as fluid motion, though using
that yields an actual frame rate around 12-18. Further tuning is
possible via the "Podcast->FramesPerSecond" setting and the
preferences dialog.

A max value of 100 yields around 40-70 fps

Author: Vekhir

resources/etc/OpenBoard.config

@@ -130,7 +130,7 @@ UsePDFMerger=true
 
 [Podcast]
 AudioRecordingDevice=Default
-FramesPerSecond=10
+FramesPerSecond=100
 PublishToYouTube=false
 QuickTimeQuality=High
 VideoSize=Medium

src/core/UBSettings.cpp

@@ -461,7 +461,7 @@ void UBSettings::init()
     exportBackgroundGrid = new UBSetting(this, "PDF", "ExportBackgroundGrid", false);
     exportBackgroundColor = new UBSetting(this, "PDF", "ExportBackgroundColor", false);
 
-    podcastFramesPerSecond = new UBSetting(this, "Podcast", "FramesPerSecond", 10);
+    podcastFramesPerSecond = new UBSetting(this, "Podcast", "FramesPerSecond", 100);
     podcastVideoSize = new UBSetting(this, "Podcast", "VideoSize", "Medium");
     podcastAudioRecordingDevice = new UBSetting(this, "Podcast", "AudioRecordingDevice", "Default");
 

src/podcast/UBPodcastController.cpp

@@ -82,7 +82,7 @@ UBPodcastController::UBPodcastController(QObject* pParent)
     , mVideoEncoder(0)
     , mInitialized(false)
     , mEmptyChapter(true)
-    , mVideoFramesPerSecondAtStart(10)
+    , mVideoFramesPerSecondAtStart(100)
     , mVideoFrameSizeAtStart(1024, 768)
     , mVideoBitsPerSecondAtStart(1700000)
     , mSourceWidget(0)

src/podcast/UBPodcastPreferencesDialog.cpp

@@ -334,7 +334,7 @@ void UBPodcastPreferencesDialog::resetDefaultSettings()
     setDefaultAudioDevice();
     mTabWidget->setCurrentIndex(mPodcastProfileNames.indexOf("Medium"));
     mBitRateSpinBox->setValue(1700000);
-    mFrameRateSpinBox->setValue(10);
+    mFrameRateSpinBox->setValue(100);
     mPublishToIntranet->setChecked(false);
     mPublishToYoutube->setChecked(false);
 }