From f4b22b839a6de472030f29c68c01b5adb3dad77f Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Sun, 13 Oct 2019 15:25:05 +0200
Subject: [PATCH] [AFV] Ref T730, utility functions to log QAudioFromat

---
 src/blacksound/audioutilities.cpp | 45 ++++++++++++++++++++++++++++++-
 src/blacksound/audioutilities.h   |  9 ++++---
 2 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/src/blacksound/audioutilities.cpp b/src/blacksound/audioutilities.cpp
index ec42a575f..e503fed09 100644
--- a/src/blacksound/audioutilities.cpp
+++ b/src/blacksound/audioutilities.cpp
@@ -7,6 +7,7 @@
  */
 
 #include "audioutilities.h"
+#include <QStringBuilder>
 #include <QAudioInput>
 #include <QAudioOutput>
 
@@ -30,7 +31,7 @@ namespace BlackSound
 
     QVector<qint16> convertBytesTo16BitPCM(const QByteArray input)
     {
-        int inputSamples = input.size() / 2; // 16 bit input, so 2 bytes per sample
+        const int inputSamples = input.size() / 2; // 16 bit input, so 2 bytes per sample
         QVector<qint16> output;
         output.fill(0, inputSamples);
         for (int n = 0; n < inputSamples; n++)
@@ -184,4 +185,46 @@ namespace BlackSound
         return usedDevice;
     }
 
+    QString toQString(const QAudioFormat &format)
+    {
+        return QStringLiteral("Sample rate: %1 channels: %2 sample size: %3 codec: %4 order: %5 type: %6 bytes/frame: %7")
+               .arg(format.sampleRate())
+               .arg(format.channelCount())
+               .arg(format.sampleSize())
+               .arg(format.codec())
+               .arg(toQString(format.byteOrder()))
+               .arg(toQString(format.sampleType()))
+               .arg(format.bytesPerFrame());
+    }
+
+    const QString &toQString(QAudioFormat::Endian s)
+    {
+        static const QString l("little");
+        static const QString b("big");
+        switch (s)
+        {
+        case QAudioFormat::BigEndian: return b;
+        case QAudioFormat::LittleEndian: return l;
+        default: break;
+        }
+        static const QString u("??");
+        return u;
+    }
+
+    const QString &toQString(QAudioFormat::SampleType e)
+    {
+        static const QString s("signed int");
+        static const QString u("unsigned int");
+        static const QString f("float");
+        switch (e)
+        {
+        case QAudioFormat::SignedInt:   return s;
+        case QAudioFormat::UnSignedInt: return u;
+        case QAudioFormat::Float:       return f;
+        case QAudioFormat::Unknown:
+        default: break;
+        }
+        static const QString unknown("unknown");
+        return unknown;
+    }
 } // ns
diff --git a/src/blacksound/audioutilities.h b/src/blacksound/audioutilities.h
index e0dc4c36d..c21fa6b81 100644
--- a/src/blacksound/audioutilities.h
+++ b/src/blacksound/audioutilities.h
@@ -21,16 +21,19 @@
 namespace BlackSound
 {
     //! Conversion functions @{
-    BLACKSOUND_EXPORT QVector<float> convertBytesTo32BitFloatPCM(const QByteArray input);
+    BLACKSOUND_EXPORT QVector<float>  convertBytesTo32BitFloatPCM(const QByteArray input);
     BLACKSOUND_EXPORT QVector<qint16> convertBytesTo16BitPCM(const QByteArray input);
     BLACKSOUND_EXPORT QVector<qint16> convertFloatBytesTo16BitPCM(const QByteArray input);
-    BLACKSOUND_EXPORT QVector<float> convertFromMonoToStereo(const QVector<float> &mono);
+    BLACKSOUND_EXPORT QVector<float>  convertFromMonoToStereo(const QVector<float> &mono);
     BLACKSOUND_EXPORT QVector<qint16> convertFromStereoToMono(const QVector<qint16> &stereo);
-    BLACKSOUND_EXPORT QVector<float> convertFromShortToFloat(const QVector<qint16> &input);
+    BLACKSOUND_EXPORT QVector<float>  convertFromShortToFloat(const QVector<qint16> &input);
 
     BLACKSOUND_EXPORT QAudioDeviceInfo getLowestLatencyDevice(const BlackMisc::Audio::CAudioDeviceInfo &device, QAudioFormat &format);
     BLACKSOUND_EXPORT QAudioDeviceInfo getHighestCompatibleOutputDevice(const BlackMisc::Audio::CAudioDeviceInfo &device, QAudioFormat &format);
 
+    BLACKSOUND_EXPORT QString toQString(const QAudioFormat &format);
+    BLACKSOUND_EXPORT const QString &toQString(QAudioFormat::Endian e);
+    BLACKSOUND_EXPORT const QString &toQString(QAudioFormat::SampleType s);
     //! @}
 } // ns