Rework to add and use a binding for radio controldab_3.99.1dab/3.99.13.99.1

A radio binding has been added in the new binding directory, and the
application has been reworked to use it.  The binding uses a modified
version of the rtl_fm code used in the qtmultimedia radio plugin that
was previously used, and some new code has been added to output to
PulseAudio using the asynchronous API to ensure compatibility with
stream corking.  The rtl_fm code has been enhanced to add seeking
support, and the application has been tweaked to use it.

Bug-AGL: SPEC-581

Change-Id: I011e98374accc2cad2b36c93ac800948ee51f2aa
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

1 files changed, 48 insertions, 17 deletions

diff --git a/app/Radio.qml b/app/Radio.qml
index 8bcd56e..f812af1 100644
--- a/app/Radio.qml
+++ b/app/Radio.qml
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2016 The Qt Company Ltd.
+ * Copyright (C) 2017 Konsulko Group
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,29 +18,23 @@
 import QtQuick 2.6
 import QtQuick.Layouts 1.1
 import QtQuick.Controls 2.0
-import QtMultimedia 5.5
 import AGL.Demo.Controls 1.0
+import 'api' as API
 
 ApplicationWindow {
     id: root
 
-    Radio {
+    API.Binding {
         id: radio
+
         property string title
+
         onBandChanged: frequency = minimumFrequency
         onStationFound: title = stationId
         onFrequencyChanged: {
             title = ''
             slider.value = frequency
         }
-
-        function freq2str(freq) {
-            if (freq > 5000000) {
-                return '%1 MHz'.arg((freq / 1000000).toFixed(1))
-            } else {
-                return '%1 kHz'.arg((freq / 1000).toFixed(0))
-            }
-        }
     }
 
     ColumnLayout {
@@ -82,7 +77,7 @@ ApplicationWindow {
 //                                offImage: './images/FM_Icons_FM.svg'
 //                                onImage: './images/FM_Icons_AM.svg'
 //                                onCheckedChanged: {
-//                                    radio.band = checked ? Radio.AM : Radio.FM
+//                                    radio.band = checked ? radio.amBand : radio.fmBand
 //                                    radio.frequency = radio.minimumFrequency
 //                                }
 //                            }
@@ -129,7 +124,11 @@ ApplicationWindow {
                     }
                     RowLayout {
                         Layout.fillHeight: true
-                        Item { Layout.fillWidth: true }
+
+                        Label {
+                            text: 'TUNE'
+                        }
+
                         ImageButton {
                             offImage: './images/AGL_MediaPlayer_BackArrow.svg'
                             Timer {
@@ -140,13 +139,27 @@ ApplicationWindow {
                                 onTriggered: radio.tuneDown()
                             }
                         }
+
+                        ImageButton {
+                            offImage: './images/AGL_MediaPlayer_ForwardArrow.svg'
+                            Timer {
+                                running: parent.pressed
+                                triggeredOnStart: true
+                                interval: 100
+                                repeat: true
+                                onTriggered: radio.tuneUp()
+                            }
+                        }
+
+                        Item { Layout.fillWidth: true }
+
                         ImageButton {
                             id: play
                             offImage: './images/AGL_MediaPlayer_Player_Play.svg'
                             onClicked: radio.start()
                             states: [
                                 State {
-                                    when: radio.state === Radio.ActiveState
+                                    when: radio.state === radio.activeState
                                     PropertyChanges {
                                         target: play
                                         offImage: './images/AGL_MediaPlayer_Player_Pause.svg'
@@ -155,6 +168,25 @@ ApplicationWindow {
                                 }
                             ]
                         }
+
+                        Item { Layout.fillWidth: true }
+
+                        Label {
+                            //Layout.fillWidth: true
+                            text: 'SCAN'
+                        }
+
+                        ImageButton {
+                            offImage: './images/AGL_MediaPlayer_BackArrow.svg'
+                            Timer {
+                                running: parent.pressed
+                                triggeredOnStart: true
+                                interval: 100
+                                repeat: true
+                                onTriggered: radio.scanDown()
+                            }
+                        }
+
                         ImageButton {
                             offImage: './images/AGL_MediaPlayer_ForwardArrow.svg'
                             Timer {
@@ -162,11 +194,10 @@ ApplicationWindow {
                                 triggeredOnStart: true
                                 interval: 100
                                 repeat: true
-                                onTriggered: radio.tuneUp()
+                                onTriggered: radio.scanUp()
                             }
                         }
 
-                        Item { Layout.fillWidth: true }
                     }
                 }
             }
@@ -214,9 +245,9 @@ ApplicationWindow {
                         Image {
                             source: {
                                 switch (model.modelData.band) {
-                                case Radio.FM:
+                                case radio.fmBand:
                                     return './images/FM_Icons_FM.svg'
-                                case Radio.AM:
+                                case radio.amBand:
                                     return './images/FM_Icons_AM.svg'
                                 }
                                 return null