Add a simple recorder app for capturing audio or audio/video streams

Change-Id: Iad6e33f6ec77aa28121b8b0d1b9c0ae32616c30e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 146 insertions, 0 deletions

diff --git a/examples/multimedia/video/recorder/SettingsEncoder.qml b/examples/multimedia/video/recorder/SettingsEncoder.qml
new file mode 100644
index 000000000..c129eaed0
--- /dev/null
+++ b/examples/multimedia/video/recorder/SettingsEncoder.qml
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+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
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+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
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+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick
+import QtQuick.Layouts
+import QtQuick.Controls
+import QtMultimedia
+
+Column {
+    id: root
+    spacing: Style.intraSpacing
+    Component.onCompleted: root.populateModels()
+
+    required property MediaRecorder recorder
+
+    function populateModels() {
+        audioCodecModel.populate()
+        videoCodecModel.populate()
+        fileFormatModel.populate()
+    }
+
+    Connections {
+        target: recorder
+        function onMediaFormatChanged() { root.populateModels() }
+    }
+
+    Text { text: "Encoder settings" }
+
+    StyleParameter {
+        label: "Quality"
+        model: ListModel {
+            ListElement { text: "very low"; value: MediaRecorder.VeryLowQuality }
+            ListElement { text: "low"; value: MediaRecorder.LowQuality }
+            ListElement { text: "normal"; value: MediaRecorder.NormalQuality }
+            ListElement { text: "high"; value: MediaRecorder.HighQuality }
+            ListElement { text: "very high"; value: MediaRecorder.VeryHighQuality }
+        }
+        onActivated: (v) => { recorder.quality = v }
+    }
+
+    StyleParameter {
+        id: audioCodecSelect
+        label: "Audio codec"
+        model: audioCodecModel
+        onActivated: (v) => { recorder.mediaFormat.audioCodec = v }
+
+        ListModel {
+            id: audioCodecModel
+            function populate() {
+                audioCodecModel.clear()
+                audioCodecModel.append({"text": "Unspecifed", "value": MediaFormat.AudioCodec.Unspecified})
+                var cs = recorder.mediaFormat.supportedAudioCodecs(MediaFormat.Encode)
+                for (var c of cs)
+                    audioCodecModel.append({"text": recorder.mediaFormat.audioCodecName(c), "value": c})
+                audioCodecSelect.currentIndex = cs.indexOf(recorder.mediaFormat.audioCodec) + 1
+            }
+        }
+    }
+
+    function buildModel() {}
+
+    StyleParameter {
+        id: videoCodecSelect
+        label: "Video codec"
+        model: videoCodecModel
+        onActivated: (v) => { recorder.mediaFormat.videoCodec = v }
+
+        ListModel {
+            id: videoCodecModel
+            function populate() {
+                videoCodecModel.clear()
+                videoCodecModel.append({"text": "Unspecifed", "value": MediaFormat.VideoCodec.Unspecified})
+                var cs = recorder.mediaFormat.supportedVideoCodecs(MediaFormat.Encode)
+                for (var c of cs)
+                    videoCodecModel.append({"text": recorder.mediaFormat.videoCodecName(c), "value": c})
+                videoCodecSelect.currentIndex = cs.indexOf(recorder.mediaFormat.videoCodec) + 1
+            }
+        }
+    }
+
+    StyleParameter {
+        id: fileFormatSelect
+        label: "File format"
+        model: fileFormatModel
+        onActivated: (v) => { recorder.mediaFormat.fileFormat = v }
+
+        ListModel {
+            id: fileFormatModel
+            function populate() {
+                fileFormatModel.clear()
+                fileFormatModel.append({"text": "Unspecifed", "value": MediaFormat.AudioCodec.Unspecified})
+                var cs = recorder.mediaFormat.supportedFileFormats(MediaFormat.Encode)
+                for (var c of cs)
+                    fileFormatModel.append({"text": recorder.mediaFormat.fileFormatName(c), "value": c})
+                fileFormatSelect.currentIndex = cs.indexOf(recorder.mediaFormat.fileFormat) + 1
+            }
+        }
+    }
+}