androidmediarecorder.cpp

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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "androidmediarecorder_p.h"
#include "androidcamera_p.h"
#include "androidsurfacetexture_p.h"
#include "androidsurfaceview_p.h"
#include "qandroidglobal_p.h"
#include "qandroidmultimediautils_p.h"
 
#include <qmap.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qlogging.h>
#include <QtCore/qurl.h>
 
QT_BEGIN_NAMESPACE
 
Q_STATIC_LOGGING_CATEGORY(lcMediaRecorder, "qt.multimedia.mediarecorder.android");
 
Q_DECLARE_JNI_CLASS(QtAudioDeviceManager,
                    "org/qtproject/qt/android/multimedia/QtAudioDeviceManager");
Q_DECLARE_JNI_CLASS(AudioDeviceInfo, "android/media/AudioDeviceInfo");
 
typedef QMap<QString, QJniObject> CamcorderProfiles;
Q_GLOBAL_STATIC(CamcorderProfiles, g_camcorderProfiles)
 
static QString profileKey()
{
    return QStringLiteral("%1-%2");
}
 
bool AndroidCamcorderProfile::hasProfile(jint cameraId, Quality quality)
{
    if (g_camcorderProfiles->contains(profileKey().arg(cameraId).arg(quality)))
        return true;
 
    return QJniObject::callStaticMethod<jboolean>("android/media/CamcorderProfile",
                                                         "hasProfile",
                                                         "(II)Z",
                                                         cameraId,
                                                         quality);
}
 
AndroidCamcorderProfile AndroidCamcorderProfile::get(jint cameraId, Quality quality)
{
    const QString key = profileKey().arg(cameraId).arg(quality);
    QMap<QString, QJniObject>::const_iterator it = g_camcorderProfiles->constFind(key);
 
    if (it != g_camcorderProfiles->constEnd())
        return AndroidCamcorderProfile(*it);
 
    QJniObject camProfile = QJniObject::callStaticObjectMethod("android/media/CamcorderProfile",
                                                         "get",
                                                         "(II)Landroid/media/CamcorderProfile;",
                                                         cameraId,
                                                         quality);
 
    return AndroidCamcorderProfile((*g_camcorderProfiles)[key] = camProfile);
}
 
int AndroidCamcorderProfile::getValue(AndroidCamcorderProfile::Field field) const
{
    switch (field) {
    case audioBitRate:
        return m_camcorderProfile.getField<jint>("audioBitRate");
    case audioChannels:
        return m_camcorderProfile.getField<jint>("audioChannels");
    case audioCodec:
        return m_camcorderProfile.getField<jint>("audioCodec");
    case audioSampleRate:
        return m_camcorderProfile.getField<jint>("audioSampleRate");
    case duration:
        return m_camcorderProfile.getField<jint>("duration");
    case fileFormat:
        return m_camcorderProfile.getField<jint>("fileFormat");
    case quality:
        return m_camcorderProfile.getField<jint>("quality");
    case videoBitRate:
        return m_camcorderProfile.getField<jint>("videoBitRate");
    case videoCodec:
        return m_camcorderProfile.getField<jint>("videoCodec");
    case videoFrameHeight:
        return m_camcorderProfile.getField<jint>("videoFrameHeight");
    case videoFrameRate:
        return m_camcorderProfile.getField<jint>("videoFrameRate");
    case videoFrameWidth:
        return m_camcorderProfile.getField<jint>("videoFrameWidth");
    }
 
    return 0;
}
 
AndroidCamcorderProfile::AndroidCamcorderProfile(const QJniObject &camcorderProfile)
{
    m_camcorderProfile = camcorderProfile;
}
 
static const char QtMediaRecorderListenerClassName[] =
        "org/qtproject/qt/android/multimedia/QtMediaRecorderListener";
typedef QMap<jlong, AndroidMediaRecorder*> MediaRecorderMap;
Q_GLOBAL_STATIC(MediaRecorderMap, mediaRecorders)
 
static void notifyError(JNIEnv* , jobject, jlong id, jint what, jint extra)
{
    AndroidMediaRecorder *obj = mediaRecorders->value(id, 0);
    if (obj)
        emit obj->error(what, extra);
}
 
static void notifyInfo(JNIEnv* , jobject, jlong id, jint what, jint extra)
{
    AndroidMediaRecorder *obj = mediaRecorders->value(id, 0);
    if (obj)
        emit obj->info(what, extra);
}
 
AndroidMediaRecorder::AndroidMediaRecorder()
    : QObject()
    , m_id(reinterpret_cast<jlong>(this))
{
    m_mediaRecorder = QJniObject("android/media/MediaRecorder");
    if (m_mediaRecorder.isValid()) {
        QJniObject listener(QtMediaRecorderListenerClassName, "(J)V", m_id);
        m_mediaRecorder.callMethod<void>("setOnErrorListener",
                                         "(Landroid/media/MediaRecorder$OnErrorListener;)V",
                                         listener.object());
        m_mediaRecorder.callMethod<void>("setOnInfoListener",
                                         "(Landroid/media/MediaRecorder$OnInfoListener;)V",
                                         listener.object());
        mediaRecorders->insert(m_id, this);
    }
}
 
AndroidMediaRecorder::~AndroidMediaRecorder()
{
    if (m_isVideoSourceSet || m_isAudioSourceSet)
        reset();
 
    release();
    mediaRecorders->remove(m_id);
}
 
void AndroidMediaRecorder::release()
{
    m_mediaRecorder.callMethod<void>("release");
}
 
bool AndroidMediaRecorder::prepare()
{
    QJniEnvironment env;
    auto methodId = env->GetMethodID(m_mediaRecorder.objectClass(), "prepare", "()V");
    env->CallVoidMethod(m_mediaRecorder.object(), methodId);
 
    if (env.checkAndClearExceptions())
        return false;
    return true;
}
 
void AndroidMediaRecorder::reset()
{
    m_mediaRecorder.callMethod<void>("reset");
    m_isAudioSourceSet = false; // Now setAudioSource can be used again.
    m_isVideoSourceSet = false;
}
 
bool AndroidMediaRecorder::start()
{
    QJniEnvironment env;
    auto methodId = env->GetMethodID(m_mediaRecorder.objectClass(), "start", "()V");
    env->CallVoidMethod(m_mediaRecorder.object(), methodId);
 
    if (env.checkAndClearExceptions())
        return false;
    return true;
}
 
void AndroidMediaRecorder::stop()
{
    m_mediaRecorder.callMethod<void>("stop");
}
 
void AndroidMediaRecorder::setAudioChannels(int numChannels)
{
    m_mediaRecorder.callMethod<void>("setAudioChannels", "(I)V", numChannels);
}
 
void AndroidMediaRecorder::setAudioEncoder(AudioEncoder encoder)
{
    QJniEnvironment env;
    m_mediaRecorder.callMethod<void>("setAudioEncoder", "(I)V", int(encoder));
}
 
void AndroidMediaRecorder::setAudioEncodingBitRate(int bitRate)
{
    m_mediaRecorder.callMethod<void>("setAudioEncodingBitRate", "(I)V", bitRate);
}
 
void AndroidMediaRecorder::setAudioSamplingRate(int samplingRate)
{
    m_mediaRecorder.callMethod<void>("setAudioSamplingRate", "(I)V", samplingRate);
}
 
void AndroidMediaRecorder::setAudioSource(AudioSource source)
{
    if (!m_isAudioSourceSet) {
        QJniEnvironment env;
        auto methodId = env->GetMethodID(m_mediaRecorder.objectClass(), "setAudioSource", "(I)V");
        env->CallVoidMethod(m_mediaRecorder.object(), methodId, source);
        if (!env.checkAndClearExceptions())
            m_isAudioSourceSet = true;
    } else {
        qCWarning(lcMediaRecorder) << "Audio source already set. Not setting a new source.";
    }
}
 
bool AndroidMediaRecorder::isAudioSourceSet() const
{
    return m_isAudioSourceSet;
}
 
bool AndroidMediaRecorder::setAudioInput(const QByteArray &id)
{
    using namespace QtJniTypes;
 
    AudioDeviceInfo deviceInfo = QtAudioDeviceManager::callStaticMethod<AudioDeviceInfo>(
            "getAudioInputDeviceInfo", id.toInt());
 
    if (!m_mediaRecorder.callMethod<jboolean>("setPreferredDevice", deviceInfo))
        return false;
 
    const bool ret =
            QtAudioDeviceManager::callStaticMethod<jboolean>("prepareAudioInput", id.toInt());
 
    if (!ret)
        qCWarning(lcMediaRecorder) << "No default input device was set.";
 
    return ret;
}
 
void AndroidMediaRecorder::setCamera(AndroidCamera *camera)
{
    QJniObject cam = camera->getCameraObject();
    m_mediaRecorder.callMethod<void>("setCamera", "(Landroid/hardware/Camera;)V", cam.object());
}
 
void AndroidMediaRecorder::setVideoEncoder(VideoEncoder encoder)
{
    m_mediaRecorder.callMethod<void>("setVideoEncoder", "(I)V", int(encoder));
}
 
void AndroidMediaRecorder::setVideoEncodingBitRate(int bitRate)
{
    m_mediaRecorder.callMethod<void>("setVideoEncodingBitRate", "(I)V", bitRate);
}
 
void AndroidMediaRecorder::setVideoFrameRate(int rate)
{
    m_mediaRecorder.callMethod<void>("setVideoFrameRate", "(I)V", rate);
}
 
void AndroidMediaRecorder::setVideoSize(const QSize &size)
{
    m_mediaRecorder.callMethod<void>("setVideoSize", "(II)V", size.width(), size.height());
}
 
void AndroidMediaRecorder::setVideoSource(VideoSource source)
{
    QJniEnvironment env;
 
    auto methodId = env->GetMethodID(m_mediaRecorder.objectClass(), "setVideoSource", "(I)V");
    env->CallVoidMethod(m_mediaRecorder.object(), methodId, source);
 
    if (!env.checkAndClearExceptions())
        m_isVideoSourceSet = true;
}
 
void AndroidMediaRecorder::setOrientationHint(int degrees)
{
    m_mediaRecorder.callMethod<void>("setOrientationHint", "(I)V", degrees);
}
 
void AndroidMediaRecorder::setOutputFormat(OutputFormat format)
{
    QJniEnvironment env;
    auto methodId = env->GetMethodID(m_mediaRecorder.objectClass(), "setOutputFormat", "(I)V");
    env->CallVoidMethod(m_mediaRecorder.object(), methodId, format);
    // setAudioSource cannot be set after outputFormat is set.
    if (!env.checkAndClearExceptions())
        m_isAudioSourceSet = true;
}
 
void AndroidMediaRecorder::setOutputFile(const QString &path)
{
    if (QUrl(path).scheme() == QLatin1String("content")) {
        const QJniObject fileDescriptor = QJniObject::callStaticObjectMethod(
                    "org/qtproject/qt/android/QtNative",
                    "openFdObjectForContentUrl",
                    "(Landroid/content/Context;Ljava/lang/String;Ljava/lang/String;)Ljava/io/FileDescriptor;",
                    QNativeInterface::QAndroidApplication::context().object(),
                    QJniObject::fromString(path).object(),
                    QJniObject::fromString(QLatin1String("rw")).object());
 
        m_mediaRecorder.callMethod<void>("setOutputFile",
                                         "(Ljava/io/FileDescriptor;)V",
                                         fileDescriptor.object());
    } else {
        m_mediaRecorder.callMethod<void>("setOutputFile",
                                         "(Ljava/lang/String;)V",
                                         QJniObject::fromString(path).object());
    }
}
 
void AndroidMediaRecorder::setSurfaceTexture(AndroidSurfaceTexture *texture)
{
    m_mediaRecorder.callMethod<void>("setPreviewDisplay",
                                     "(Landroid/view/Surface;)V",
                                     texture->surface());
}
 
void AndroidMediaRecorder::setSurfaceHolder(AndroidSurfaceHolder *holder)
{
    QJniObject surfaceHolder(holder->surfaceHolder());
    QJniObject surface = surfaceHolder.callObjectMethod("getSurface",
                                                               "()Landroid/view/Surface;");
    if (!surface.isValid())
        return;
 
    m_mediaRecorder.callMethod<void>("setPreviewDisplay",
                                     "(Landroid/view/Surface;)V",
                                     surface.object());
}
 
bool AndroidMediaRecorder::registerNativeMethods()
{
    static const JNINativeMethod methods[] = {
        {"notifyError", "(JII)V", (void *)notifyError},
        {"notifyInfo", "(JII)V", (void *)notifyInfo}
    };
 
    const int size = std::size(methods);
    return QJniEnvironment().registerNativeMethods(QtMediaRecorderListenerClassName, methods, size);
}
 
QT_END_NAMESPACE
 
#include "moc_androidmediarecorder_p.cpp"