Qt6 multimedia not found I've installed libasound2, libasound2-dev, libasound2-data, gstreamer1. g. QtMultimediaWidg Aug 18, 2018 · 文章浏览阅读8. 1 but I get the following errors: could not load multimedia backend "" QtMultimedia is not currently supported on this platform or compiler. 5. dll', dependency of 'C:\hostedtoolcache\windows\Python\3. cmake:80 (target_link_libraries): Target "Multimedia" links to: EGL::EGL but the target was not found. 15. It appears it isn't a Qt or Python problem but some link is broken in Arch packages. 4, the online version, on Ubuntu 22. Jul 11, 2024 · 大部分资料整理自Qt5. 12. QMediaPlayer. 11. there is not QtMultimedia folder in QT_DIR/qml. Building Qt Multimedia and FFmpeg from source are described in the Qt Documentation: Building FFmpeg from source. 1/ 构建的架构非常难以维护和开发模块。在 Qt6 中，我们选择显着简化这一过程并移除插件基础设施。现在在编译时选择后端并编译到 Qt Multimedia 的共享库中。现在只有一个后端 API 涵盖了所有多媒体，消除了我们在 Qt 5 中人为拆分成多个后端的问题。 Apr 11, 2022 · QT += multimedia QT += multimediawidgets And I can easily use stuff like QVideoWidget or QMediaPlayer and it compiles. 由于你提到项目使用的是CMakeLists. Qt5. 4; in 6. May 14, 2024 · @SGaist I couldn't find anything that was wrong or why it was not working so decided to spend my time/energy in getting a clean install of Ubuntu 24. 04. Jan 21, 2013 · Most probably it was qt6-multimedia-6. 4. 2 from source on Ubuntu 22. " . New features in Qt 6. Feb 22, 2021 · Download Qt5 and remove Qt6 so you don't have that kind of problem. 7版本中想要使用QFileDialog,查询Qt帮助文档内容如下. Oldest to Newest; Aug 28, 2015 · If yours is a qmake-based project, as default projects are in Qt Creator, you have to add following line to your . Oct 29, 2021 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Existing code that uses Qt Multimedia from Qt 5 can be ported with limited effort. . I installed qtbase, qtdeclerative, qtmultimedia, etc. qt6打开摄像头（未使用QCameraInfo和QCameraViewfinder） sdfsdghsd: 没了，应该是删了，我在multimedia文件里翻了没找到 Nov 16, 2023 · :: There are 2 providers available for qt6-multimedia-backend: :: Repository extra 1) qt6-multimedia-ffmpeg 2) qt6-multimedia-gstreamer Enter a number (default=1): Today, I use KDE Plasma and I am happy to stay with 5. Aug 1, 2023 · 文章浏览阅读1. Apr 1, 2024 · 添加的Qt Multimedia模块要和你工程使用的构建套件是同一个版本的，否则 添加组件 后还是会提示未知的模块（比如我开始使用的6. Allows capturing of audio and video content. 0 it works. 在该编译器下方的“Qt Versions”中，选择你已经安装的Qt版本，并确保该版本中包含Multimedia模块。 4. Failed to initialize QMediaPlayer "Not available" Failed to create QVideoSink "Not available" Jan 26, 2023 · I have ported a solution using Qt Multimedia from 5. Oct 8, 2021 · That qt commit looks like a fix for build issue. Jan 3, 2024 · 我之前写过打来摄像头的一个qt程序，然后我准备运行的时候发现了这个错误： defaultServiceProvider::requestService(): no service found for -"org. A minimal media player implemented in C++ looks like this: QMediaPlayer Jan 26, 2023 · I have ported a solution using Qt Multimedia from 5. At the time of writing, these backends include: drm; opencl; qsv; vdpau Qt Multimedia is an add-on module that provides a rich set of QML types and C++ classes to handle multimedia content. 0, but the result is the same. txt:48: error: Target "XXXX" links to: Qt6::Multimedia but the target was not found. 确认自己使用用的版本是不是QT6的，如果是，那么不用找了，QT6已经移除了这个模块，需要降qt版本。记录主要是找了很久，网上没看到关于第一点的描述，浪费很久的时间。 Sep 19, 2024 · This topic has been deleted. Follow asked Jan 19, 2014 at 9:40. multimedia' not found for product 'qt'. spec command. 9\x64\Lib\site-packages\PyQt6\Qt6\plugins\multimedia\ffmpegmediaplugin. Layouts 1. 0 的完整错误消息： No QtMultimedia backends found. 3 for Raspberry Pi 3 B+. QMediaDevices. The Qt Multimedia module in Qt 6 replaces the Qt Multimedia module from Qt 5. I don't have previous package in cache to check more precisely. Apr 17, 2016 · 环境VS + Qt5. Mar 12, 2024 · 本文详细介绍了如何解决 CMake 在 Qt6 安装中找不到所需的依赖项问题。它提供了步骤指南，包括设置 Qt6 环境变量（例如 Qt6_DIR、Qt6CoreTools_DIR、Qt6Widgets_DIR），将 Qt6 安装前缀添加到 CMAKE_PREFIX_PATH 环境变量，以及更新 CMakeLists. Running the Example. Jul 6, 2024 · QT += multimedia 更新或重新安装Qt：如果以上步骤都没有解决问题，尝试更新Qt到最新版本或重新安装Qt。有时候，重新安装可以解决一些配置问题。 根据你提供的图1和图2内容，看起来你正在使用MinGW编译器和Qt Creator进行开发。 May 12, 2025 · `Qt6multimediawidgets. qt. But I'm pretty sure what the issue is and how you could fix it. Sep 22, 2019 · Everything seems to work fine except when I try to build the declarative-camera example or other multimedia examples I get an error saying module "QtMultimedia" is not installed. Qt6安装 Multimedia 模块 Aug 29, 2023 · Dear all, I am currently trying to build Qt 6. 2. 2 with Qt Multimedia library. Failed to create QVideoSink "Not available" Failed to initialize QMediaPlayer "Not available" When I roll back to 6. txt中添加对Qt6 Multimedia模块的支持。这通常通过find_package(Qt6 COMPONENTS Widgets Multimedia)命令完成。确保你的CMakeLists. Oct 18, 2024 · Subtitle support added to Qt6 Multimedia and we can show a subtitle on MediaPlayer very simple. The console that comes wit 我正在尝试通过 CMake 构建项目，并将环境变量 . x until 6. In pro file, added: QT += multimedia In Widget cpp file, added: #include <QMediaPlayer> And then, added below code inside Widget::Widget(QWidget *parent){ } QMediaPlayer* player = new QMediaPlayer; The project could be built. Then the empty white application window pops up. 1 beta for Windows XP and used "explore Qt c++ examples" > Multimedia > Audio Devices to create a test project that built and ran fine. QMediaFormat. Header: #include <QVideoWidget> CMake: find_package(Qt6 REQUIRED COMPONENTS MultimediaWidgets) target_link_libraries(mytarget PRIVATE Qt6::MultimediaWidgets) qmake: QT += multimediawidgets Qt Multimedia is an add-on module that provides a rich set of QML types and C++ classes to handle multimedia content. Dialogs 1. exe进行模块安装，具体步骤为：找到并运行MaintenanceTool. /qt-everywhere-src-6. * A find_package call is missing for an IMPORTED target. I checked and could not find a Qt6Multimedia nor a Qt6SerialPort folder under C:\Qt\6. The installation was apparently smooth; I used the default options. 3版本构建就可以了）。 首先， QT多媒体模块 （QtMultimedia）是实现 多媒体 播放的核心组件。 它提供了对各种媒体类型的支持，包括音频、视频以及网络流媒体。 该 模块 包含几个关键类，如QMediaPlayer、QMediaPlaylist和QVideoWidget等，它们协同 Sep 7, 2022 · CMake Error at qtbase/cmake/QtTargetHelpers. user1056226 user1056226. 6 import QtQuick. Qt is a free and open-source widget toolkit for creating graphical user interfaces as well as cross-platform applications that run on various software and hardware platforms. Provides meta-data for media files. Oct 26, 2023 · My organisation is using Qt 6. cmake的目录。但是，构建似乎无法在Qt6安装中找到它需要的任何其他依赖项&我不确定下一步需要做什么。我看到了对其他可能的环境变量的引用，比如"Qt6CoreTools_DIR“，我想知道我是否真的需要独立地设置这些变量，或者是否有 I found that when I tried to build command line (i. However, when attempting to create a desktop project, I recei Jun 28, 2023 · Hi all I found this problem on Ubuntu 22. 6 but you are using 5. C:\QtSDK\Desktop\Qt\4. Reinstalling the program may fix this problem. Qt introduced the ffmpeg backend in 6. 1 from source. It's compiling fine, but none of the audio backends are enabled. libsymbolsresolver: Couldn't load Open Nov 8, 2024 · No QtMultimedia backends found. Add a Apr 4, 2018 · 本猪猪用的是2021年官网上下载的最新版本的QT，应该是版本6. exe -S D:/github/FluentUI-main -B D:/github/build-FluentUI-main-Desktop_Qt_6_5_0_MSVC2019_64bit Feb 25, 2021 · I'm using PySide6 on Windows 7, installed it with pip. pro文件，你需要在CMakeLists. 1 then and mark the thread as solved if this fixes my issues :) @SGaist Actually further testing shows that it is not the backend of Qt Multimedia that causes the issue, although I have some hope that ffmpeg could resolve it. If QAudioBufferOutput is specified and the media source contains an audio stream, the media player, it will emit the signal QAudioBufferOutput::audioBufferReceived with audio buffers containing decoded audio data. Add a Apr 11, 2022 · 因此，我已经安装了QtMultimedia，在图片中，您可以看到所有模块的安装。 然后，我将模块添加到项目的qmake中QT += multimediaQT += multimediawidgets而且我可以很容易地使用像QVideoWidget或QMediaPlayer这样的东西，并且它会编译。但是包括QAbstractVideoSurface不起作用！#include <QAbstractV apt install qt6-multimedia-dev. See this https: Qt introduced the ffmpeg backend in 6. To run the example from Qt Creator, open the Welcome mode and select the example from Examples. 0 on Ubuntu 22. Jul 7, 2024 · 1. qt-project. 10 using the following command, but the packages were not found: sudo apt-get install libgstreamer0. I build my Qt6 app with cmake, on ubuntu 22. multimedia. Failed to initialize QMediaCaptureSession "Not available" Failed to initialize QMediaRecorder "Not available" Mar 18, 2017 · Could you please try to run some media player that has already had in Qt package. x is released. Also adding QT += multimedia and including QAudioOutput in another project worked. but it set Qt6_FOUND to FALSE so package “Qt6” is considered to be Oct 21, 2023 · This morning, and now, just before replying. 8\multimedia\video\qmlvideo Qt5. ffmpeg. 0 查看了很多资料发现了几个可能的错误原因，总结如下： 1 未添加Pro文件的：multimedia 解决方法： 在Pro文件里加上QT+=multimedia 添加了还没有的小伙伴记得保存构建一下，就有了 即在构建里面点击qmake一下，或者那个那个小锤子 2 软件不 Jul 6, 2021 · Both packages are found correctly when using Qt5. 0 and beyond points out, so if you want to reproduce sounds you will have to use a third party library. When I used the Qt6 explicit qmake, the issue was resolved: Apr 1, 2024 · After upgrading to Windows 11, the audio is not playing and this warning appears: No QtMultimedia backends found. 原因是Qt6 再安装时候没有安装 Multimedia 模块. 9k次，点赞9次，收藏38次。本文主要介绍了在Linux环境下搭建Qt时遇到的模块缺失问题，包括媒体模块和serialport模块的缺失，提供了通过sudo apt-get install安装相应库的解决方法，确保Qt的完整运行。 Jan 9, 2022 · 1、问题描述 在ubuntu上使用QAudioInput、QAudioOutput等音频相关的类时，报错。 2、解决方法 1）在pro工程文件中添加了 Qt += multimedia 2）安装multimedia模组 sudo apt install libqt5multimedia* qtmultimedia5-* Feb 7, 2023 · 已经在pro文件中添加multimedia 在头文件包含时，能够包含QMediaPlayer，但QMediaPlaylist不能包含成功这是为啥 错误显示 C1083: 无法打开包括文件: “QMediaPlaylist”: No such file or directory I just downloaded Qt SDK 1. I have tried to deploy a project with QT Multimedia components using Qt 6. Dec 7, 2020 · 本猪猪用的是2021年官网上下载的最新版本的QT，应该是版本6. x support. The code execution cannot proceed because qt6multimedia. Make sure you properly set up your environment so the path to this library is in your PATH Media Player demonstrates a simple multimedia player that can play audio and video files using various codecs. 15 but results in. 2第一个beta版已发布，在众多新的扩展模块中，有一个全新的Qt Multimedia模块。Qt Multimedia在Qt 6中经历了相当大改变。尽管我们复用了Qt 5. py, after which I add the necessary files to mp3pyqt6. 9k Views. 1mvsc 如果仅是用qt creator 编写的话，只需要. 3. 0-1 because rollback to this version doesn't help to resolve the problem. dll was not found. qmake then make) I had a previous version (which qmake; qmake --version), and the Qt Creator has its own version installed when I installed Qt6. 6 with GStreamer 1. Jun 16, 2023 · I'm running Zorin OS 16. 1 that will make it work because my internet is super slow and the download size for the entire qt 6. 按照帮助文档，需要给CMakeList. I have verified tha Nov 1, 2022 · Looks like you just need to find_package(Qt6 REQUIRED COMPONENTS Concurrent) before you find_package(whatever). 3w次，点赞11次，收藏48次。Qt 6. txt. dll has in fact been deployed in the multimedia directory of my built app. pro file to use the multimedia library: QT += multimedia After making a change to the . I have installed Qt6 to my home directory, whereas on the old computer, it was Detailed Description. 3 MinGW 64-bit运行就可以了。 Oct 13, 2023 · Just downloaded Qt 6. How to report it properly? Nov 13, 2022 · 在Windows环境中使用Qt6进行开发时，遇到CMake配置错误，提示找不到Multimedia模块。 错误信息包括pro文件配置报错和CMake报错。 解决方法是通过Qt的MaintenanceTool. 141 1 1 gold badge 2 2 silver badges 4 4 bronze badges. Mar 15, 2021 · @NatK said in The code execution cannot proceed because Qt6Core. Aug 30, 2023 · This topic has been deleted. Controls 1. txt而不是. Asks twice, Tried doing it from the terminal - same thing, asks twice, then fails with: :: There are 2 providers available for qt6-multimedia-backend: :: Repository extra qt6 Jan 15, 2022 · find_package(QT NAMES Qt6 Qt5 COMPONENTS Core Gui Multimedia Widgets Concurrent Network REQUIRED ) find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Gui Widgets Multimedia Concurrent Network REQUIRED ) Aug 16, 2024 · 在Qt6. 4k次，点赞4次，收藏7次。该博客围绕 Qt 展开，提及使用 Qt 打开 QMediaPlayer、QMediaPlaylist、QVideoWidget、QMediaplayercontrol 等多媒体相关组件，在信息技术领域的多媒体开发方面有一定参考价值。 If the system does not provide a default for a camera or an audio input, QMediaDevices will select the first device from the list as the default device. com/questions/78577031/pyqt6-6-7-0-how-to-fix-error-no-qtmultimedia-backends-found please start by stating the exact version of PyQt you are running. Sep 30, 2022 · In Qt6 Multimedia must be selected, check if you have the library. 如果你的Qt版本中没有Multimedia模块，那么你需要安装它。打开Qt的在线安装器，选择“添加或删除组件”，然后在“Qt版本”下找到Multimedia模块并勾选它。 Oct 5, 2022 · could not load multimedia backend ““ QtMultimedia is not currently supported on. By using this DLL, developers can seamlessly integrate multimedia playback, recording, and other related capabilities into their Qt applications. QMediaCaptureSession. Apr 17, 2022 · Hi, I'm using Qt 6. Is there any sample program to test qt6-multimedia libraries? BTW, the qt commit redefines many things which are or will be in current mingw-w64 headers. A QAudioDevice is used by Qt to construct classes that communicate with the device – such as QAudioSource, and QAudioSink. Qt维护工具将开始安装Qt Multimedia模块，安装完成后你就可以使用它了。 注意：如果你使用的是Qt Creator，你还需要在项目文件中添加如下代码： ``` QT += multimedia ``` 这样才能正确链接Qt Multimedia模块。 Nov 11, 2024 · 在Qt开发中，QMediaPlayer是一个常用的多媒体播放类，但在实际使用过程中可能会遇到各种报错，本文将详细解析QMediaPlayer报错的常见原因及其解决方法，并提供相关示例和FAQs，QMediaPlayer报错及解决方法1. Explore Teams Jun 20, 2023 · 文章浏览阅读6. The specified module could not be found. There are a number of new features in Qt Multimedia: QMediaCaptureSession class is the central object for media capture. Does anybody have the same issues or knows how to solve them? Kind regards Nils May 25, 2022 · CSDN问答为您找到qt6中QMediaplaylist无法使用相关问题答案，如果想了解更多关于qt6中QMediaplaylist无法使用 c++ 技术问题等相关问答，请访问CSDN问答。 关注 码龄 粉丝数 原力等级 -- Sep 11, 2021 · 文章浏览阅读1. I will test it again with Qt 6. 0，并选择了大多数用于桌面开发的模块。我得到了这样一个奇怪的信息： Oct 19, 2022 · This topic has been deleted. I've just built QT Creator succesfully against my 671 build and so got what I wanted in the end. How to install <QtCharts> on windows. Last edited by brogolem35 (2023-10-21 12:46:14) Apr 17, 2016 · 环境VS + Qt5. Feb 3, 2022 · I recently installed Qt6 and found I could not run any multimedia type apps with the same error you have, but checking maintenance tool, I could see it was not included originally, now it's installed and I have just built a basic test app to run an mp3, it works as expected. 找到“Qt Multimedia”并勾选它，然后点击“确定”。 5. 2版本的构建套件，基本功能没问题，但是在添加组件时根本没有Additional Libraries的选项，换成6. 于是我将工程文件改为了. 1 Apr 14, 2016 · import QtQuick 2. Nov 15, 2021 · 4. Dependency 'Qt. ; Building Qt Multimedia from sources. 6. pro file and it has network access privilege. Sets an audio buffer output to the media player. 8. The change was made to allow for a symmetric API between audio and video and simplify the integration with QML. I have add QT += multimedia in . When I run from PySide6. 输入输出设备枚举. Is there a specific thing I can install from qt6. 04 up and running and then built Qt6. Scheduled Pinned Locked Moved Solved Qt Creator and other tools 11 Posts 3 Posters 1. While using the default input and output devices is often sufficient for playing back or recording multimedia, there is often a need to explicitly select the device to be used. pro file, you always need to run qmake to update the actual Makefile which is used for building the app. When i personally run my app it works, but when a user does, mp4 video is black. txt: find_package(Qt6 COMPONENTS Gui Quick REQUIRED) Oct 11, 2022 · I am trying to install Qt 6. But in your case you've a runtime issue. dll` is a Dynamic Link Library (DLL) file associated with Qt6, which is a version of the Qt framework developed and maintained by The Qt Company Ltd. Besides some minor code aspects that needed change all works well except the integration of Qt Multimedia. But I can't use this feature in QML, setSubtitleText seems not find in QML or at least not callable. Failed to initialize QMediaPlayer "Not available" Minimal code example: Mar 6, 2024 · Multimedia features will not work as expected. 8\multimediawidgets\player. My CMakeLists. 2\mingw\include\QtMultimedia? – Nov 3, 2021 · @SGaist said in Qt Multimedia not working:. Reason given by package: Failed to find Qt component "Widgets" config file at "" 原因是由于Qt虽然安装完了，但是Qt依赖的另外一些库没有安装： 我用的是Ubu. txt中新增. 15 to 6. Sep 15, 2019 · Hi. 0-alsa, libgstreamer1. dll运行不了程序, 换成QT6. 程序员ABCabc: QT6. I prescribe pyinstaller mp3pyqt6. 保存工程文件时遇到了题目所示的 Feb 25, 2025 · I install Qt with the online installer. exe). 15中的一些代码，在很多方面，它是一个全新的API和实现。_qtmultimedia find_package(Qt6 REQUIRED COMPONENTS Multimedia) target_link_libraries(mytarget PRIVATE Qt6::Multimedia) Selected window not found: Property Documentation active Sep 14, 2024 · Completely stumped. Improve this question. What module did I miss or maybe it's a bug? Used for the recording of media content. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are available. It contains an easy to use API for playing back audio and video files and rendering those on screen, as well as a comprehensive API for recording audio and video from the systems cameras and microphones. txt中包含以下内容： May 29, 2023 · 在Qt6中，QMediaPlaylist类已经被移除，Qt6并没有直接提供一个替代的类来支持播放列表功能。 如果你需要在Qt6中实现播放列表功能，你可能需要自己管理一个媒体URL列表，并在当前媒体播放结束后，通过QMediaPlayer的setMedia()或setSource()方法来设置下一个要播放的媒体。 [since 6. It's important to keep in mind that some device types have not been tested with Qt Multimedia by the Qt maintainers, and may not operate as intended. Dec 9, 2020 · Qt6 is a big change so for compatibility reasons Qt does not provide this module, it will be provided in Qt 6. If not run QtMaintenanceTool and add library to your current version. find_package(Qt6 REQUIRED COMPONENTS Widgets) target_link_libraries(mytarget PRIVATE Qt6::Widgets) 两行，我的原始CMakeList如下. It contains an easy to use API for playing back audio and video files and rendering those on screen, as well as a comprehensive API for recording audio and video from various sources, including system cameras and microphones, screen or window captures, and audio or video memory Jan 17, 2024 · 在Qt6中，multimedia模块是用于处理音频和视频的模块。 如果你的项目无法找到该模块，可能会导致编译错误或运行时错误。 本文将介绍解决这个问题的步骤，包括检查模块是否已安装、如何安装缺失的模块以及常见问题解决方法。 在 Windows 10 和 Windows 11 上使用 Anaconda 时出现问题。 这是 PyQt6=6. dll运行程序就成功了。 Debug中切换为Desktop QT6. 0-dev packages. but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT FOUND. e. dll'. May 19, 2014 · When I build it an android. Describes an encoding format for a multimedia file or stream. 9 C++开发指南，其余部分资料从网络中获取和整合，代码和演示部分都是我修改和试验而来。在. This includes tasks related to audio, video, radio, and camera features. May 10, 2021 · I'm not sure which one to choose or does it matter? I have both ffmpeg and gstreamer installed. py No QtMultimedia backends found. 3 Item { width: 640 heigh Jul 5, 2023 · 3. pro文件中引入多媒体： QT += multimedia 如果需要使用视频功能，还需引入： QT += multimediawidgets(引入了QVideoWidget和QGraphicsVideoItem等) 想要使用这些接口播放音视频文件时，首先需要在头 Apr 23, 2023 · 错误信息 MSVC2019_64bit Running D:\Qt\Tools\CMake_64\bin\cmake. Currently, I am unable to play any non-local files (http/https/rtsp/) using the FFmpeg backend. For more information, see Qt Creator: Tutorial: Build and run. But are you using qt5 or qt6? your installed version of qt multimedia is 6. 3 and using the Qt Multimedia(Widgets) module. cmake 的目录。 但是，构建似乎无法在 Qt6 安装中找到它所需的任何其他依赖项，我不确定下一步需要做什么。 Jun 9, 2021 · Not sure if you are using Qt6. May 12, 2025 · Within the Qt6 ecosystem, `Qt6Multimedia. Qt6Widgets_INCLUDE_DIRS: A list of include directories to use when building against the library. Oct 5, 2024 · Because of https://stackoverflow. Jul 5, 2023 · 4. pro文件中添加以下行来包含Multimedia模块： ``` QT += multimedia ``` 请注意，您还需要确保已经在计算机上安装了Qt Multimedia库。如果您已经安装了Qt，但仍然无法找到<QMediaPlayer>，则可能需要安装Qt Multimedia库。 Jun 20, 2024 · Hi ,I have builded tdx-reference-multimedia-image with meta-qt6 layer added successfully. 22. 3 and CMake 3. QAudioDevice describes an audio device available in the system, either for input or for playback. exe，选择添加或移除组件，安装Multimedia模块，完成 Nov 13, 2022 · E:\CPlus\XXXX\CMakeLists. QMediaMetaData. However, the availability of hardware backends depends on the OS, installed drivers, the FFmpeg version, and configuration. 2 import QtMultimedia 5. This can lead to various of installation errors such as “ReferenceError: registerQtCreatorDocumentation is not defined”, “Cannot open script file…”, ”Cannot open requested license file…” etc. spec, updating the pyinstaller mp3pyqt6. Reason given by package: Mar 9, 2023 · I'm trying to build Qt 6. Do you have the multimedia headers in e. But I cannot use QtMultimedia in qml. * An ALIAS target is missing. I have tried adding the ffmpeg directory in my repo where I have those DLLs to the --add-data and to the -p and it still doesn't find them. 1 is big even without the things I dont need. 0 查看了很多资料发现了几个可能的错误原因，总结如下： 1 未添加Pro文件的：multimedia 解决方法： 在Pro文件里加上QT+=multimedia 添加了还没有的小伙伴记得保存构建一下，就有了 即在构建里面点击qmake一下，或者那个那个小锤子 2 软件不 Aug 12, 2023 · 您可以在. As a rationale behind having it in public link interface: maybe author prefers that your project fails to configure on cmake step instead of fail to link after compilation. May 6, 2023 · You can use the following command to search a directory files for a string: grep -r "No backend for low level audio found. 4 the ffmpeg backend is available in most binary builds, but it should be switched on by setting the environment variable QT_MEDIA_BACKEND=ffmpeg. I attempted to rebuild Qt 5. pro里面添加如下语句 QT += multimedia 对应的头文件 【#include < Jul 7, 2022 · Qt6 重构了多媒体模块，一些接口也随之变动，本文记录用到的部分音频相关类的变化。 （PS：Qt6. 6. Jun 17, 2024 · Qt6. 04上安装Qt开发环境的步骤，包括下载Qt在线安装包，安装必需的环境如build-essential和libgl1-mesa-dev，以及解决安装和运行时可能遇到的错误，如libxcb-xinerama0、libxkbcommon-dev和libvulkan-dev的缺失问题。 Note: Qt Multimedia requires the FFmpeg avformat, avcodec, swresample, swscale, and avutil libraries during runtime to be able to use the FFmpeg media backend. 10-dev libgstreamer-plugins-base0. Qt6_DIR 设置为包含 Qt6Config. It contains an easy to use API for playing back audio and video files and rendering those on screen, as well as a comprehensive API for recording audio and video from various sources, including system cameras and microphones, screen or window captures, and audio or video memory Qt6Widgets_FOUND: A boolean that describes whether the module was found successfully. Jul 27, 2023 · 文章浏览阅读5. Qt6Widgets_LIBRARIES: The name of the imported target for the module: Qt6::Widgets: Qt6Widgets_PRIVATE_INCLUDE_DIRS Oct 4, 2023 · I tried to install GStreamer 0. 04 and I started getting these errors when running the app: qt. If there’s any more info I need to provide, please let me know. 3的QTMultimedia. 0\Examples\Qt-5. Jul 6, 2021 · Both packages are found correctly when using Qt5. Jan 24, 2021 · 在编写串口时遇到了以下问题：Unknown module(s) in QT: multimedia 在ubuntu中解决方法如下： qtmultimedia5-de sudo apt-get install qtmultimedia5-dev 在编译下：如果不行， sudo apt-get install libpul se-dev 就可以搞定啦。 multimedia; Share. 8k次，点赞20次，收藏25次。5、点击下一步，安装完成后，重启QT，然后点开pro工程文件，输入QT += multimedia 即可。4、在搜索框搜搜media，并且选择对应版本qt下的QT multimedia，必须对应。 Sep 15, 2023 · 它是 Qt Multimedia 模块提供的一个用于管理媒体播放列表的类。你可以通过创建 QMediaPlaylist 对象，并将音频文件添加到其中，然后将该播放列表与 QMediaPlayer 相关联以实现相应的功能。 以下是一个示例代码片段，展示了如何创建和使用 QMediaPlaylist： Oct 28, 2021 · 我使用在线安装程序安装了Qt 6. Yes, that's the thing to do if you want to use QtMultimedia with Qt 6. But including QAbstractVideoSurface doesn't work! #include <QAbstractVideoSurface> //file not found I've tried updating components and installing Qt 6. Nov 8, 2024 · No QtMultimedia backends found. mediaplayer" 于是我上网查找相关的资料，是因为缺少相对应Qt multimedia的环境配置，其实，就是缺少gstreamer的配置，这里提 Jul 7, 2021 · Not setting an audio output will imply that the media player doesn’t play audio. Possible reasons include: * There is a typo in the target name. Oct 10, 2021 · Hi, I've installed QT6. 构建的架构非常难以维护和开发模块。在 Qt6 中，我们选择显着简化这一过程并移除插件基础设施。现在在编译时选择后端并编译到 Qt Multimedia 的共享库中。现在只有一个后端 API 涵盖了所有多媒体，消除了我们在 Qt 5 中人为拆分成多个后端的问题。 Feb 3, 2022 · @SGaist If you mean to work with the following lines: find_package(Qt6 COMPONENTS Multimedia REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::Multimedia Apr 19, 2024 · 18638 WARNING: Library not found: could not resolve 'swresample-4. QtMultimedia import QMediaPlayer, QMediaPlaylist from PySide6. also note that even though i get that message, i do see that ffmpegmediaplugin. I've installed Qt from the official Qt installer (MaintenanceTool. 5 with Qtmultimedia module and I'm having issue with enabling ALSA backend. Failed to initialize QMediaCaptureSession "Not available" Failed to initialize QCamera "Not available" Failed to create QVideoSink "Not available" By I've seen similar posts talking about the same issue but not in asahi linux. 2w次，点赞15次，收藏61次。在Ubuntu22. Qt维护工具将开始安装Qt Multimedia模块，安装完成后你就可以使用它了。 注意：如果你使用的是Qt Creator，你还需要在项目文件中添加如下代码： ``` QT += multimedia ``` 这样才能正确链接Qt Multimedia模块。 Jan 22, 2024 · 在项目中，使用到了Qt6. 5 import QtQuick. Jun 24, 2023 · qt6打开摄像头（未使用QCameraInfo和QCameraViewfinder） NS_ice: 没有了，只能用文中的方法，或者我博客里也写了一篇. 0\msvc2019_64\lib\cmake. 10-dev. 2 (which is derived from ubuntu, linux). Debug says module "QtMultimedia" plugin "declarative_multimedia" not found for Release and D/MediaPlayer(15621): Couldn't open file on client side, trying server side for Debug version. 1,安装完Qt后，发现使用QtCreator时候，报这个错误： but it set Qt6_FOUND to FALSE so package "Qt6" is considered to be NOT FOUND. 04 with Qt 6. 在 Qt5 中用 QAudioDeviceInfo 的静态函数来查询音频输入输出设备，一个实例表示一个设备： Jan 26, 2023 · I have ported a solution using Qt Multimedia from 5. 0模块的QTMultimedia. 3之后同时添加多媒体模块，构建套件选择6. Only users with topic management privileges can see it. I did install QMultimedia through maintainance tool and kept using the very same Qbs which works for 5. 1 with all the dependancies. I have installed the required packages according to the documentation I have Qt Multimedia is an add-on module that provides a rich set of QML types and C++ classes to handle multimedia content. Oldest to Newest. Bear in mind I am kind of a dumbuser. 2 as this post: Add-on support in Qt 6. 2, see the pictures as follow What should we do? @Mihan Try Multimedia with the second "m" in lowercase. 7. 1. txt 文件以使用正确的 Qt6 组件。本文还回答了常见问题，例如是否需要设置 Nov 12, 2022 · I'm using PyInstaller v5. Allows the Jun 3, 2024 · No QtMultimedia backends found. I' ve little experience with cmake, so I can't give you a 100% straight answer. 缺 Jun 20, 2023 · 4、在搜索框搜搜media，并且选择对应版本qt下的QT multimedia，必须对应。 3、查看Qt版本，切勿以下图版本为准，about界面的版本号可能不是真实版。 下图是Qt真实版本，以这个窗口的Qt版本为准，选择安装组件。 Dec 13, 2024 · (venv) alpha@pi:~/PuniPi $ python mediaplayer. You should ensure that the Multimedia backend is available on your system or not? Best regards, Khoa May 9, 2023 · @SGaist Hi! Thank you for the quick reply. EDIT: In question you mentioned about Qt5, but in topic of the question there are no information about Qt5, so people having the same problem with QMediaPlaylist ' in Qt6 are reading your question. I'm trying to build QT 6. 2 该模块才回归，模块名未变，依旧是 multimedia） 1. but so far the multimedia module has not been added. Last edited by walkingstickfan (2023-07-28 06:35:03) Aug 28, 2021 · I'm setting up a new computer as development machine and working with cmake that worked just fine on another computer. This is a change from Qt 5, where a default audio output was always selected. x. Information about available multimedia input and output devices. When I do find_package(Qt6 REQUIRED COMPONENTS C 我正在尝试通过CMake构建一个项目，并将环境变量Qt6_DIR设置为包含Qt6Config. Mar 12, 2024 · @shibe yes exactly. I manually compiled Qt 5. A minimal media player implemented in C++ looks like this: QMediaPlayer Jul 7, 2021 · Not setting an audio output will imply that the media player doesn’t play audio. 15 in the code Apr 25, 2019 · Hi @bob_harris and welcome. 8] audioBufferOutput: QAudioBufferOutput * This property holds the output audio buffer used by the media player. 0及以上版本应该包含多媒体模块。 步骤 2：检查CMakeLists. Dec 29, 2023 · 'QObject' file not found in Qt 6. May 5, 2023 · erreur : Target "NewProj" links to: Qt6::Multimedia but the target was not found. dll` specifically handles multimedia functionalities. Started having problems with Firefox video, tried updating firefox, ran into this issue. QT QMediaPlayer is not found, despite the addition of multimedia in the make file. If one or more of these dynamic libraries are not found during application startup, the FFmpeg media backend will fail to load, and the system will attempt to load the native backend. : why isn't that file moved into the build directory? Because it must not be there. ukll gopxo gnwk scle gxxa zbslm ksiyb upyhie ltll mti