No qtmultimedia backends found qt. Asking for help, clarification, or responding to other answers. The console that comes wit Dec 28, 2024 · mutimedia/build/demo. 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. What do you guys propose I use now to play WAV sound files? Is there something similar to QtMultimedia. Mar 9, 2023 · I'm trying to build Qt 6. In qmake you would simply write QT += multimedia to link against it. Everything seems to work fine except when I try to build the declarative-camera example or other multime For most features, Qt Multimedia builds upon the multimedia framework of the underlying system. But for my surprise it didn’t play a song I selected. qml:4:1: module "QtMultimedia" is not installed qrc:/main. 简介使用QML语言进行QT应用程序开发可以将界面开发和逻辑控制分开，提高应用的开发周期和灵活性；另外对于多媒体应用非常重要的一点是，基于QML/QT Quick 的应用程序可以直接调用GPU进行加速，这大大提高了多媒体应用在嵌入式系统环境下的处理效率和资源占用，因此本文就基于QML和 Mar 27, 2024 · No QtMultimedia backends found. May 12, 2024 · I have installed audiotube today. One way to determine what goes wrong is to start your application with the QT_DEBUG_PLUGINS environment set to 1. I've installed libasound2, libasound2-dev, libasound2-data, gstreamer1. 11, the QMediaPlayer widget (QtMultimedia module) require an additional library to communicate with the GStreamer backend on Linux. Dec 23, 2022 · I've researched online and found posts with people compiling their own QTMultimedia with ffmpeg, but failed to produce any steps or details. Failed to initialize QMediaCaptureSession May 17, 2024 · Works fine before packaging with Nuitka, error after packaging with Nuitka: No QtMultimedia backends found. If not, I need something that is cross-platform (Windows, Linux, Mac) and simple to implement. run. Mar 18, 2017 · @KhoaTran-Programmer The Gstreamer command line tools doesn't work (no such command exists according to terminal even with sudo). /demo No QtMultimedia backends found. QtMultimedia is it's own module. 10 (mutimedia) . There are currently three kinds of plugins in Qt Multimedia: QMediaDevices monitors the system defaults for each device group. I'm trying to build QT 6. Dec 25, 2022 · Description of the issue A Qt app using QtMultimedia crashes on startup because of missing plugin dll. Failed to initialize QMediaPlayer "Not available" #525 Jun 8, 2024 · QMediaPlayer works good on QT 6. dll运行不了程序, 换成QT6. 1 Reply Last reply . 问题描述. 程序员ABCabc: QT6. J Offline. Using a Qt module requires linking against the module library, either directly or through other dependencies. It will print a lot of information and should tell you more about what is failing with the backend. 在本文中，我们将介绍在Windows上，使用PyQt 5时无法导入QtMultimedia模块的问题，并提供解决方案。 阅读更多：PyQt 教程. connect(app. Jul 7, 2022 · 在之前的文章里创建了项目、引入ffmpeg、进行视频解析并绘制在自定义QWidget。音视频学习 - 创建QT + ffmpeg项目进行视频解析_坐望云起的博客-CSDN博客在mainwindow. Failed to initialize QMediaCaptureSession Nov 8, 2024 · No QtMultimedia backends found. About the ffmpeg doesn't having backend, it shows this when you try to start some video with the ffmpeg backend: No QtMultimedia backends found. It will notify about any changes done through the system settings. 4. In some cases the available cross-platform Multimedia APIs or implementations are not sufficient, or not immediately available on a certain platform. May 10, 2024 · 虽然我们试图为我们的大多数模块保持 Qt 5 和 Qt 6 之间尽可能多的源代码兼容性，但我们不得不在此处进行大量更改以使 API 和实现适合未来，最终决定以最好的为目标API 而不是最大的兼容性。如果您一直在 Qt 5 中使用_qtmultimedia May 9, 2023 · @SGaist Hi! Thank you for the quick reply. Failed to initialize QMediaCaptureSession "Not available" Failed to initialize QCamera "Not available" Failed to create QVideoSink "Not available" 我见过类似的帖子谈论相同的问题，但不是在 asahi linux 中。 Feb 3, 2022 · I see no mention of starting the Maintenance Tool and checking that QtMultimedia is actually included/installed in your current set up. 0 的完整错误消息： No QtMultimedia backends found. Running from the terminal this is what I get futuresql: Migrations finished futuresql: Running "select distinct (search_query) from searches order by search_id desc limit 20" futuresql: Running "select * from favourites natural join songs order by favourites. 568 Thread: 1604 Warning Failed to initialize QMediaPlayer “Not available” Sep 7, 2016 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 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 Feb 25, 2021 · ModuleNotFoundError: No module named 'PySide6. argv) engine = QQmlApplicationEngine() engine. 6添加多媒体模块Multimedia报Unknown module(s) in QT: multimedia错误问题，添加其他模块同理。 Nov 8, 2024 · No QtMultimedia backends found. It will dump everything that goes on with the plugins. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are Mar 15, 2021 · I was using QtMultimedia's QSound() class to play WAV sound files by using its play() method. The file libQt5MultimediaGstTools. Changed feature Notes; Handling of Camera resolutions and frame rates: Handling of these has been simplified and a new QCameraFormat class helps with selecting the correct resolution and frame rate for the camera. so. In Qt 5, we had for example three completely different backend implementations on Windows, using DirectShow, WMF and a separate WMF based implementation for WinRT. 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。 Note: Qt Multimedia requires the FFmpeg avformat, avcodec, swresample, swscale, and avutil libraries during runtime to be able to use the FFmpeg media backend. Jump to navigation Jump to search. Last edited by walkingstickfan (2023-07-28 06:35:03) Jul 5, 2023 · 你好！对于麒麟系统下缺少QtMultimedia模块的问题，你可以尝试以下几种方法来解决： 1. 2 [generators] cmake_paths cmake_find Oct 5, 2024 · No QtMultimedia backends found. ui的设计界面，拖一个Widget到主界面，然后在Widget上点击右键，然后选择提升为，在提升的类名称处输入上面自定义控件的类名。 Oct 4, 2023 · Unable to use Qt Multimedia in Qt 5. 5 with Qtmultimedia module and I'm having issue with enabling ALSA backend. spec command. 4 Multimedia Backends; Qt 5. 0 Multimedia Backends; Qt 5. Nov 8, 2024 · No QtMultimedia backends found. Feb 20, 2021 · If I'm not wrong there is no QtMultimedia Module for Qt 6, from New Features in Qt 6. load("window. I'm running Zorin OS 16. 更新系统软件包：使用包管理器（如apt）更新系统软件包，确保所有相关的QtMultimedia组件已经安装并且是最新版本。 Jul 7, 2021 · Supported backends. 2. 2024-12-26 13-41-53. spec, updating the pyinstaller mp3pyqt6. exit(app. Qt introduced the ffmpeg backend in 6. 3k次，点赞15次，收藏12次。文章讲述了在Python项目中遇到PyQt5. Oct 5, 2024 · Start your application with the QT_DEBUG_PLUGINS environment variable set to 1. 1, my qml video playback is not working any more. txt: [requires] qt/6. 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. 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 various sources, including system cameras and microphones, screen or window captures, and audio or video memory Detailed Description Using the Module. Oct 18, 2024 · No QtMultimedia backends found. The glue between platform specific libraries and Qt Multimedia is contained in a plugin. Failed to initialize QMediaPlayer "Not available" Failed to create QVideoSink "Not available" Nov 8, 2024 · No QtMultimedia backends found. The Qt Multimedia module provides APIs for playing back and recording audiovisual content. Do you have that library in your system ? It's a subpackage of old ffmpeg but in my system I'm using latest version of ffmpeg. 0 - How to fix error: No QtMultimedia backends found. Oct 5, 2022 · could not load multimedia backend ““ QtMultimedia is not currently supported on. Oct 8, 2021 · Hello! Trying to port a program to Qt6, now that 6. import sys from PySide6. Failed to initialize QMediaPlayer "Not available" Failed to create QVideoSink "Not available"' ffmpeg is installed, gstreamer is installed, I tried to place "QT_MEDIA_BACKEND=ffmpeg" in the environment variables. Here is my conanfile. Failed to initialize QMediaPlayer "Not May 23, 2022 · Saved searches Use saved searches to filter your results more quickly Jul 27, 2023 · 文章浏览阅读5. 2 (which is derived from ubuntu, linux). Jul 18, 2024 Jan 21, 2013 · Re: [SOLVED] Qt for Python fails to import PySide6. 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. Failed to initialize QMediaCaptureSession Aug 29, 2023 · Dear all, I am currently trying to build Qt 6. 6 LTS: "No service found for - org. Provide details and share your research! But avoid …. backends-found. Failed to initialize QMediaPlayer "Not available" Apr 1, 2024 · To resolve the "No Qt Multimedia Backends Found" issue on Windows 11, ensure that the necessary Qt components are installed, manually build the Qt Multimedia backends if needed, and include the required backends in your project. 22. " . QtMultimedia模块找不到的问题，分析了原因（缺少完整PyQt5库），提供了通过pipinstallPyQt5来安装完整版本的解决方案，并给出了成功安装后的示范。 Jun 3, 2024 · No QtMultimedia backends found. 2 的第一个测试版刚刚发布，并在多个其他新附加组件中加入了全新的 Qt 多媒体模块。Qt Multimedia 是一个模块，它在 Qt 6 中发生了一些相当大的变化。在很多方面，它是一个新的 API 和实现，即使我们… Nov 8, 2024 · No QtMultimedia backends found. Qt 5. It looks like missing library. only qmediadevices, qaudiodevice, qsoundeffe Oct 5, 2024 · No QtMultimedia backends found. When I roll back to 6. 0-plugins-base tells me it's already installed. 0 Version of Python: 3. Only QMediaDevices, QAudioDevice, QSoundEffect, QAudioSink, and QAudioSource are available I am working on a project on Asahi Linux on Macbook air m1 and tried Camera class in qml file. Failed to initialize QMediaPlayer "Not Mar 30, 2025 · 文章浏览阅读3次。### Qt Multimedia 中 QSoundEffect 播放 MP3 文件时解码错误的解决方案 #### 问题分析 QSoundEffect 是 QtMultimedia 模块的一部分 Dec 13, 2021 · The multimedia support in Qt has seen some larger changes between 5. eoxnv tlakkrxb lvchz eyjyilw qyr lwwq kzl fukut qmmjj glicy zhrh bbwmx wnsw vwf tftqpnr
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