Details
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Bug
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Resolution: Unresolved
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P1: Critical
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None
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6.5.0
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None
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Windows 11 22H2
Both Qt 6.5.0 MinGW version provided by Qt Online Installer, and the MSYS2 version
Not sure if it's related but system locale is Chinese.
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Windows
Description
Trying to use QMediaPlayer to play a file which its filename and/or filepath contain non-ascii characters under Windows will result playback failed.
Steps to reproduce:
1. Install Qt6 with Qt6 multimedia installed (currently `mingw64/mingw-w64-x86_64-qt6-multimedia 6.5.0-1 (mingw-w64-x86_64-qt6)`)
2. Save the following sample code to local, modify the path in `main.cpp` to an existing valid audio file on your machine, and ensure the path doesn't contain any non-ascii characters. (e.g. `R"path(D:\Users\Gary\Downloads\Music\sample.wav)path"`)
3. Compile the following sample program.
4. Run the program, the audio file should be able to play.
5. Re-do step 2, and modify the path to an existing file that contain non-ascii characters. (e.g. `R"path(D:\Users\Gary\Downloads\Music\sample - 副本.wav)path"`)
6. Compile the program again and run the program, now the audio file cannot be played.
Sample code:
CMakeLists.txt:
cmake_minimum_required (VERSION 3.9.5)
project (qt6mm)
set (CMAKE_AUTOMOC ON)
set (CMAKE_AUTORCC ON)
find_package(QT NAMES Qt6 REQUIRED COMPONENTS Core)
set (QT_MINIMUM_VERSION "6.5")
find_package(Qt${QT_VERSION_MAJOR} ${QT_MINIMUM_VERSION} REQUIRED
COMPONENTS Widgets Multimedia
)
set (EXE_NAME testbug)
add_executable (${EXE_NAME} main.cpp)
target_link_libraries (${EXE_NAME} Qt::Widgets Qt::Multimedia)
main.cpp:
#include <QApplication> #include <QAudioOutput> #include <QMediaPlayer> int main(int argc, char* argv[]) { QApplication app(argc, argv); auto path = QUrl::fromLocalFile(R"path(D:\Users\Gary\Downloads\Music\sample - 副本.wav)path"); // change the path here. QMediaPlayer * player = new QMediaPlayer; QObject::connect(player, &QMediaPlayer::sourceChanged, [&player](){ qDebug() << player->source(); }); QObject::connect(player, &QMediaPlayer::errorOccurred, [&player](){ qDebug() << player->errorString(); }); player->setAudioOutput(new QAudioOutput); player->setSource(path); player->play(); return app.exec(); }
When non-ascii characters are in filename or path, qDebug() will output:
"Could not open file" QUrl("file:///D:/Users/Gary/Downloads/Music/sample - 副本.wav")
Related: https://github.com/msys2/MINGW-packages/issues/16756