Details
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Bug
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Resolution: Unresolved
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P3: Somewhat important
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None
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6.9.1
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None
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OS: Linux
Distro: ArchLinux
Kernel: 6.15.4-arch2-1
glibc version: 2.41
ffmpeg version n7.1.1
Description
So, I have this code
```cpp
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
qDebug() << "Qt version" << QT_VERSION_STR;
ui->setupUi(this);
QIODevice* device = nullptr;
QAudioDecoder* decoder = new QAudioDecoder(this);
decoder->setSource(QUrl::fromLocalFile("/home/klewy/song.mp3"));
connect(decoder, &QAudioDecoder::bufferReady, this, [=]() mutable {
QAudioBuffer buffer = decoder->read();
if (buffer.isValid()) {
if (!audioSink)
const char* rawData = buffer.constData<char>();
device->write(rawData, buffer.byteCount());
}
});
connect(decoder, &QAudioDecoder::finished, this, []
);
decoder->start();
}
```
Output:
```
qt.multimedia.ffmpeg: Using Qt multimedia with FFmpeg version n7.1.1 GPL version 3 or later
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
Input #0, mp3, from '/home/klewy/song.mp3':
Metadata:
title : Slowed (Muzdark.net)
artist : Passo Bem Solto
album : Muzdark.net
comment : Muzdark.net
genre : Muzdark.net
date : 2024
Duration: 00:01:56.14, start: 0.025056, bitrate: 321 kb/s
Stream #0:0: Audio: mp3 (mp3float), 44100 Hz, stereo, fltp, 320 kb/s
Metadata:
encoder : Lavc58.91
Stream #0:1: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 400x400 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn (attached pic)
Metadata:
title : logo.jpg
comment : Other
[mp3float @ 0x5595dbaf0800] Could not update timestamps for skipped samples.
Sample rate 44100
Channel count 2
Sample format Float
[mp3float @ 0x5595dbaf0800] Could not update timestamps for discarded samples.
audio finished
```
The problem is only the last about 10+- seconds are played.
As for the file, it is perfectly fine, I tried to play it with different tools and it worked, but just in case I'm attaching that exact .mp3 file
I also get those mp3float suspicious warnings