c++ - QAudioDecoder "GStreamer; Unable to start decoding process"

Question

我得到以下错误

GStreamer; Unable to start decoding process

当我尝试启动 QAudioDecoder 时在控制台中。

以下代码:

void Media::decode(Memo* memo){
   decoder = new QAudioDecoder();
   format.setSampleRate(48000);
   format.setChannelCount(1);
   format.setSampleSize(8);
   format.setCodec("audio/pcm");
   format.setSampleType(QAudioFormat::UnSignedInt); 
   format.setByteOrder(QAudioFormat::LittleEndian);
   decoder->setAudioFormat(format);
   decoder->setSourceFilename(memo->getPathMedia());
   connect(decoder, SIGNAL(bufferReady()), this, SLOT(readBuffer()));
   decoder->start();
}



void Media::readBuffer(){
    buffer = decoder->read();
}

我希望你能帮助我。

Answer 1

正如@nayana 建议的那样，我使用 GST_DEBUG=3 启用了 GStreamer 调试日志。它显示源文件名设置不正确:

filesrc gstfilesrc.c:632:gst_file_src_uri_set_uri:<source> Invalid URI 'file:file:///home/rom1/Music/track01.mp3'


只需删除 file:前缀并且有效。

// In my source file ...
QString source = qvariant_cast<QString>(audioPlayer->property("source"));

source.remove(0, 7);

qDebug() << "Loading media" << source;
decoder.setSourceFilename(source);
decoder.start();