1.带绝对路径 - QString video_File;
//mnt/sdcard/
//将路径写入video.txt
QString name_file="video.txt";
QFileInfo fileInfo;
QString Path;
QString filter="视频文件(*.mp4 *.wmv);;mp3文件(*.mp4);;;wmv文件(*.wmv);;所有文件(*.*)"; //文件过滤器
QStringList fileList=QFileDialog::getOpenFileNames(this,"选择视频文件","/home",filter);
if (fileList.count()<1)
return;
for (int i=0; i<fileList.count();i++)
{
video_File=QString("'%1'\n").arg(fileList.at(i));//得到绝对路径
video_File.insert(0, QString("file\t"));//在开头添加字符
Path = QCoreApplication::applicationDirPath()+"/"+name_file;//路径
QDir dir3;
//如果指定的路径不存在时
if(dir3.exists(Path))
{
dir3.mkpath(Path);//创建目录所需的所有父目录
qDebug()<<"路径创建成功";
}
QFile file;
file.setFileName(Path);
bool bOk = file.open(QIODevice::ReadWrite | QIODevice::Append);//以读写切追加写入的方式操作文本
if(bOk)
{
QByteArray res2 =video_File.toUtf8();//toUtf8()转为QByteArray
file.write(res2);
}
file.close();
}
ui->plainTextEdit->clear();
this->He_Bing(name_file);
QString data;
QFile file(Path); //path是文件的路径
if(!file.open(QIODevice::ReadOnly | QIODevice::Text))
{
qDebug()<<"文件未打开!";
}
while(!file.atEnd())
{
QByteArray array = file.readLine();
QString str(array);
// qDebug()<< str;
data.append(str);
}
ui->plainTextEdit->appendPlainText(data);
txt内容如下： file '/home/temp/bin/2.mp4' file '/home/temp/bin/1.mp4' file '/home/temp/bin/0.mp4' 2.去除路径 - QString Widget::He_Bing(QString file_path)
{
//ffmpeg -f concat -i filelist.txt -c copy output.mp4
QString strCmd=QString("ffmpeg -f concat -i %1 -c copy output.mp4").arg(file_path);
qDebug()<<"地址传来:"<<strCmd;
QProcess process;
// process.setWorkingDirectory(ffmpeg_path);
// process.setReadChannel(QProcess::StandardOutput);
process.start(strCmd);
process.waitForFinished();
qDebug()<<"返回数据:"<<process.readAll();
return process.readAll();
}
void Widget::on_he_bin_clicked()
{
QString video_File;
//mnt/sdcard/
//将路径写入video.txt
QString name_file="video.txt";
QFileInfo fileInfo;
QString Path;
QString filter="视频文件(*.mp4 *.wmv);;mp3文件(*.mp4);;;wmv文件(*.wmv);;所有文件(*.*)"; //文件过滤器
QStringList fileList=QFileDialog::getOpenFileNames(this,"选择视频文件","/home",filter);
if (fileList.count()<1)
return;
for (int i=0; i<fileList.count();i++)
{
QFileInfo fileInfo;
fileInfo=fileList.at(i);//去除路径
video_File=QString("file '%1.mp4'\n").arg(fileInfo.baseName());//在开头添加字符
Path = QCoreApplication::applicationDirPath()+"/"+name_file;//路径
QDir dir3;
//如果指定的路径不存在时
if(dir3.exists(Path))
{
dir3.mkpath(Path);//创建目录所需的所有父目录
qDebug()<<"路径创建成功";
}
QFile file;
file.setFileName(Path);
bool bOk = file.open(QIODevice::ReadWrite | QIODevice::Append);//以读写切追加写入的方式操作文本
if(bOk)
{
QByteArray res2 =video_File.toUtf8();//toUtf8()转为QByteArray
file.write(res2);
}
file.close();
}
ui->plainTextEdit->clear();
QString data;
QFile file(Path); //path是文件的路径
if(!file.open(QIODevice::ReadOnly | QIODevice::Text))
{
qDebug()<<"文件未打开!";
}
while(!file.atEnd())
{
QByteArray array = file.readLine();
QString str(array);
// qDebug()<< str;
data.append(str);
}
ui->plainTextEdit->appendPlainText(data);
this->He_Bing(name_file);
}
txt内容如下： file '2.mp4' file '1.mp4' file '0.mp4' |
