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Preferences: warn if ffmpeg can't be loaded

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In the preferences widget warn the user when they enter a non-executable
path to ffmpeg. Thus they don't have to start thumbnailing just to
find out that the path is wrong.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-07-05 21:41:21 +02:00 • committed by Dirk Hohndel
parent 9eb860d45d
commit 66a5b394d7
2 changed files with 29 additions and 1 deletions
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28
desktop-widgets/preferences/preferences_defaults.cpp
View file

@ -8,6 +8,8 @@
#include "core/settings/qPrefDiveComputer.h"
#include <QFileDialog>
#include <QProcess>
#include <QMessageBox>
PreferencesDefaults::PreferencesDefaults(): AbstractPreferencesWidget(tr("General"), QIcon(":preferences-other-icon"), 0 ), ui(new Ui::PreferencesDefaults())
{
@ -45,13 +47,37 @@ void PreferencesDefaults::on_localDefaultFile_toggled(bool toggle)
ui->chooseFile->setEnabled(toggle);
}
void PreferencesDefaults::checkFfmpegExecutable()
{
QString s = ui->ffmpegExecutable->text().trimmed();
// If the user didn't provide a string they probably didn't intend to run ffmeg,
// so let's not give an error message.
if (s.isEmpty())
return;
// Try to execute ffmpeg. But wait at most 2 sec for startup and execution
// so that the UI doesn't hang unnecessarily.
QProcess ffmpeg;
ffmpeg.start(s);
if (!ffmpeg.waitForStarted(2000) || !ffmpeg.waitForFinished(3000))
QMessageBox::warning(this, tr("Warning"), tr("Couldn't execute ffmpeg at given location. Thumbnailing will not work."));
}
void PreferencesDefaults::on_ffmpegFile_clicked()
{
QFileInfo fi(system_default_filename());
QString ffmpegFileName = QFileDialog::getOpenFileName(this, tr("Select ffmpeg executable"));
if (!ffmpegFileName.isEmpty())
if (!ffmpegFileName.isEmpty()) {
ui->ffmpegExecutable->setText(ffmpegFileName);
checkFfmpegExecutable();
}
}
void PreferencesDefaults::on_ffmpegExecutable_editingFinished()
{
checkFfmpegExecutable();
}
void PreferencesDefaults::on_extractVideoThumbnails_toggled(bool toggled)

2
desktop-widgets/preferences/preferences_defaults.h
View file

@ -21,12 +21,14 @@ public slots:
void on_btnUseDefaultFile_toggled(bool toggled);
void on_localDefaultFile_toggled(bool toggled);
void on_ffmpegFile_clicked();
void on_ffmpegExecutable_editingFinished();
void on_extractVideoThumbnails_toggled(bool toggled);
void on_resetSettings_clicked();
void on_resetRememberedDCs_clicked();
private:
Ui::PreferencesDefaults *ui;
void checkFfmpegExecutable();
};