Change:
<del> diff --git a/src/docks/encodedock.cpp b/src/docks/encodedock.cpp index 3359f676..24e44f98 100644 --- a/src/docks/encodedock.cpp +++ b/src/docks/encodedock.cpp @@ -2177,7 +2177,7 @@ bool EncodeDock::detectHardwareEncoders() { MAIN.showStatusMessage(tr("Detecting hardware encoders...")); QStringList hwlist; -    QFileInfo ffmpegPath(qApp->applicationDirPath(), "ffmpeg"); +    QFileInfo ffmpegPath("@ffmpeg@/bin/ffmpeg"); foreach (const QString &codec, codecs()) { LOG_INFO() << "checking for" << codec; QProcess proc; @@ -2220,7 +2220,7 @@ bool EncodeDock::detectHardwareEncoders() QString &EncodeDock::defaultFormatExtension() { auto format = ui->formatCombo->currentText(); -    QFileInfo ffmpegPath(qApp->applicationDirPath(), "ffmpeg"); +    QFileInfo ffmpegPath("@ffmpeg@/bin/ffmpeg"); QProcess proc; QStringList args; args << "-hide_banner" << "-h" << format.prepend("muxer="); diff --git a/src/jobs/ffmpegjob.cpp b/src/jobs/ffmpegjob.cpp index 1f15e647..b6ad6633 100644 --- a/src/jobs/ffmpegjob.cpp +++ b/src/jobs/ffmpegjob.cpp @@ -54,7 +54,7 @@ FfmpegJob::~FfmpegJob() void FfmpegJob::start() { QString shotcutPath = qApp->applicationDirPath(); -    QFileInfo ffmpegPath(shotcutPath, "ffmpeg"); +    QFileInfo ffmpegPath("@ffmpeg@/bin/ffmpeg"); setReadChannel(QProcess::StandardError); LOG_DEBUG() << ffmpegPath.absoluteFilePath() + " " + m_args.join(' '); AbstractJob::start(ffmpegPath.absoluteFilePath(), m_args); diff --git a/src/jobs/meltjob.cpp b/src/jobs/meltjob.cpp index fd8c00b8..9150fe7b 100644 --- a/src/jobs/meltjob.cpp +++ b/src/jobs/meltjob.cpp @@ -98,9 +98,9 @@ void MeltJob::start() } QString shotcutPath = qApp->applicationDirPath(); #if defined(Q_OS_UNIX) && !defined(Q_OS_MAC) -    QFileInfo meltPath(shotcutPath, "melt-7"); +    QFileInfo meltPath("@mlt@/bin/melt"); #else -    QFileInfo meltPath(shotcutPath, "melt"); +    QFileInfo meltPath("@mlt@/bin/melt"); #endif setReadChannel(QProcess::StandardError); QStringList args; diff --git a/src/mltcontroller.cpp b/src/mltcontroller.cpp index 1e2299ac..b8f39f12 100644 --- a/src/mltcontroller.cpp +++ b/src/mltcontroller.cpp @@ -1555,9 +1555,9 @@ int Controller::checkFile(const QString &path) || path.endsWith(".aep")) { QString shotcutPath = qApp->applicationDirPath(); #if defined(Q_OS_UNIX) && !defined(Q_OS_MAC) -        QFileInfo meltPath(shotcutPath, "melt-7"); +        QFileInfo meltPath("@mlt@/bin/melt"); #else -        QFileInfo meltPath(shotcutPath, "melt"); +        QFileInfo meltPath("@mlt@/bin/melt"); #endif QStringList args; args << "-quiet" << "-consumer" << "null" << "real_time=0" << "out=0" << "terminate_on_pause=1" << diff --git a/src/widgets/directshowvideowidget.cpp b/src/widgets/directshowvideowidget.cpp index c91ba821..73dd5a61 100644 --- a/src/widgets/directshowvideowidget.cpp +++ b/src/widgets/directshowvideowidget.cpp @@ -35,7 +35,7 @@ DirectShowVideoWidget::DirectShowVideoWidget(QWidget *parent) : ui->setupUi(this); Util::setColorsToHighlight(ui->label); #ifdef Q_OS_WIN -    QFileInfo ffmpegPath(qApp->applicationDirPath(), "ffmpeg"); +    QFileInfo ffmpegPath("@ffmpeg@/bin/ffmpeg"); QProcess proc; QStringList args; args << "-hide_banner" << "-list_devices" << "true" << "-f" << "dshow" << "-i" << "dummy"; </del>

Discussion:
Shotcut cannot start Steps to reproduce the behavior: Get error message Shotcut works <!-- Please @ people who are in the list of the offending package or module. If in doubt, check for whoever last touched something. --- system: host os: multi-user?: sandbox: version: nixpkgs:
I cannot reproduce it for now, my system is system: host os: multi-user?: sandbox: version: channels(root): nixpkgs: Do you have anything qt related installed in your profile? Maybe there is even interaction with qt applications installed system-wide, if their version is different from 6.6.2. I guess we have to backport this shotcut/mlt version to nixos-23.11 to avoid this.
Thx for fast answer. Nope. I've tried to delete all other possible qt related apps, same result. I am running on sway. Is there a way i can help you to debug this issue?
I've tried to backport shotcut and mlt from unstable to 23.11 branch. Build succeeded but I am having the same error message if I am trying to run shotcut. Have no clue how to find that is wrong...
found it. It seems that it's just a missing qtwayland dependency. Works now. Anyway strange message from qt
could you provide a pull request to fix wayland support for shotcut? just adding qtwayland? (I have no wayland here.)