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mltcontroller.cpp
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mltcontroller.cpp
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/*
* Copyright (c) 2011-2022 Meltytech, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mltcontroller.h"
#include <QWidget>
#include <QPalette>
#include <QMetaType>
#include <QFileInfo>
#include <QUuid>
#include <QSaveFile>
#include <QTextStream>
#include <QThreadPool>
#include <Logger.h>
#include <Mlt.h>
#include <cmath>
#include <clocale>
#include <unistd.h>
#include "glwidget.h"
#include "settings.h"
#include "shotcut_mlt_properties.h"
#include "mainwindow.h"
#include "controllers/filtercontroller.h"
#include "qmltypes/qmlmetadata.h"
#include "util.h"
#include "proxymanager.h"
namespace Mlt {
static const int kThumbnailOutSeekFactor = 5;
static Controller* instance = nullptr;
const QString XmlMimeType("application/vnd.mlt+xml");
static const char* kMltXmlPropertyName = "string";
Controller::Controller()
: m_profile(kDefaultMltProfile)
, m_previewProfile(kDefaultMltProfile)
, m_blockRefresh(false)
{
LOG_DEBUG() << "begin";
m_repo = Mlt::Factory::init();
resetLocale();
initFiltersClipboard();
updateAvformatCaching(0);
LOG_DEBUG() << "end";
}
Controller& Controller::singleton(QObject *parent)
{
if (!instance) {
qRegisterMetaType<Mlt::Frame>("Mlt::Frame");
qRegisterMetaType<SharedFrame>("SharedFrame");
instance = new GLWidget(parent);
}
return *instance;
}
Controller::~Controller()
{
LOG_DEBUG() << "begin";
close();
closeConsumer();
LOG_DEBUG() << "end";
}
void Controller::destroy()
{
delete instance;
}
int Controller::setProducer(Mlt::Producer* producer, bool)
{
int error = 0;
if (producer != m_producer.data())
close();
if (producer && producer->is_valid()) {
m_producer.reset(producer);
}
else {
// Cleanup on error
error = 1;
delete producer;
}
return error;
}
static bool isFpsDifferent(double a, double b)
{
return qAbs(a - b) > 0.001;
}
int Controller::open(const QString &url, const QString& urlToSave)
{
int error = 0;
Mlt::Producer* newProducer = nullptr;
close();
if (Settings.playerGPU() && !profile().is_explicit())
// Prevent loading normalizing filters, which might be Movit ones that
// may not have a proper OpenGL context when requesting a sample frame.
newProducer = new Mlt::Producer(profile(), "abnormal", url.toUtf8().constData());
else
newProducer = new Mlt::Producer(profile(), url.toUtf8().constData());
if (newProducer && newProducer->is_valid()) {
double fps = profile().fps();
if (!profile().is_explicit()) {
profile().from_producer(*newProducer);
profile().set_width(Util::coerceMultiple(profile().width()));
profile().set_height(Util::coerceMultiple(profile().height()));
}
updatePreviewProfile();
setPreviewScale(Settings.playerPreviewScale());
if ( url.endsWith(".mlt") ) {
// Load the number of audio channels being used when this project was created.
int channels = newProducer->get_int(kShotcutProjectAudioChannels);
if (!channels)
channels = 2;
m_audioChannels = channels;
if (newProducer->get_int(kShotcutProjectFolder)) {
QFileInfo info(url);
setProjectFolder(info.absolutePath());
ProxyManager::removePending();
} else {
setProjectFolder(QString());
}
}
if (isFpsDifferent(profile().fps(), fps) || (Settings.playerGPU() && !profile().is_explicit())) {
// Reload with correct FPS or with Movit normalizing filters attached.
delete newProducer;
newProducer = new Mlt::Producer(profile(), url.toUtf8().constData());
}
if (m_url.isEmpty() && QString(newProducer->get("xml")) == "was here") {
if (newProducer->get_int("_original_type") != mlt_service_tractor_type ||
(newProducer->get_int("_original_type") == mlt_service_tractor_type && newProducer->get(kShotcutXmlProperty)))
m_url = urlToSave;
}
Producer* producer = setupNewProducer(newProducer);
delete newProducer;
newProducer = producer;
}
else {
delete newProducer;
newProducer = nullptr;
error = 1;
}
m_producer.reset(newProducer);
return error;
}
bool Controller::openXML(const QString &filename)
{
bool error = true;
close();
Producer* producer = new Mlt::Producer(profile(), "xml", filename.toUtf8().constData());
if (producer->is_valid()) {
double fps = profile().fps();
if (!profile().is_explicit()) {
profile().from_producer(*producer);
profile().set_width(Util::coerceMultiple(profile().width()));
profile().set_height(Util::coerceMultiple(profile().height()));
}
updatePreviewProfile();
setPreviewScale(Settings.playerPreviewScale());
if (isFpsDifferent(profile().fps(), fps)) {
// reopen with the correct fps
delete producer;
producer = new Mlt::Producer(profile(), "xml", filename.toUtf8().constData());
}
producer->set(kShotcutVirtualClip, 1);
producer->set("resource", filename.toUtf8().constData());
setProducer(new Producer(producer));
error = false;
}
delete producer;
return error;
}
void Controller::close()
{
if (m_profile.is_explicit()) {
pause();
} else if (m_consumer && !m_consumer->is_stopped()) {
m_consumer->stop();
}
if (isSeekableClip()) {
setSavedProducer(m_producer.data());
}
m_producer.reset();
}
void Controller::closeConsumer()
{
if (m_consumer)
m_consumer->stop();
m_consumer.reset();
m_jackFilter.reset();
}
void Controller::play(double speed)
{
if (m_jackFilter) {
if (speed == 1.0)
m_jackFilter->fire_event("jack-start");
else
stopJack();
}
if (m_producer)
m_producer->set_speed(speed);
if (m_consumer) {
m_consumer->start();
refreshConsumer(Settings.playerScrubAudio());
}
setVolume(m_volume);
}
bool Controller::isPaused() const
{
return m_producer && qAbs(m_producer->get_speed()) < 0.1;
}
static void fire_jack_seek_event(mlt_properties jack, int position)
{
mlt_events_fire(jack, "jack-seek", mlt_event_data_from_int(position));
}
void Controller::pause()
{
if (m_producer && !isPaused()) {
m_producer->set_speed(0);
if (m_consumer && m_consumer->is_valid()) {
m_producer->seek(m_consumer->position() + 1);
m_consumer->purge();
m_consumer->start();
// The following fixes a bug with frame-dropping. It is possible a video frame rendering
// was just dropped. Then, Shotcut does not know the latest position. Next, a filter modifies
// a value, which refreshes the consumer, and the position advances. If that value change
// creates a keyframe, then a subsequent value change creates an additional keyframe one
// (or more?) frames after the previous one.
// https://forum.shotcut.org/t/2-keyframes-created-instead-of-one/11252
if (m_consumer->get_int("real_time") > 0)
refreshConsumer();
}
}
if (m_jackFilter) {
stopJack();
int position = (m_producer && m_producer->is_valid())? m_producer->position() : 0;
++m_skipJackEvents;
fire_jack_seek_event(m_jackFilter->get_properties(), position);
}
setVolume(m_volume);
}
void Controller::stop()
{
if (m_consumer && !m_consumer->is_stopped())
m_consumer->stop();
if (m_producer)
m_producer->seek(0);
stopJack();
}
void Controller::on_jack_started(mlt_properties, void* object, mlt_event_data data)
{
if (object)
(static_cast<Controller*>(object))->onJackStarted(Mlt::EventData(data).to_int());
}
void Controller::onJackStarted(int position)
{
if (m_producer) {
m_producer->set_speed(1);
m_producer->seek(position);
Controller::refreshConsumer();
}
}
void Controller::on_jack_stopped(mlt_properties, void* object, mlt_event_data data)
{
if (object)
(static_cast<Controller*>(object))->onJackStopped(EventData(data).to_int());
}
void Controller::onJackStopped(int position)
{
if (m_skipJackEvents) {
--m_skipJackEvents;
} else {
if (m_producer) {
if (!isPaused()) {
Event *event = m_consumer->setup_wait_for("consumer-sdl-paused");
int result = m_producer->set_speed(0);
if (result == 0 && m_consumer->is_valid() && !m_consumer->is_stopped())
m_consumer->wait_for(event);
delete event;
}
m_producer->seek(position);
}
if (m_consumer && m_consumer->get_int("real_time") >= -1)
m_consumer->purge();
refreshConsumer();
}
}
void Controller::stopJack()
{
if (m_jackFilter) {
m_skipJackEvents = 2;
m_jackFilter->fire_event("jack-stop");
}
}
void Controller::initFiltersClipboard()
{
m_filtersClipboard.reset(new Mlt::Producer(profile(), "color", "black"));
if (m_filtersClipboard->is_valid()) {
m_filtersClipboard->set(kShotcutFiltersClipboard, 1);
}
}
bool Controller::enableJack(bool enable)
{
if (!m_consumer)
return true;
if (enable && !m_jackFilter) {
m_jackFilter.reset(new Mlt::Filter(profile(), "jack", "Shotcut player"));
if (m_jackFilter->is_valid()) {
m_jackFilter->set("channels", Settings.playerAudioChannels());
switch (Settings.playerAudioChannels()) {
case 8:
m_jackFilter->set("in_8", "-");
m_jackFilter->set("out_8", "system:playback_8");
Q_FALLTHROUGH();
case 7:
m_jackFilter->set("in_7", "-");
m_jackFilter->set("out_7", "system:playback_7");
Q_FALLTHROUGH();
case 6:
m_jackFilter->set("in_6", "-");
m_jackFilter->set("out_6", "system:playback_6");
Q_FALLTHROUGH();
case 5:
m_jackFilter->set("in_5", "-");
m_jackFilter->set("out_5", "system:playback_5");
Q_FALLTHROUGH();
case 4:
m_jackFilter->set("in_4", "-");
m_jackFilter->set("out_4", "system:playback_4");
Q_FALLTHROUGH();
case 3:
m_jackFilter->set("in_3", "-");
m_jackFilter->set("out_3", "system:playback_3");
Q_FALLTHROUGH();
case 2:
m_jackFilter->set("in_2", "-");
m_jackFilter->set("out_2", "system:playback_2");
Q_FALLTHROUGH();
case 1:
m_jackFilter->set("in_1", "-");
m_jackFilter->set("out_1", "system:playback_1");
Q_FALLTHROUGH();
default:
break;
}
m_consumer->attach(*m_jackFilter);
m_consumer->set("audio_off", 1);
if (isSeekable()) {
m_jackFilter->listen("jack-started", this, reinterpret_cast<mlt_listener>(on_jack_started));
m_jackFilter->listen("jack-stopped", this, reinterpret_cast<mlt_listener>(on_jack_stopped));
}
}
else {
m_jackFilter.reset();
return false;
}
}
else if (!enable && m_jackFilter) {
m_consumer->detach(*m_jackFilter);
m_jackFilter.reset();
m_consumer->set("audio_off", 0);
m_consumer->stop();
m_consumer->start();
}
return true;
}
void Controller::setVolume(double volume, bool muteOnPause)
{
m_volume = volume;
// Keep the consumer muted when paused
if (muteOnPause && isPaused()) {
volume = 0.0;
}
if (m_consumer) {
if (m_consumer->get("mlt_service") == QString("multi")) {
m_consumer->set("0.volume", volume);
} else {
m_consumer->set("volume", volume);
}
}
}
double Controller::volume() const
{
return m_volume;
}
void Controller::onWindowResize()
{
bool scrub = isPaused() ? false : Settings.playerScrubAudio();
refreshConsumer(scrub);
}
void Controller::seek(int position)
{
setVolume(m_volume, false);
if (m_producer) {
// Always pause before seeking (if not already paused).
m_producer->set_speed(0);
m_producer->seek(position);
if (m_consumer && m_consumer->is_valid()) {
if (m_consumer->is_stopped()) {
m_consumer->start();
} else {
m_consumer->purge();
Controller::refreshConsumer(Settings.playerScrubAudio());
}
}
}
if (m_jackFilter) {
stopJack();
++m_skipJackEvents;
fire_jack_seek_event(m_jackFilter->get_properties(), position);
}
}
void Controller::refreshConsumer(bool scrubAudio)
{
if (!m_blockRefresh && m_consumer) {
// need to refresh consumer when paused
m_consumer->set("scrub_audio", scrubAudio);
m_consumer->set("refresh", 1);
}
}
bool Controller::saveXML(const QString& filename, Service* service, bool withRelativePaths,
QTemporaryFile* tempFile, bool proxy, QString projectNote)
{
QMutexLocker locker(&m_saveXmlMutex);
QFileInfo fi(filename);
Consumer c(profile(), "xml", proxy? filename.toUtf8().constData() : kMltXmlPropertyName);
Service s(service? service->get_service() : m_producer->get_service());
if (s.is_valid()) {
// The Shotcut rule for paths in MLT XML is forward slashes as created by QFileDialog and QmlFile.
QString root = withRelativePaths? QDir::fromNativeSeparators(fi.absolutePath()) : "";
s.set(kShotcutProjectAudioChannels, m_audioChannels);
s.set(kShotcutProjectFolder, m_projectFolder.isEmpty()? 0 : 1);
if (!projectNote.isEmpty()) {
s.set(kShotcutProjectNote, projectNote.toUtf8().constData());
}
int ignore = s.get_int("ignore_points");
if (ignore)
s.set("ignore_points", 0);
c.set("time_format", "clock");
c.set("no_meta", 1);
c.set("store", "shotcut");
c.set("root", root.toUtf8().constData());
c.set("no_root", 1);
c.set("title", QString("Shotcut version ").append(SHOTCUT_VERSION).toUtf8().constData());
c.connect(s);
c.start();
if (ignore)
s.set("ignore_points", ignore);
auto xml = QString::fromUtf8(c.get(kMltXmlPropertyName));
if (!proxy && ProxyManager::filterXML(xml, root)) { // also verifies
if (tempFile) {
QTextStream stream(tempFile);
stream.setCodec("UTF-8");
stream << xml;
if (tempFile->error() != QFileDevice::NoError) {
LOG_ERROR() << "error while writing MLT XML file" << tempFile->fileName() << ":" << tempFile->errorString();
return false;
}
} else {
QSaveFile file(filename);
file.setDirectWriteFallback(true);
if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
LOG_ERROR() << "failed to open MLT XML file for writing" << filename;
return false;
}
QTextStream stream(&file);
stream.setCodec("UTF-8");
stream << xml;
if (file.error() != QFileDevice::NoError) {
LOG_ERROR() << "error while writing MLT XML file" << filename << ":" << file.errorString();
return false;
}
return file.commit();
}
}
}
return false;
}
QString Controller::XML(Service* service, bool withProfile, bool withMetadata)
{
Consumer c(profile(), "xml", kMltXmlPropertyName);
Service s(service? service->get_service() : (m_producer && m_producer->is_valid())? m_producer->get_service() : nullptr);
if (!s.is_valid())
return "";
int ignore = s.get_int("ignore_points");
if (ignore)
s.set("ignore_points", 0);
c.set("time_format", "clock");
if (!withMetadata)
c.set("no_meta", 1);
c.set("no_profile", !withProfile);
c.set("store", "shotcut");
c.set("root", "");
c.connect(s);
c.start();
if (ignore)
s.set("ignore_points", ignore);
return QString::fromUtf8(c.get(kMltXmlPropertyName));
}
int Controller::consumerChanged()
{
int error = 0;
if (m_consumer) {
bool jackEnabled = !m_jackFilter.isNull();
m_consumer->stop();
m_consumer.reset();
m_jackFilter.reset();
error = reconfigure(false);
if (m_consumer) {
enableJack(jackEnabled);
setVolume(m_volume);
m_consumer->start();
}
}
return error;
}
void Controller::setProfile(const QString& profile_name)
{
LOG_DEBUG() << "setting to profile" << (profile_name.isEmpty()? "Automatic" : profile_name);
if (!profile_name.isEmpty()) {
Mlt::Profile tmp(profile_name.toUtf8().constData());
m_profile.set_colorspace(tmp.colorspace());
m_profile.set_frame_rate(tmp.frame_rate_num(), tmp.frame_rate_den());
m_profile.set_height(Util::coerceMultiple(tmp.height()));
m_profile.set_progressive(tmp.progressive());
m_profile.set_sample_aspect(tmp.sample_aspect_num(), tmp.sample_aspect_den());
m_profile.set_display_aspect(tmp.display_aspect_num(), tmp.display_aspect_den());
m_profile.set_width(Util::coerceMultiple(tmp.width()));
m_profile.set_explicit(true);
} else {
m_profile.set_explicit(false);
if (m_producer && m_producer->is_valid()
&& (qstrcmp(m_producer->get("mlt_service"), "color") || qstrcmp(m_producer->get("resource"), "_hide"))) {
m_profile.from_producer(*m_producer);
m_profile.set_width(Util::coerceMultiple(m_profile.width()));
} else {
// Use a default profile with the dummy hidden color producer.
Mlt::Profile tmp(kDefaultMltProfile);
m_profile.set_colorspace(tmp.colorspace());
m_profile.set_frame_rate(tmp.frame_rate_num(), tmp.frame_rate_den());
m_profile.set_height(Util::coerceMultiple(tmp.height()));
m_profile.set_progressive(tmp.progressive());
m_profile.set_sample_aspect(tmp.sample_aspect_num(), tmp.sample_aspect_den());
m_profile.set_display_aspect(tmp.display_aspect_num(), tmp.display_aspect_den());
m_profile.set_width(Util::coerceMultiple(tmp.width()));
}
}
updatePreviewProfile();
}
void Controller::setAudioChannels(int audioChannels)
{
LOG_DEBUG() << audioChannels;
if (audioChannels != m_audioChannels) {
m_audioChannels = audioChannels;
restart();
}
}
QString Controller::resource() const
{
QString resource;
if (!m_producer)
return resource;
resource = QString::fromUtf8(m_producer->get("resource"));
return resource;
}
bool Controller::isSeekable(Producer* p) const
{
bool seekable = false;
Mlt::Producer* producer = p? p : m_producer.data();
if (producer && producer->is_valid()) {
if (producer->get("force_seekable")) {
seekable = producer->get_int("force_seekable");
} else {
seekable = producer->get_int("seekable");
if (!seekable && producer->get("mlt_type")) {
// XXX what was this for?
seekable = !strcmp(producer->get("mlt_type"), "mlt_producer");
}
if (!seekable) {
// These generators can take an out point to define their length.
// TODO: Currently, these max out at 15000 frames, which is arbitrary.
QString service(producer->get("mlt_service"));
seekable = (service == "color") || service.startsWith("frei0r.") || (service =="tone") || (service =="count") || (service =="noise");
}
}
}
return seekable;
}
bool Controller::isClip() const
{
return producer() && producer()->is_valid() && !isPlaylist() && !isMultitrack();
}
bool Controller::isSeekableClip()
{
return isClip() && isSeekable();
}
bool Controller::isPlaylist() const
{
return m_producer && m_producer->is_valid() &&
!m_producer->get_int(kShotcutVirtualClip) &&
(m_producer->get_int("_original_type") == mlt_service_playlist_type || resource() == "<playlist>");
}
bool Controller::isMultitrack() const
{
return m_producer && m_producer->is_valid()
&& !m_producer->get_int(kShotcutVirtualClip)
&& (m_producer->get_int("_original_type") == mlt_service_tractor_type || resource() == "<tractor>")
&& (m_producer->get(kShotcutXmlProperty));
}
bool Controller::isImageProducer(Service* service) const
{
if (service && service->is_valid()) {
QString serviceName = service->get("mlt_service");
return (serviceName == "pixbuf" || serviceName == "qimage");
}
return false;
}
bool Controller::isFileProducer(Service* service) const
{
if (service && service->is_valid()) {
QString serviceName = service->get("mlt_service");
return (serviceName == "pixbuf" ||
serviceName == "qimage" ||
serviceName.startsWith("avformat") ||
serviceName.startsWith("timewarp"));
}
return false;
}
void Controller::rewind(bool forceChangeDirection)
{
if (!m_producer || !m_producer->is_valid())
return;
// Starting the consumer when producer at its end fails. So, first seek to
// frame before last.
if (m_producer->position() >= m_producer->get_length() - 1)
m_producer->seek(m_producer->get_length() - 2);
double speed = m_producer->get_speed();
if (speed == 0.0) {
play(-1.0);
} else {
stopJack();
if (forceChangeDirection && speed > 0.0)
speed = -0.5;
if (speed < 0.0)
m_producer->set_speed(speed * 2.0);
else
m_producer->set_speed(::floor(speed * 0.5));
if (m_consumer && m_consumer->is_valid())
m_consumer->purge();
}
}
void Controller::fastForward(bool forceChangeDirection)
{
if (!m_producer || !m_producer->is_valid())
return;
double speed = m_producer->get_speed();
if (speed == 0.0) {
play(1.0);
} else {
stopJack();
if (forceChangeDirection && speed < 0.0)
speed = 0.5;
if (speed > 0.0)
m_producer->set_speed(speed * 2.0);
else
m_producer->set_speed(::ceil(speed * 0.5));
if (m_consumer && m_consumer->is_valid())
m_consumer->purge();
}
}
void Controller::previous(int currentPosition)
{
if (isMultitrack()) return;
if (currentPosition > m_producer->get_out())
seek(MLT.producer()->get_out());
else if (currentPosition <= m_producer->get_in())
seek(0);
else
seek(m_producer->get_in());
}
void Controller::next(int currentPosition)
{
if (isMultitrack()) return;
if (currentPosition < m_producer->get_in())
seek(m_producer->get_in());
else if (currentPosition >= m_producer->get_out())
seek(m_producer->get_length() - 1);
else
seek(m_producer->get_out());
}
void Controller::setIn(int in)
{
if (m_producer && m_producer->is_valid()) {
int delta = in - m_producer->get_in();
if (!delta) {
return;
}
adjustClipFilters(*m_producer, m_producer->get_in(), m_producer->get_out(), delta, 0);
m_producer->set("in", in);
Controller::refreshConsumer();
}
}
void Controller::setOut(int out)
{
if (m_producer && m_producer->is_valid()) {
int delta = out - m_producer->get_out();
if (!delta) {
return;
}
adjustClipFilters(*m_producer, m_producer->get_in(), m_producer->get_out(), 0, -delta);
m_producer->set("out", out);
Controller::refreshConsumer();
}
}
void Controller::restart(const QString& xml)
{
if (!m_consumer || !m_consumer->is_valid() || !m_producer || !m_producer->is_valid())
return;
const char* position = m_consumer->frames_to_time(m_consumer->position());
double speed = m_producer->get_speed();
QString loadXml = xml;
if (loadXml.isEmpty())
loadXml = XML();
stop();
if (!setProducer(new Mlt::Producer(profile(), "xml-string", loadXml.toUtf8().constData()))) {
if (m_producer && m_producer->is_valid())
m_producer->seek(position);
play(speed);
}
}
void Controller::resetURL()
{
m_url = QString();
}
QImage Controller::image(Mlt::Frame* frame, int width, int height)
{
QImage result;
if (frame && frame->is_valid()) {
if (width > 0 && height > 0) {
frame->set("rescale.interp", "bilinear");
frame->set("deinterlace_method", "onefield");
frame->set("top_field_first", -1);
}
mlt_image_format format = mlt_image_rgba;
const uchar *image = frame->get_image(format, width, height);
if (image) {
QImage temp(width, height, QImage::Format_ARGB32);
memcpy(temp.scanLine(0), image, size_t(width * height * 4));
result = temp.rgbSwapped();
}
} else {
result = QImage(width, height, QImage::Format_ARGB32);
result.fill(QColor(Qt::red).rgb());
}
return result;
}
QImage Controller::image(Producer& producer, int frameNumber, int width, int height)
{
QImage result;
if (frameNumber > producer.get_length() - kThumbnailOutSeekFactor) {
producer.seek(frameNumber - kThumbnailOutSeekFactor - 1);
for (int i = 0; i < kThumbnailOutSeekFactor; ++i) {
QScopedPointer<Mlt::Frame> frame(producer.get_frame());
QImage temp = image(frame.data(), width, height);
if (!temp.isNull())
result = temp;
}
} else {
producer.seek(frameNumber);
QScopedPointer<Mlt::Frame> frame(producer.get_frame());
result = image(frame.data(), width, height);
}
return result;
}
void Controller::updateAvformatCaching(int trackCount)
{
int i = QThreadPool::globalInstance()->maxThreadCount() + trackCount * 2;
mlt_service_cache_set_size(nullptr, "producer_avformat", qMax(4, i));
}
bool Controller::isAudioFilter(const QString &name)
{
QScopedPointer<Properties> metadata(m_repo->metadata(mlt_service_filter_type, name.toLatin1().constData()));
if (metadata->is_valid()) {
Properties tags(metadata->get_data("tags"));
if (tags.is_valid()) {
for (int j = 0; j < tags.count(); ++j) {
if (!qstricmp(tags.get(j), "Audio"))
return true;
}
}
}
return false;
}
int Controller::realTime() const
{
int realtime = 1;
if (!Settings.playerRealtime()) {
if (Settings.playerGPU()) {
return -1;
}
#if QT_POINTER_SIZE == 4
// Limit to 1 rendering thread on 32-bit process to reduce memory usage.
int threadCount = 1;
#else
int threadCount = QThread::idealThreadCount();
#endif
threadCount = threadCount > 2? qMin(threadCount - 1, 4) : 1;
realtime = -threadCount;
}
return realtime;
}
void Controller::setImageDurationFromDefault(Service* service) const
{
if (service && service->is_valid()) {
if (isImageProducer(service) && !service->get_int("shotcut_sequence")) {
service->set("ttl", 1);
service->set("length", service->frames_to_time(qRound(m_profile.fps() * kMaxImageDurationSecs), mlt_time_clock));
service->set("out", qRound(m_profile.fps() * Settings.imageDuration()) - 1);
}
}
}
void Controller::setDurationFromDefault(Producer* producer) const
{
if (producer && producer->is_valid()) {
int out = qRound(m_profile.fps() * Settings.imageDuration()) - 1;
if (out >= producer->get_length())
producer->set("length", producer->frames_to_time(out + 1, mlt_time_clock));
producer->set("length", producer->frames_to_time(qRound(m_profile.fps() * kMaxImageDurationSecs), mlt_time_clock));
producer->set("out", out);
}
}
void Controller::lockCreationTime(Producer* producer) const
{
// Apply the creation_time property on the producer so that it will persist
// through XML serialization/deserialization.
if (producer && producer->is_valid() && isFileProducer(producer)) {
int64_t creation_time = producer->get_creation_time();
if (creation_time != 0) {
producer->set_creation_time(creation_time);
}
}
}
Producer* Controller::setupNewProducer(Producer* newProducer) const
{
// Call this function before adding a new producer to Shotcut so that
// It will be configured correctly. The returned producer must be deleted.
QString serviceName = newProducer->get("mlt_service");
if (serviceName == "avformat")
{
// Convert avformat to avformat-novalidate so that XML loads faster.
newProducer->set("mlt_service", "avformat-novalidate");
}
setImageDurationFromDefault(newProducer);
lockCreationTime(newProducer);
newProducer->get_length_time(mlt_time_clock);
if (serviceName.startsWith("avformat"))
{
newProducer->set("mute_on_pause", 0);
// Encapsulate in a chain to enable timing effects
if (newProducer->type() != mlt_service_chain_type)
{
Mlt::Chain* chain = new Mlt::Chain(MLT.profile());
chain->set_source(*newProducer);
chain->get_length_time(mlt_time_clock);
// Move all non-loader filters to the chain in case this was a clip-only project.
int i = 0;
QScopedPointer<Mlt::Filter> filter(newProducer->filter(i));
while (filter && filter->is_valid()) {
if (!filter->get_int("_loader")) {
newProducer->detach(*filter);
chain->Service::attach(*filter);
} else {
++i;
}
filter.reset(newProducer->filter(i));
}
return chain;
}
}
return new Mlt::Producer(newProducer);
}
QUuid Controller::uuid(Mlt::Properties &properties) const
{
return {properties.get(kUuidProperty)};
}
void Controller::setUuid(Mlt::Properties &properties, QUuid uid) const
{
properties.set(kUuidProperty,
(uid.toByteArray() + '\n').data());
}
QUuid Controller::ensureHasUuid(Mlt::Properties& properties) const
{
if (properties.get(kUuidProperty)) {
return uuid(properties);
}
QUuid newUid = QUuid::createUuid();
setUuid(properties, newUid);
return newUid;
}
void Controller::copyFilters(Producer& fromProducer, Producer& toProducer, bool fromClipboard, bool includeDisabled)
{
int in = fromProducer.get(kFilterInProperty)? fromProducer.get_int(kFilterInProperty) : fromProducer.get_in();
int out = fromProducer.get(kFilterOutProperty)? fromProducer.get_int(kFilterOutProperty) : fromProducer.get_out();
int count = fromProducer.filter_count();
for (int i = 0; i < count; i++) {
QScopedPointer<Mlt::Filter> fromFilter(fromProducer.filter(i));
if (fromFilter && fromFilter->is_valid() && !fromFilter->get_int("_loader") && fromFilter->get("mlt_service")
&& (includeDisabled || !fromFilter->get_int("disable"))) {
Mlt::Filter toFilter(MLT.profile(), fromFilter->get("mlt_service"));
if (toFilter.is_valid()) {
toFilter.inherit(*fromFilter);
toProducer.attach(toFilter);
if (!fromClipboard) {
toFilter.set(kFilterInProperty, fromFilter->get_in() - in);
if (fromFilter->get_out() != out) {
toFilter.set(kFilterOutProperty, fromFilter->get_out() - fromFilter->get_in());
}
}
}