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/***************************************************************************
krender.cpp - description
-------------------
begin : Fri Nov 22 2002
copyright : (C) 2002 by Jason Wood
email : jasonwood@blueyonder.co.uk
copyright : (C) 2005 Lcio Fl�io Corr�
email : lucio.correa@gmail.com
copyright : (C) Marco Gittler
email : g.marco@freenet.de
***************************************************************************/
/***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "kthumb.h"
#include "clipmanager.h"
#include "renderer.h"
#include "kdenlivesettings.h"
#include <mlt++/Mlt.h>
#include <kio/netaccess.h>
#include <kdebug.h>
#include <klocale.h>
#include <kfileitem.h>
#include <kmessagebox.h>
#include <KStandardDirs>
#include <qxml.h>
#include <QImage>
#include <QApplication>
#include <QtConcurrentRun>
#include <QVarLengthArray>
KThumb::KThumb(ClipManager *clipManager, KUrl url, const QString &id, const QString &hash, QObject * parent, const char */*name*/) :
QObject(parent),
m_audioThumbProducer(),
m_url(url),
m_thumbFile(),
m_dar(1),
m_producer(NULL),
m_clipManager(clipManager),
m_id(id),
m_stopAudioThumbs(false)
{
m_thumbFile = clipManager->projectFolder() + "/thumbs/" + hash + ".thumb";
}
KThumb::~KThumb()
{
m_requestedThumbs.clear();
if (m_audioThumbProducer.isRunning()) {
m_stopAudioThumbs = true;
m_audioThumbProducer.waitForFinished();
slotAudioThumbOver();
}
m_future.waitForFinished();
}
void KThumb::setProducer(Mlt::Producer *producer)
{
m_requestedThumbs.clear();
m_future.waitForFinished();
m_producer = producer;
// FIXME: the profile() call leaks an object, but trying to free
// it leads to a double-free in Profile::~Profile()
m_dar = producer->profile()->dar();
}
void KThumb::clearProducer()
{
m_producer = NULL;
}
bool KThumb::hasProducer() const
{
return m_producer != NULL;
}
void KThumb::updateThumbUrl(const QString &hash)
{
m_thumbFile = m_clipManager->projectFolder() + "/thumbs/" + hash + ".thumb";
}
void KThumb::updateClipUrl(KUrl url, const QString &hash)
{
m_url = url;
if (m_producer)
m_producer->set("resource", url.path().toUtf8().constData());
m_thumbFile = m_clipManager->projectFolder() + "/thumbs/" + hash + ".thumb";
}
//static
QPixmap KThumb::getImage(KUrl url, int width, int height)
{
if (url.isEmpty()) return QPixmap();
return getImage(url, 0, width, height);
}
void KThumb::extractImage(int frame, int frame2)
{
if (!KdenliveSettings::videothumbnails() || m_producer == NULL) return;
if (frame != -1 && !m_requestedThumbs.contains(frame)) m_requestedThumbs.append(frame);
if (frame2 != -1 && !m_requestedThumbs.contains(frame2)) m_requestedThumbs.append(frame2);
if (!m_future.isRunning()) m_future = QtConcurrent::run(this, &KThumb::doGetThumbs);
}
void KThumb::doGetThumbs()
{
const int theight = KdenliveSettings::trackheight();
const int twidth = FRAME_SIZE;//(int)(theight * m_dar + 0.5);
while (!m_requestedThumbs.isEmpty()) {
int frame = m_requestedThumbs.takeFirst();
if (frame != -1) {
QImage img = getFrame(m_producer, frame, twidth, theight);
emit thumbReady(frame, img);
}
}
}
QPixmap KThumb::extractImage(int frame, int width, int height)
{
return QPixmap::fromImage(getFrame(m_producer, frame, width, height));
}
//static
QPixmap KThumb::getImage(KUrl url, int frame, int width, int height)
{
Mlt::Profile profile(KdenliveSettings::current_profile().toUtf8().constData());
QPixmap pix(width, height);
if (url.isEmpty()) return pix;
//"<mlt><playlist><producer resource=\"" + url.path() + "\" /></playlist></mlt>");
//Mlt::Producer producer(profile, "xml-string", tmp);
Mlt::Producer *producer = new Mlt::Producer(profile, url.path().toUtf8().constData());
pix = QPixmap::fromImage(getFrame(producer, frame, width, height));
delete producer;
return pix;
}
//static
QImage KThumb::getFrame(Mlt::Producer *producer, int framepos, int width, int height)
{
QImage p(width, height, QImage::Format_ARGB32_Premultiplied);
if (producer == NULL || !producer->is_valid()) {
p.fill(Qt::red);
return p;
}
if (producer->is_blank()) {
p.fill(Qt::black);
return p;
}
producer->seek(framepos);
Mlt::Frame *frame = producer->get_frame();
if (!frame) {
kDebug() << "///// BROKEN FRAME";
p.fill(Qt::red);
return p;
}
/*Mlt::Producer parentProd(producer->parent());
Mlt::Service service(parentProd.get_service());
mlt_service_lock(service.get_service());*/
int ow = width;
int oh = height;
mlt_image_format format = mlt_image_rgb24a;
uint8_t *data = frame->get_image(format, ow, oh, 0);
QImage image((uchar *)data, ow, oh, QImage::Format_ARGB32_Premultiplied);
//mlt_service_unlock(service.get_service());
if (!image.isNull()) {
if (ow > (2 * width)) {
// there was a scaling problem, do it manually
QImage scaled = image.scaled(width, height);
p = scaled.rgbSwapped();
} else p = image.rgbSwapped();
} else
p.fill(Qt::red);
delete frame;
return p;
}
//static
uint KThumb::imageVariance(QImage image )
{
uint delta = 0;
uint avg = 0;
uint bytes = image.numBytes();
uint STEPS = bytes/2;
QVarLengthArray<uchar> pivot(STEPS);
const uchar *bits=image.bits();
// First pass: get pivots and taking average
for( uint i=0; i<STEPS ; i++ ){
pivot[i] = bits[2 * i];
#if QT_VERSION >= 0x040700
avg+=pivot.at(i);
#else
avg+=pivot[i];
#endif
}
avg=avg/STEPS;
// Second Step: calculate delta (average?)
for (uint i=0; i<STEPS; i++)
{
#if QT_VERSION >= 0x040700
int curdelta=abs(int(avg - pivot.at(i)));
#else
int curdelta=abs(int(avg - pivot[i]));
#endif
delta+=curdelta;
}
return delta/STEPS;
}
/*
void KThumb::getImage(KUrl url, int frame, int width, int height)
{
if (url.isEmpty()) return;
QPixmap image(width, height);
Mlt::Producer m_producer(url.path().toUtf8().constData());
image.fill(Qt::black);
if (m_producer.is_blank()) {
emit thumbReady(frame, image);
return;
}
Mlt::Filter m_convert("avcolour_space");
m_convert.set("forced", mlt_image_rgb24a);
m_producer.attach(m_convert);
m_producer.seek(frame);
Mlt::Frame * m_frame = m_producer.get_frame();
mlt_image_format format = mlt_image_rgb24a;
width = width - 2;
height = height - 2;
if (m_frame && m_frame->is_valid()) {
uint8_t *thumb = m_frame->get_image(format, width, height);
QImage tmpimage(thumb, width, height, 32, NULL, 0, QImage::IgnoreEndian);
if (!tmpimage.isNull()) bitBlt(&image, 1, 1, &tmpimage, 0, 0, width + 2, height + 2);
}
if (m_frame) delete m_frame;
emit thumbReady(frame, image);
}
void KThumb::getThumbs(KUrl url, int startframe, int endframe, int width, int height)
{
if (url.isEmpty()) return;
QPixmap image(width, height);
Mlt::Producer m_producer(url.path().toUtf8().constData());
image.fill(Qt::black);
if (m_producer.is_blank()) {
emit thumbReady(startframe, image);
emit thumbReady(endframe, image);
return;
}
Mlt::Filter m_convert("avcolour_space");
m_convert.set("forced", mlt_image_rgb24a);
m_producer.attach(m_convert);
m_producer.seek(startframe);
Mlt::Frame * m_frame = m_producer.get_frame();
mlt_image_format format = mlt_image_rgb24a;
width = width - 2;
height = height - 2;
if (m_frame && m_frame->is_valid()) {
uint8_t *thumb = m_frame->get_image(format, width, height);
QImage tmpimage(thumb, width, height, 32, NULL, 0, QImage::IgnoreEndian);
if (!tmpimage.isNull()) bitBlt(&image, 1, 1, &tmpimage, 0, 0, width - 2, height - 2);
}
if (m_frame) delete m_frame;
emit thumbReady(startframe, image);
image.fill(Qt::black);
m_producer.seek(endframe);
m_frame = m_producer.get_frame();
if (m_frame && m_frame->is_valid()) {
uint8_t *thumb = m_frame->get_image(format, width, height);
QImage tmpimage(thumb, width, height, 32, NULL, 0, QImage::IgnoreEndian);
if (!tmpimage.isNull()) bitBlt(&image, 1, 1, &tmpimage, 0, 0, width - 2, height - 2);
}
if (m_frame) delete m_frame;
emit thumbReady(endframe, image);
}
*/
void KThumb::stopAudioThumbs()
{
if (m_audioThumbProducer.isRunning()) {
m_stopAudioThumbs = true;
m_audioThumbProducer.waitForFinished();
slotAudioThumbOver();
}
}
void KThumb::removeAudioThumb()
{
if (m_thumbFile.isEmpty()) return;
stopAudioThumbs();
QFile f(m_thumbFile);
f.remove();
}
void KThumb::getAudioThumbs(int channel, double frame, double frameLength, int arrayWidth)
{
if (channel == 0) {
slotAudioThumbOver();
return;
}
if (m_audioThumbProducer.isRunning()) {
return;
}
QMap <int, QMap <int, QByteArray> > storeIn;
//FIXME: Hardcoded!!!
m_frequency = 48000;
m_channels = channel;
QFile f(m_thumbFile);
if (f.open(QIODevice::ReadOnly)) {
const QByteArray channelarray = f.readAll();
f.close();
if (channelarray.size() != arrayWidth*(frame + frameLength)*m_channels) {
kDebug() << "--- BROKEN THUMB FOR: " << m_url.fileName() << " ---------------------- " << endl;
f.remove();
slotAudioThumbOver();
return;
}
kDebug() << "reading audio thumbs from file";
int h1 = arrayWidth * m_channels;
int h2 = (int) frame * h1;
int h3;
for (int z = (int) frame; z < (int)(frame + frameLength); z++) {
h3 = 0;
for (int c = 0; c < m_channels; c++) {
QByteArray m_array(arrayWidth, '\x00');
for (int i = 0; i < arrayWidth; i++) {
m_array[i] = channelarray.at(h2 + h3 + i);
}
h3 += arrayWidth;
storeIn[z][c] = m_array;
}
h2 += h1;
}
emit audioThumbReady(storeIn);
slotAudioThumbOver();
} else {
if (m_audioThumbProducer.isRunning()) return;
m_audioThumbFile.setFileName(m_thumbFile);
m_frame = frame;
m_frameLength = frameLength;
m_arrayWidth = arrayWidth;
m_audioThumbProducer = QtConcurrent::run(this, &KThumb::slotCreateAudioThumbs);
/*m_audioThumbProducer.init(m_url, m_thumbFile, frame, frameLength, m_frequency, m_channels, arrayWidth);
m_audioThumbProducer.start(QThread::LowestPriority);*/
// kDebug() << "STARTING GENERATE THMB FOR: " <<m_id<<", URL: "<< m_url << " ................................";
}
}
void KThumb::slotCreateAudioThumbs()
{
Mlt::Profile prof((char*) KdenliveSettings::current_profile().toUtf8().data());
Mlt::Producer m_producer(prof, m_url.path().toUtf8().data());
if (!m_producer.is_valid()) {
kDebug() << "++++++++ INVALID CLIP: " << m_url.path();
return;
}
if (!m_audioThumbFile.open(QIODevice::WriteOnly)) {
kDebug() << "++++++++ ERROR WRITING TO FILE: " << m_audioThumbFile.fileName();
kDebug() << "++++++++ DISABLING AUDIO THUMBS";
KdenliveSettings::setAudiothumbnails(false);
return;
}
if (KdenliveSettings::normaliseaudiothumbs()) {
Mlt::Filter m_convert(prof, "volume");
m_convert.set("gain", "normalise");
m_producer.attach(m_convert);
}
int last_val = 0;
int val = 0;
//kDebug() << "for " << m_frame << " " << m_frameLength << " " << m_producer.is_valid();
for (int z = (int) m_frame; z < (int)(m_frame + m_frameLength) && m_producer.is_valid(); z++) {
if (m_stopAudioThumbs) break;
val = (int)((z - m_frame) / (m_frame + m_frameLength) * 100.0);
if (last_val != val && val > 1) {
m_clipManager->setThumbsProgress(i18n("Creating thumbnail for %1", m_url.fileName()), val);
last_val = val;
}
m_producer.seek(z);
Mlt::Frame *mlt_frame = m_producer.get_frame();
if (mlt_frame && mlt_frame->is_valid()) {
double m_framesPerSecond = mlt_producer_get_fps(m_producer.get_producer());
int m_samples = mlt_sample_calculator(m_framesPerSecond, m_frequency, mlt_frame_get_position(mlt_frame->get_frame()));
mlt_audio_format m_audioFormat = mlt_audio_pcm;
qint16* m_pcm = static_cast<qint16*>(mlt_frame->get_audio(m_audioFormat, m_frequency, m_channels, m_samples));
for (int c = 0; c < m_channels; c++) {
QByteArray m_array;
m_array.resize(m_arrayWidth);
for (int i = 0; i < m_array.size(); i++) {
m_array[i] = ((*(m_pcm + c + i * m_samples / m_array.size())) >> 9) + 127 / 2 ;
}
m_audioThumbFile.write(m_array);
}
} else {
m_audioThumbFile.write(QByteArray(m_arrayWidth, '\x00'));
}
delete mlt_frame;
}
m_audioThumbFile.close();
if (m_stopAudioThumbs) {
m_audioThumbFile.remove();
} else {
slotAudioThumbOver();
}
}
void KThumb::slotAudioThumbOver()
{
m_clipManager->setThumbsProgress(i18n("Creating thumbnail for %1", m_url.fileName()), -1);
m_clipManager->endAudioThumbsGeneration(m_id);
}
void KThumb::askForAudioThumbs(const QString &id)
{
m_clipManager->askForAudioThumb(id);
}
#include "kthumb.moc"