* *
***************************************************************************/
-#include <stdlib.h>
-#include <QTimer>
-#include <QDir>
-#include <QApplication>
+#include "renderer.h"
+#include "kdenlivesettings.h"
+#include "kthumb.h"
+#include "definitions.h"
+
+#include <mlt++/Mlt.h>
#include <KDebug>
#include <KStandardDirs>
#include <KLocale>
#include <KTemporaryFile>
-#include "renderer.h"
-#include "kdenlivesettings.h"
-#include "kthumb.h"
-#include "definitions.h"
-
-#include <mlt++/Mlt.h>
+#include <QTimer>
+#include <QDir>
+#include <QApplication>
+#include <stdlib.h>
static void consumer_frame_show(mlt_consumer, Render * self, mlt_frame frame_ptr) {
// detect if the producer has finished playing. Is there a better way to do it ?
return pix;
}
*/
-const int Render::renderWidth() const {
+int Render::renderWidth() const {
return (int)(m_mltProfile->height() * m_mltProfile->dar());
}
-const int Render::renderHeight() const {
+int Render::renderHeight() const {
return m_mltProfile->height();
}
filter << "*." + fileType;
filter << "*." + fileType.toUpper();
more = dir.entryList(filter, QDir::Files);
- im.load(url.directory() + "/" + more.at(0));
+ im.load(url.directory() + '/' + more.at(0));
} else im.load(url.path());
//pixmap = im.scaled(width, height);
return pixmap;
more = dir.entryList( QDir::Files );
for ( it = more.begin() ; it != more.end() ; ++it ) {
if ((*it).endsWith("."+fileType, Qt::CaseInsensitive)) {
- if (!im.load(url.directory() + "/" + *it))
- kDebug()<<"++ ERROR LOADIN IMAGE: "<<url.directory() + "/" + *it;
+ if (!im.load(url.directory() + '/' + *it))
+ kDebug()<<"++ ERROR LOADIN IMAGE: "<<url.directory() + '/' + *it;
break;
}
}
return true;
}
-const double Render::dar() const {
+double Render::dar() const {
return m_mltProfile->dar();
}
tmp = "0,50%:50%x50%";
break;
case 3:
+ default:
tmp = "50%,50%:50%x50%";
break;
}
}
void Render::getFileProperties(const QDomElement &xml, const QString &clipId, bool replaceProducer) {
- int height = 50;
- int width = (int)(height * m_mltProfile->dar());
- QMap < QString, QString > filePropertyMap;
- QMap < QString, QString > metadataPropertyMap;
-
- KUrl url = KUrl(xml.attribute("resource", QString::null));
+ KUrl url = KUrl(xml.attribute("resource", QString()));
Mlt::Producer *producer = NULL;
if (xml.attribute("type").toInt() == TEXT && !QFile::exists(url.path())) {
- emit replyGetFileProperties(clipId, producer, filePropertyMap, metadataPropertyMap, replaceProducer);
+ emit replyGetFileProperties(clipId, producer, QMap < QString, QString >(), QMap < QString, QString >(), replaceProducer);
return;
}
if (xml.attribute("type").toInt() == COLOR) {
producer = new Mlt::Producer(*m_mltProfile, "westley-xml", tmp);
delete[] tmp;
} else {
- QString urlpath = url.path();
- /*if (urlpath.contains(':')) {
- if (!urlpath.startsWith("file:")) urlpath.prepend("file:");
- char *tmp = decodedString(urlpath);
- producer = new Mlt::Producer(*m_mltProfile, "avformat", tmp);
- delete[] tmp;
- }
- else {*/
- char *tmp = decodedString(urlpath);
+ char *tmp = decodedString(url.path());
producer = new Mlt::Producer(*m_mltProfile, tmp);
delete[] tmp;
-
- if (xml.hasAttribute("force_aspect_ratio")) {
- double aspect = xml.attribute("force_aspect_ratio").toDouble();
- if (aspect > 0) producer->set("force_aspect_ratio", aspect);
- }
- if (xml.hasAttribute("threads")) {
- int threads = xml.attribute("threads").toInt();
- if (threads != 1) producer->set("threads", threads);
- }
- if (xml.hasAttribute("video_index")) {
- int vindex = xml.attribute("video_index").toInt();
- if (vindex != 0) producer->set("video_index", vindex);
- }
- if (xml.hasAttribute("audio_index")) {
- int aindex = xml.attribute("audio_index").toInt();
- if (aindex != 0) producer->set("audio_index", aindex);
- }
- //}
}
if (producer == NULL || producer->is_blank() || !producer->is_valid()) {
- kDebug() << " / / / / / / / /ERRROR / / / / // CANNOT LOAD PRODUCER: ";
+ kDebug() << " / / / / / / / / ERROR / / / / // CANNOT LOAD PRODUCER: ";
emit removeInvalidClip(clipId);
return;
}
+ if (xml.hasAttribute("force_aspect_ratio")) {
+ double aspect = xml.attribute("force_aspect_ratio").toDouble();
+ if (aspect > 0) producer->set("force_aspect_ratio", aspect);
+ }
+ if (xml.hasAttribute("threads")) {
+ int threads = xml.attribute("threads").toInt();
+ if (threads != 1) producer->set("threads", threads);
+ }
+ if (xml.hasAttribute("video_index")) {
+ int vindex = xml.attribute("video_index").toInt();
+ if (vindex != 0) producer->set("video_index", vindex);
+ }
+ if (xml.hasAttribute("audio_index")) {
+ int aindex = xml.attribute("audio_index").toInt();
+ if (aindex != 0) producer->set("audio_index", aindex);
+ }
+
if (xml.hasAttribute("out")) producer->set_in_and_out(xml.attribute("in").toInt(), xml.attribute("out").toInt());
char *tmp = decodedString(clipId);
producer->set("id", tmp);
delete[] tmp;
+
+ int height = 50;
+ int width = (int)(height * m_mltProfile->dar());
+ QMap < QString, QString > filePropertyMap;
+ QMap < QString, QString > metadataPropertyMap;
+
int frameNumber = xml.attribute("thumbnail", "0").toInt();
if (frameNumber != 0) producer->seek(frameNumber);
- mlt_properties properties = MLT_PRODUCER_PROPERTIES(producer->get_producer());
filePropertyMap["duration"] = QString::number(producer->get_playtime());
//kDebug() << "/////// PRODUCER: " << url.path() << " IS: " << producer.get_playtime();
filePropertyMap["fps"] = producer->get("source_fps");
if (frame && frame->is_valid()) {
- filePropertyMap["frame_size"] = QString::number(frame->get_int("width")) + "x" + QString::number(frame->get_int("height"));
+ filePropertyMap["frame_size"] = QString::number(frame->get_int("width")) + 'x' + QString::number(frame->get_int("height"));
filePropertyMap["frequency"] = QString::number(frame->get_int("frequency"));
filePropertyMap["channels"] = QString::number(frame->get_int("channels"));
filePropertyMap["aspect_ratio"] = frame->get("aspect_ratio");
char property[200];
if (producer->get_int("video_index") > -1) {
/*if (context->duration == AV_NOPTS_VALUE) {
- kDebug() << " / / / / / / / /ERRROR / / / CLIP HAS UNKNOWN DURATION";
+ kDebug() << " / / / / / / / /ERROR / / / CLIP HAS UNKNOWN DURATION";
emit removeInvalidClip(clipId);
return;
}*/
QString name = metadata.get_name(i);
QString value = QString::fromUtf8(metadata.get(i));
if (name.endsWith("markup") && !value.isEmpty())
- metadataPropertyMap[ name.section(".", 0, -2)] = value;
+ metadataPropertyMap[ name.section('.', 0, -2)] = value;
}
emit replyGetFileProperties(clipId, producer, filePropertyMap, metadataPropertyMap, replaceProducer);
}
/** Create the producer from the Westley QDomDocument */
-QString Render::sceneList() {
+const QString Render::sceneList() {
QString playlist;
Mlt::Consumer westleyConsumer(*m_mltProfile , "westley:kdenlive_playlist");
m_mltProducer->optimise();
westleyConsumer.start();
}
-const double Render::fps() const {
+double Render::fps() const {
return m_fps;
}
if (!m_mltProducer) return;
//m_mltConsumer->set("refresh", 0);
- mlt_properties properties = MLT_PRODUCER_PROPERTIES(m_mltProducer->get_producer());
+ //mlt_properties properties = MLT_PRODUCER_PROPERTIES(m_mltProducer->get_producer());
/*if (KdenliveSettings::osdtimecode()) {
mlt_properties_set_int( properties, "meta.attr.timecode", 1);
mlt_properties_set( properties, "meta.attr.timecode.markup", "#timecode#");
return;
}
- int height = 1080;//KdenliveSettings::defaultheight();
- int width = 1940; //KdenliveSettings::displaywidth();
+ //int height = 1080;//KdenliveSettings::defaultheight();
+ //int width = 1940; //KdenliveSettings::displaywidth();
//TODO: rewrite
QPixmap pix; // = KThumb::getFrame(m_mltProducer, -1, width, height);
/*
double blackDuration = Mlt::Producer(blackTrackPlaylist.get_producer()).get_playtime() - 1;
if (blackDuration != duration) {
- blackTrackPlaylist.remove_region(0, (int)blackDuration);
- int i = 0;
+ blackTrackPlaylist.clear();
int dur = (int)duration;
- QDomDocument doc;
- QDomElement black = doc.createElement("producer");
- black.setAttribute("mlt_service", "colour");
- black.setAttribute("colour", "black");
- black.setAttribute("id", "black");
- ItemInfo info;
- info.track = 0;
while (dur > 14000) {
- info.startPos = GenTime(i * 14000, m_fps);
- info.endPos = info.startPos + GenTime(13999, m_fps);
- mltInsertClip(info, black, m_blackClip);
+ blackTrackPlaylist.append(*m_blackClip, 0, 13999);
dur = dur - 14000;
- i++;
}
if (dur > 0) {
- info.startPos = GenTime(i * 14000, m_fps);
- info.endPos = info.startPos + GenTime(dur, m_fps);
- mltInsertClip(info, black, m_blackClip);
+ blackTrackPlaylist.append(*m_blackClip, 0, dur);
}
m_mltProducer->set("out", duration);
emit durationChanged((int)duration);
if (element.attribute("speed", "1.0").toDouble() != 1.0) {
// We want a slowmotion producer
double speed = element.attribute("speed", "1.0").toDouble();
- QString url = prod->get("resource");
- url.append("?" + QString::number(speed));
+ QString url = QString::fromUtf8(prod->get("resource"));
+ url.append('?' + QString::number(speed));
Mlt::Producer *slowprod = m_slowmotionProducers.value(url);
if (!slowprod || slowprod->get_producer() == NULL) {
char *tmp = decodedString(url);
delete[] tmp;
QString id = prod->get("id");
if (id.contains('_')) id = id.section('_', 0, 0);
- QString producerid = "slowmotion:" + id + ":" + QString::number(speed);
+ QString producerid = "slowmotion:" + id + ':' + QString::number(speed);
tmp = decodedString(producerid);
slowprod->set("id", tmp);
delete[] tmp;
int blankDuration = trackPlaylist.clip_length(i) - 1;
QString blk;
if (trackPlaylist.is_blank(i)) blk = "(blank)";
- kDebug()<<"CLIP "<<i<<": ("<<blankStart<<"x"<<blankStart + blankDuration<<")"<<blk;
+ kDebug()<<"CLIP "<<i<<": ("<<blankStart<<'x'<<blankStart + blankDuration<<")"<<blk;
}*/
int cutPos = (int) position.frames(m_fps);
int blankDuration = trackPlaylist.clip_length(i) - 1;
QString blk;
if (trackPlaylist.is_blank(i)) blk = "(blank)";
- kDebug()<<"CLIP "<<i<<": ("<<blankStart<<"x"<<blankStart + blankDuration<<")"<<blk;
+ kDebug()<<"CLIP "<<i<<": ("<<blankStart<<'x'<<blankStart + blankDuration<<")"<<blk;
}*/
m_isBlocked = false;
int blankDuration = trackPlaylist.clip_length(i) - 1;
QString blk;
if (trackPlaylist.is_blank(i)) blk = "(blank)";
- kDebug()<<"CLIP "<<i<<": ("<<blankStart<<"x"<<blankStart + blankDuration<<")"<<blk;
+ kDebug()<<"CLIP "<<i<<": ("<<blankStart<<'x'<<blankStart + blankDuration<<")"<<blk;
}*/
if (trackPlaylist.is_blank(clipIndex)) {
int blankDuration = trackPlaylist.clip_length(i) - 1;
QString blk;
if (trackPlaylist.is_blank(i)) blk = "(blank)";
- kDebug()<<"CLIP "<<i<<": ("<<blankStart<<"x"<<blankStart + blankDuration<<")"<<blk;
+ kDebug()<<"CLIP "<<i<<": ("<<blankStart<<'x'<<blankStart + blankDuration<<")"<<blk;
}*/
if (track != 0 && trackPlaylist.count() <= clipIndex) mltCheckLength();
Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
- int clipNb = trackPlaylist.count();
+ //int clipNb = trackPlaylist.count();
insertPos = trackClipStartList.value(trackNb - 1);
if (insertPos != -1) {
insertPos += offset;
int newLength = 0;
Mlt::Service service(m_mltProducer->parent().get_service());
if (service.type() != tractor_type) kWarning() << "// TRACTOR PROBLEM";
- kDebug() << "Changing clip speed, set in and out: " << info.cropStart.frames(m_fps) << " to " << (info.endPos - info.startPos).frames(m_fps) - 1;
+ //kDebug() << "Changing clip speed, set in and out: " << info.cropStart.frames(m_fps) << " to " << (info.endPos - info.startPos).frames(m_fps) - 1;
Mlt::Tractor tractor(service);
Mlt::Producer trackProducer(tractor.track(info.track));
Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
int clipLength = trackPlaylist.clip_length(clipIndex);
Mlt::Producer clip(trackPlaylist.get_clip(clipIndex));
- QString serv = clip.parent().get("mlt_service");
- QString id = clip.parent().get("id");
- kDebug() << "CLIP SERVICE: " << clip.parent().get("mlt_service");
+ if (!clip.is_valid() || clip.is_blank()) {
+ // invalid clip
+ return -1;
+ }
+ Mlt::Producer clipparent = clip.parent();
+ if (!clipparent.is_valid() || clipparent.is_blank()) {
+ // invalid clip
+ return -1;
+ }
+ QString serv = clipparent.get("mlt_service");
+ QString id = clipparent.get("id");
+ //kDebug() << "CLIP SERVICE: " << serv;
if (serv == "avformat" && speed != 1.0) {
mlt_service_lock(service.get_service());
- QString url = clip.parent().get("resource");
- url.append("?" + QString::number(speed));
+ QString url = QString::fromUtf8(clipparent.get("resource"));
+ url.append('?' + QString::number(speed));
Mlt::Producer *slowprod = m_slowmotionProducers.value(url);
if (!slowprod || slowprod->get_producer() == NULL) {
char *tmp = decodedString(url);
slowprod = new Mlt::Producer(*m_mltProfile, "framebuffer", tmp);
delete[] tmp;
- QString producerid = "slowmotion:" + id + ":" + QString::number(speed);
+ QString producerid = "slowmotion:" + id + ':' + QString::number(speed);
tmp = decodedString(producerid);
slowprod->set("id", tmp);
delete[] tmp;
} else if (serv == "framebuffer") {
mlt_service_lock(service.get_service());
- QString url = clip.parent().get("resource");
- url = url.section("?", 0, 0);
- url.append("?" + QString::number(speed));
+ QString url = QString::fromUtf8(clipparent.get("resource"));
+ url = url.section('?', 0, 0);
+ url.append('?' + QString::number(speed));
Mlt::Producer *slowprod = m_slowmotionProducers.value(url);
if (!slowprod || slowprod->get_producer() == NULL) {
char *tmp = decodedString(url);
slowprod = new Mlt::Producer(*m_mltProfile, "framebuffer", tmp);
delete[] tmp;
- QString producerid = "slowmotion:" + id.section(":", 1, 1) + ":" + QString::number(speed);
+ QString producerid = "slowmotion:" + id.section(':', 1, 1) + ':' + QString::number(speed);
tmp = decodedString(producerid);
slowprod->set("id", tmp);
delete[] tmp;
QString kfr = params.paramValue("keyframes");
if (!kfr.isEmpty()) {
- QStringList keyFrames = kfr.split(";", QString::SkipEmptyParts);
+ QStringList keyFrames = kfr.split(';', QString::SkipEmptyParts);
kDebug() << "// ADDING KEYFRAME EFFECT: " << params.paramValue("keyframes");
char *starttag = decodedString(params.paramValue("starttag", "start"));
char *endtag = decodedString(params.paramValue("endtag", "end"));
kDebug() << "// ADDING KEYFRAME TAGS: " << starttag << ", " << endtag;
int duration = clip->get_playtime();
- double max = params.paramValue("max").toDouble();
+ //double max = params.paramValue("max").toDouble();
double min = params.paramValue("min").toDouble();
double factor = params.paramValue("factor", "1").toDouble();
params.removeParam("starttag");
Mlt::Filter *filter = new Mlt::Filter(*m_mltProfile, filterTag);
if (filter && filter->is_valid()) {
filter->set("kdenlive_id", filterId);
- int x1 = keyFrames.at(i).section(":", 0, 0).toInt() + offset;
- double y1 = keyFrames.at(i).section(":", 1, 1).toDouble();
- int x2 = keyFrames.at(i + 1).section(":", 0, 0).toInt();
- double y2 = keyFrames.at(i + 1).section(":", 1, 1).toDouble();
+ int x1 = keyFrames.at(i).section(':', 0, 0).toInt() + offset;
+ double y1 = keyFrames.at(i).section(':', 1, 1).toDouble();
+ int x2 = keyFrames.at(i + 1).section(':', 0, 0).toInt();
+ double y2 = keyFrames.at(i + 1).section(':', 1, 1).toDouble();
if (x2 == -1) x2 = duration;
for (int j = 0; j < params.count(); j++) {
int blankDuration = trackPlaylist.clip_length(i) - 1;
QString blk;
if (trackPlaylist.is_blank(i)) blk = "(blank)";
- kDebug()<<"CLIP "<<i<<": ("<<blankStart<<"x"<<blankStart + blankDuration<<")"<<blk;
+ kDebug()<<"CLIP "<<i<<": ("<<blankStart<<'x'<<blankStart + blankDuration<<")"<<blk;
}*/
if (trackPlaylist.is_blank_at((int) info.startPos.frames(m_fps))) {
Mlt::Service service(m_mltProducer->parent().get_service());
Mlt::Tractor tractor(service);
- Mlt::Field *field = tractor.field();
mlt_service_lock(service.get_service());
m_mltConsumer->set("refresh", 0);
if (resource == type && startTrack == currentTrack && currentIn <= old_pos && currentOut >= old_pos) {
mlt_transition_set_in_and_out(tr, new_in, new_out);
if (newTrack - startTrack != 0) {
- kDebug() << "///// TRANSITION CHANGE TRACK. CUrrent (b): " << currentTrack << "x" << mlt_transition_get_a_track(tr) << ", NEw: " << newTrack << "x" << newTransitionTrack;
+ kDebug() << "///// TRANSITION CHANGE TRACK. CUrrent (b): " << currentTrack << 'x' << mlt_transition_get_a_track(tr) << ", NEw: " << newTrack << 'x' << newTransitionTrack;
mlt_properties properties = MLT_TRANSITION_PROPERTIES(tr);
mlt_properties_set_int(properties, "a_track", newTransitionTrack);
mlt_properties_set_int(properties, "b_track", newTrack);
- //kDebug() << "set new start & end :" << new_in << new_out<< "TR OFFSET: "<<trackOffset<<", TRACKS: "<<mlt_transition_get_a_track(tr)<<"x"<<mlt_transition_get_b_track(tr);
+ //kDebug() << "set new start & end :" << new_in << new_out<< "TR OFFSET: "<<trackOffset<<", TRACKS: "<<mlt_transition_get_a_track(tr)<<'x'<<mlt_transition_get_b_track(tr);
}
break;
}
m_isBlocked = true;
Mlt::Service service(m_mltProducer->parent().get_service());
Mlt::Tractor tractor(service);
- Mlt::Field *field = tractor.field();
//m_mltConsumer->set("refresh", 0);
mlt_service serv = m_mltProducer->parent().get_service();
int currentIn = (int) mlt_transition_get_in(tr);
int currentOut = (int) mlt_transition_get_out(tr);
- // kDebug()<<"Looking for transition : " << currentIn <<"x"<<currentOut<< ", OLD oNE: "<<in_pos<<"x"<<out_pos;
+ // kDebug()<<"Looking for transition : " << currentIn <<'x'<<currentOut<< ", OLD oNE: "<<in_pos<<'x'<<out_pos;
if (resource == type && b_track == currentTrack && currentIn == in_pos && currentOut == out_pos) {
QMap<QString, QString> map = mltGetTransitionParamsFromXml(xml);
//map[name]=map[name].replace(".",","); //FIXME how to solve locale conversion of . ,
}
- if (e.attribute("namedesc").contains(";")) {
+ if (e.attribute("namedesc").contains(';')) {
QString format = e.attribute("format");
QStringList separators = format.split("%d", QString::SkipEmptyParts);
QStringList values = e.attribute("value").split(QRegExp("[,:;x]"));
void Render::mltResizeTransparency(int oldStart, int newStart, int newEnd, int track, int id) {
Mlt::Service service(m_mltProducer->parent().get_service());
Mlt::Tractor tractor(service);
- Mlt::Field *field = tractor.field();
mlt_service_lock(service.get_service());
m_mltConsumer->set("refresh", 0);
mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
QString mlt_type = mlt_properties_get(properties, "mlt_type");
QString resource = mlt_properties_get(properties, "mlt_service");
- kDebug() << "// resize transpar from: " << oldStart << ", TO: " << newStart << "x" << newEnd << ", " << track << ", " << id;
+ kDebug() << "// resize transpar from: " << oldStart << ", TO: " << newStart << 'x' << newEnd << ", " << track << ", " << id;
while (mlt_type == "transition") {
mlt_transition tr = (mlt_transition) nextservice;
int currentTrack = mlt_transition_get_b_track(tr);
int currentIn = (int) mlt_transition_get_in(tr);
//mlt_properties props = MLT_TRANSITION_PROPERTIES(tr);
int transitionId = QString(mlt_properties_get(properties, "transparency")).toInt();
- kDebug() << "// resize transpar current in: " << currentIn << ", Track: " << currentTrack << ", id: " << id << "x" << transitionId ;
+ kDebug() << "// resize transpar current in: " << currentIn << ", Track: " << currentTrack << ", id: " << id << 'x' << transitionId ;
if (resource == "composite" && track == currentTrack && currentIn == oldStart && transitionId == id) {
- kDebug() << " / / / / /RESIZE TRANS TO: " << newStart << "x" << newEnd;
+ kDebug() << " / / / / /RESIZE TRANS TO: " << newStart << 'x' << newEnd;
mlt_transition_set_in_and_out(tr, newStart, newEnd);
break;
}
void Render::mltMoveTransparency(int startTime, int endTime, int startTrack, int endTrack, int id) {
Mlt::Service service(m_mltProducer->parent().get_service());
Mlt::Tractor tractor(service);
- Mlt::Field *field = tractor.field();
mlt_service_lock(service.get_service());
m_mltConsumer->set("refresh", 0);
int currentOut = (int) mlt_transition_get_out(tr);
//mlt_properties properties = MLT_TRANSITION_PROPERTIES(tr);
int transitionId = QString(mlt_properties_get(properties, "transparency")).toInt();
- //kDebug()<<" + TRANSITION "<<id<<" == "<<transitionId<<", START TMIE: "<<currentIn<<", LOOK FR: "<<startTime<<", TRACK: "<<currentTrack<<"x"<<startTrack;
+ //kDebug()<<" + TRANSITION "<<id<<" == "<<transitionId<<", START TMIE: "<<currentIn<<", LOOK FR: "<<startTime<<", TRACK: "<<currentTrack<<'x'<<startTrack;
if (resource == "composite" && transitionId == id && startTime == currentIn && startTrack == currentTrack) {
kDebug() << "//////MOVING";
mlt_transition_set_in_and_out(tr, endTime, endTime + currentOut - currentIn);
QString id = nprod->get("id");
if (id.startsWith("slowmotion:")) {
// this is a slowmotion producer, add it to the list
- QString url = nprod->get("resource");
+ QString url = QString::fromUtf8(nprod->get("resource"));
if (!m_slowmotionProducers.contains(url)) {
m_slowmotionProducers.insert(url, nprod);
}
projects / kdenlive / blobdiff