+}
+
+void ClipManager::slotGetAudioThumbs()
+{
+ Mlt::Profile prof((char*) KdenliveSettings::current_profile().toUtf8().constData());
+ mlt_audio_format audioFormat = mlt_audio_s16;
+ while (!m_abortAudioThumb && !m_audioThumbsQueue.isEmpty()) {
+ m_thumbsMutex.lock();
+ m_processingAudioThumbId = m_audioThumbsQueue.takeFirst();
+ m_thumbsMutex.unlock();
+ DocClipBase *clip = getClipById(m_processingAudioThumbId);
+ if (!clip || clip->audioThumbCreated()) continue;
+ KUrl url = clip->fileURL();
+ QString hash = clip->getClipHash();
+ if (hash.isEmpty()) continue;
+ QString audioPath = projectFolder() + "/thumbs/" + hash + ".thumb";
+ double lengthInFrames = clip->duration().frames(m_doc->fps());
+ int frequency = 0;
+ int channels = 0;
+ QString data = clip->getProperty("frequency");
+ if (!data.isEmpty()) frequency = data.toInt();
+ if (frequency <= 0) frequency = 48000;
+ data = clip->getProperty("channels");
+ if (!data.isEmpty()) channels = data.toInt();
+ if (channels <= 0) channels = 2;
+ int arrayWidth = 20;
+ double frame = 0.0;
+ int maxVolume = 0;
+ audioByteArray storeIn;
+ QFile f(audioPath);
+ if (QFileInfo(audioPath).size() > 0 && f.open(QIODevice::ReadOnly)) {
+ const QByteArray channelarray = f.readAll();
+ f.close();
+ if (channelarray.size() != arrayWidth*(frame + lengthInFrames) * channels) {
+ kDebug() << "--- BROKEN THUMB FOR: " << url.fileName() << " ---------------------- ";
+ f.remove();
+ continue;
+ }
+ kDebug() << "reading audio thumbs from file";
+
+ int h1 = arrayWidth * channels;
+ int h2 = (int) frame * h1;
+ int h3;
+ for (int z = (int) frame; z < (int)(frame + lengthInFrames) && !m_abortAudioThumb; z++) {
+ h3 = 0;
+ for (int c = 0; c < channels; c++) {
+ QByteArray audioArray(arrayWidth, '\x00');
+ for (int i = 0; i < arrayWidth; ++i) {
+ audioArray[i] = channelarray.at(h2 + h3 + i);
+ if (audioArray.at(i) > maxVolume) maxVolume = audioArray.at(i);
+ }
+ h3 += arrayWidth;
+ storeIn[z][c] = audioArray;
+ }
+ h2 += h1;
+ }
+ if (!m_abortAudioThumb) {
+ clip->setProperty("audio_max", QString::number(maxVolume - 64));
+ clip->updateAudioThumbnail(storeIn);
+ }
+ continue;
+ }
+
+ if (!f.open(QIODevice::WriteOnly)) {
+ kDebug() << "++++++++ ERROR WRITING TO FILE: " << audioPath;
+ kDebug() << "++++++++ DISABLING AUDIO THUMBS";
+ m_thumbsMutex.lock();
+ m_audioThumbsQueue.clear();
+ m_thumbsMutex.unlock();
+ KdenliveSettings::setAudiothumbnails(false);
+ break;
+ }
+
+ Mlt::Producer producer(prof, url.path().toUtf8().constData());
+ if (!producer.is_valid()) {
+ kDebug() << "++++++++ INVALID CLIP: " << url.path();
+ continue;
+ }
+
+ producer.set("video_index", "-1");
+
+ if (KdenliveSettings::normaliseaudiothumbs()) {
+ /*Mlt::Filter m_convert(prof, "volume");
+ m_convert.set("gain", "normalise");
+ producer.attach(m_convert);*/
+ }
+
+ int last_val = 0;
+ int val = 0;
+ double framesPerSecond = mlt_producer_get_fps(producer.get_producer());
+ Mlt::Frame *mlt_frame;
+
+ for (int z = (int) frame; z < (int)(frame + lengthInFrames) && producer.is_valid() && !m_abortAudioThumb; z++) {
+ val = (int)((z - frame) / (frame + lengthInFrames) * 100.0);
+ if (last_val != val && val > 1) {
+ setThumbsProgress(i18n("Creating audio thumbnail for %1", url.fileName()), val);
+ last_val = val;
+ }
+ producer.seek(z);
+ mlt_frame = producer.get_frame();
+ if (mlt_frame && mlt_frame->is_valid()) {
+ int samples = mlt_sample_calculator(framesPerSecond, frequency, mlt_frame->get_position());
+ qint16* pcm = static_cast<qint16*>(mlt_frame->get_audio(audioFormat, frequency, channels, samples));
+ for (int c = 0; c < channels; c++) {
+ QByteArray audioArray;
+ audioArray.resize(arrayWidth);
+ for (int i = 0; i < audioArray.size(); ++i) {
+ double pcmval = *(pcm + c + i * samples / audioArray.size());
+ if (pcmval >= 0) {
+ pcmval = sqrt(pcmval) / 2.83 + 64;
+ audioArray[i] = pcmval;
+ if (pcmval > maxVolume) maxVolume = pcmval;
+ }
+ else {
+ pcmval = -sqrt(-pcmval) / 2.83 + 64;
+ audioArray[i] = pcmval;
+ if (-pcmval > maxVolume) maxVolume = -pcmval;
+ }
+ }
+ f.write(audioArray);
+ storeIn[z][c] = audioArray;
+ }
+ } else {
+ f.write(QByteArray(arrayWidth, '\x00'));
+ }
+ delete mlt_frame;
+ }
+ f.close();
+ setThumbsProgress(i18n("Creating audio thumbnail for %1", url.fileName()), -1);
+ if (m_abortAudioThumb) {
+ f.remove();
+ } else {
+ clip->updateAudioThumbnail(storeIn);
+ clip->setProperty("audio_max", QString::number(maxVolume - 64));