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#include "tsystem.h"
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#include "tiio_mp4.h"
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#include "trasterimage.h"
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#include "timageinfo.h"
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#include "tsound.h"
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#include "toonz/stage.h"
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#include <qstringlist></qstringlist>
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//===========================================================
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//
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//  TImageWriterMp4
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//
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//===========================================================
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class TImageWriterMp4 : public TImageWriter {
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public:
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  int m_frameIndex;
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  TImageWriterMp4(const TFilePath &path, int frameIndex, TLevelWriterMp4 *lwg)
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      : TImageWriter(path), m_frameIndex(frameIndex), m_lwg(lwg) {
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    m_lwg->addRef();
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  }
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  ~TImageWriterMp4() { m_lwg->release(); }
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  bool is64bitOutputSupported() override { return false; }
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  void save(const TImageP &img) override { m_lwg->save(img, m_frameIndex); }
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private:
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  TLevelWriterMp4 *m_lwg;
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};
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//===========================================================
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//
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//  TLevelWriterMp4;
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//
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//===========================================================
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TLevelWriterMp4::TLevelWriterMp4(const TFilePath &path, TPropertyGroup *winfo)
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    : TLevelWriter(path, winfo) {
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  if (!m_properties) m_properties = new Tiio::Mp4WriterProperties();
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  if (m_properties->getPropertyCount() == 0) {
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    m_scale      = 100;
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    m_vidQuality = 100;
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  } else {
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    std::string scale = m_properties->getProperty("Scale")->getValueAsString();
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    m_scale           = QString::fromStdString(scale).toInt();
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    std::string quality =
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        m_properties->getProperty("Quality")->getValueAsString();
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    m_vidQuality = QString::fromStdString(quality).toInt();
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  }
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  ffmpegWriter = new Ffmpeg();
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  ffmpegWriter->setPath(m_path);
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  if (TSystem::doesExistFileOrLevel(m_path)) TSystem::deleteFile(m_path);
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}
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//-----------------------------------------------------------
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TLevelWriterMp4::~TLevelWriterMp4() {
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  // QProcess createMp4;
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  QStringList preIArgs;
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  QStringList postIArgs;
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  int outLx = m_lx;
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  int outLy = m_ly;
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  // set scaling
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  if (m_scale != 0) {
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    outLx = m_lx * m_scale / 100;
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    outLy = m_ly * m_scale / 100;
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  }
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  // ffmpeg doesn't like resolutions that aren't divisible by 2.
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  if (outLx % 2 != 0) outLx++;
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  if (outLy % 2 != 0) outLy++;
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  // calculate quality (bitrate)
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  int pixelCount   = m_lx * m_ly;
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  int bitRate      = pixelCount / 150;  // crude but gets decent values
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  double quality   = m_vidQuality / 100.0;
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  double tempRate  = (double)bitRate * quality;
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  int finalBitrate = (int)tempRate;
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  int crf          = 51 - (m_vidQuality * 51 / 100);
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  preIArgs << "-framerate";
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  preIArgs << QString::number(m_frameRate);
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  postIArgs << "-pix_fmt";
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  postIArgs << "yuv420p";
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  postIArgs << "-s";
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  postIArgs << QString::number(outLx) + "x" + QString::number(outLy);
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  postIArgs << "-b";
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  postIArgs << QString::number(finalBitrate) + "k";
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  ffmpegWriter->runFfmpeg(preIArgs, postIArgs, false, false, true);
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  ffmpegWriter->cleanUpFiles();
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}
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//-----------------------------------------------------------
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TImageWriterP TLevelWriterMp4::getFrameWriter(TFrameId fid) {
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  // if (IOError != 0)
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  //	throw TImageException(m_path, buildMp4ExceptionString(IOError));
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  if (fid.getLetter() != 0) return TImageWriterP(0);
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  int index            = fid.getNumber();
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  TImageWriterMp4 *iwg = new TImageWriterMp4(m_path, index, this);
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  return TImageWriterP(iwg);
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}
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//-----------------------------------------------------------
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void TLevelWriterMp4::setFrameRate(double fps) {
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  m_frameRate = fps;
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  ffmpegWriter->setFrameRate(fps);
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}
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void TLevelWriterMp4::saveSoundTrack(TSoundTrack *st) {
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  ffmpegWriter->saveSoundTrack(st);
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}
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//-----------------------------------------------------------
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void TLevelWriterMp4::save(const TImageP &img, int frameIndex) {
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  TRasterImageP image(img);
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  m_lx = image->getRaster()->getLx();
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  m_ly = image->getRaster()->getLy();
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  ffmpegWriter->createIntermediateImage(img, frameIndex);
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}
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//===========================================================
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//
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//  TImageReaderMp4
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//
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//===========================================================
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class TImageReaderMp4 final : public TImageReader {
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public:
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  int m_frameIndex;
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  TImageReaderMp4(const TFilePath &path, int index, TLevelReaderMp4 *lra,
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                  TImageInfo *info)
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      : TImageReader(path), m_lra(lra), m_frameIndex(index), m_info(info) {
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    m_lra->addRef();
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  }
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  ~TImageReaderMp4() { m_lra->release(); }
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  TImageP load() override { return m_lra->load(m_frameIndex); }
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  TDimension getSize() const { return m_lra->getSize(); }
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  TRect getBBox() const { return TRect(); }
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  const TImageInfo *getImageInfo() const override { return m_info; }
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private:
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  TLevelReaderMp4 *m_lra;
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  TImageInfo *m_info;
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  // not implemented
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  TImageReaderMp4(const TImageReaderMp4 &);
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  TImageReaderMp4 &operator=(const TImageReaderMp4 &src);
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};
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//===========================================================
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//
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//  TLevelReaderMp4
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//
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//===========================================================
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TLevelReaderMp4::TLevelReaderMp4(const TFilePath &path) : TLevelReader(path) {
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  ffmpegReader = new Ffmpeg();
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  ffmpegReader->setPath(m_path);
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  ffmpegReader->disablePrecompute();
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  ffmpegFileInfo tempInfo = ffmpegReader->getInfo();
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  double fps              = tempInfo.m_frameRate;
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  m_frameCount            = tempInfo.m_frameCount;
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  m_size                  = TDimension(tempInfo.m_lx, tempInfo.m_ly);
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  m_lx                    = m_size.lx;
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  m_ly                    = m_size.ly;
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  ffmpegReader->getFramesFromMovie();
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  // set values
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  m_info                   = new TImageInfo();
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  m_info->m_frameRate      = fps;
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  m_info->m_lx             = m_lx;
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  m_info->m_ly             = m_ly;
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  m_info->m_bitsPerSample  = 8;
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  m_info->m_samplePerPixel = 4;
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  m_info->m_dpix           = Stage::standardDpi;
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  m_info->m_dpiy           = Stage::standardDpi;
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}
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//-----------------------------------------------------------
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TLevelReaderMp4::~TLevelReaderMp4() {
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  // ffmpegReader->cleanUpFiles();
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}
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//-----------------------------------------------------------
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TLevelP TLevelReaderMp4::loadInfo() {
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  if (m_frameCount == -1) return TLevelP();
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  TLevelP level;
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  for (int i = 1; i <= m_frameCount; i++) level->setFrame(i, TImageP());
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  return level;
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}
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//-----------------------------------------------------------
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TImageReaderP TLevelReaderMp4::getFrameReader(TFrameId fid) {
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  // if (IOError != 0)
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  //	throw TImageException(m_path, buildAVIExceptionString(IOError));
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  if (fid.getLetter() != 0) return TImageReaderP(0);
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  int index = fid.getNumber();
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  TImageReaderMp4 *irm = new TImageReaderMp4(m_path, index, this, m_info);
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  return TImageReaderP(irm);
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}
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//------------------------------------------------------------------------------
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TDimension TLevelReaderMp4::getSize() { return m_size; }
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//------------------------------------------------
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TImageP TLevelReaderMp4::load(int frameIndex) {
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  return ffmpegReader->getImage(frameIndex);
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}
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Tiio::Mp4WriterProperties::Mp4WriterProperties()
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    : m_vidQuality("Quality", 1, 100, 90), m_scale("Scale", 1, 100, 100) {
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  bind(m_vidQuality);
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  bind(m_scale);
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}
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void Tiio::Mp4WriterProperties::updateTranslation() {
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  m_vidQuality.setQStringName(tr("Quality"));
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  m_scale.setQStringName(tr("Scale"));
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}
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// Tiio::Reader* Tiio::makeMp4Reader(){ return nullptr; }
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// Tiio::Writer* Tiio::makeMp4Writer(){ return nullptr; }