Method imageDescDecoder

src/quicktimevideo.cpp:1234–1284

}  // QuickTimeVideo::audioDescDecoder

void QuickTimeVideo::imageDescDecoder() {
  DataBuf buf(40);
  std::memset(buf.data(), 0x0, buf.size());
  buf.data()[4] = '\0';
  io_->readOrThrow(buf.data(), 4);
  size_t size = 82;

  const TagVocabulary* td;

  for (int i = 0; size / 4 != 0; size -= 4, i++) {
    io_->readOrThrow(buf.data(), 4);

    switch (i) {
      case codec:
        td = Exiv2::find(qTimeFileType, Exiv2::toString(buf.data()));
        if (td)
          xmpData_["Xmp.video.Codec"] = exvGettext(td->label_);
        else
          xmpData_["Xmp.video.Codec"] = Exiv2::toString(buf.data());
        break;
      case VendorID:
        td = Exiv2::find(vendorIDTags, Exiv2::toString(buf.data()));
        if (td)
          xmpData_["Xmp.video.VendorID"] = exvGettext(td->label_);
        break;
      case SourceImageWidth_Height:
        xmpData_["Xmp.video.SourceImageWidth"] = buf.read_uint16(0, bigEndian);
        xmpData_["Xmp.video.SourceImageHeight"] = (buf.data()[2] * 256 + buf.data()[3]);
        break;
      case XResolution:
        xmpData_["Xmp.video.XResolution"] =
            buf.read_uint16(0, bigEndian) + ((buf.data()[2] * 256 + buf.data()[3]) * 0.01);
        break;
      case YResolution:
        xmpData_["Xmp.video.YResolution"] =
            buf.read_uint16(0, bigEndian) + ((buf.data()[2] * 256 + buf.data()[3]) * 0.01);
        io_->readOrThrow(buf.data(), 3);
        size -= 3;
        break;
      case CompressorName:
        io_->readOrThrow(buf.data(), 32);
        size -= 32;
        xmpData_["Xmp.video.Compressor"] = Exiv2::toString(buf.data());
        break;
      default:
        break;
    }
  }
  io_->readOrThrow(buf.data(), static_cast<long>(size % 4));
  xmpData_["Xmp.video.BitDepth"] = static_cast<int>(buf.read_uint8(0));
}  // QuickTimeVideo::imageDescDecoder

void QuickTimeVideo::multipleEntriesDecoder(size_t recursion_depth) {
  enforce(recursion_depth < max_recursion_depth_, Exiv2::ErrorCode::kerCorruptedMetadata);