bool NDKCamera::MatchCaptureSizeRequest()

in camera/basic/src/main/cpp/camera_manager.cpp [166:223]
53 lines of code
14 McCabe index (conditional complexity)

bool NDKCamera::MatchCaptureSizeRequest(ANativeWindow* display,
                                        ImageFormat* resView,
                                        ImageFormat* resCap) {
  DisplayDimension disp(ANativeWindow_getWidth(display),
                        ANativeWindow_getHeight(display));
  if (cameraOrientation_ == 90 || cameraOrientation_ == 270) {
    disp.Flip();
  }

  ACameraMetadata* metadata;
  CALL_MGR(
      getCameraCharacteristics(cameraMgr_, activeCameraId_.c_str(), &metadata));
  ACameraMetadata_const_entry entry;
  CALL_METADATA(getConstEntry(
      metadata, ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS, &entry));
  // format of the data: format, width, height, input?, type int32
  bool foundIt = false;
  DisplayDimension foundRes(4000, 4000);
  DisplayDimension maxJPG(0, 0);

  for (int i = 0; i < entry.count; i += 4) {
    int32_t input = entry.data.i32[i + 3];
    int32_t format = entry.data.i32[i + 0];
    if (input) continue;

    if (format == AIMAGE_FORMAT_YUV_420_888 || format == AIMAGE_FORMAT_JPEG) {
      DisplayDimension res(entry.data.i32[i + 1],
                           entry.data.i32[i + 2]);
      if (!disp.IsSameRatio(res)) continue;
      if (format == AIMAGE_FORMAT_YUV_420_888 && foundRes > res) {
        foundIt = true;
        foundRes = res;
      } else if (format == AIMAGE_FORMAT_JPEG && res > maxJPG) {
        maxJPG = res;
      }
    }
  }

  if (foundIt) {
    resView->width = foundRes.org_width();
    resView->height = foundRes.org_height();
    resCap->width = maxJPG.org_width();
    resCap->height = maxJPG.org_height();
  } else {
    LOGW("Did not find any compatible camera resolution, taking 640x480");
    if (disp.IsPortrait()) {
      resView->width = 480;
      resView->height = 640;
    } else {
      resView->width = 640;
      resView->height = 480;
    }
    *resCap = *resView;
  }
  resView->format = AIMAGE_FORMAT_YUV_420_888;
  resCap->format = AIMAGE_FORMAT_JPEG;
  return foundIt;
}