public bool TryGetValues(CameraMetadataTag metadataTag, List <CameraMetadataValue> outMetadataList) { if (m_ArCameraMetadataHandle == IntPtr.Zero) { // Intentionally ignored logging as the camera metadata is expected to be // unavailable in between frames. return(false); } return(m_NativeApi.CameraMetadata.TryGetValues(m_ArCameraMetadataHandle, metadataTag, outMetadataList)); }
/// <summary> /// Get camera image metadata value. The querying value type needs to match the returned type. /// The type could be checked in CameraMetadata.cs. /// </summary> /// <param name="metadataTag">Metadata type.</param> /// <param name="outMetadataList">Result list of the requested values.</param> /// <returns><c>true</c> if getting metadata value successfully, otherwise <c>false</c>.</returns> public static bool TryGetValues(CameraMetadataTag metadataTag, List <CameraMetadataValue> outMetadataList) { outMetadataList.Clear(); var nativeSession = LifecycleManager.Instance.NativeSession; if (nativeSession == null) { return(false); } var metadataHandle = nativeSession.FrameApi.AcquireImageMetadata(); var isSuccess = nativeSession.CameraMetadataApi.TryGetValues(metadataHandle, metadataTag, outMetadataList); nativeSession.CameraMetadataApi.Release(metadataHandle); return(isSuccess); }
public bool TryGetValues(IntPtr cameraMetadataHandle, CameraMetadataTag tag, List <CameraMetadataValue> resultList) { IntPtr ndkMetadataHandle = IntPtr.Zero; ExternApi.ArImageMetadata_getNdkCameraMetadata(m_NativeSession.SessionHandle, cameraMetadataHandle, ref ndkMetadataHandle); resultList.Clear(); NdkCameraMetadata entry = new NdkCameraMetadata(); NdkCameraStatus status = ExternApi.ACameraMetadata_getConstEntry(ndkMetadataHandle, tag, ref entry); if (status != NdkCameraStatus.Ok) { ARDebug.LogErrorFormat("ACameraMetadata_getConstEntry error with native camera error code: {0}", status); return(false); } for (int i = 0; i < entry.Count; i++) { switch (entry.Type) { case NdkCameraMetadataType.Byte: sbyte byteValue = (sbyte)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <sbyte>(entry.Value, i), typeof(sbyte)); resultList.Add(new CameraMetadataValue(byteValue)); break; case NdkCameraMetadataType.Int32: int intValue = (int)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(entry.Value, i), typeof(int)); resultList.Add(new CameraMetadataValue(intValue)); break; case NdkCameraMetadataType.Float: float floatValue = (float)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <float>(entry.Value, i), typeof(float)); resultList.Add(new CameraMetadataValue(floatValue)); break; case NdkCameraMetadataType.Int64: long longValue = (long)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <long>(entry.Value, i), typeof(long)); resultList.Add(new CameraMetadataValue(longValue)); break; case NdkCameraMetadataType.Double: double doubleValue = (double)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <double>(entry.Value, i), typeof(double)); resultList.Add(new CameraMetadataValue(doubleValue)); break; case NdkCameraMetadataType.Rational: CameraMetadataRational rationalValue = (CameraMetadataRational)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <CameraMetadataRational>(entry.Value, i), typeof(CameraMetadataRational)); resultList.Add(new CameraMetadataValue(rationalValue)); break; default: return(false); } } return(true); }
public static extern NdkCameraStatus ACameraMetadata_getConstEntry(IntPtr ndkCameraMetadata, CameraMetadataTag tag, ref NdkCameraMetadata entry);
public bool TryGetValues(IntPtr cameraMetadataHandle, CameraMetadataTag tag, List <CameraMetadataValue> resultList) { resultList.Clear(); uint utag = (uint)tag; ArCameraMetadata entry = new ArCameraMetadata(); ApiArStatus status = ExternApi.ArImageMetadata_getConstEntry(_nativeSession.SessionHandle, cameraMetadataHandle, utag, ref entry); if (status != ApiArStatus.Success) { ARDebug.LogErrorFormat( "ArImageMetadata_getConstEntry error with native camera error code: {0}", status); return(false); } if (entry.Count > _maximumTagCountForWarning && !_warningTags.Contains((int)tag)) { Debug.LogWarningFormat( "TryGetValues for tag {0} has {1} values. Accessing tags with a large " + "number of values may impede performance.", tag, entry.Count); _warningTags.Add((int)tag); } for (int i = 0; i < entry.Count; i++) { switch (entry.Type) { case ArCameraMetadataType.Byte: sbyte byteValue = (sbyte)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <sbyte>(entry.Value, i), typeof(sbyte)); resultList.Add(new CameraMetadataValue(byteValue)); break; case ArCameraMetadataType.Int32: int intValue = (int)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <int>(entry.Value, i), typeof(int)); resultList.Add(new CameraMetadataValue(intValue)); break; case ArCameraMetadataType.Float: float floatValue = (float)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <float>(entry.Value, i), typeof(float)); resultList.Add(new CameraMetadataValue(floatValue)); break; case ArCameraMetadataType.Int64: long longValue = (long)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <long>(entry.Value, i), typeof(long)); resultList.Add(new CameraMetadataValue(longValue)); break; case ArCameraMetadataType.Double: double doubleValue = (double)Marshal.PtrToStructure( MarshalingHelper.GetPtrToUnmanagedArrayElement <double>(entry.Value, i), typeof(double)); resultList.Add(new CameraMetadataValue(doubleValue)); break; case ArCameraMetadataType.Rational: CameraMetadataRational rationalValue = (CameraMetadataRational)Marshal.PtrToStructure( MarshalingHelper .GetPtrToUnmanagedArrayElement <CameraMetadataRational>( entry.Value, i), typeof(CameraMetadataRational)); resultList.Add(new CameraMetadataValue(rationalValue)); break; default: return(false); } } return(true); }
/// <summary> /// Get camera image metadata value. The querying value type needs to match the returned type. /// The type could be checked in CameraMetadata.cs. /// </summary> /// <param name="metadataTag">Metadata type.</param> /// <param name="outMetadataList">Result list of the requested values.</param> /// <returns><c>true</c> if getting metadata value successfully, otherwise <c>false</c>.</returns> public static bool TryGetValues(CameraMetadataTag metadataTag, List <CameraMetadataValue> outMetadataList) { return(Frame.s_FrameManager.CameraMetadataManager.TryGetValues(metadataTag, outMetadataList)); }