Esempi in C# (CSharp) per LibHeifNative.heif_image_handle_get_list_of_depth_image_IDs

Esempio n. 1

File: HeifImageHandle.cs Progetto: torandersson/libheif-sharp

        /// <summary>
        /// Gets a list of the depth image ids.
        /// </summary>
        /// <returns>A list of the depth image ids.</returns>
        /// <exception cref="HeifException">A LibHeif error occurred.</exception>
        /// <exception cref="ObjectDisposedException">The object has been disposed.</exception>
        public IReadOnlyList <HeifItemId> GetDepthImageIds()
        {
            VerifyNotDisposed();

            int count = LibHeifNative.heif_image_handle_get_number_of_depth_images(this.imageHandle);

            if (count == 0)
            {
                return(Array.Empty <HeifItemId>());
            }

            var ids = new HeifItemId[count];

            unsafe
            {
                fixed(HeifItemId *ptr = ids)
                {
                    int filledCount = LibHeifNative.heif_image_handle_get_list_of_depth_image_IDs(this.imageHandle,
                                                                                                  ptr,
                                                                                                  count);

                    if (filledCount != count)
                    {
                        ExceptionUtil.ThrowHeifException(Resources.CannotGetAllMetadataBlockIds);
                    }
                }
            }

            return(ids);
        }