public Bitmap GetPreview(PreviewSettings settings, int previewNumber, int deinterlace) { SourceTitle title = this.Titles.TitleList.FirstOrDefault(t => t.Index == settings.TitleNumber); // Create the Expected Output Geometry details for libhb. hb_geometry_settings_s uiGeometry = new hb_geometry_settings_s { crop = new[] { settings.Cropping.Top, settings.Cropping.Bottom, settings.Cropping.Left, settings.Cropping.Right }, itu_par = 0, keep = (int)AnamorphicFactory.KeepSetting.HB_KEEP_WIDTH + (settings.KeepDisplayAspect ? 0x04 : 0), // TODO Keep Width? maxWidth = settings.MaxWidth, maxHeight = settings.MaxHeight, mode = (int)(hb_anamorphic_mode_t)settings.Anamorphic, modulus = settings.Modulus ?? 16, geometry = new hb_geometry_s { height = settings.Height, width = settings.Width, par = settings.Anamorphic != Anamorphic.Custom ? new hb_rational_t { den = title.Geometry.PAR.Den, num = title.Geometry.PAR.Num } : new hb_rational_t { den = settings.PixelAspectY, num = settings.PixelAspectX } } }; // Fetch the image data from LibHb IntPtr resultingImageStuct = HBFunctions.hb_get_preview2(this.hbHandle, settings.TitleNumber, previewNumber, ref uiGeometry, deinterlace); hb_image_s image = InteropUtilities.ToStructureFromPtr <hb_image_s>(resultingImageStuct); // Copy the filled image buffer to a managed array. int stride_width = image.plane[0].stride; int stride_height = image.plane[0].height_stride; int imageBufferSize = stride_width * stride_height; // int imageBufferSize = outputWidth * outputHeight * 4; byte[] managedBuffer = new byte[imageBufferSize]; Marshal.Copy(image.plane[0].data, managedBuffer, 0, imageBufferSize); var bitmap = new Bitmap(image.width, image.height); BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, image.width, image.height), ImageLockMode.WriteOnly, PixelFormat.Format32bppRgb); IntPtr ptr = bitmapData.Scan0; // Pointer to the first pixel. for (int i = 0; i < image.height; i++) { try { Marshal.Copy(managedBuffer, i * stride_width, ptr, stride_width); ptr = IntPtr.Add(ptr, image.width * 4); } catch (Exception exc) { Debug.WriteLine(exc); // In theory, this will allow a partial image display if this happens. TODO add better logging of this. } } bitmap.UnlockBits(bitmapData); // Close the image so we don't leak memory. IntPtr nativeJobPtrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr))); Marshal.WriteIntPtr(nativeJobPtrPtr, resultingImageStuct); HBFunctions.hb_image_close(nativeJobPtrPtr); Marshal.FreeHGlobal(nativeJobPtrPtr); return(bitmap); }
/// <summary> /// Gets the language object for the given code. /// </summary> /// <param name="code">The ISO-639-2 code for the language.</param> /// <returns>Object that describes the language.</returns> public static Language Get(string code) { iso639_lang_t language = InteropUtilities.ToStructureFromPtr <iso639_lang_t>(HBFunctions.lang_for_code2(code)); return(HandBrakeUnitConversionHelpers.NativeToLanguage(language)); }