To convert animation GIF to MP4 by ffmpeg, use the following command
ffmpeg -i animated.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" video.mp4
movflags – This option optimizes the structure of the MP4 file so the browser can load it as quickly as possible.
pix_fmt – MP4 videos store pixels in different formats. We include this option to specify a specific format which has maximum compatibility across all browsers.
| #include "bulk_list.h" | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| bulk_list_t bulk_list_create(int32_t initial_capacity, bulk_list_item_id_t item_size) | |
| { | |
| bulk_list_t result = { NULL, item_size, initial_capacity, 1, 0, 0, 1 }; | |
| result.items = (uint8_t*)realloc(result.items, result.capacity * result.item_size); | |
| ((bulk_list_item_t*)&result.items[0])->next = 0; |
| // Build on linux: | |
| // sudo apt install freeglut3-dev | |
| // gcc main.c -o main -lGL -lglut | |
| #include <GL/glut.h> | |
| void drawVertices(GLenum mode, const void *vertices, int n_vertices){ | |
| glEnableClientState(GL_VERTEX_ARRAY); | |
| glVertexPointer(2, GL_FLOAT, 0, vertices); | |
| glDrawArrays(mode, 0, n_vertices); | |
| } |
| #ifndef ARRAYLIST_HPP | |
| #define ARRAYLIST_HPP | |
| #include <stdlib.h> | |
| #include <assert.h> | |
| #include <string.h> | |
| //NOTE: this struct zero-initializes to a valid state! | |
| // List<T> list = {}; //this is valid | |
| template <typename TYPE> |
| /* | |
| IMPORTANT INFO: | |
| This code is made to be renderer-agnostic. | |
| You would complete the implementation by implementing the triangle() function for your particular renderer. | |
| The code is not written to make use of an index buffer, so it is not perfectly efficient in terms of memory usage. | |
| You can replace the vector / matrix math with types from your own math library if you want, or leave it as-is. | |
| This implementation assumes coordinates are in screen pixel space (circleDetail() relies on that fact). | |
| If you want to draw partially transparent lines, you will need render all triangles of a line at the same depth | |
| and use the less-than or greater-than or not-equal depth test (e.g. glDepthFunc(GL_LESS) or GL_GREATER or GL_NOTEQUAL) | |
| because some triangles overlap. |
| extension NSImage { | |
| /// Create a CIImage using the best representation available | |
| /// | |
| /// - Returns: Converted image, or nil | |
| func asCIImage() -> CIImage? { | |
| if let cgImage = self.asCGImage() { | |
| return CIImage(cgImage: cgImage) | |
| } | |
| return nil | |
| } |
Minimal D3D11 reference implementation: An uncluttered Direct3D 11 setup + basic rendering primer and API familiarizer. Complete, runnable Windows application contained in a single function and laid out in a linear, step-by-step fashion that should be easy to follow from the code alone. ~200 LOC. No modern C++, OOP or (other) obscuring cruft. View on YouTube
| using System; | |
| using System.Collections.Generic; | |
| using System.Collections.Concurrent; | |
| using UnityEngine; | |
| using WacomMTDN; | |
| // Simple Wacom Multitouch Unity Integration built from the Wacom's DotNet Example: | |
| // https://developer-docs.wacom.com/display/DevDocs/Feel+Multi-touch+Sample+Code+Downloads | |
| // WacomMTDN.dll can be found at: https://drive.google.com/file/d/1fvoRfIev28fKMvTrfF9IBZkAaWow5UJ4/view?usp=sharing | |
| public class WacomMultiTouchProvider : MonoBehaviour { |
| import JavaScriptCore | |
| extension JSContext { | |
| subscript(key: String) -> Any { | |
| get { | |
| return self.objectForKeyedSubscript(key) as Any | |
| } | |
| set{ | |
| self.setObject(newValue, forKeyedSubscript: key as NSCopying & NSObjectProtocol) | |
| } |
