有没有一种方法可以在没有信箱的情况下获取高分辨率的YouTube视频缩略图? [英] Is there a way to get a high-res YouTube video thumbnail without letter-boxing?

问题描述

我根本不明白为什么YouTube API的缩略图似乎包含视频的信箱.如果我要此视频的缩略图，并使用

I don't understand at all why the YouTube API's thumbnails seem to include letter boxing for videos. If I want the thumbnail for this video, and use the methods shown here I can get the mqdefault version that is a little too small (but thankfully doesn't have letterboxing), but if I jump up to say the sddefault, which is a good size, I get:

( http://img.youtube.com/vi/12fR9neVnS8/sddefault.jpg)

我真的只是想要它而无需装箱.我是否必须以编程方式自行裁剪?有没有一种方法可以在没有信箱的情况下获得像样的YouTube缩略图?

I really just want it without the letter-boxing. Do I have to crop it out myself programmatically? Is there a way to get decent-sized YouTube thumbnails without letter-boxing?

推荐答案

上传的视频将以4:3的纵横比(默认，中等和标准)创建三个缩略图.

Uploaded videos create three thumbnails in a 4:3 aspect ratio (default, medium and standard).

高清视频还创建了另外两个宽高比为16:9的缩略图(高和最大)以及4:3的拇指，从而在其上提供了文字框.

High definition videos also create another two thumbnails in 16:9 aspect ratio (high and maxres) as well as the 4:3 thumbs, which gives letter boxing on those.

对于该视频，以下是可用的缩略图:

For that video, these are the available thumbnails:

"thumbnails": {
 "default": {
  "url": "https://i.ytimg.com/vi/12fR9neVnS8/default.jpg",
  "width": 120,
  "height": 90
 },
 "medium": {
  "url": "https://i.ytimg.com/vi/12fR9neVnS8/mqdefault.jpg",
  "width": 320,
  "height": 180
 },
 "high": {
  "url": "https://i.ytimg.com/vi/12fR9neVnS8/hqdefault.jpg",
  "width": 480,
  "height": 360
 },
 "standard": {
  "url": "https://i.ytimg.com/vi/12fR9neVnS8/sddefault.jpg",
  "width": 640,
  "height": 480
 },
 "maxres": {
  "url": "https://i.ytimg.com/vi/12fR9neVnS8/maxresdefault.jpg",
  "width": 1280,
  "height": 720
 }

您想要的声音 https://i.ytimg.com/vi/12fR9neVnS8/maxresdefault.jpg

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