我试图使用Twitter API从给定的tweet导入视频。然而，当我使用statuses/show端点时，它不会像图像那样返回任何扩展的视频实体，而是返回一个url实体，链接到一些嵌入视频播放器的视频容器，其中包含一个模糊的视频链接。
下面是一个例子:
我正试图在https://twitter.com/NHL/status/633987786018717696导入推文
使用Twitter API的statuses/show端点和tweet id，我得到这个响应:
{
"created_at": "Wed Aug 19 13:04:01 +0000 2015",
"id": 633987786018717700,
"id_str": "633987786018717696",
"text": "The offseason has us missing all of our fans, even the wacky ones... especially the wacky ones. #IsItOctoberYet?nhttps://t.co/v4UGDQpa61",
"source": "<a href="http://twitter.com" rel="nofollow">Twitter Web Client</a>",
"truncated": false,
"in_reply_to_status_id": null,
"in_reply_to_status_id_str": null,
"in_reply_to_user_id": null,
"in_reply_to_user_id_str": null,
"in_reply_to_screen_name": null,
"user": {
"id": 50004938,
"id_str": "50004938",
"name": "NHL",
"screen_name": "NHL",
"location": "30 cities across U.S. & Canada",
"description": "The official source of everything you need and want to know from the National Hockey League. Read before tweeting us: http://t.co/JlyVXSpqMn",
"url": "http://t.co/VI8RlwuVr9",
"entities": {
"url": {
"urls": [
{
"url": "http://t.co/VI8RlwuVr9",
"expanded_url": "http://www.NHL.com",
"display_url": "NHL.com",
"indices": [
0,
22
]
}
]
},
"description": {
"urls": [
{
"url": "http://t.co/JlyVXSpqMn",
"expanded_url": "http://nhl.com/socialmediapolicy",
"display_url": "nhl.com/socialmediapol…",
"indices": [
118,
140
]
}
]
}
},
"protected": false,
"followers_count": 4130811,
"friends_count": 2646,
"listed_count": 18479,
"created_at": "Tue Jun 23 15:24:18 +0000 2009",
"favourites_count": 909,
"utc_offset": -14400,
"time_zone": "Eastern Time (US & Canada)",
"geo_enabled": true,
"verified": true,
"statuses_count": 87436,
"lang": "en",
"contributors_enabled": false,
"is_translator": false,
"is_translation_enabled": true,
"profile_background_color": "000000",
"profile_background_image_url": "http://pbs.twimg.com/profile_background_images/378800000139631457/fd-xWa9G.jpeg",
"profile_background_image_url_https": "https://pbs.twimg.com/profile_background_images/378800000139631457/fd-xWa9G.jpeg",
"profile_background_tile": false,
"profile_image_url": "http://pbs.twimg.com/profile_images/534776558238437376/yxrm83O7_normal.jpeg",
"profile_image_url_https": "https://pbs.twimg.com/profile_images/534776558238437376/yxrm83O7_normal.jpeg",
"profile_banner_url": "https://pbs.twimg.com/profile_banners/50004938/1435502670",
"profile_link_color": "040CDE",
"profile_sidebar_border_color": "FFFFFF",
"profile_sidebar_fill_color": "2E2E2E",
"profile_text_color": "0F5A80",
"profile_use_background_image": true,
"has_extended_profile": false,
"default_profile": false,
"default_profile_image": false,
"following": true,
"follow_request_sent": false,
"notifications": false
},
"geo": null,
"coordinates": null,
"place": null,
"contributors": null,
"is_quote_status": false,
"retweet_count": 865,
"favorite_count": 1342,
"entities": {
"hashtags": [
{
"text": "IsItOctoberYet",
"indices": [
96,
111
]
}
],
"symbols": [],
"user_mentions": [],
"urls": [
{
"url": "https://t.co/v4UGDQpa61",
"expanded_url": "https://amp.twimg.com/v/2a0210d1-4d39-4665-a749-ea34f8efef08",
"display_url": "amp.twimg.com/v/2a0210d1-4d3…",
"indices": [
113,
136
]
}
]
},
"favorited": false,
"retweeted": false,
"possibly_sensitive": false,
"possibly_sensitive_appealable": false,
"lang": "en"
}
点击URL后，视频标签的来源为https://amp.twimg.com/amplify-web-player/prod/source.html?vmap_url=https%3A%2F%2Famp.twimg.com%2Fprod%2Fmultibr_v_1%2Fvmap%2F2015%2F08%2F20%2F13%2F609fc2af-1d06-4894-80be-1c231f97557a%2Fa69baa90-58de-4d1d-b2dc-2c3ef1ab9b35.vmap&duration=91.958&image_src=https%3A%2F%2Famp.twimg.com%2Fprod%2Fdefault%2F2015%2F08%2F20%2F13%2Fe8f0b317-ba48-4cec-bf2c-da4598e2b46b_poster-67227.jpg&content_id=609fc2af-1d06-4894-80be-1c231f97557a&page=amplify_card
如果他们不为它提供external_entity，我如何从tweet中提取此视频文件?
Twitter API现在已经更改，视频存储在extended_entities对象中。根据比特率的不同，可能有多个源。这是如何检索具有最高比特率的一个:
var bitrate = 0;
var hq_video_url;
for (var j=0; j<tweet.extended_entities.media[0].video_info.variants.length; j++) {
if (tweet.extended_entities.media[0].video_info.variants[j].bitrate) {
if (tweet.extended_entities.media[0].video_info.variants[j].bitrate > bitrate) {
bitrate = tweet.extended_entities.media[0].video_info.variants[j].bitrate;
hq_video_url = tweet.extended_entities.media[0].video_info.variants[j].url;
}
}
}
gif的解决方案在这里!
在Twitter API V2中，目前不可能获取GIF和视频url。我知道这太愚蠢了。但是一个变通方法是获取内容的预览图像并手工构建媒体URL。
假设我们想通过V2 API获取以下tweet的GIF URL: https://twitter.com/FloodSocial/status/870042717589340160
当我们使用以下URL获取tweet时https://api.twitter.com/2/tweets/870042717589340160?tweet.fields=attachments,author_id,created_at,entities,id,text&media.fields=preview_image_url,url&expansions=attachments.media_keys(当然使用您的承载令牌)，您将看到响应包含一个包含https://pbs.twimg.com/tweet_video_thumb/DBMDLy_U0AAqUWP.jpg
的preview_image_url。所以这里我们可以从URL中提取DBMDLy_U0AAqUWP部分，并手动构建真正的GIF URL，它应该是https://video.twimg.com/tweet_video/DBMDLy_U0AAqUWP.mp4
好了。您只需要编写提取器函数
当使用statuses/show端点时，添加tweet_mode:'extended'选项以获取extended_entities对象。响应中的这个路径将包含视频url: extended_entities.media[0].video_info.variants例子:
[
{
content_type: 'application/x-mpegURL',
url: 'https://video.twimg.com/ext_tw_video/1358226.........'
},
{
bitrate: 832000,
content_type: 'video/mp4',
url: 'https://video.twimg.com/ext_tw_video/1358226.........'
},
{
bitrate: 256000,
content_type: 'video/mp4',
url: 'https://video.twimg.com/ext_tw_video/1358226.........'
}
]
嗯，这取决于你使用的是什么平台…
- 直接连接URL
- 使用二进制视频数据
- 将二进制数据(例如字节流)通过一些显示它的小部件泵送。
如何做到这一点的细节将根据平台的不同而有很大的不同&您使用的语言