如何下载视频与blob url？

我找到了一个在blob url中下载视频的方法（看了这里我明白了怎么做了）。我把简单的步骤写在这里。我使用的是谷歌浏览器：

1. 打开Vimeo → More Tools

2. 检查视频标签中是否有这样的东西：

3. 复制iframe标签的src，如果有的话，像Developer Tools这样的东西，如果你找到了就可以直接到7点，否则按照步骤4，5，6。 现在用你的idhttp://player.vimeo.com/video/XYZ组成一个URL，像这样：https://skyfire.vimeocdn.com/.../master.json?base64_init=1

7.把视频标签里面的https://48skyfiregce-a.akamaihd.net/.../master.json?base64_init=1替换成最后一个URL（上一步#6中创建的URL）。现在你会发现，视频标签里面的src字段神奇地改变了（如果没有改变，请尝试多次步骤7）…..

1. 使用新的链接直接下载它，它是这样的 https://fpdl.vimeocdn.com/vimeo-prod-skyfire-std-us/XX/XXX/X/XXXXXXXX/XXXXXXXXX.mp4?token=abcdefg

这个答案是针对Twitter的URL–

1.在视频中点击检查元素–

2.复制粘贴上面的代码，像这样的代码

<div id="playerContainer" class="player-container full-screen-enabled" data-config="{"is_360":false,"duration":28617,"scribe_widget_origin":true,"heartbeatEnabled":true,"video_url":"https:\/\/video.twimg.com\/ext_tw_video\/844504104512749568\/pu\/pl\/e91Du5N2TZ09ZaW_.m3u8","disable_embed":"0","videoInfo":{"title":null,"description":null,"publisher":{"screen_name":"MountainButorac","name":"Mountain Butorac","profile_image_url":"https:\/\/pbs.twimg.com\/profile_images\/808318456701521920\/vBvlAASx_normal.jpg"}},"cardUrl":"https:\/\/t.co\/SdSorop3uN","content_type":"application\/x-mpegURL","owner_id":"14120461","looping_enabled":true,"show_cookie_override_en":true,"visit_cta_url":null,"scribe_playlist_url":"https:\/\/twitter.com\/MountainButorac\/status\/844505243538931714\/video\/1","source_type":"consumer","image_src":"https:\/\/pbs.twimg.com\/ext_tw_video_thumb\/844504104512749568\/pu\/img\/FFt3qkbeOh0RlGfZ.jpg","heartbeatIntervalInMs":5000.0,"use_tfw_live_heartbeat_event_category":true,"video_loading_timeout":45000.0,"status":{"created_at":"Wed Mar 22 11:05:14 +0000 2017","id":844505243538931714,"id_str":"844505243538931714","text":"Took my Goddaughter to meet the pope. She stole his hat! https:\/\/t.co\/SdSorop3uN","truncated":false,"entities":{"hashtags":[],"symbols":[],"user_mentions":[],"urls":[],"media":[{"id":844504104512749568,"id_str":"844504104512749568","indices":[57,80],"media_url":"http:\/\/pbs.twimg.com\/ext_tw_video_thumb\/844504104512749568\/pu\/img\/FFt3qkbeOh0RlGfZ.jpg","media_url_https":"https:\/\/pbs.twimg.com\/ext_tw_video_thumb\/844504104512749568\/pu\/img\/FFt3qkbeOh0RlGfZ.jpg","url":"https:\/\/t.co\/SdSorop3uN","display_url":"pic.twitter.com\/SdSorop3uN","expanded_url":"https:\/\/twitter.com\/MountainButorac\/status\/844505243538931714\/video\/1","type":"photo","sizes":{"small":{"w":340,"h":604,"resize":"fit"},"thumb":{"w":150,"h":150,"resize":"crop"},"large":{"w":576,"h":1024,"resize":"fit"},"medium":{"w":576,"h":1024,"resize":"fit"}}}]},"source":"\u003ca href=```
{
    "is_360": false,
    "duration": 28617,
    "scribe_widget_origin": true,
    "heartbeatEnabled": true,
    "video_url": "https://video.twimg.com/ext_tw_video/844504104512749568/pu/pl/e91Du5N2TZ09ZaW_.m3u8",

    "disable_embed": "0",
    "videoInfo": {
        "title": null,
        "description": null,
        "publisher": {
            "screen_name": "MountainButorac",
            "name": "Mountain Butorac",
            "profile_image_url": "https://pbs.twimg.com/profile_images/808318456701521920/vBvlAASx_normal.jpg"
        }
    },
    "cardUrl": "https://t.co/SdSorop3uN",
    "content_type": "application/x-mpegURL",
    "owner_id": "14120461",
    "looping_enabled": true,
    "show_cookie_override_en": true,
    "visit_cta_url": null,
    "scribe_playlist_url": "https://twitter.com/MountainButorac/status/844505243538931714/video/1",
    "source_type": "consumer",
    "image_src": "https://pbs.twimg.com/ext_tw_video_thumb/844504104512749568/pu/img/FFt3qkbeOh0RlGfZ.jpg",
    "heartbeatIntervalInMs": 5000.0,
    "use_tfw_live_heartbeat_event_category": true,
    "video_loading_timeout": 45000.0,
    "status": {
        "created_at": "Wed Mar 22 11:05:14 +0000 2017",
        "id": 844505243538931714,
        "id_str": "844505243538931714",
        "text": "Took my Goddaughter to meet the pope. She stole his hat! https://t.co/SdSorop3uN",
        "truncated": false,
        "entities": {
            "hashtags": [],
            "symbols": [],
            "user_mentions": [],
            "urls": [],
            "media": [{
                "id": 844504104512749568,
                "id_str": "844504104512749568",
                "indices": [57, 80],
                "media_url": "http://pbs.twimg.com/ext_tw_video_thumb/844504104512749568/pu/img/FFt3qkbeOh0RlGfZ.jpg",
                "media_url_https": "https://pbs.twimg.com/ext_tw_video_thumb/844504104512749568/pu/img/FFt3qkbeOh0RlGfZ.jpg",
                "url": "https://t.co/SdSorop3uN",
                "display_url": "pic.twitter.com/SdSorop3uN",
                "expanded_url": "https://twitter.com/MountainButorac/status/844505243538931714/video/1",
                "type": "photo",
                "sizes": {
                    "small": {
                        "w": 340,
                        "h": 604,
                        "resize": "fit"
                    },
                    "thumb": {
                        "w": 150,
                        "h": 150,
                        "resize": "crop"
                    },
                    "large": {
                        "w": 576,
                        "h": 1024,
                        "resize": "fit"
                    },
                    "medium": {
                        "w": 576,
                        "h": 1024,
                        "resize": "fit"
                    }
                }
            }]
        },
        "source": "\u003ca href=\"http://twitter.com/download/iphone\" rel=\"nofollow\"\u003eTwitter for iPhone\u003c/a\u003e",
        "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,
        "geo": null,
        "coordinates": null,
        "place": null,
        "contributors": null,
        "retweet_count": 0,
        "favorite_count": 0,
        "favorited": false,
        "retweeted": false,
        "possibly_sensitive": false,
        "lang": "en"
    },
    "show_cookie_override_all": true,
    "video_session_enabled": false,
    "media_id": "844504104512749568",
    "view_counts": null,
    "statusTimestamp": {
        "local": "4:05 AM - 22 Mar 2017"
    },
    "media_type": 1,
    "user": {
        "screen_name": "MountainButorac",
        "name": "Mountain Butorac",
        "profile_image_url": "https://pbs.twimg.com/profile_images/808318456701521920/vBvlAASx_bigger.jpg"
    },
    "watch_now_cta_url": null,
    "tweet_id": "844505243538931714"
}
```quot;http:\/\/twitter.com\/download\/iphone```
https://video.twimg.com/ext_tw_video/844504104512749568/pu/pl/e91Du5N2TZ09ZaW_.m3u8
```quot; rel=&001quot;nofollow&001quot;\u003eTwitter for iPhone\u003c\/a\u003e","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,"geo":null,"coordinates":null,"place":null,"contributors":null,"retweet_count":0,"favorite_count":0,"favorited":false,"retweeted":false,"possibly_sensitive":false,"lang":"en"},"show_cookie_override_all":true,"video_session_enabled":false,"media_id":"844504104512749568","view_counts":null,"statusTimestamp":{"local":"4:05 AM - 22 Mar 2017"},"media_type":1,"user":{"screen_name":"MountainButorac","name":"Mountain Butorac","profile_image_url":"https:\/\/pbs.twimg.com\/profile_images\/808318456701521920\/vBvlAASx_bigger.jpg"},"watch_now_cta_url":null,"tweet_id":"844505243538931714"}" data-source-type="consumer">

2.复制粘贴上面的代码，在记事本中的记事本中，可以看到这样的代码。在视频上点击右键，点击检查元素–

你会发现一个像这样的代码

&001

2.将上面的代码复制粘贴到notepad++中。3.将所有的"替换成"，并将\/换成/**。(使用CTRL+H)

你会得到类似于

&001

从上面的JSON格式中，看到video_url

&001

这里的问题是，2016年8月1日之后，Twitter不再使用.mp4视频，而是转换为.mp4视频。 mp4视频，而是转换为一种新的HLS、自适应流格式，文件后缀为.m3u8

.m3u8文件基本上只是一个文本文件的封装体，它们超级小（300-500字节），当你用文本编辑器打开它们时，它们包含了不同大小的视频链接

1. 在notepad++中打开m3u8文件，它包含的代码是这样的

EXTM3U EXT-X-INDEPENDENT-SEGMENTS EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=256000,RESOLUTION=180x320,CODECS=“mp4a.40 .2,avc1.42001f” /exttw/video/844504104512749568/pu/pl/180x320/Z42SY5zwMlLdFYx.m3u8EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=832000,分辨率=360x640,CODECS=“mp4a.40 .2,avc1.42001f” */ext_tw\video/844504104512749568/pu/pl/360x640/-Phfjbbx2yinirLi.m3u8***

1. 根据你的分辨率需要，从上面复制相应的链接。重复相同的步骤，直到你有了.ts文件。下载.ts文件（视频文件）。

<video src="blob:https://www.example.tv/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx">
  <source src="https://cdn.example.tv/api/media/tv/xyzxyz/index" type="application/x-mpegurl">
</video>

我在blob:中也有video/@src的URL，但在播放过程中通过观看Developer tools ⁄Network，发现video/source/@src是m3u8播放列表的URL。 只要在播放视频的时候在Dev工具中查看网络选项卡，就可以看到你实际获取的内容。

我在blob url中找到了另一种下载视频的方法（见本页面中的【其他答案】(https://superuser.com/a/1130616/355601)）。

这个方案只适合于只想要视频而不需要声音的情况下使用！

所以，如果你想下载只需要Vimeo视频（通常不需要声音），我可以确认这个谷歌浏览器扩展的效果真的很好。Flash Video Downloader](https://chrome.google.com/webstore/detail/flash-video-downloader/aiimdkdngfcipjohbjenkahhlhccpdbc).