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Meekdai / meekdai.github.io

http://blog.meekdai.com/
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抖音无水印视频下载代码分析 #43

Open Meekdai opened 8 months ago

Meekdai commented 8 months ago

看到有大神分享了一个去水印下载的代码，源代码是PHP的。我简单读了一下，测试后其实很简单，这里简单记录一下，之后可以做一些东西。

获取视频ID

其实这一步很简单，如果是电脑上的浏览器访问的，地址栏最后就会包含这个ID。例如

https://www.douyin.com/video/7324602766213598501

最后面的一串数字就是这个视频的ID。

获取uri

通过API获取这个视频play_addr的uri地址。

https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?reflow_source=reflow_page&item_ids=7324602766213598501&a_bogus=64745b2b5bdc4e75b720a9a85b19867a

只需要替换上面链接中的item_ids=7324602766213598501这一项的数字就是视频ID。然后在返回的页面中可以看到很长一段json数据。格式化一下，更容易查看：

{
    "item_list": [{
        "aweme_id": "7324602766213598501",
        "desc": "#江西文旅 #庐山雪景  我来给我家乡江西上分啦！欢迎大家来九江庐山看雪呀～ 超级美！",
        "create_time": 1705391987,
        "author": {
            "short_id": "11491514",
            "nickname": "饭思思",
            "signature": "爱唱歌爱cos～\n来围脖找我玩呀：饭思思的微博\n合作邮箱：sisi2442@163.com\n唯一小号@万年婴儿肥",
            "avatar_thumb": {
                "uri": "100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p3.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p11.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p26.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172"]
            },
            "avatar_medium": {
                "uri": "100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p3.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p11.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p26.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172"]
            },
            "follow_status": 0,
            "following_count": 0,
            "favoriting_count": 0,
            "unique_id": "sisi2442",
            "mplatform_followers_count": 0,
            "followers_detail": null,
            "platform_sync_info": null,
            "geofencing": null,
            "policy_version": null,
            "sec_uid": "MS4wLjABAAAAOEQzC2nJjIS5Zq5QFgfRxxLKGODQj0Vvlz8gciLF8Tg",
            "type_label": null,
            "card_entries": null,
            "mix_info": null
        },
        "music": {
            "mid": "7324602840553409291",
            "title": "@饭思思创作的原声一饭思思（原声中的歌曲：此生不换-Qing Niao Fei Yu）",
            "author": "饭思思",
            "cover_hd": {
                "uri": "1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p11.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p3.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p6.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172"]
            },
            "cover_large": {
                "uri": "1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p11.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p3.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p6.douyinpic.com/aweme/1080x1080/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172"]
            },
            "cover_medium": {
                "uri": "720x720/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p11.douyinpic.com/aweme/720x720/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p3.douyinpic.com/aweme/720x720/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172", "https://p26.douyinpic.com/aweme/720x720/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2.jpeg?from=116350172"]
            },
            "cover_thumb": {
                "uri": "168x168/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2",
                "url_list": ["https://p11.douyinpic.com/img/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2~c5_168x168.jpeg?from=116350172", "https://p3.douyinpic.com/img/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2~c5_168x168.jpeg?from=116350172", "https://p26.douyinpic.com/img/aweme-avatar/tos-cn-avt-0015_31b2187fc176a131cb13a70cd0a840f2~c5_168x168.jpeg?from=116350172"]
            },
            "duration": 30,
            "position": null,
            "status": 1
        },
        "cha_list": null,
        "video": {
            "play_addr": {
                "uri": "v0200fg10000cmj3edbc77u6r20l0bg0",
                "url_list": ["https://aweme.snssdk.com/aweme/v1/playwm/?video_id=v0200fg10000cmj3edbc77u6r20l0bg0\u0026ratio=720p\u0026line=0"]
            },
            "cover": {
                "uri": "tos-cn-i-0813/oQAAMUHgQBALifT2L35EYfK2sc7qKBAfPEG7At",
                "url_list": ["https://p3-sign.douyinpic.com/tos-cn-i-0813/oQAAMUHgQBALifT2L35EYfK2sc7qKBAfPEG7At~c5_300x400.webp?x-expires=1706662800\u0026x-signature=KDss1boVmMbpV9s1B7wXy6s0984%3D\u0026from=3213915784_large\u0026s=PackSourceEnum_DOUYIN_REFLOW\u0026se=false\u0026sc=cover\u0026biz_tag=aweme_video\u0026l=20240117093850F434F462C106845AC2B1", "https://p9-sign.douyinpic.com/tos-cn-i-0813/oQAAMUHgQBALifT2L35EYfK2sc7qKBAfPEG7At~c5_300x400.webp?x-expires=1706662800\u0026x-signature=Gm32fNnhaB%2BuHg%2FdYYtGDzaOTh8%3D\u0026from=3213915784_large\u0026s=PackSourceEnum_DOUYIN_REFLOW\u0026se=false\u0026sc=cover\u0026biz_tag=aweme_video\u0026l=20240117093850F434F462C106845AC2B1", "https://p26-sign.douyinpic.com/tos-cn-i-0813/oQAAMUHgQBALifT2L35EYfK2sc7qKBAfPEG7At~c5_300x400.webp?x-expires=1706662800\u0026x-signature=pRe9L5y22stsKjkV5kho%2BOHklXE%3D\u0026from=3213915784_large\u0026s=PackSourceEnum_DOUYIN_REFLOW\u0026se=false\u0026sc=cover\u0026biz_tag=aweme_video\u0026l=20240117093850F434F462C106845AC2B1", "https://p3-sign.douyinpic.com/tos-cn-i-0813/oQAAMUHgQBALifT2L35EYfK2sc7qKBAfPEG7At~c5_300x400.jpeg?x-expires=1706662800\u0026x-signature=cX7dhmiOZft%2BHL8bY0%2Btx%2BvziPg%3D\u0026from=3213915784_large\u0026s=PackSourceEnum_DOUYIN_REFLOW\u0026se=false\u0026sc=cover\u0026biz_tag=aweme_video\u0026l=20240117093850F434F462C106845AC2B1"]
            },
            "height": 1080,
            "width": 1920,
            "bit_rate": null
        },
        "statistics": {
            "aweme_id": "7324602766213598501",
            "comment_count": 4719,
            "digg_count": 70996,
            "play_count": 0,
            "share_count": 4648,
            "collect_count": 2021
        },
        "text_extra": [{
            "start": 0,
            "end": 5,
            "type": 1,
            "hashtag_name": "江西文旅",
            "hashtag_id": 1641348211717134
        }, {
            "start": 6,
            "end": 11,
            "type": 1,
            "hashtag_name": "庐山雪景",
            "hashtag_id": 1587012021222414
        }],
        "video_labels": null,
        "image_infos": null,
        "risk_infos": {
            "warn": false,
            "type": 0,
            "content": "",
            "reflow_unplayable": 0
        },
        "comment_list": null,
        "geofencing": null,
        "video_text": null,
        "label_top_text": null,
        "promotions": null,
        "long_video": null,
        "images": null,
        "group_id_str": "7317867723025960233",
        "chapter_list": null,
        "interaction_stickers": null,
        "img_bitrate": null
    }],
    "filter_list": [],
    "extra": {
        "now": 1705455530245,
        "logid": "20240117093850F434F462C106845AC2B1"
    },
    "status_code": 0
}

可以找到video里面play_addr的uri地址为v0200fg10000cmj3edbc77u6r20l0bg0。

得到无水印视频链接

用上一步得到的uri地址，替换下面的${data.video.play_addr.uri}就可以了

https://www.iesdouyin.com/aweme/v1/play/?video_id=${data.video.play_addr.uri}&ratio=1080p&line=0

所以这个例子里面得到无水印视频下载地址为：

https://www.iesdouyin.com/aweme/v1/play/?video_id=v0200fg10000cmj3edbc77u6r20l0bg0&ratio=1080p&line=0

需要注意的是，这个uri地址是会变的，所以需要实时获取才有效。

参考链接

https://github.com/x-dr/douyin