视频流URL

视频为 DASH 或 MP4 流媒体，需调用取流 API 传参视频 id 获取

qn视频清晰度标识

注：该值在 DASH 格式下无效，因为 DASH 格式会取到所有分辨率的流地址

值	含义	备注
6	240P 极速	仅 MP4 格式支持仅`platform=html5`时有效
16	360P 流畅
32	480P 清晰
64	720P 高清	WEB 端默认值 B站前端需要登录才能选择，但是直接发送请求可以不登录就拿到 720P 的取流地址无 720P 时则为 720P60
74	720P60 高帧率	登录认证
80	1080P 高清	TV 端与 APP 端默认值登录认证
112	1080P+ 高码率	大会员认证
116	1080P60 高帧率	大会员认证
120	4K 超清	需要`fnval&128=128`且`fourk=1` 大会员认证
125	HDR 真彩色	仅支持 DASH 格式需要`fnval&64=64` 大会员认证
126	杜比视界	仅支持 DASH 格式需要`fnval&512=512` 大会员认证
127	8K 超高清	仅支持 DASH 格式需要`fnval&1024=1024` 大会员认证

例如：请求 1080P+ 的视频，则qn=112

fnver视频流版本标识

目前该值恒为 0，即fnver=0

fnval视频流格式标识

该代码为二进制属性位，如需组合功能需要使用OR运算结合一下数值

目前 FLV 格式已下线，应避免使用fnval=0

值	含义	备注
0	~~FLV 格式~~	FLV 格式已下线仅 H.264 编码部分老视频存在分段现象与 MP4、DASH 格式互斥
1	MP4 格式	仅 H.264 编码与 ~~FLV~~、DASH 格式互斥
16	DASH 格式	与 MP4、~~FLV~~ 格式互斥
64	是否需求 HDR 视频	需求 DASH 格式仅 H.265 编码需要`qn=125` 大会员认证
128	是否需求 4K 分辨率	该值与`fourk`字段协同作用需要`qn=120` 大会员认证
256	是否需求杜比音频	需求 DASH 格式大会员认证
512	是否需求杜比视界	需求 DASH 格式大会员认证
1024	是否需求 8K 分辨率	需求 DASH 格式需要`qn=127` 大会员认证
2048	是否需求 AV1 编码	需求 DASH 格式

例如：请求 DASH 格式，且需要 HDR 的视频流，则fnval=16|64=80

视频编码代码

值	含义	备注
7	AVC 编码	8K 视频不支持该格式
12	HEVC 编码
13	AV1 编码

视频伴音音质代码

值	含义
30216	64K
30232	132K
30280	192K
30250	杜比全景声
30251	Hi-Res无损

获取视频流地址_web端

https://api.bilibili.com/x/player/wbi/playurl

~~https://api.bilibili.com/x/player/playurl~~ （旧链接）

请求方式：GET

认证方式：Cookie（SESSDATA）

鉴权方式：Wbi 签名

关于视频流会员鉴权：

获取 720P 及以上清晰度视频时需要登录（Cookie）
获取高帧率（1080P60）/ 高码率（1080P+）/ HDR / 杜比视界视频时需要有大会员的账号登录（Cookie）
获取会员专属视频时需要登录（Cookie）
部分特殊视频（如平台宣传片、活动视频等）不需要大会员账号认证

获取 url 有效时间为 120min，超时失效需要重新获取

~~部分视频会有分段，需要特别注意~~（FLV 格式已下线，不可能出现分段

若视频有分P，仅为单P视频的 url，换P则需传参对应 CID 重新获取

url参数：

参数名	类型	内容	必要性	备注
avid	num	稿件 avid	必要（可选）	avid 与 bvid 任选一个
bvid	str	稿件 bvid	必要（可选）	avid 与 bvid 任选一个
cid	num	视频 cid	必要
qn	num	视频清晰度选择	非必要	未登录默认 32（480P），登录后默认 64（720P）含义见上表 DASH 格式时无效
fnval	num	视频流格式标识	非必要	默认值为`1`（MP4 格式）含义见上表
fnver	num	0	非必要
fourk	num	是否允许 4K 视频	非必要	画质最高 1080P：0（默认）画质最高 4K：1
session	str		非必要	从视频播放页的 HTML 中获取
otype	str		非必要	固定为`json`
type	str		非必要	目前为空
platform	str		非必要	pc：web播放（默认值，视频流存在 referer鉴权） html5：移动端 HTML5 播放（仅支持 MP4 格式，无 referer 鉴权可以直接使用`video`标签播放）
high_quality	num	是否高画质	非必要	platform=html5时，此值为1可使画质为1080p

json回复：

根对象：

字段	类型	内容	备注
code	num	返回值	0：成功 -400：请求错误 -404：无视频
message	str	错误信息	默认为0
ttl	num	1
data	有效时：obj 无效时：null	数据本体

data对象：

字段	类型	内容	备注
from	str	`local`？
result	str	`suee`？
message	str	空？
quality	num	清晰度标识	含义见上表
format	str	视频格式	`mp4`/`flv`
timelength	num	视频长度	单位为毫秒不同分辨率 / 格式可能有略微差异
accept_format	str	支持的全部格式	每项用`,`分隔
accept_description	array	支持的清晰度列表（文字说明）
accept_quality	array	支持的清晰度列表（代码）	含义见上表
video_codecid	num	默认选择视频流的编码id	含义见上表
seek_param	str	`start`？
seek_type	str	`offset`（DASH / FLV）？ `second`（MP4）？
durl	array	视频分段流信息	注：仅 FLV / MP4 格式存在此字段
dash	obj	DASH 流信息	注：仅 DASH 格式存在此字段
support_formats	array	支持格式的详细信息
high_format	null	（？）
last_play_time	num	上次播放进度	毫秒值
last_play_cid	num	上次播放分P的 cid

data中的accept_description数组：

项	类型	内容
0	str	分辨率名称1
n	str	分辨率名称(n+1)
……	str	……

data中的accept_quality数组：

项	类型	内容	备注
0	num	分辨率代码1	含义见上表
n	num	分辨率代码(n+1)
……	num	……

data中的support_formats数组：

项	类型	内容
0	obj	播放格式详细信息1
n	obj	播放格式详细信息(n+1)
……	obj	……

support_formats数组中的对象：

字段	类型	内容	备注
quality	num	视频清晰度代码	含义见上表
format	str	视频格式
new_description	str	格式描述
display_desc	str	格式描述
superscript	str	(?)
codecs	array	可用编码格式列表

support_formats中的codecs数组：

项	类型	内容	备注
0	str	例：av01.0.13M.08.0.110.01.01.01.0	使用AV1编码
1	str	例子：avc1.640034	使用AVC编码
2	str	例子：hev1.1.6.L153.90	使用HEVC编码

由于 MP4 / ~~FLV~~ 与 DASH 格式的返回结构不同，以下内容需要分类讨论durl与dash字段的内容

FLV/MP4格式

data中的durl数组：

项	类型	内容	备注
0	obj	视频分段 1 信息	目前由于 FLV 格式已经下线，不会存在分段现象，故无需关心
n	obj	视频分段 (n+1) 信息
……	obj	……

durl数组中的对象：

字段	类型	内容	备注
order	num	视频分段序号	某些视频会分为多个片段（从1顺序增长）
length	num	视频长度	单位为毫秒
size	num	视频大小	单位为 Byte
ahead	str	（？）
vhead	str	（？）
url	str	默认流 URL	注意 unicode 转义符有效时间为120min
backup_url	array	备用视频流

durl数组中的对象中的backup_url数组：

项	类型	内容	备注
0	str	备用流 URL 1	注意 unicode 转义符有效时间为120min
n	str	备用流 URL (n+1)
……	str	……

示例：

视频无分段时：

获取视频av99999999/BV1y7411Q7Eq中的 1P（cid=171776208）的视频流 URL，清晰度为 1080P+，使用 FLV 方式获取

avid方式：

curl -G 'https://api.bilibili.com/x/player/playurl' \
    --data-urlencode 'avid=99999999' \
    --data-urlencode 'cid=171776208' \
    --data-urlencode 'qn=112' \
    --data-urlencode 'fnval=0' \
    --data-urlencode 'fnver=0' \
    --data-urlencode 'fourk=1' \
    -b 'SESSDATA=xxx'

bvid方式：

curl -G 'https://api.bilibili.com/x/player/playurl' \
    --data-urlencode 'bvid=BV1y7411Q7Eq' \
    --data-urlencode 'cid=171776208' \
    --data-urlencode 'qn=112' \
    --data-urlencode 'fnval=0' \
    --data-urlencode 'fnver=0' \
    --data-urlencode 'fourk=1' \
    -b 'SESSDATA=xxx'

查看响应示例：

{
  "code": 0,
  "message": "0",
  "ttl": 1,
  "data": {
    "from": "local",
    "result": "suee",
    "message": "",
    "quality": 64,
    "format": "flv720",
    "timelength": 283801,
    "accept_format": "hdflv2,flv,flv720,flv480,mp4",
    "accept_description": [
      "高清 1080P+",
      "高清 1080P",
      "高清 720P",
      "清晰 480P",
      "流畅 360P"
    ],
    "accept_quality": [
      112,
      80,
      64,
      32,
      16
    ],
    "video_codecid": 7,
    "seek_param": "start",
    "seek_type": "offset",
    "durl": [
      {
        "order": 1,
        "length": 283801,
        "size": 70486426,
        "ahead": "",
        "vhead": "",
        "url": "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/08/62/171776208/171776208_nb2-1-64.flv?e=ig8euxZM2rNcNbNMnwdVhwdlhbK3hwdVhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1662808778&gen=playurlv2&os=cosbv&oi=3719461929&trid=31dc1934e77141bfbdf5ae88aca0b29fu&mid=0&platform=pc&upsig=a4d5f1713e1ba313041d034a958c2414&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=0,3&agrr=1&bw=249068&logo=80000000",
        "backup_url": [
          "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/08/62/171776208/171776208_nb2-1-64.flv?e=ig8euxZM2rNcNbNMnwdVhwdlhbK3hwdVhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1662808778&gen=playurlv2&os=cosbv&oi=3719461929&trid=31dc1934e77141bfbdf5ae88aca0b29fu&mid=0&platform=pc&upsig=a4d5f1713e1ba313041d034a958c2414&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&agrr=1&bw=249068&logo=40000000",
          "https://upos-sz-mirrorcosb.bilivideo.com/upgcxcode/08/62/171776208/171776208_nb2-1-64.flv?e=ig8euxZM2rNcNbNMnwdVhwdlhbK3hwdVhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1662808778&gen=playurlv2&os=cosbbv&oi=3719461929&trid=31dc1934e77141bfbdf5ae88aca0b29fu&mid=0&platform=pc&upsig=7b8a6924948864944815ec0748cc108f&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&agrr=1&bw=249068&logo=40000000"
        ]
      }
    ],
    "support_formats": [
      {
        "quality": 112,
        "format": "hdflv2",
        "new_description": "1080P 高码率",
        "display_desc": "1080P",
        "superscript": "高码率",
        "codecs": null
      },
      {
        "quality": 80,
        "format": "flv",
        "new_description": "1080P 高清",
        "display_desc": "1080P",
        "superscript": "",
        "codecs": null
      },
      {
        "quality": 64,
        "format": "flv720",
        "new_description": "720P 高清",
        "display_desc": "720P",
        "superscript": "",
        "codecs": null
      },
      {
        "quality": 32,
        "format": "flv480",
        "new_description": "480P 清晰",
        "display_desc": "480P",
        "superscript": "",
        "codecs": null
      },
      {
        "quality": 16,
        "format": "mp4",
        "new_description": "360P 流畅",
        "display_desc": "360P",
        "superscript": "",
        "codecs": null
      }
    ],
    "high_format": null,
    "last_play_time": 0,
    "last_play_cid": 0
  }
}

视频有分段时：

以下内容无参考价值，仅做历史保存

查看响应示例：

{
    "code": 0,
    "message": "0",
    "ttl": 1,
    "data": {
        "from": "local",
        "result": "suee",
        "message": "",
        "quality": 16,
        "format": "flv360",
        "timelength": 1437918,
        "accept_format": "flv,flv720,flv480,flv360",
        "accept_description": [
            "高清 1080P",
            "高清 720P",
            "清晰 480P",
            "流畅 360P"
        ],
        "accept_quality": [
            80,
            64,
            32,
            16
        ],
        "video_codecid": 7,
        "seek_param": "start",
        "seek_type": "offset",
        "durl": [
            {
                "order": 1,
                "length": 364417,
                "size": 23018310,
                "ahead": "",
                "vhead": "",
                "url": "http://upos-sz-mirrorhw.bilivideo.com/upgcxcode/98/24/872498/872498-1-15.flv?e=ig8euxZM2rNcNbRB7zUVhoM17WuBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=hwbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=f99db2dc9b8c65c245515b29b9ca8b16&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=80000000",
                "backup_url": [
                    "http://upos-sz-mirrorks3c.bilivideo.com/upgcxcode/98/24/872498/872498-1-15.flv?e=ig8euxZM2rNcNbRB7zUVhoM17WuBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=ks3cbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=74d0d62697364346f88d9c39430ce23c&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=40000000"
                ]
            },
            {
                "order": 2,
                "length": 364395,
                "size": 23694756,
                "ahead": "",
                "vhead": "",
                "url": "http://upos-sz-mirrorcos.bilivideo.com/upgcxcode/98/24/872498/872498-2-15.flv?e=ig8euxZM2rNcNbRjhbUVhoM17bNBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=cosbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=308c87c55f3325bdaac2a3e8632948ee&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=80000000",
                "backup_url": [
                    "http://upos-sz-mirrorks3c.bilivideo.com/upgcxcode/98/24/872498/872498-2-15.flv?e=ig8euxZM2rNcNbRjhbUVhoM17bNBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=ks3cbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=eb8f043e0f36f82ab9c62fd002143438&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=40000000"
                ]
            },
            {
                "order": 3,
                "length": 352333,
                "size": 22835734,
                "ahead": "",
                "vhead": "",
                "url": "http://upos-sz-mirrorhw.bilivideo.com/upgcxcode/98/24/872498/872498-3-15.flv?e=ig8euxZM2rNcNbRjhwdVhoM17bdVhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=hwbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=2685b7649f4bb6eb90f986f125432d78&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=80000000",
                "backup_url": [
                    "http://upos-sz-mirrorks3c.bilivideo.com/upgcxcode/98/24/872498/872498-3-15.flv?e=ig8euxZM2rNcNbRjhwdVhoM17bdVhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=ks3cbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=922543bfb26184f901187bf9c39c69b2&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=40000000"
                ]
            },
            {
                "order": 4,
                "length": 356773,
                "size": 23466279,
                "ahead": "",
                "vhead": "",
                "url": "http://upos-sz-mirrorkodo.bilivideo.com/upgcxcode/98/24/872498/872498-4-15.flv?e=ig8euxZM2rNcNbRjhbUVhoM17bNBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=kodobv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=9d29707faf012797ef2b6de21523fcf2&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=80000000",
                "backup_url": [
                    "http://upos-sz-mirrorks3c.bilivideo.com/upgcxcode/98/24/872498/872498-4-15.flv?e=ig8euxZM2rNcNbRjhbUVhoM17bNBhwdEto8g5X10ugNcXBlqNxHxNEVE5XREto8KqJZHUa6m5J0SqE85tZvEuENvNo8g2ENvNo8i8o859r1qXg8xNEVE5XREto8GuFGv2U7SuxI72X6fTr859r1qXg8gNEVE5XREto8z5JZC2X2gkX5L5F1eTX1jkXlsTXHeux_f2o859IB_&uipk=5&nbs=1&deadline=1589874109&gen=playurl&os=ks3cbv&oi=1965551630&trid=ceac015d41e04a7b90ec972db710524fu&platform=pc&upsig=9ad4524d31c8d9695ae07b400b73ed29&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=40000000"
                ]
            }
        ]
    }
}

DASH格式

data中的dash对象：

字段	类型	内容	备注
duration	num	视频长度	秒值
minBufferTime	num	1.5？
min_buffer_time	num	1.5？
video	array	视频流信息
audio	array	伴音流信息	当视频没有音轨时，此项为 null
dolby	obj	杜比全景声伴音信息
flac	obj	无损音轨伴音信息	当视频没有无损音轨时，此项为 null

dash中的video数组：

项	类型	内容	备注
0	obj	视频码流 1	同一清晰度可拥有 H.264 / H.265 / AV1 多种码流 HDR 仅支持 H.265
n	obj	视频码流（n+1）
……	obj	……

dash中的audio数组：

项	类型	内容
0	obj	清晰度1
n	obj	清晰度（n+1）
……	obj	……

video及audio数组中的对象：

字段	类型	内容	备注
id	num	音视频清晰度代码	参考上表 qn视频清晰度标识视频伴音音质代码
baseUrl	str	默认流 URL	注意 unicode 转义符有效时间为 120min
base_url	str	同上
backupUrl	array	备用流 URL
backup_url	array	同上
bandwidth	num	所需最低带宽	单位为 Byte
mimeType	str	格式 mimetype 类型
mime_type	str	同上
codecs	str	编码/音频类型	eg：`avc1.640032`
width	num	视频宽度	单位为像素仅视频流存在该字段
height	num	视频高度	单位为像素仅视频流存在该字段
frameRate	str	视频帧率	仅视频流存在该字段
frame_rate	str	同上
sar	str	Sample Aspect Ratio（单个像素的宽高比）	音频流该值恒为空
startWithSap	num	Stream Access Point（流媒体访问位点）	音频流该值恒为空
start_with_sap	num	同上
SegmentBase	obj	见下表	url 对应 m4s 文件中，头部的位置音频流该值恒为空
segment_base	obj	同上
codecid	num	码流编码标识代码	含义见上表音频流该值恒为`0`

video数组中的对象中的backup_url数组：

项	类型	内容	备注
0	str	备用流 URL 1	注意 unicode 转义符有效时间为120min
n	str	备用流 URL (n+1)
……	str	……

video数组中的对象中的SegmentBase对象：

字段	类型	内容	备注
initialization	str	`${init_first}-${init_last}`	eg：`0-821` ftyp (file type) box 加上 moov box 在 m4s 文件中的范围（单位为 bytes）如 0-821 表示开头 820 个字节
index_range	str	`${sidx_first}-${sidx_last}`	eg：`822-1309` sidx (segment index) box 在 m4s 文件中的范围（单位为 bytes） sidx 的核心是一个数组，记录了各关键帧的时间戳及其在文件中的位置，其作用是索引 (拖进度条)

常规 MP4 文件的索引信息放在 moov box 中，其中包含每一帧 (不止是关键帧) 的一些信息。在 DASH 方式下，关键帧信息移到了 sidx box 里，其他的则分散到了各个 moof (movie fragment) box 中。

对这里的文件结构感兴趣的，可以参考标准文档 ISO/IEC 14496-12open in new window，如果不想那么深入的话可以百度「MP4 文件结构open in new window」

dash中的dolby对象：

此项为”杜比视界“视频独有

字段	类型	内容	备注
type	num	杜比音效类型	1：普通杜比音效 2：全景杜比音效
audio	array	杜比伴音流列表

dolby对象中的audio数组：

项	类型	内容	备注
0	obj	杜比伴音流信息	同上文 DASH 流中`video`及`audio`数组中的对象

dash中的flac对象：

项	类型	内容	备注
display	bool	是否在播放器显示切换Hi-Res无损音轨按钮
audio	obj	音频流信息	同上文 DASH 流中`video`及`audio`数组中的对象

示例：

获取视频av969628065/BV1rp4y1e745中的 1P（cid=244954665）的视频流 URL，使用 DASH 方式获取

avid 方式：

curl -G 'https://api.bilibili.com/x/player/playurl' \
    --data-urlencode 'avid=969628065' \
    --data-urlencode 'cid=244954665' \
    --data-urlencode 'qn=0' \
    --data-urlencode 'fnval=80' \
    --data-urlencode 'fnver=0' \
    --data-urlencode 'fourk=1' \
    -b 'SESSDATA=xxx'

bvid 方式：

curl -G 'https://api.bilibili.com/x/player/playurl' \
    --data-urlencode 'bvid=BV1rp4y1e745' \
    --data-urlencode 'cid=244954665' \
    --data-urlencode 'qn=0' \
    --data-urlencode 'fnval=80' \
    --data-urlencode 'fnver=0' \
    --data-urlencode 'fourk=1' \
    -b 'SESSDATA=xxx'

查看响应示例：

{
    "code": 0,
    "message": "0",
    "ttl": 1,
    "data": {
        "from": "local",
        "result": "suee",
        "message": "",
        "quality": 64,
        "format": "flv720_p60",
        "timelength": 346410,
        "accept_format": "hdflv2,hdflv2,flv_p60,flv,flv720_p60,flv480,mp4",
        "accept_description": [
            "真彩 HDR",
            "超清 4K",
            "高清 1080P60",
            "高清 1080P",
            "高清 720P60",
            "清晰 480P",
            "流畅 360P"
        ],
        "accept_quality": [
            125,
            120,
            116,
            80,
            64,
            32,
            16
        ],
        "video_codecid": 7,
        "seek_param": "start",
        "seek_type": "offset",
        "dash": {
            "duration": 347,
            "minBufferTime": 1.5,
            "min_buffer_time": 1.5,
            "video": [
                {
                    "id": 125,
                    "baseUrl": "https://cn-jxjj-ct-01-01.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=bcache&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=f144133cabdfca56ae3cb14e208aebe1&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&cdnid=4261&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=80000000",
                    "base_url": "https://cn-jxjj-ct-01-01.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=bcache&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=f144133cabdfca56ae3cb14e208aebe1&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&cdnid=4261&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=80000000",
                    "backupUrl": [
                        "https://upos-sz-estgoss.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=upos&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=adf8ac03ae8aaf0e18c0f4c3f0ff267c&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=40000000",
                        "https://upos-sz-mirrorali.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=alibv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=cffdcf6daf7f55c58bdb97737694363f&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=40000000"
                    ],
                    "backup_url": [
                        "https://upos-sz-estgoss.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=upos&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=adf8ac03ae8aaf0e18c0f4c3f0ff267c&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=40000000",
                        "https://upos-sz-mirrorali.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=alibv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=cffdcf6daf7f55c58bdb97737694363f&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=40000000"
                    ],
                    "bandwidth": 13799375,
                    "mimeType": "video/mp4",
                    "mime_type": "video/mp4",
                    "codecs": "hev1.2.4.L156.90",
                    "width": 3840,
                    "height": 1920,
                    "frameRate": "125",
                    "frame_rate": "125",
                    "sar": "1:1",
                    "startWithSap": 1,
                    "start_with_sap": 1,
                    "SegmentBase": {
                        "Initialization": "0-1066",
                        "indexRange": "1067-1926"
                    },
                    "segment_base": {
                        "initialization": "0-1066",
                        "index_range": "1067-1926"
                    },
                    "codecid": 12
                },
                {
                    "id": 120,
                    "baseUrl": "https://cn-jxjj-ct-01-01.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=bcache&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=704c0a56e544a9e5ba42813960780304&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&cdnid=4261&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=80000000",
                    "base_url": "https://cn-jxjj-ct-01-01.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=bcache&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=704c0a56e544a9e5ba42813960780304&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&cdnid=4261&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=80000000",
                    "backupUrl": [
                        "https://upos-sz-mirrorcoso1.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=coso1bv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=56ddf7293e93985ff0abdc8de74ddbea&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=40000000",
                        "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=cosbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=e35a421cf5209011191984cab0336ade&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=40000000"
                    ],
                    "backup_url": [
                        "https://upos-sz-mirrorcoso1.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=coso1bv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=56ddf7293e93985ff0abdc8de74ddbea&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=40000000",
                        "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30120.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=cosbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=e35a421cf5209011191984cab0336ade&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=2124046&logo=40000000"
                    ],
                    "bandwidth": 16974415,
                    "mimeType": "video/mp4",
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                        "https://upos-sz-mirrorali.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=alibv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=e876c0a1b414c68f1e8a8c986e9de72e&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=41220&logo=40000000"
                    ],
                    "bandwidth": 329376,
                    "mimeType": "audio/mp4",
                    "mime_type": "audio/mp4",
                    "codecs": "mp4a.40.2",
                    "width": 0,
                    "height": 0,
                    "frameRate": "",
                    "frame_rate": "",
                    "sar": "",
                    "startWithSap": 0,
                    "start_with_sap": 0,
                    "SegmentBase": {
                        "Initialization": "0-907",
                        "indexRange": "908-1779"
                    },
                    "segment_base": {
                        "initialization": "0-907",
                        "index_range": "908-1779"
                    },
                    "codecid": 0
                },
                {
                    "id": 30216,
                    "baseUrl": "https://xy125x75x230x185xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=mcdn&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=c61129748923407b50d98357e2925ec5&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&mcdnid=1002708&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=A0000001",
                    "base_url": "https://xy125x75x230x185xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=mcdn&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=c61129748923407b50d98357e2925ec5&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&mcdnid=1002708&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=A0000001",
                    "backupUrl": [
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=733c928a078ae018899ebf9de87eecf4&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=40000000",
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=733c928a078ae018899ebf9de87eecf4&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=40000000"
                    ],
                    "backup_url": [
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=733c928a078ae018899ebf9de87eecf4&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=40000000",
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=733c928a078ae018899ebf9de87eecf4&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=8419&logo=40000000"
                    ],
                    "bandwidth": 67279,
                    "mimeType": "audio/mp4",
                    "mime_type": "audio/mp4",
                    "codecs": "mp4a.40.2",
                    "width": 0,
                    "height": 0,
                    "frameRate": "",
                    "frame_rate": "",
                    "sar": "",
                    "startWithSap": 0,
                    "start_with_sap": 0,
                    "SegmentBase": {
                        "Initialization": "0-941",
                        "indexRange": "942-1813"
                    },
                    "segment_base": {
                        "initialization": "0-941",
                        "index_range": "942-1813"
                    },
                    "codecid": 0
                },
                {
                    "id": 30232,
                    "baseUrl": "https://xy125x75x230x185xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=mcdn&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=6682acc0dc48f4ac7d397861c537feab&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&mcdnid=1002708&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=A0000001",
                    "base_url": "https://xy125x75x230x185xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=mcdn&oi=606633952&trid=000077eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=6682acc0dc48f4ac7d397861c537feab&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&mcdnid=1002708&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=A0000001",
                    "backupUrl": [
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=80a5d0e507dddbe424c2394593bd9324&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=40000000",
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=80a5d0e507dddbe424c2394593bd9324&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=40000000"
                    ],
                    "backup_url": [
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=80a5d0e507dddbe424c2394593bd9324&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=1,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=40000000",
                        "https://upos-sz-mirror08ct.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30232.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674133321&gen=playurlv2&os=08ctbv&oi=606633952&trid=77eca41ddc4a4dc6926e971dfacc597cu&mid=293793435&platform=pc&upsig=80a5d0e507dddbe424c2394593bd9324&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&bvc=vod&nettype=0&orderid=2,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=16615&logo=40000000"
                    ],
                    "bandwidth": 132768,
                    "mimeType": "audio/mp4",
                    "mime_type": "audio/mp4",
                    "codecs": "mp4a.40.2",
                    "width": 0,
                    "height": 0,
                    "frameRate": "",
                    "frame_rate": "",
                    "sar": "",
                    "startWithSap": 0,
                    "start_with_sap": 0,
                    "SegmentBase": {
                        "Initialization": "0-907",
                        "indexRange": "908-1779"
                    },
                    "segment_base": {
                        "initialization": "0-907",
                        "index_range": "908-1779"
                    },
                    "codecid": 0
                }
            ],
            "dolby": {
                "type": 0,
                "audio": null
            },
            "flac": null
        },
        "support_formats": [
            {
                "quality": 125,
                "format": "hdflv2",
                "new_description": "HDR 真彩",
                "display_desc": "HDR",
                "superscript": "",
                "codecs": [
                    "hev1.2.4.L156.90"
                ]
            },
            {
                "quality": 120,
                "format": "hdflv2",
                "new_description": "4K 超清",
                "display_desc": "4K",
                "superscript": "",
                "codecs": [
                    "avc1.640034",
                    "hev1.1.6.L156.90"
                ]
            },
            {
                "quality": 116,
                "format": "flv_p60",
                "new_description": "1080P 60帧",
                "display_desc": "1080P",
                "superscript": "60帧",
                "codecs": [
                    "avc1.640032",
                    "hev1.1.6.L150.90"
                ]
            },
            {
                "quality": 80,
                "format": "flv",
                "new_description": "1080P 高清",
                "display_desc": "1080P",
                "superscript": "",
                "codecs": [
                    "avc1.640032",
                    "hev1.1.6.L150.90"
                ]
            },
            {
                "quality": 64,
                "format": "flv720_p60",
                "new_description": "720P 60帧",
                "display_desc": "720P",
                "superscript": "60帧",
                "codecs": [
                    "avc1.640028",
                    "hev1.1.6.L120.90"
                ]
            },
            {
                "quality": 32,
                "format": "flv480",
                "new_description": "480P 清晰",
                "display_desc": "480P",
                "superscript": "",
                "codecs": [
                    "avc1.64001F",
                    "hev1.1.6.L120.90"
                ]
            },
            {
                "quality": 16,
                "format": "mp4",
                "new_description": "360P 流畅",
                "display_desc": "360P",
                "superscript": "",
                "codecs": [
                    "avc1.64001E",
                    "hev1.1.6.L120.90"
                ]
            }
        ],
        "high_format": null,
        "last_play_time": 0,
        "last_play_cid": 0
    }
}

视频取流说明

关于拉流：

MP4 / ~~FLV~~ 格式仅需拉视频流，DASH 格式需同时拉视频与伴音流
如 DASH 格式需要杜比或无损的伴音，需要取对应dolby或flac字段中的流
注意 Unicode 转义符

~~关于分段：~~

~~FLV 格式可能产生分段情况，将$.data.durl[1-n].url或$.data.durl[1-n].backup_url[0]中的内容作为 URL 进行 GET 请求进行分段播放，如需下载需要合并~~（FLV 格式已下线，不会存在分段现象）

关于鉴权：

WEB 端取流需要验证防盗链，即referer为 .bilibili.com域名下且 UA 不能为空
APP 端也需要验证防盗链，即 UA 需要含有Mozilla/5.0 BiliDroid/*.*.* (bbcallen@gmail.com)（*为版本）
如referer或 UA 错误的情况会被判定为盗链，返回403 Forbidden故无法取流
若传platform=html5参数取流，则不会进行防盗链验证，即可通过 HTML 标签<video>播放

实例：

下载 ~~FLV~~ / MP4 格式视频：

wget 'http://upos-sz-mirrorhw.bilivideo.com/upgcxcode/08/62/171776208/171776208-1-112.flv?e=ig8euxZM2rNcNbhMnwhVhwdlhzK3hzdVhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1589565412&gen=playurl&os=hwbv&oi=606631998&trid=e0fa5f9a7610440a871279a28fae85aau&platform=pc&upsig=5f469cb4c190ed54b89bd40cc37eddff&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&mid=293793435&logo=80000000' \
    -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
    --referer 'https://www.bilibili.com' \
    -O 'Download_video.flv'

下载 DASH 格式视频：

# 下载视频流
wget 'https://cn-jxjj-ct-01-01.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-30125.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674137769&gen=playurlv2&os=bcache&oi=606633952&trid=0000524e9cc80dea41dca72b59782270b5d3u&mid=293793435&platform=pc&upsig=c4206c80b1d0dc18c0545a7758d56eee&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&cdnid=4261&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=1726751&logo=80000000' \
    -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
    --referer 'https://www.bilibili.com' \
    -O 'video.m4s'
# 下载伴音流
wget 'https://xy125x75x230x185xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&uipk=5&nbs=1&deadline=1674137769&gen=playurlv2&os=mcdn&oi=606633952&trid=0000524e9cc80dea41dca72b59782270b5d3u&mid=293793435&platform=pc&upsig=e5feff4626de4c6fd2ed9c6061c324a0&uparams=e,uipk,nbs,deadline,gen,os,oi,trid,mid,platform&mcdnid=1002708&bvc=vod&nettype=0&orderid=0,3&buvid=EC1BD8EA-88F6-4951-BF27-2CFE3450C78F167646infoc&build=0&agrr=0&bw=41220&logo=A0000001' \
    -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
    --referer 'https://www.bilibili.com' \
    -O 'audio.m4s'
# 进行混流
ffmpeg -i video.m4s -i audio.m4s -c:v copy -c:a copy -f mp4 Download_video.mp4

# 视频流URL

# qn视频清晰度标识

# fnver视频流版本标识

# fnval视频流格式标识

# 视频编码代码

# 视频伴音音质代码

# 获取视频流地址_web端

# FLV/MP4格式

# DASH格式

# 视频取流说明

视频流URL

qn视频清晰度标识

fnver视频流版本标识

fnval视频流格式标识

视频编码代码

视频伴音音质代码

获取视频流地址_web端

FLV/MP4格式

DASH格式

视频取流说明