bac

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

又注: B站对于新的视频更新了播放设置, 较高分辨率均采用 DASH, 较低分辨率与老视频还保留了 MP4, 这导致较新视频无法获取 MP4 格式的高分辨率视频, 参见 #606 或 cv949156

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
100 智能修复 人工智能增强画质
大会员认证
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
4048 所有可用 DASH 视频流 即一次性返回所有可用 DASH 格式视频流

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 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  
gaia_source str view-card
pre-load		 必要(非必要) 有Cookie(SESSDATA)时无需此参数
暂未找到两个内容值区别
isGaiaAvoided bool true/false 非必要 未知作用
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 中设置 window.__playinfo__ 处获取，或者通过 buvid3 + 当前UNIX毫秒级时间戳 经过md5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
try_look num 未登录高画质 非必要 为 1 时可以不登录拉到 64 和 80 清晰度

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
v_voucher str (?) 需要参数gaia_source
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 备注
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 备注
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： ```json { "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： ```json { "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 备注
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 14496-12，如果不想那么深入的话可以百度「MP4 文件结构」

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 'fnval=4048' \ # 4048 为所有 dash 选项或运算的结果
    --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 'fnval=4048' \
    --data-urlencode 'fnver=0' \
    --data-urlencode 'fourk=1' \
    -b 'SESSDATA=xxx'
查看响应示例： ```json { "code": 0, "message": "0", "ttl": 1, "data": { "from": "local", "result": "suee", "message": "", "quality": 64, "format": "flv720", "timelength": 346495, "accept_format": "hdflv2,hdflv2,flv_p60,flv,flv720,flv480,mp4", "accept_description": [ "真彩 HDR", "超清 4K", "高清 1080P60", "高清 1080P", "高清 720P", "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": 80, "baseUrl": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=hw\u0026oi=3028829496\u0026tag=\u0026nbs=1\u0026gen=playurlv3\u0026uipk=5\u0026os=mcdn\u0026platform=pc\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026mid=59442895\u0026deadline=1745411269\u0026upsig=71821c3a1f0d596b8a0f79861695de67\u0026uparams=e,og,oi,tag,nbs,gen,uipk,os,platform,trid,mid,deadline\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026orderid=0,3", "base_url": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=hw\u0026oi=3028829496\u0026tag=\u0026nbs=1\u0026gen=playurlv3\u0026uipk=5\u0026os=mcdn\u0026platform=pc\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026mid=59442895\u0026deadline=1745411269\u0026upsig=71821c3a1f0d596b8a0f79861695de67\u0026uparams=e,og,oi,tag,nbs,gen,uipk,os,platform,trid,mid,deadline\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026orderid=0,3", "backupUrl": [ "https://upos-sz-mirror08c.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026mid=59442895\u0026uipk=5\u0026gen=playurlv3\u0026os=08cbv\u0026og=hw\u0026deadline=1745411269\u0026tag=\u0026nbs=1\u0026upsig=585675af7dc762a4d21572f939196248\u0026uparams=e,platform,trid,oi,mid,uipk,gen,os,og,deadline,tag,nbs\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026orderid=1,3", "https://upos-sz-mirror08c.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026oi=3028829496\u0026nbs=1\u0026uipk=5\u0026gen=playurlv3\u0026platform=pc\u0026mid=59442895\u0026deadline=1745411269\u0026tag=\u0026os=08cbv\u0026og=hw\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026upsig=9fc6a3e3e0eaf3847c5c0f1c32047c09\u0026uparams=e,oi,nbs,uipk,gen,platform,mid,deadline,tag,os,og,trid\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=2,3" ], "backup_url": [ "https://upos-sz-mirror08c.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026mid=59442895\u0026uipk=5\u0026gen=playurlv3\u0026os=08cbv\u0026og=hw\u0026deadline=1745411269\u0026tag=\u0026nbs=1\u0026upsig=585675af7dc762a4d21572f939196248\u0026uparams=e,platform,trid,oi,mid,uipk,gen,os,og,deadline,tag,nbs\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026orderid=1,3", "https://upos-sz-mirror08c.bilivideo.com/upgcxcode/65/46/244954665/244954665_f9-1-100113.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026oi=3028829496\u0026nbs=1\u0026uipk=5\u0026gen=playurlv3\u0026platform=pc\u0026mid=59442895\u0026deadline=1745411269\u0026tag=\u0026os=08cbv\u0026og=hw\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026upsig=9fc6a3e3e0eaf3847c5c0f1c32047c09\u0026uparams=e,oi,nbs,uipk,gen,platform,mid,deadline,tag,os,og,trid\u0026bvc=vod\u0026nettype=0\u0026bw=773719\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=2,3" ], "bandwidth": 772828, "mimeType": "video/mp4", "mime_type": "video/mp4", "codecs": "hev1.1.6.L150.90", "width": 1920, "height": 960, "frameRate": "30.303", "frame_rate": "30.303", "sar": "1:1", "startWithSap": 1, "start_with_sap": 1, "SegmentBase": { "Initialization": "0-1159", "indexRange": "1160-2019" }, "segment_base": { "initialization": "0-1159", "index_range": "1160-2019" }, "codecid": 12 }, { "id": 80, "baseUrl": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_nb3-1-30080.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026deadline=1745411269\u0026uipk=5\u0026og=cos\u0026gen=playurlv3\u0026os=mcdn\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026upsig=134e6b8516a05db7ef97a18b68b94cb5\u0026uparams=e,platform,deadline,uipk,og,gen,os,trid,oi,mid,tag,nbs\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=1918964\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026agrr=1\u0026orderid=0,3", "base_url": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_nb3-1-30080.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026deadline=1745411269\u0026uipk=5\u0026og=cos\u0026gen=playurlv3\u0026os=mcdn\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026upsig=134e6b8516a05db7ef97a18b68b94cb5\u0026uparams=e,platform,deadline,uipk,og,gen,os,trid,oi,mid,tag,nbs\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=1918964\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026agrr=1\u0026orderid=0,3", "backupUrl": [ 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"https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_nb3-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026nbs=1\u0026uipk=5\u0026platform=pc\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026mid=59442895\u0026gen=playurlv3\u0026tag=\u0026os=mcdn\u0026og=cos\u0026deadline=1745411269\u0026upsig=3d3484b4a91783d0d7277e073d947fad\u0026uparams=e,nbs,uipk,platform,trid,oi,mid,gen,tag,os,og,deadline\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=155073\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=0,3", "backupUrl": [ "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026deadline=1745411269\u0026tag=\u0026gen=playurlv3\u0026os=cosbv\u0026platform=pc\u0026mid=59442895\u0026nbs=1\u0026uipk=5\u0026upsig=f7cc870e2a4925c24e46ad9425cf39a8\u0026uparams=e,og,trid,oi,deadline,tag,gen,os,platform,mid,nbs,uipk\u0026bvc=vod\u0026nettype=0\u0026bw=155073\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=1,3", "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=cos\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026platform=pc\u0026gen=playurlv3\u0026os=cosbv\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026deadline=1745411269\u0026uipk=5\u0026upsig=d380844ae7ac21f8484650ba59a15d97\u0026uparams=e,og,mid,tag,nbs,platform,gen,os,trid,oi,deadline,uipk\u0026bvc=vod\u0026nettype=0\u0026bw=155073\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026orderid=2,3" ], "backup_url": [ "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026deadline=1745411269\u0026tag=\u0026gen=playurlv3\u0026os=cosbv\u0026platform=pc\u0026mid=59442895\u0026nbs=1\u0026uipk=5\u0026upsig=f7cc870e2a4925c24e46ad9425cf39a8\u0026uparams=e,og,trid,oi,deadline,tag,gen,os,platform,mid,nbs,uipk\u0026bvc=vod\u0026nettype=0\u0026bw=155073\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=1,3", "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026og=cos\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026platform=pc\u0026gen=playurlv3\u0026os=cosbv\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026deadline=1745411269\u0026uipk=5\u0026upsig=d380844ae7ac21f8484650ba59a15d97\u0026uparams=e,og,mid,tag,nbs,platform,gen,os,trid,oi,deadline,uipk\u0026bvc=vod\u0026nettype=0\u0026bw=155073\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026f=u_0_0\u0026orderid=2,3" ], "bandwidth": 154889, "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": "0-933", "indexRange": "934-1805" }, "segment_base": { "initialization": "0-933", "index_range": "934-1805" }, "codecid": 0 }, { "id": 30216, "baseUrl": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026os=mcdn\u0026deadline=1745411269\u0026tag=\u0026nbs=1\u0026uipk=5\u0026mid=59442895\u0026gen=playurlv3\u0026og=cos\u0026upsig=77babed89168a38118c16f99396e3fb6\u0026uparams=e,platform,trid,oi,os,deadline,tag,nbs,uipk,mid,gen,og\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=0,3", "base_url": "https://xy113x200x108x47xy.mcdn.bilivideo.cn:4483/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026platform=pc\u0026trid=0000cc6424a6fb564074a7704d5b300496eu\u0026oi=3028829496\u0026os=mcdn\u0026deadline=1745411269\u0026tag=\u0026nbs=1\u0026uipk=5\u0026mid=59442895\u0026gen=playurlv3\u0026og=cos\u0026upsig=77babed89168a38118c16f99396e3fb6\u0026uparams=e,platform,trid,oi,os,deadline,tag,nbs,uipk,mid,gen,og\u0026mcdnid=50017754\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=0,3", "backupUrl": [ "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026gen=playurlv3\u0026os=cosbv\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026oi=3028829496\u0026deadline=1745411269\u0026uipk=5\u0026platform=pc\u0026upsig=d76799fe0f76dea02c775c8667fc3f82\u0026uparams=e,gen,os,og,trid,mid,tag,nbs,oi,deadline,uipk,platform\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=1,3", "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026os=cosbv\u0026nbs=1\u0026uipk=5\u0026platform=pc\u0026oi=3028829496\u0026mid=59442895\u0026tag=\u0026gen=playurlv3\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026deadline=1745411269\u0026upsig=5cb2a5242aa474a5a0ba70e16b3d04f6\u0026uparams=e,os,nbs,uipk,platform,oi,mid,tag,gen,og,trid,deadline\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=2,3" ], "backup_url": [ "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026gen=playurlv3\u0026os=cosbv\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026mid=59442895\u0026tag=\u0026nbs=1\u0026oi=3028829496\u0026deadline=1745411269\u0026uipk=5\u0026platform=pc\u0026upsig=d76799fe0f76dea02c775c8667fc3f82\u0026uparams=e,gen,os,og,trid,mid,tag,nbs,oi,deadline,uipk,platform\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=1,3", "https://upos-sz-mirrorcos.bilivideo.com/upgcxcode/65/46/244954665/244954665_nb3-1-30216.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=\u0026os=cosbv\u0026nbs=1\u0026uipk=5\u0026platform=pc\u0026oi=3028829496\u0026mid=59442895\u0026tag=\u0026gen=playurlv3\u0026og=cos\u0026trid=cc6424a6fb564074a7704d5b300496eu\u0026deadline=1745411269\u0026upsig=5cb2a5242aa474a5a0ba70e16b3d04f6\u0026uparams=e,os,nbs,uipk,platform,oi,mid,tag,gen,og,trid,deadline\u0026bvc=vod\u0026nettype=0\u0026bw=31750\u0026f=u_0_0\u0026agrr=1\u0026buvid=\u0026build=0\u0026dl=0\u0026orderid=2,3" ], "bandwidth": 31705, "mimeType": "audio/mp4", "mime_type": "audio/mp4", "codecs": "mp4a.40.5", "width": 0, "height": 0, "frameRate": "", "frame_rate": "", "sar": "", "startWithSap": 0, "start_with_sap": 0, "SegmentBase": { "Initialization": "0-943", "indexRange": "944-1815" }, "segment_base": { "initialization": "0-943", "index_range": "944-1815" }, "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", "new_description": "720P 高清", "display_desc": "720P", "superscript": "", "codecs": [ "avc1.640020", "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, "view_info": null, "play_conf": { "is_new_description": false } } } ```

视频取流说明

关于拉流：

  1. MP4 / FLV 格式仅需拉视频流，DASH 格式需同时拉视频与伴音流
  2. 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
  3. 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：

  1. 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
  2. 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）
  3. 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
  4. 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
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