Site Support Request: Private Vimeo HLS/DASH streams

[aidalgol]

Checklist

• I'm reporting a new site support request
• I've verified that I'm running youtube-dl version 2020.09.20
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that none of provided URLs violate any copyrights
• I've searched the bugtracker for similar site support requests including closed ones

Example URLs

• Single video: https://125vod-adaptive.akamaized.net/exp=1601120009~acl=%2Fdeadbeef-dead-beef-dead-beefdeadbeef%2F%2A~hmac=deadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef/deadbeef-dead-beef-dead-beefdeadbeef/sep/video/deadbeef,deadbeef,deadbeef,deadbeef,deadbeef/master.json?base64_init=1

Description

Some Patreon "creators" provide paywalled videos hosted on Vimeo using something like HLS or DASH, but with the segments specified in a master.json file instead of a .m3u8 file. Since the only examples I know of are copyrighted and paywalled videos, I have provided a sanitised example of a master.json file below. The only way I know of to get a real example is to subscribe to Red Letter Media's $15 tier and look at any of the $15-tier videos with the browser's network monitor open.

Finally, eMBee/vimeo-download works to download these videos, so some code from that project could be reused for a youtube-dl extractor.

{
  "clip_id": "deadbeef-dead-beef-dead-beefdeadbeef",
  "base_url": "../",
  "video": [
    {
      "id": "deadbeef",
      "base_url": "bc2fbbb3/chop/",
      "format": "mp42",
      "mime_type": "video/mp4",
      "codecs": "avc1.640020",
      "bitrate": 2886000,
      "avg_bitrate": 1855000,
      "duration": 536.7445208333334,
      "framerate": 23.976023976023978,
      "width": 1280,
      "height": 720,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.006,
          "url": "segment-1.m4s",
          "size": 560965
        },
        {
          "start": 6.006,
          "end": 12.012,
          "url": "segment-2.m4s",
          "size": 1478293
        },
        ...
        {
          "start": 534.534,
          "end": 536.7445208333334,
          "url": "segment-90.m4s",
          "size": 32456
        }
      ]
    },
    {
      "id": "deadbeef",
      "base_url": "1b6c65f8/chop/",
      "format": "mp42",
      "mime_type": "video/mp4",
      "codecs": "avc1.640028",
      "bitrate": 5901000,
      "avg_bitrate": 4489000,
      "duration": 536.7445208333334,
      "framerate": 23.976023976023978,
      "width": 1920,
      "height": 1080,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.006,
          "url": "segment-1.m4s",
          "size": 1311979
        },
        {
          "start": 6.006,
          "end": 12.012,
          "url": "segment-2.m4s",
          "size": 3441538
        },
        ...
        {
          "start": 534.534,
          "end": 536.7445208333334,
          "url": "segment-90.m4s",
          "size": 49097
        }
      ]
    },
    {
      "id": "deadbeef",
      "base_url": "629852a8/chop/",
      "format": "mp42",
      "mime_type": "video/mp4",
      "codecs": "avc1.64001F",
      "bitrate": 1563000,
      "avg_bitrate": 1063000,
      "duration": 536.7445208333334,
      "framerate": 23.976023976023978,
      "width": 960,
      "height": 540,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.006,
          "url": "segment-1.m4s",
          "size": 348150
        },
        {
          "start": 6.006,
          "end": 12.012,
          "url": "segment-2.m4s",
          "size": 757722
        },
        ...
        {
          "start": 534.534,
          "end": 536.7445208333334,
          "url": "segment-90.m4s",
          "size": 24634
        }
      ]
    },
    {
      "id": "deadbeef",
      "base_url": "6a911752/chop/",
      "format": "mp42",
      "mime_type": "video/mp4",
      "codecs": "avc1.64001E",
      "bitrate": 546000,
      "avg_bitrate": 437000,
      "duration": 536.7445208333334,
      "framerate": 23.976023976023978,
      "width": 640,
      "height": 360,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.006,
          "url": "segment-1.m4s",
          "size": 167338
        },
        {
          "start": 6.006,
          "end": 12.012,
          "url": "segment-2.m4s",
          "size": 328395
        },
        ...
        {
          "start": 534.534,
          "end": 536.7445208333334,
          "url": "segment-90.m4s",
          "size": 15745
        }
      ]
    },
    {
      "id": "deadbeef",
      "base_url": "835380e6/chop/",
      "format": "mp42",
      "mime_type": "video/mp4",
      "codecs": "avc1.640015",
      "bitrate": 341000,
      "avg_bitrate": 262000,
      "duration": 536.7445,
      "framerate": 23.976023976023978,
      "width": 426,
      "height": 240,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.006,
          "url": "segment-1.m4s",
          "size": 103286
        },
        {
          "start": 6.006,
          "end": 12.012,
          "url": "segment-2.m4s",
          "size": 192183
        },
        ...
        {
          "start": 534.534,
          "end": 536.7445,
          "url": "segment-90.m4s",
          "size": 6571
        }
      ]
    }
  ],
  "audio": [
    {
      "id": "deadbeef",
      "base_url": "../audio/bc2fbbb3/chop/",
      "format": "mp42",
      "mime_type": "audio/mp4",
      "codecs": "mp4a.40.2",
      "bitrate": 255000,
      "avg_bitrate": 255000,
      "duration": 536.7466666666667,
      "channels": 2,
      "sample_rate": 48000,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.016,
          "url": "segment-1.m4s",
          "size": 192057
        },
        {
          "start": 6.016,
          "end": 12.010666666666667,
          "url": "segment-2.m4s",
          "size": 190924
        },
        ...
        {
          "start": 534.528,
          "end": 536.7466666666667,
          "url": "segment-90.m4s",
          "size": 70453
        }
      ]
    },
    {
      "id": "deadbeef",
      "base_url": "../audio/6a911752/chop/",
      "format": "mp42",
      "mime_type": "audio/mp4",
      "codecs": "mp4a.40.2",
      "bitrate": 128000,
      "avg_bitrate": 127000,
      "duration": 536.7466666666667,
      "channels": 2,
      "sample_rate": 48000,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.016,
          "url": "segment-1.m4s",
          "size": 96121
        },
        {
          "start": 6.016,
          "end": 12.010666666666667,
          "url": "segment-2.m4s",
          "size": 95003
        },
        ...
        {
          "start": 534.528,
          "end": 536.7466666666667,
          "url": "segment-90.m4s",
          "size": 34737
        }
      ]
    },
    {
      "id": "835380e6",
      "base_url": "../audio/835380e6/chop/",
      "format": "mp42",
      "mime_type": "audio/mp4",
      "codecs": "mp4a.40.2",
      "bitrate": 64000,
      "avg_bitrate": 64000,
      "duration": 536.7893333333334,
      "channels": 2,
      "sample_rate": 24000,
      "max_segment_duration": 6,
      "init_segment": "long base64-encoded string",
      "segments": [
        {
          "start": 0,
          "end": 6.016,
          "url": "segment-1.m4s",
          "size": 48410
        },
        {
          "start": 6.016,
          "end": 12.032,
          "url": "segment-2.m4s",
          "size": 47735
        },
        ...
        {
          "start": 534.528,
          "end": 536.7893333333334,
          "url": "segment-90.m4s",
          "size": 17498
        }
      ]
    }
  ]
}