CCMI URLs

Edgeware’s origin URL format is called CCMI URLs and is the format that StreamBuilder understands. A typical URL looks like:

http://<server>/__cl/<cl>/__c/<content>/__op/<op>/__f/<pres><ext>

where the different parts are indicated by prefixes starting with two underscores, and where the file extension <ext> starts with a period if present.

The most important StreamBuilder fields are:

__cl : content location with parts prefix:name
       + cg:<live> stands for channel group <live> and denote a group
         of live channels configured with the name <live>
       + s:<vod> stands for a storage path for vod assets
__c  : the actual content or asset path (can contain slashes)
__op : output profile `<op>`, defining the encryption/DRM system or segment addressing
       Segments with different output profiles are not compatible
__f : the file path but also the way to choose a presentation.
      A presentation is a manifest variation, for example exluding some variants.
      The segments can be the same between presentation.
      The extensions ".m3u8" maps to HLS, ".mpd" maps to DASH and "Manifest" or
      ".ism/Manifest" map to MSS

The <pres> part is matched to a presentation configured in repackager. The <live>, <vod>, <op> are also defined in the repackager configuration.

For segments, the URLs are further enhanced with a config_id (for live/catchup), a variant, and a segment number (for HLS and DASH with $Number$)

__f/<cfg_id>/<variant>/<nr>.cmfv
__f/<cfg_id>/<variant>/<nr>.ts

or with a time (for DASH and MSS)

__f/<cfg_id>/<variant>/D<time>.cmfv
__f/<cfg_id>/QualityLevels({bitrate})/Fragments(video={start time})

In addition, there are other possible parts like

__dci : DRM Content ID - an id used to lookup the key from license server
__account : Account to distinguish different tenants

Finally, there are query parameters for time intervals

?startTime=
?stopTime=

and query parameters for variant flags mask

?p=<variant_flags_mask>

In addition, there may also be a part ?pre=1 that triggers ESB3020 - ew-manip.