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Cablecast VOD file naming scheme

Applies to

  • Cablecast (All Versions)

Answer

Prior to Cablecast 5.2.0

Prior to version 5.2.0 Cablecast generated Windows Media files (.wmv) as its video on demand content. In these versions, the name of the transcoded wmv files was exactly the same as the source file from the video server with the file extension changed to wmv. For example, a source file named 123-1-my-awesome-show.mpeg would yield a VOD file with the name 123-1-my-awesome-show.wmv. 

Cablecast 5.2.0 -> 5.2.x

With Cablecast 5.2.0, the output file was changed to a mp4 file and the file name was changed to a much simpler pattern, "<showID>-<Quality>.mp4". For example Show 500 transcoded using the Medium quality would generate a file named 500-Medium.mp4.

Cablecast 5.3.0 -> 5.3.1

In Cablecast 5.3.0, we started including the show title as part of the file name.  For example, Show 123 titled, "Ray's Awesome Show,"  being transcoded at the Low quality setting will yield a file name of 123-Ray's_Awesome_Show-Low.mp4.  

Cablecast 5.3.2+

In 5.3.2, the Show's title was replaced with the original source file name due to length and special character issues resulting from using the Show title.  A version property was also added to the filename in order to prevent browsers from caching older versions of the VOD file. The pattern for generating a VOD filename as of 5.3.2 is "<showid>-<file-name>-<quality>-<version>.mp4" For example a source file of 123-1-my-awesome-show.mpeg transcoded for the second time using a quality of High would yield a VOD file with the name 123-my-awesome-show-high-v2.mp4.

Additional Information

There is no mechanism for configuring how Cablecast generates VOD filenames; however, after a file is transcoded and discovered it is possible to rename the VOD file on disk. The system will discover the original VOD file has been removed and then rediscover the renamed file as long as it begins with the ShowID of show and has the mp4 extension. This process can take a few minutes depending on the number of VODs in your system and the number of items in the VOD queue.

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