Secondary content transcode pipeline

A tangible, non-transitory, computer-readable medium, comprising computer-readable instructions that, when executed by one or more processors of one or more computers, cause the one or more computers to:

• receive an indication of a source content;
• generate a source content unique identifier (SCID) representative of the source content;
• provide a request, to a media transcoder service, to transcode the source content;
• in response to providing the request to transcode the source content, receive a manifest of a transcoded rendition of the source content;
• create an association between the manifest and the SCID;
• and
• store the association in a transcoded rendition datastore.

A computer-implemented method, comprising:

• receiving a request to insert secondary content into a primary content playback session, wherein the request comprises a unique identifier of the secondary content without an indication of a particular transcoded rendition of the secondary content to insert;
• and
• in response to receiving the request to insert the secondary content into the primary content playback session:
• identifying one or more transcoded rendition selection attributes;
• identifying a set of transcoded renditions associated with the unique identifier that are available in a transcoded rendition datastore;
• selecting a transcoded rendition to insert from the set of transcoded renditions;
• obtaining a manifest of the selected transcoded rendition to insert;
• and
• stitching the manifest of the selected transcoded rendition to insert into a manifest of the primary content playback session.