Activity-based selection of replacement content

A computer-implemented method comprising:

• receiving, by a video streaming service, an input video stream of primary video content;
• receiving, by the video streaming service, a first additional video stream corresponding to an application;
• detecting an indication of a temporary increase in user activity associated with the application;
• determining, by one or more computing devices, based at least in part on the indication of the temporary increase in user activity, to replace a selected portion of the primary video content with secondary video content from the first additional video stream, wherein the selected portion of the primary video content is between a first portion of the primary video content and a second portion of the primary video content;
• and
• providing an output video stream including the first portion of the primary video content, the secondary video content, and the second portion of the primary video content, wherein the secondary video content replaces the selected portion of the primary video content in the output video stream.

One or more non-transitory computer-readable storage media having stored thereon computing instructions that, upon execution by one or more computing devices, cause the one or more computing devices to perform operations comprising:

• receiving, by a video streaming service, an input video stream of primary video content;
• receiving, by the video streaming service, a first additional video stream corresponding to an application;
• detecting an indication of a temporary increase in user activity associated with the application;
• determining, by one or more computing devices, based at least in part on the indication of the temporary increase in user activity, to replace a selected portion of the primary video content with secondary video content from the first additional video stream, wherein the selected portion of the primary video content is between a first portion of the primary video content and a second portion of the primary video content;
• and
• providing an output video stream including the first portion of the primary video content, the secondary video content, and the second portion of the primary video content, wherein the secondary video content replaces the selected portion of the primary video content in the output video stream.