Systems and methods for providing optimized time scales and accurate presentation time stamps

A system comprising:

• at least one physical processor;
• and
• physical memory comprising computer-executable instructions that, when executed by the physical processor, cause the physical processor to:
• determine, for a plurality of different media items, a current time scale at which each of the media items is encoded, wherein at least two of the plurality of media items are encoded at different frame rates;
• calculate, for the plurality of media items, a unified time scale that provides a constant frame interval for each of the plurality of media items;
• change a selected media item, selected from the plurality of media items, from the current time scale to the unified time scale that provides a constant frame interval for the selected media item;
• and
• stream the selected media item at a variable frame rate, while maintaining the constant frame interval using the unified time scale.

A non-transitory computer-readable medium comprising one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to:

• determine, for a plurality of different media items, a current time scale at which each of the media items is encoded, wherein at least two of the plurality of media items are encoded at different frame rates;
• calculate, for the plurality of media items, a unified time scale that provides a constant frame interval for each of the plurality of media items;
• change a selected media item, selected from the plurality of media items, from the current time scale to the unified time scale that provides a constant frame interval for the selected media item;
• and
• stream the selected media item at a variable frame rate, while maintaining the constant frame interval using the unified time scale.