Adaptive bitrate management on progressive download with indexed media files

A server configured to receive streaming media data having an original media frame, an original frame index referencing the original media frame, and an original file index, the server comprising:

• an adaptive bitrate controller module configured to determine an optimal session bitrate, wherein the optimal session bitrate is based on the available network bandwidth between a server and a terminal;
• a frame budget algorithm module configured to allocate a frame budget for an output media frame by estimating a frame size of the output media frame based on the original frame index and the optimal session bitrate, wherein the frame budget represents estimated size of the output media frame;
• a quantization algorithm module configured to determine first encoder parameters based on the frame budget, the optimal session bitrate, and the original media frame;
• an encoder configured to encode the media frame based on the first processing parameters;
• a frame padder configured to pad the processed media frame to generate the output media frame;
• a file index generator configured to generate an output file index based on the frame budget and the original file index;
• and
• a frame writer configured to provide the output media frame associated with the output file index.

A non-transitory computer readable medium that stores a set of instructions that is executable by at least one processor of a server to cause the server to perform a method, the method comprising:

• receiving streaming media data having an original media frame, an original frame index referencing the original media frame, and an original file index;
• determining an optimal session bitrate, wherein the optimal session bitrate is based on the available network bandwidth between a server and a terminal;
• allocating a frame budget for an output media frame by estimating a frame size of the output media frame based on the original frame index and the optimal session bitrate, wherein the frame budget represents estimated size of the output media frame;
• generating the output media frame by processing the original media frame based on first encoding parameters and, if the allocated frame budget is greater than a frame size of the processed media frame, padding the processed media frame;
• generating an output file index based on the frame budget and the original file index;
• and
• providing the output media frame associated with the output file index.