Priority-based tile transmission system and method for panoramic video streaming

1. A device, comprising:

a processing system including a processor; and

a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:

receiving a request that identifies a first list of tiles for streaming a panoramic video;

determining a first total number of data packets required to transmit tiles in the first list of tiles;

maintaining a second total number of empty data packets enqueued into a transport control protocol (TCP) buffer;

maintaining a third total number of empty data packets dequeued from the TCP buffer; and

enqueuing empty data packets into the TCP buffer whenever the first total number of data packets is greater than a difference between the second total number of empty data packets and the third total number of empty data packets.

2. The device of claim 1 , wherein the operations further comprise:

filling an empty data packet dequeued from the TCP buffer with data from the tiles in the first list of tiles to form a transmission data packet; and

sending the transmission data packet over a network to a panoramic video client application.

3. The device of claim 2 , wherein the operations further comprise:

receiving an updated request identifying a new list of tiles; and

updating the first total number of data packets with a number of data packets required to transmit the tiles in the new list of tiles.

4. The device of claim 3 , wherein the operations further comprise:

marking an empty data packet dequeued from the TCP buffer with an identifier to form an empty transmission data packet; and

sending the empty transmission data packet over the network to the panoramic video client application.

5. The device of claim 1 , wherein the processing system comprises a plurality of processors operating in a distributed processing environment, and wherein the panoramic video is streamed using a dynamic adaptive streaming over hypertext transport protocol (DASH).

6. The device of claim 1 , wherein the operations further comprise ranking the tiles in the first list of tiles for an order of transmission.

7. The device of claim 6 , wherein the ranking is based chronologically.

8. The device of claim 7 , wherein the ranking is further based on a size of an area of a projection of each tile in the first list of tiles.

9. The device of claim 8 , wherein the first list of tiles is formed from an equi-rectangular projection.

10. The device of claim 8 , wherein the first list of tiles is formed from a cube map projection.

11. A machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, the operations comprising:

determining a first total number of data packets required to transmit tiles in a first list of tiles received from a video player application for streaming a panoramic video over a network;

maintaining a second total number of empty data packets enqueued into a transport control protocol (TCP) buffer;

maintaining a third total number of empty data packets dequeued from the TCP buffer; and

enqueuing empty data packets into the TCP buffer whenever the first total number of data packets is greater than a difference between the second total number of empty data packets and the third total number of empty data packets.

12. The machine-readable medium of claim 11 , wherein the operations further comprise:

receiving a new list of tiles; and

updating the first total number of data packets with a number of data packets required to transmit tiles in the new list of tiles.

13. The machine-readable medium of claim 12 , wherein the operations further comprise:

marking an empty data packet dequeued from the TCP buffer with an identifier to form an empty transmission data packet; and

sending the empty transmission data packet over the network to the video player application.

14. The machine-readable medium of claim 11 , wherein the operations further comprise:

filling an empty data packet dequeued from the TCP buffer with data from the tiles in the first list of tiles to form a transmission data packet; and

sending the transmission data packet over a network to the video player application.

15. The machine-readable medium of claim 14 , wherein the processing system comprises a plurality of processors operating in a distributed processing environment, and wherein the operations further comprise: ranking the tiles in the first list of tiles for an order of transmission.

16. The machine-readable medium of claim 15 , wherein the ranking is based chronologically.

17. The machine-readable medium of claim 16 , wherein the ranking is further based on a size of an area of a projection of each tile in the first list of tiles.

18. A method, comprising:

receiving, by a processing system including a processor, a new list of tiles for streaming a panoramic video over a network;

calculating, by the processing system, a total number of data packets to send data for tiles in the new list of tiles;

enqueuing, by the processing system, empty data packets in a transmission control protocol (TCP) buffer whenever there are fewer data packets in the TCP buffer than the total number of data packets;

dequeuing, by the processing system, an empty data packet from the TCP buffer;

determining, by the processing system, whether a tile associated with a next data to send is in the new list of tiles;

filling, by the processing system, the empty data packet with the next data to form a transmission data packet if the tile associated with the next data is in the new list of tiles; and

sending, by the processing system, the transmission data packet over the network.

19. The method of claim 18 , comprising: ranking, by the processing system, tiles in the new list of tiles for an order of transmission.

20. The method of claim 19 , wherein the ranking is based chronologically and then by a size of an area of a projection of the tiles in the new list of tiles.