Systems, methods, and media for controlling delivery of content
Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.
1. A method for controlling delivery of content through a server, the method comprising:
establishing a connection with a device over one or more communication networks, wherein the connection comprises:
a bandwidth; and
a latency;
receiving, from the device via the connection, a plurality of requests for blocks of content; and
while at least some requests of the plurality of requests are still outstanding:
detecting a change of a service characteristic of the connection, wherein the service characteristic is based on a measurement of the latency and a measurement of the bandwidth;
determining a preferred number of outstanding requests based upon the service characteristic, wherein the outstanding requests are for blocks of varying sizes; and
halting transmission of one or more of the at least some requests that are still outstanding based on:
the preferred number of outstanding requests; and
a count of the at least some requests that are still outstanding.
2. The method of claim 1 , wherein determining the preferred number of outstanding requests is evaluated using expression:
preferred
number
of
requests
=
⌈
t
latency
t
transmisssion
⌉
+
1
;
wherein t latency is the measurement of the latency and t transmission is a transmission time.
3. The method of claim 2 , wherein the transmission time is evaluated using expression:
t
t
r
a
n
s
m
i
s
s
i
o
n
=
block
size
bandwidth
;
wherein block size is a size measurement of a block of content currently being transmitted and bandwidth is the measurement of the bandwidth.
4. The method of claim 1 , wherein the plurality of requests for blocks of content are transmitted using an Open Systems Interconnect (OSI) application-layer protocol.
5. The method of claim 1 , wherein each block of content requested in the plurality of requests for blocks of the content is a fragment of a larger content file.
6. The method of claim 1 , wherein the content is streaming content.
7. The method of claim 6 , wherein the streaming content is from a live performance.
8. A non-transitory computer-readable medium comprising instructions that, when executed, are configured to cause a processor to perform a process for controlling delivery of content through a server, the process comprising:
establishing a connection with a device over one or more communication networks, wherein the connection comprises:
a bandwidth; and
a latency;
receiving, from the device via the connection, a plurality of requests for blocks of content; and
while at least some requests of the plurality of requests are still outstanding:
detecting a change of a service characteristic of the connection, wherein the service characteristic is based on a measurement of the latency and a measurement of the bandwidth;
determining a preferred number of outstanding requests based upon the service characteristic, wherein the outstanding requests are for blocks of varying sizes; and
halting transmission of one or more of the at least some requests that are still outstanding based on:
the preferred number of outstanding requests; and
a count of the at least some requests that are still outstanding.
9. The non-transitory computer-readable medium of claim 8 , wherein determining the preferred number of outstanding requests is evaluated using expression:
preferred
number
of
requests
=
⌈
t
latency
t
transmisssion
⌉
+
1
;
wherein t latency is the measurement of the latency and t transmission is a transmission time.
10. The non-transitory computer-readable medium of claim 9 , wherein the transmission time is evaluated using expression:
t
t
r
a
n
s
m
i
s
s
i
o
n
=
block
size
bandwidth
;
wherein block size is a size measurement of a block of content currently being transmitted and bandwidth is the measurement of the bandwidth.
11. The non-transitory computer-readable medium of claim 8 , wherein the plurality of requests for blocks of content are transmitted using an Open Systems Interconnect (OSI) application-layer protocol.
12. The non-transitory computer-readable medium of claim 8 , wherein each block of content requested in the plurality of requests for blocks of the content is a fragment of a larger content file.
13. The non-transitory computer-readable medium of claim 8 , wherein the content is streaming content.
14. The non-transitory computer-readable medium of claim 13 , wherein the streaming content is from a live performance.
15. A server directed to controlling delivery of content, comprising at least one processor which is configured to:
establish a connection with a device over one or more communication networks, wherein the connection comprises:
a bandwidth; and
a latency;
receive, from the device via the connection, a plurality of requests for blocks of content; and
while at least some requests of the plurality of requests are still outstanding:
detect a change of a service characteristic of the connection, wherein the service characteristic is based on a measurement of the latency and a measurement of the bandwidth;
determine a preferred number of outstanding requests based upon the service characteristic, wherein the outstanding requests are for blocks of varying sizes; and
halting transmission of one or more of the at least some requests that are still outstanding based on:
the preferred number of outstanding requests; and
a count of the at least some requests that are still outstanding.
16. The server of claim 15 , wherein determining the preferred number of outstanding requests is evaluated using expression:
preferred
number
of
requests
=
⌈
t
latency
t
transmisssion
⌉
+
1
;
wherein t latency is the measurement of the latency and t transmission is a transmission time.
17. The server of claim 16 , wherein the transmission time is evaluated using expression:
t
t
r
a
n
s
m
i
s
s
i
o
n
=
block
size
bandwidth
;
wherein block size is a size measurement of a block of content currently being transmitted and bandwidth is the measurement of the bandwidth.
18. The server of claim 15 , wherein the plurality of requests for blocks of content are transmitted using an Open Systems Interconnect (OSI) application-layer protocol.
19. The server of claim 15 , wherein each block of content requested in the plurality of requests for blocks of the content is a fragment of a larger content file.
20. The server of claim 15 , wherein the content is streaming content from a live performance.