1. A system, comprising:
a first computer server hosting a plurality of web pages of a website;
a data storage server configured to store a plurality of modifications to the website;
a proxy server in communication with the data storage server, the proxy server being configured to:
receive, via a communications network, a request from a user for a first web page of the website,
retrieve a content of the first web page from the first computer server,
retrieve a modification for the first web page of the website from the data storage server,
apply the modification to the content of the first web page to create a modified content of the first web page, and
transmit the modified content of the first web page to the user; and
a domain name system (DNS) server storing a DNS record associating a domain name of the website with an Internet protocol (IP) address of the proxy server.
2. The system of claim 1, wherein the modification includes a change to at least one of a title hyper-text markup language (HTML) tag, and a headline HTML tag of the first web page.
3. The system of claim 1, wherein the modification to the first web page is encoded as Javascript.
4. The system of claim 1, wherein the proxy server is further configured to include in the modified content of the first web page a user interface for modifying the first web page.
5. The system of claim 4, wherein the proxy server is configured to, before including in the modified content of the first web page the user interface for modifying the first web page, determine whether the user has sufficient authority to modify the first web page of the website.
6. The system of claim 5, wherein the proxy server is configured to determine whether the user has sufficient authority by analyzing an authentication token received from the user.
7. The system of claim 5, wherein the proxy server is configured to determine whether the user has sufficient authority by analyzing an Internet protocol address from which the request originated.
8. The system of claim 1, wherein the proxy server is configure to cache a copy of the content of the first web page.
9. A proxy server, comprising:
a processor, the processor being configured to:
receive, via a communications network, a request from a user for a first web page of a website,
identify a first computer server hosting content for the website,
retrieve a content of the first web page from the first computer server,
retrieve a modification for the first web page of the website from a data storage server,
apply the modification to the content of the first web page to create a modified content of the first web page, and
transmit the modified content of the first web page to the user.
10. The proxy server of claim 9, wherein the modification includes a change to at least one of a title hyper-text markup language (HTML) tag, and a headline HTML tag of the first web page.
11. The proxy server of claim 9, wherein the modification to the first web page is encoded as Javascript.
12. The proxy server of claim 9, wherein the processor is further configured to include in the modified content of the first web page a user interface for modifying the first web page.
13. The proxy server of claim 12, wherein the processor is configured to, before including in the modified content of the first web page the user interface for modifying the first web page, determine whether the user has sufficient authority to modify the first web page of the website.
14. The proxy server of claim 13, wherein the processor is configured to determine whether the user has sufficient authority by analyzing an authentication token received from the user.
15. The proxy server of claim 13, wherein the proxy server is configured to determine whether the user has sufficient authority by analyzing an Internet protocol address from which the request originated.
16. The proxy server of claim 9, wherein the processor is configure to cache a copy of the content of the first web page.
17. A method, comprising:
receiving, via a communications network, a request from a user for a first web page of a website,
identifying a first computer server hosting content for the website,
retrieving a content of the first web page from the first computer server,
retrieving a modification for the first web page of the website from a data storage server,
applying the modification to the content of the first web page to create a modified content of the first web page, and
transmitting the modified content of the first web page to the user.
18. The method of claim 17, including:
determining whether the user has sufficient authority to modify the first web page of the website; and
when the user has sufficient authority to modify the first web page, including in the modified content of the first web page a user interface for modifying the first web page.
19. The method of claim 18, including analyzing an authentication token received from the user.
20. The method of claim 18, including analyzing an Internet protocol address from which the request originated.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An encoded-data converting apparatus for use with image data comprising:
a) encoded-data input means for inputting first encoded data encoded with a first encoding;
b) header extracting means for extracting first header information from the first encoded data;
c) header generating means for generating second header information for a second encoding from the first header information;
d) conversion setting means for setting-up variable-length-code conversion based on both a predetermined parameter for use in the second encoding and an encoding parameter used in the first encoding;
e) frame-data extracting means for extracting encoded data in one frame from the first encoded data;
f) variable-length-code converting means for converting a variable length code in the encoded data in accordance with the variable-length-code conversion set-up by said conversion setting means;
g) DC-component converting means for decoding DC components in the encoded data in the frame into quantized values and using the quantized values to perform predictive encoding based on the second encoding; and
h) encoded-data output means for shaping the second header information and outputs of said variable-length-code converting means, and said DC-component converting means into data, and outputting the data as data encoded by the second encoding.
2. An encoded-data converting apparatus according to claim 1, further comprising:
variable-length-code decoding means for decoding variable length codes in the encoded data in the frame which is extracted by said frame data extracting means;
storage means for storing a decoded result obtained by the decoding of the variable length codes;
motion compensating means for retrieving motion vectors by referring to the decoded result stored in said storage means and calculating prediction errors of the decoded result based on the retrieved motion vectors; and
prediction error encoding means for encoding the prediction errors,
wherein said encoded-data output means shapes the outputs into the data, including the output of said prediction error encoding means, and outputs the data as data encoded by the second encoding.
3. An encoded-data converting apparatus according to claim 2, wherein said motion compensating means determines which encoding is performed from between intra-encoding and inter-encoding.
4. An encoded-data converting apparatus according to claim 2, wherein said motion compensating means and said prediction error encoding means do not operate when intra-encoding is performed, but operate when inter-encoding is performed.
5. An encoded-data converting apparatus according to claim 4, wherein said prediction error encoding means performs AC predictive encoding when the intra-encoding is performed.
6. An encoded-data converting apparatus according to claim 2, wherein said DC component converting means operates when intra-encoding is performed.
7. An encoded-data converting apparatus according to claim 1, wherein the header information includes image-description information and encoding-parameter information.
8. An encoded-data converting apparatus according to claim 1, wherein said conversion setting means sets a variable-length-code conversion table.
9. An encoded-data converting apparatus according to claim 1, wherein, in the first encoding, only intra-encoding is used, and in the second encoding, adaptive use of intra-encoding and inter-encoding is performed.
10. An encoded-data converting apparatus according to claim 9, wherein the first encoding is JPEG encoding.
11. An encoded-data converting apparatus according to claim 9, wherein the second encoding is MPEG-4 encoding.
12. An encoded-data converting method comprising:
an input step for inputting first encoded data generated by using first encoding to encode image data;
a header extracting step for extracting header information included in the first encoded data;
a header generating step for generating header information based on second encoding from the header information included in the first encoded data;
a conversion setting step for setting-up variable-length-code conversion based on a predetermined parameter for use in the second encoding and an encoding parameter used in the first encoding;
a frame-data extracting step for extracting encoded data in one frame from the first encoded data;
a variable-length-code converting step for converting a variable length code in the encoded data in the frame in accordance with the variable-length-code conversion set-up by said conversion setting step;
a DC-component converting step for decoding DC components in the encoded data in the frame into quantized values and using the quantized values to perform predictive encoding based on the second encoding; and
an encoded-data output step for shaping the outputs of said header generating step, said variable-length-code converting step, and said DC-component converting step into data, and outputting the data as data encoded by the second encoding.
13. An encoded-data converting method according to claim 12, further comprising:
a variable-length-code decoding step for decoding variable length codes in the encoded data in the frame which is extracted by said frame data extracting step;
a motion compensating step for retrieving motion vectors by referring to a decoded result obtained in said variable-length-code decoding step and calculating prediction errors of the decoded result based on the retrieved motion vectors; and
a prediction error encoding step for encoding the prediction errors,
wherein, in said encoded-data output step, the output of said prediction error encoding step is shaped into data, and the data is output as data encoded by the second encoding.
14. An encoded-data converting method according to claim 13, wherein said motion compensating step determines which encoding is performed from between intra-encoding and inter-encoding.
15. An encoded-data converting method according to claim 14, wherein said motion compensating step and said prediction error encoding step are not executed when intra-encoding is performed, but are executed when inter-encoding is performed.
16. An encoded-data converting method according to claim 13, wherein, in said prediction error encoding step, AC predictive encoding is performed when the intra-encoding is performed.
17. An encoded-data converting method according to claim 13, wherein said DC component converting step is executed when intra-encoding is performed.
18. An encoded-data converting method according to claim 12, wherein the header information includes image-description information and encoding-parameter information.
19. An encoded-data converting method according to claim 12, wherein, in said conversion setting step, a variable-length-code conversion table is set.
20. A recording medium containing a program for causing a computer to execute each of steps constituting an encoded-data converting method according to claim 12.