Method and apparatus for transmitting video content compressed by codec

Patent metadata

Field	Value
Publication number	US-9866921-B2
Application number	US-201113030590-A
Country	US
Kind code	B2
Filing date	Feb 18, 2011
Priority date	Feb 19, 2010
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A method and apparatus of transmitting video content compressed by a codec to a second device is provided. The method includes: transmitting a codec selection request frame to the second device, the codec selection request frame includes an identifier of at least one codec to be used to compress the video content and requests approval of the use of the at least one codec; receiving a codec selection response frame from the second device, the codec selection response frame includes approval information indicating whether the use of the at least one codec is approved; and transmitting video content compressed by the at least one codec to the second device based on the codec selection response frame.

First claim

What is claimed is:

1. A method of transmitting media content by a first device, the method comprising:
receiving, from a second device, a capability response frame comprising a first identifier that identifies at least one codec supported by the second device;
transmitting, from the first device, a codec selection request frame to the second device, the codec selection request frame comprising a second identifier that identifies a plurality of codecs to be used to compress at least one media content;
receiving, at the first device, a codec selection response frame from the second device, the codec selection response frame comprising approval information indicating whether use of at least one codec of the plurality of codecs is approved; and
transmitting, from the first device, the at least one media content compressed by the plurality of codecs to the second device based on the codec selection response frame,
wherein the codec selection request frame further comprises at least one content identifier indicating media content to be transmitted by the first device and content number information indicating an amount of media content to be transmitted by the first device.

2. The method of claim 1 , further comprising:
transmitting a capability request frame to the second device, wherein the capability response frame is received in response to the capability request frame.

3. The method of claim 2 , wherein the first identifier comprises at least one of a third identifier of at least one codec vendor providing the at least one codec and a fourth identifier of at least one codec having a format defined by the at least one codec vendor.

4. The method of claim 1 , wherein the capability response frame further comprises codec number information indicating a number of codecs supported by the second device.

5. The method of claim 2 , wherein the capability request frame requests information about a capability of the second device.

6. The method of claim 1 , wherein the codec selection request frame further comprises at least one of a frame identifier indicating that the codec selection request frame is a frame for requesting selection of a codec to be applied to the media content to be transmitted by the first device.

7. The method of claim 1 , wherein the codec selection response frame further comprises at least one of a frame identifier indicating that the codec selection response frame is a response frame with respect to the codec selection request frame.

8. The method of claim 1 , wherein the second identifier identifies a first codec and a second codec to be used to compress the media content.

9. The method of claim 8 , wherein the approval information comprises a first approval information field that indicates approval or rejection of the first codec, and a second approval information field that indicates approval or rejection of the second codec.

10. The method of claim 8 , wherein the approval information comprises an approval information field that indicates approval or rejection of the first codec and the second codec.

11. An apparatus that transmits media content, the apparatus comprising:
a receiver configured to receive, from an second device, a capability response frame comprising a first identifier that identifies at least one codec supported by the second device; and
a transmitter configured to transmit a codec selection request frame to the second device, the codec selection request frame comprising a second identifier that identifies a plurality of codecs to be used to compress at least one media content,
wherein the receiver is further configured to receive a codec selection response frame from the second device, the codec selection response frame comprising approval information indicating whether use of at least one codec of the plurality of codecs is approved,
wherein the transmitter is further configured to transmit the at least one media content compressed by the plurality of codecs to the second device based on the codec selection response frame, and
wherein the codec selection request frame further comprises at least one content identifier indicating the at least one media content to be transmitted by the apparatus and content number information indicating an amount of the at least one media content to be transmitted by the apparatus.

12. The apparatus of claim 11 , wherein the transmitter is further configured to transmit a capability request frame to the second device, and wherein the capability response frame is received in response to the capability request frame.

13. The apparatus of claim 12 , wherein the first identifier comprises at least one of a third identifier of at least one codec vendor providing the at least one codec and a fourth identifier of at least one codec having a format defined by the at least one codec vendor.

14. The apparatus of claim 11 , wherein the capability response frame further comprises information indicating a number of codecs supported by the second device.

15. The apparatus of claim 12 , wherein the capability request frame requests information about a capability of the second device.

16. The apparatus of claim 11 , wherein the codec selection request frame further comprises at least one of a frame identifier indicating that the codec selection request frame is a frame for requesting selection of a codec to be applied to the at least one media content to be transmitted by the apparatus.

17. The apparatus of claim 11 , wherein the codec selection response frame further comprises at least one of a frame identifier indicating that the codec selection response frame is a response frame with respect to the codec selection request frame.

18. The apparatus of claim 11 , wherein the second identifier identifies a first codec and a second codec to be used to compress the at least one media content.

19. The apparatus of claim 18 , wherein the approval information comprises a first approval information field that indicates approval or rejection of the first codec, and a second approval information field that indicates approval or rejection of the second codec.

20. The apparatus of claim 18 , wherein the approval information comprises an approval information field that indicates approval or rejection of the first codec and the second codec.

21. A non-transitory computer-readable recording medium having embodied thereon a computer program, which when executed by a computer, performs a method comprising:
receiving, by a first device, a capability response frame from a second device, the capability response frame comprising a first identifier that identifies at least one codec supported by the second device;
transmitting, from the first device, a codec selection request frame to the second device, the codec selection request frame comprising a second identifier that identifies a plurality of codecs to be used to compress at least one media content;
receiving, at the first device, a codec selection response frame from the second device, the codec selection response frame comprising approval information indicating whether use of the at least one codec of the plurality of codecs is approved; and
transmitting, from the first device, the at least one media content compressed by the plurality of codecs to the second device based on the codec selection response frame,
wherein the codec selection request frame further comprises at least one content identifier indicating media content to be transmitted by the first device and content number information indicating

Assignees

• Jun Hae-Young
• Park Sung-Bum
• Park Dong-Seek
• Samsung Electronics Co Ltd

Inventors

• Jun Hae-Young
• Park Sung-Bum
• Park Dong-Seek

Classifications

• H04N21/6379

  directed to encoder {, e.g. for requesting a lower encoding rate} · CPC title

• H04L65/4084

  Electricity · mapped topic

• H04L65/4092

  Electricity · mapped topic

• H04N21/6582 Primary

  Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number (arrangements where receivers interact with the broadcast H04H20/38) · CPC title

• H04N21/2393

  involving handling client requests (scheduling or organising the servicing of application requests H04L67/60) · CPC title