Methods and systems for facilitating multimedia data encoding using storage buffers

Patent metadata

Field	Value
Publication number	US-11876989-B2
Application number	US-202117242433-A
Country	US
Kind code	B2
Filing date	Apr 28, 2021
Priority date	Jan 13, 2011
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

Several methods and systems for facilitating multimedia data encoding are disclosed. In an embodiment, a plurality of picture buffers associated with multimedia data are received in an order of capture associated with the plurality of picture buffers. Buffer information is configured for each picture buffer from among the plurality of picture buffers comprising at least one of a metadata associated with the corresponding picture buffer and one or more encoding parameters for the corresponding picture buffer. A provision of picture buffers in an order of encoding is facilitated based on the configured buffer information.

First claim

What is claimed is:

1. A method comprising:
storing a first buffer information for a first picture buffer in a first storage buffer, wherein the first storage buffer is associated with a first temporal level of the first picture buffer, and wherein the first picture buffer corresponds to a first bi-directional coded frame (B frame);
storing a second buffer information for a second picture buffer in a second storage buffer, wherein the second storage buffer is associated with a second temporal level of the second picture buffer, and wherein the second picture buffer corresponds to a first predictive coded frame (P frame);
receiving an instantaneous decoding refresh (IDR) frame insertion request; and
converting the first buffer information from buffer information corresponding to the first B frame into buffer information corresponding to a second P frame in response to receiving the IDR frame insertion request.

2. The method of claim 1 , wherein the first buffer information further comprises an encoding parameter for the first picture buffer.

3. The method of claim 1 , wherein converting the first buffer information comprises:
extracting the first buffer information;
modifying the extracted first buffer information from buffer information corresponding to the first B frame into the buffer information corresponding to the second P frame; and
transferring the modified buffer information corresponding to the second P frame into the second storage buffer.

4. A system comprising:
a memory module configured to:
store a first buffer information for a first picture buffer in a first storage buffer, wherein the first storage buffer is associated with a first temporal level of the first picture buffer, and wherein the first picture buffer corresponds to a first bi-directional coded frame (B frame); and
store a second buffer information for a second picture buffer in a second storage buffer, wherein the second storage buffer is associated with a second temporal level of the second picture buffer, and wherein the second picture buffer corresponds to a first predictive coded frame (P frame); and

a buffer information module configured to:
receive an instantaneous decoding refresh (IDR) frame insertion request; and
convert the first buffer information from buffer information corresponding to the first B frame into buffer information corresponding to a second P frame in response to receiving the IDR frame insertion request.

5. The system of claim 4 , wherein the first buffer information further comprises an encoding parameter for the first picture buffer.

6. The system of claim 4 , wherein converting the first buffer information comprises:
extracting the first buffer information;
modifying the extracted first buffer information from buffer information corresponding to the first B frame into the buffer information corresponding to the second P frame; and
transferring the modified buffer information corresponding to the second P frame into the second storage buffer.

7. A non-transitory computer-readable medium storing a set of instructions that when executed cause a computer to perform a method, the method comprising:
storing a first buffer information for a first picture buffer in a first storage buffer, wherein the first storage buffer is associated with a first temporal level of the first picture buffer, and wherein the first picture buffer corresponds to a first bi-directional coded frame (B frame);
storing a second buffer information for a second picture buffer in a second storage buffer, wherein the second storage buffer is associated with a second temporal level of the second picture buffer, and wherein the second picture buffer corresponds to a first predictive coded frame (P frame);
receiving an instantaneous decoding refresh (IDR) frame insertion request; and
converting the first buffer information from buffer information corresponding to the first B frame into buffer information corresponding to a second P frame in response to receiving the IDR frame insertion request.

8. The non-transitory computer-readable medium of claim 7 , wherein the first buffer information further comprises an encoding parameter for the first picture buffer.

9. The method of claim 1 , further comprising storing the first buffer information in the second storage buffer in response to receiving the IDR frame insertion request.

10. The method of claim 1 , further comprising storing an IDR picture buffer associated with the IDR request in the second storage buffer.

11. The method of claim 10 , wherein a capture index of the first picture buffer precedes a capture index of the IDR picture buffer.

12. The method of claim 10 , wherein a capture index of the first picture buffer immediately precedes a capture index of the IDR picture buffer.

13. The method of claim 1 , further comprising:
storing a third buffer information for a third picture buffer in the first storage buffer, wherein the third picture buffer corresponds to a second B frame; and
converting the third buffer information from buffer information corresponding to the second B frame into buffer information corresponding to third P frame in response to receiving the IDR frame insertion.

14. The system of claim 4 , wherein the memory module is configured to store the first buffer information in the second storage buffer in response to receiving the IDR frame insertion request.

15. The system of claim 4 , wherein the memory module is configured to store an IDR picture buffer associated with the IDR request in the second storage buffer.

16. The system of claim 15 , wherein a capture index of the first picture buffer immediately precedes a capture index of the IDR picture buffer.

17. The system of claim 4 ,
wherein the memory module is configured to store a third buffer information for a third picture buffer in the first storage buffer,
wherein the third picture buffer corresponds to a second B frame, and
wherein the buffer information module is configured to convert the third buffer information from buffer information corresponding to the second B frame into buffer information corresponding to third P frame in response to receiving the IDR frame insertion.

18. The non-transitory computer-readable medium of claim 7 , wherein the method further comprises storing the first buffer information in the second storage buffer in response to receiving the IDR frame insertion request.

19. The non-transitory computer-readable medium of claim 7 ,
wherein the method further comprises storing an IDR picture buffer associated with the IDR request in the second storage buffer, and
wherein a capture index of the first picture buffer immediately precedes a capture index of the IDR picture buffer.

20. The non-transitory computer-readable medium of claim 7 , wherein the method further comprises:
storing a third buffer information for a third picture buffer in the first storage buffer, wherein the third picture buffer corresponds to a second B frame; and
converting the third buffer information from buffer information corresponding to the second B frame into buffer information corresponding to third P frame in response to receiving the IDR frame insertion.

Assignees

• Texas Instruments Inc

Inventors

• Kiran Uday Pudipeddi
• Poddar Deepak Kumar
• Swami Pramod Kumar
• Kudana Arun Shankar

Classifications

• H04N19/423 Primary

  characterised by memory arrangements (H04N19/433 takes precedence) · CPC title

• H04N19/177

  the unit being a group of pictures [GOP] · CPC title

• H04N19/44

  Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder · CPC title

• H04N19/577

  Motion compensation with bidirectional frame interpolation, i.e. using B-pictures · CPC title