Optimizing media player memory during rendering

• US 8,935,242 B2
• Filed: 03/08/2010
• Issued: 01/13/2015
• Est. Priority Date: 10/16/2002
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation), Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Microsoft Corporation, Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: LaChapelle, Kevin Leigh, Mercer, Ian Cameron, Takeguchi, Nobuyasu, Mizukami, Toshihiko, Yanagawa, Yoshifumi, Matsumi, Chiyoko, Miyamoto, Harutoshi, Torii, Yasuyuki, Matsuo, Keisuke
• Primary Examiner(s): Mofiz, Apu
• Assistant Examiner(s): DAYE, CHELCIE L
• Application Number:
  US12/719,148
• Publication Number:
  US 20110173163A1
• Time in Patent Office: 1,772 Days
• Field of Search: 707/727
• US Class Current: 707/727
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: Y10S 707/99932 Access augmentation or optimizing
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing
• CPC Class Codes: Y10S 707/99948 Application of database or data structure, e.g. distributed, multimedia, or image
• CPC Class Codes: Y10S 707/99953 Recoverability

Abstract

Optimizing operation of a media player during rendering of media files. The invention includes authoring software to create a data structure and to populate the created data structure with obtained metadata. The invention also includes rendering software to retrieve the metadata from the data structure and to identify media files to render. In one embodiment, the invention is operable as part of a compressed media format having a set of small files containing metadata, menus, and playlists in a compiled binary format designed for playback on feature-rich personal computer media players as well as low cost media players.

Claims

1. A method of optimizing operation of a media player on a consumer electronic device of a user, said media player accessing a computer-readable medium for rendering media files stored thereon, said computer-readable medium further storing memory optimizing data associated with the media files, said method comprising:

obtaining metadata including content related data for one or more selected media files and including information categorized as media player operations and media player startup, wherein the content related data includes a reference to a location of each of the selected media files on the computer-readable medium, and wherein the content related data describes content associated with each of the selected media files;

creating a data structure accessible by the media player prior to rendering the selected media files;

populating the created data structure with said obtained metadata including the content related data;

storing the populated data structure on the computer-readable medium with the selected media files;

accessing the information categorized for media player startup in the populated data structure by the media player of the user during media player startup;

discarding the information categorized for media player startup from the computer-readable medium after media player startup is completed;

reclaiming memory locations of the computer-readable medium previously occupied by the information categorized for media player startup for use by the media player during rendering and other media player operations;

navigating by the media player via the reference to the media files; and

rendering by the media player the navigated media files based on the information categorized for media player operations in the data structure.

2. The method of claim 1, further comprising:

associating numerical identifiers with the selected media files, said numerical identifiers being ordered sequentially and each corresponding to a respective one of the selected media files; and

storing said numerical identifiers in the data structure.

3. The method of claim 1, wherein obtaining comprises generating a playlist referencing at least one of the one or more selected media files or wherein the selected media files comprise a playlist or a menu image file or both.

4. The method of claim 1, further comprising:

organizing the selected media files by directory; and

sorting the organized media files, wherein said organizing and said sorting facilitate searching the selected media files.

5. The method of claim 1, wherein said obtaining comprises obtaining metadata directly from the selected media files or from a network server via a data communication network, or both.

6. The method of claim 1, wherein the selected media files are each associated with a directory name, and further comprising:

determining a numerical identifier for each directory name; and

populating the data structure with the determined numerical identifier.

7. The method of claim 1, further comprising:

compressing the selected media files; and

wherein the media files are compressed before storing on the computer-readable medium.

8. The method of claim 1, wherein said obtaining comprises identifying a logical sector number for each of the selected media files.

9. The method of claim 1, wherein said obtaining comprises obtaining menu information identifying the selected media files.

10. The method of claim 1, wherein said obtaining comprises obtaining a thumbnail image corresponding to one or more of the selected media files.

11. The method of claim 1, wherein said obtaining comprises identifying a language corresponding to menu information associated with the selected media files.

12. The method of claim 1, wherein the content-related data is selected from one or more of the following:

title, composer, performer, genre, studio, director, rating, artist, and description of content of the corresponding media file.

13. The method of claim 1, wherein one or more computer-readable media have computer-executable instructions for performing the method recited in claim 1.

14. In a media authoring tool, a computer executing computer-executable components stored on a first one or more computer-readable storage media for optimizing operation of a media player, said media player accessing a second computer-readable medium for rendering media files stored thereon, said media player utilizing a memory when rendering media files, said computer-readable medium further storing memory optimizing data associated with the media files, said components comprising:

a preparation module for obtaining metadata including content related data for one or more selected media files and including information categorized as media player operations and media player startup, wherein the content related data includes a reference to a location of each of the selected media files on the second computer-readable medium, and wherein the content related data describes content associated with each of the selected media files;

an initialization module for creating a data structure adapted accessible by the media player prior to rendering the selected media files;

an organization module for populating the created data structure from the initialization module with the obtained metadata including the content related data from the preparation module; and

a writer module for storing the populated data structure from the organization module on the second computer-readable medium with the selected media files, wherein the media player accesses the information categorized for media player startup in the stored populated data structure during media player startup and accesses the stored populated data structure to present the content related data to a user and to navigate and render the media files via the reference, said information categorized for media startup being discarded after media player startup, and wherein the media player renders the media files based on the information categorized for media player operations in the stored populated data structure, said media player optimizing the memory usage by reclaiming for use the memory of the second computer-readable medium previously occupied by the information categorized for media player startup;

said computer executing the components for performing their respective functions.

15. The computer-readable media of claim 14, wherein the organization module associates numerical identifiers with the selected media files, said numerical identifiers being ordered sequentially and each corresponding to a respective one of the selected media files, and wherein the organization module stores the numerical identifiers in the data structure.

16. The computer-readable media of claim 14, wherein the preparation module identifies a logical sector number for each of the selected media files.

17. A system comprising:

a media player;

one or more computer-readable storage media having computer-executable components stored thereon for optimizing and accelerating operation of the media player on a consumer electronic device of a user, said consumer electronic device having a memory, said media player accessing a computer-readable medium for rendering media files stored thereon, said computer-readable storage medium further storing memory optimizing data associated with the media files for optimizing usage of the memory of the consumer electronic device during rendering of the media files by the media player on the consumer electronic device, said components comprising;

a preparation module including instructions for obtaining metadata including content related data for one or more selected media files and including information categorized as media player operations and media player startup, wherein the content related data includes a reference to a location of each of the selected media files on the computer-readable medium, and wherein the content related data describes content associated with each of the selected media files;

an initialization module including instructions for creating a data structure accessible by the media player prior to rendering the selected media files;

an organizational module for populating the created data structure with said obtained metadata including the content related data;

a writer module for storing the populated data structure on the computer-readable medium with the selected media files, wherein the media player accesses the information categorized for media player startup in the stored populated data structure during media player startup and accesses the stored populated data structure to present the content related data to a user and to navigate and render the media files via the reference, said information categorized for media startup being discarded after media player startup, and wherein the media player renders the media files based on the information categorized for media player operations in the stored populated data structure, said media player optimizing the memory of the consumer electronic device by reclaiming for use the memory of the second computer-readable medium previously occupied by the information categorized for media player startup.

18. The system of claim 17, wherein the organization module associates numerical identifiers with the selected media files, said numerical identifiers being ordered sequentially and each corresponding to a respective one of the selected media files, and wherein the organization module stores the numerical identifiers in the data structure.

19. The system of claim 18, wherein the preparation module identifies a logical sector number for each of the selected media files.

20. The system of claim 17, wherein the preparation module identifies a logical sector number for each of the selected media files.