Nonlinear video editor

• US 6,542,692 B1
• Filed: 03/19/1998
• Issued: 04/01/2003
• Est. Priority Date: 03/19/1998
• Status: Expired due to Term

• Current Assignee: Tumbleweed Holdings LLC (Equitable IP Corporation)
• Original Assignee: Media 100, Inc.
• Inventors: Houskeeper, Marshall Richard
• Primary Examiner(s): TRAN, THAI Q
• Application Number:
  US09/044,461
• Time in Patent Office: 1,839 Days
• Field of Search: H04/N.576, H04/N.592, H04/N.591, H04/N.979, 386/4, 386/52, 386/53, 386/55, 386/64, 386/54, 345/328, 360/13, 360/15, 369/83, 369/84, 369/85
• US Class Current: 386/280
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 27/024 on tapes G11B27/028, G11B27/029 take precedence
• CPC Class Codes: G11B 27/032 on tapes G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• 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

Abstract

A method and a system are provided for playing back sequences of segments of video media data stored on a storage media. A segment of the video media data is retrieved at a predetermined period prior to playback and stored in a temporary storage. Control information correlated with the segment of the video media data is subsequently supplied for processing the segment of the video media data. The control information specifies the processing of the segment of the video media data during playback. The segment of the video media data is then processed according to the control information to generate processed video for playback.

Claims

1. A method of playing back sequences of segments of video media data stored on a storage media, each said segment comprising a series of frames of said video media data providing a two-dimensional image that changes in real time during said playing back, said method comprising

storing the segments of the video media data,

retrieving a segment of the video media data at a predetermined period prior to playback and storing the segment in a temporary storage, said segment comprising a series of frames of said video media data providing a two-dimensional image that changes in real time,

subsequently supplying, for processing the segment of the video media data stored in temporary storage, control information correlated with the segment of the video media data stored in temporary storage, the control information specifying the processing of the segment of the video media data stored in temporary storage during playback, and

processing the segment of the video media data stored in temporary storage according to the control information to generate processed video for playback.

2. The method of claim 1 further comprising generating or modifying the control information for the segment of the video media data during or after retrieving the segment of the video media data.

3. The method of claim 2 wherein generating or modifying the control information comprises displaying a graphical user interface for a user to generate or modify the control information for the segment of the video media data during or after retrieving the segment of the video media data.

4. The method of claim 1 further comprising generating or modifying the control information for the segment of the video media data prior to retrieving the segment of the video media data.

5. The method of claim 1 wherein the segment is a frame of video.

6. The method of claim 1 wherein the segment is a field of a frame of video.

7. The method of claim 1 wherein processing the segment of the video media data includes performing a video effects operation on the video media data.

8. The method of claim 7 wherein the video effects operation is selected from among a group of video effects operations comprising dissolves, wipes, and digital video effects, color effects, single or multiple overlays, and filters.

9. The method of claim 7 wherein the video effects operation is characterized by an attribute selected from among a group of attributes comprising border width, range, reverse effect, crop, softness, transparency, and border color.

10. The method of claim 1 wherein the storage media is a digital database.

11. The method of claim 10 wherein retrieving the segment of the video media data includes accessing the digital database across a network.

12. The method of claim 1 wherein the storage media is one of a magnetic disk and a CD-ROM drive.

13. The method of claim 1 wherein the segment of the video media data includes audio data.

14. The method of claim 13 wherein the audio data is selected from among a group of audio data types comprising a sample, a selected number of samples, and samples associated with a video frame.

15. The method of claim 13 wherein processing the segment of the video media data includes performing an operation on the audio.

16. The method of claim 15 wherein the operation includes applying an audio filter.

17. The method of claim 16 wherein the audio filter is selected from among a group of audio filters comprising equalization filter, audio compression filter, and sound effects filter.

18. The method of claim 15 wherein the operation includes changing a playback volume of the audio.

19. The method of claim 15 wherein the audio includes two output channels and the operation includes changing the pan balance between the output channels.

20. The method of claim 15 wherein further comprising monitoring a characteristic of the processed video media data and displaying the results of said monitoring.

21. The method of claim 1 wherein the temporary storage is a memory of a computer.

22. The method of claim 1 wherein the temporary storage is a memory of a peripheral board connected to a host computer.

23. The method of claim 1 further comprising playing back the processed video media data.

24. The method of claim 23 further comprising displaying a subsampled image of the processed video when playing back the processed video media data.

25. The method of claim 1 wherein a host computer retrieves the segment of the video media data and a peripheral board connected to the computer processes the segment of the video media data, wherein retrieving the segment of the video media data further includes sending at the predetermined time a request, from the peripheral board to the host computer, for the host computer to retrieve the segment of the video media data.

26. The method of claim 25 further comprising:

maintaining a list of segments of the video data to be played back,

determining which one of the segments of the video media data is to be played back at the predetermined time, and

sending a request, from the peripheral board to the host computer, for the host computer to retrieve said one of the segments of the video media data.

27. The method of claim 1 wherein a host computer retrieves the segment of the video media data and a peripheral board connected to the computer processes the segment of the video media data, further comprising:

subsequent to retrieving the segment of the video media, scheduling the segment of the video media, at a peripheral board, for playback; and

sending a request, from the peripheral board to the host computer, for the control information.

28. The method of claim 27 further comprising processing the segment of the video media data at the host computer prior to processing the segment of the video media data at the peripheral board.

29. The method of claim 27 wherein scheduling the segment of the video media data includes placing a pointer identifying the segment of the video media data on a segment playback queue.

30. A system for playing back sequences of segments of the video media data, each said segment comprising a series of frames of said video media data providing a two-dimensional image that changes in real time during said playing back, said method comprising

a storage media storing the segments of the video media data,

a host computer comprising a temporary storage, and

a video media processor,

the host computer retrieving a segment of the video media data at a predetermined period prior to playback and storing the segment in the temporary storage, said segment comprising a series of frames of said video media data providing a two-dimensional image that changes in real time, and subsequently supplying to the video media processor, for processing the segment of the video media data stored in said temporary storage, control information correlated with the segment of the video media data stored in said temporary storage, the control information specifying the processing of the segment of the video media data stored in said temporary storage during playback, and

the video media processor processing the segment of video data according to the control information to generate processed video for playback.

31. The system of claim 30 wherein the host computer generates or modifies the control information for the segment of the video media data during or after retrieving the segment of the video media data.

32. The system of claim 31 further comprising a display for displaying a graphical user interface for a user to cause the host computer to generate or modify the control information for the segment of the video media data during or after retrieving the segment of the video media data.

33. The system of claim 30 wherein the host computer generates or modifies the control information for the segment of the video media data prior to retrieving the segment of the video media data.

34. The system of claim 30 wherein the segment is a frame of video.

35. The system of claim 30 wherein the segment is a field of a frame of video.

36. The system of claim 30 wherein the video media processor includes a video effects processor for performing a video effects operation on the video media data.

37. The system of claim 36 wherein the video effects operation is selected from among a group of video effects operations comprising dissolves, wipes, and digital video effects, color effects, single or multiple overlays, and filters.

38. The system of claim 37 wherein the video effects operation is characterized by an attribute selected from among a group of attributes comprising border width, range, reverse effect, crop, softness, transparency, and border color.

39. The system of claim 30 wherein the storage media is a digital database.

40. The method of claim 39 wherein retrieving the segment of the video media data includes accessing the digital database across a network.

41. The system of claim 30 wherein the storage media is one of a magnetic disk and a CD-ROM drive.

42. The system of claim 30 wherein the segment of the video media data includes audio data.

43. The system of claim 42 wherein the audio data is selected from among a group of audio data types comprising a sample, a selected number of samples, and samples associated with a video frame.

44. The system of claim 43 wherein the video media processor includes an audio processor for performing an operation on the audio.

45. The system of claim 44 wherein the operation includes the operation includes applying an audio filter.

46. The system of claim 44 wherein the audio filter is selected from among a group of audio filters comprising equalization filter, audio compression filter, and sound effects filter.

47. The system of claim 44 wherein the operation includes changing a playback volume of the audio.

48. The system of claim 44 wherein the audio includes two output channels and the operation includes changing the pan balance between the output channels.

49. The system of claim 44 further comprising a display, wherein the peripheral board monitors a characteristic of the processed video media data and the host computer displays the results of said monitoring on the display.

50. The system of claim 30 wherein the temporary storage is the memory of the host computer.

51. The system of claim 30 wherein the temporary storage is the memory of the peripheral board.

52. The system of claim 30 further comprising circuit for playing back the processed video media data.

53. The system of claim 52 further comprising a display for displaying a subsampled image of the processed video when playing back the processed video media data.

54. The system of claim 30 further comprising a peripheral board connected to the host computer and including the video media processor, wherein the peripheral board sends, at the predetermined time a request, to the host computer and, in response to the request, the host computer retrieves the segment of the video media data.

55. The system of claim 54 wherein the peripheral board maintains a list of segments of the video data to be played back, determines from the list which one of the segments of the video media data is to be played back at the predetermined time, and sends a request to the host computer for the host computer to retrieve said one of the segments of the video media data.

56. The system of claim 30 further comprising a peripheral board connected to the host computer and including the video media processor, wherein the peripheral board, subsequent to the host computer retrieving the segment of the video media, schedules the segment of the video media for playback and sends a request to the host computer for the control information.

57. The system of claim 56 wherein the host computer processes the segment of the video media data prior to the video media processor processing the segment of the video media data.

58. The system of claim 56 the peripheral board schedules the segment of the video media data by placing a pointer identifying the segment of the video media data on a segment playback queue.