JP4172489B2 - Optical disk playback device - Google Patents

Description

  The present invention relates to an optical disc playback apparatus that plays back information recorded on an optical disc, and more particularly, to playback processing for an optical disc on which a plurality of audio files and a plurality of still image files are recorded.

  Conventionally, DVD (Digital Versatile Disc) is an optical disc that can record moving images with high image quality and high density, as well as information such as multi-angle video, sub-video, multi-lingual audio, and multi-channel audio (multi-channel audio). ) Video standard DVDs are widespread. In the DVD of the DVD video standard, information is recorded with priority on video rather than audio. On the other hand, DVD of the DVD audio standard in which information is recorded with priority over sound over video is also widespread.

  In the DVD of the DVD audio standard, for example, when one or a plurality of music pieces are continuously played, one still image is continuously displayed in parallel with the sound reproduction (still image display). Or display (slide show) while switching a plurality of still images in order.

  By the way, in the optical disk reproducing apparatus, when reproducing information on a DVD of the DVD audio standard in which a plurality of audio files such as MP3 format and still image files such as JPEG format are recorded, this DVD is first inserted and started. Then, when the playback key on the remote control is pressed, the audio file and still image file are played in the order of the playback list.

  For example, as shown in FIG. 2, the reproduction list A has a reproduction order of 1.2.3.4.5.6.7.7.8.10. mp3, 002. mp3, 001. jpg, 003. mp3, 002. jpg, 003. jpg, 004. jpg, 005. jpg, 004. mp3, 005. Assume that a list of file names mp3 is arranged. Here, mp3 indicates an MP3 format music file, and jpg indicates a JPEG format still image file.

In the optical disk reproducing apparatus, when the reproduction list A is acquired from the DVD and reproduction is started, 001. mp3, 002. mp3, 001. jpg, 003. mp3, 002. jpg, 003. jpg, 004. jpg, 005. jpg, 004. mp3, 005. Replayed in the order of mp3. That is, 001. mp3 music, 002. mp3 music, 001. jpg still image, 003. mp3 music, 002. jpg still image, 003. jpg still image, 004. still image by jpg, 005. jpg still image, 004. mp3 music, 005. The music is played in the order of mp3 music.
JP 2002-288492 A

  By the way, there is a case where music and still images are desired to be shuffled by randomly rearranging the list order of the playlist without playing music and still images in the order of the playlist. In the case of random playback, the list is randomly rearranged by the random function, and the same music may continue or the same still image may continue.In shuffle playback, the list is randomly arranged by the random function. Although it can be changed, it is shuffled and reproduced so that the case where the same music continues or the case where the same still image continues does not occur.

  Therefore, in the conventional optical disk playback device, when the audio file (music file) and still image file in the playlist are shuffled, the playlist is shuffled with one random function, and automatically according to the selected list. An audio file and a still image file are played back. However, when the audio file is played back and sound (music) is output from a speaker or the like, the still image is not displayed on the display device, and the still image file is displayed. Is played and a still image is displayed on the display device, no sound (music) is output.

  Therefore, in the conventional optical disk playback device, a user who is watching with shuffle playback cannot view a still image while listening to the sound (music), and can also listen to the sound (music) while watching the still image. Therefore, there is a problem that the user's viewing enjoyment is limited, and the user's viewing enjoyment is not sufficient.

  By the way, in the prior art of Patent Document 1, two types of slide shows (sequential slide show, random / shuffle slide show) and three types of browseable still image display (sequential / browsable still image display with automatic screen switching, screen switching). Automatic random / shuffle / browsable still image display and sequential / browsable still image display that allows the user to switch screens). This allows sequential slide show, random / shuffle slide show, sequential / browsable still image display with automatic screen switching, random / shuffle / browsable still image display with automatic screen switching, while playing audio (audio). The still image is switched in either a sequential / browsable still image display in which the user switches the screen.

  However, in this shuffle playback method, only still images are shuffled and not shuffled for audio (audio). For example, images shot with a digital camera are shuffled. However, since the audio cannot be enjoyed by shuffled reproduction, it cannot be said that the viewing enjoyment for the user is sufficient.

  The present invention has been made in order to solve the above-described problems. An optical disk on which an audio file and a still image file are recorded is shuffled between the audio file and the still image file regardless of the recording order of the files. An object of the present invention is to provide an optical disk reproducing apparatus capable of simultaneous reproduction.

In order to achieve the above object, according to the first aspect of the present invention, there is provided an optical disc reproducing apparatus for reproducing information recorded on an optical disc, which is described in a reproduction list from an optical disc on which a plurality of audio files and a plurality of still image files are recorded. A list distribution unit that acquires all the files that are recorded, and distributes the reproduction list into an audio list indicating a plurality of audio files and a still image list indicating a plurality of still image files according to file extensions; and A list creation means for creating a playlist for audio by shuffling with a random function and creating a playlist for still image by shuffling with the random function for the still image list, and an audio file shown in the playlist for audio Is read out from the optical disk and output as audio from the audio output means. At the same time, the audio reproduction control of advancing the reproduction target list of the audio reproduction list by one, reading out the audio file of the one advanced list from the optical disc and outputting the audio from the audio output means, and simultaneously with the audio output The still image file shown in the still image reproduction list is read from the optical disk and displayed on the display means. When reproduction of one still image file is completed, the reproduction target list of the still image reproduction list is advanced by one. An optical disc comprising a system controller having playback control means for simultaneously performing still image playback control for reading out a still image file of the advanced list from the optical disc and displaying the file on a display means, thereby performing simultaneous shuffle playback. A playback device is provided.

In this configuration, when all the files described in the playlist are acquired from the optical disc in which a plurality of audio files and a plurality of still image files are recorded, the list distribution unit converts the acquired playlist into a plurality of files . An audio list indicating an audio file and a still image list indicating a plurality of still image files are allocated according to the file extension. When simultaneous shuffle playback is instructed, the list creation means shuffles the audio list with a random function to create an audio play list, and also shuffles the still image list with a random function for still images. Create a playlist.

  The playback control means performs simultaneous shuffle playback by simultaneously performing audio playback control for playing audio files according to the playback order of the audio playlist and still image playback control for playing still image files according to the playback order of the still picture playback list. To do. That is, for example, the playback control means reads from the optical disk the first audio file to be played back in the audio playback list, and outputs the audio from the audio output means. Simultaneously with this audio output, the playback control means reads the still picture file to be played first in the still picture playback list from the optical disk and displays it on the display means.

  When the reproduction control unit determines that the reproduction of one audio file has been completed, the reproduction control unit advances the reproduction target list of the audio reproduction list by one, and reproduces the audio file which has advanced the reproduction target list by one. Similarly, all the audio files in the audio reproduction list are reproduced. At the same time as the playback processing related to audio, if the playback control unit determines that playback of one still image file has ended, the playback target list of the still image playback list is advanced by one, and the playback target list is set to 1. Play the advanced still image file. In the same manner, still image files of the entire list of still image reproduction lists are reproduced.

  According to this configuration, the optical file on which the audio file and the still image file are recorded can be shuffled and reproduced simultaneously regardless of the file recording order. The shuffle playback of the shot video and the like can be enjoyed by shuffle playback, and the user can enjoy viewing more and the use value of the apparatus is increased.

  As described above, according to the present invention, a reproduction list acquired from an optical disc on which a plurality of audio files and a plurality of still image files are recorded, an audio list indicating a plurality of audio files, and a still image indicating a plurality of still image files. A list distribution means for distributing to a list, and a playlist for audio that is actually used by shuffling the audio list with a random function, and is also actually used by shuffling the still image list with a random function A list creating means for creating a still image reproduction list, and an audio file shown in the audio reproduction list is read out from the optical disk and output from the audio output means, and when reproduction of one audio file is completed, Advance the list to be played by one, and read the audio file of this advanced list from the optical disc. Audio reproduction control for outputting audio from the audio output means, and at the same time as the audio output, the still image file shown in the still image reproduction list is read from the optical disk and displayed on the display means, and the reproduction of one still image file is completed. Simultaneously perform shuffle playback by simultaneously performing still image playback control in which the list of playback targets of the still image playback list is advanced by one, and still image files in the advanced list are read from the optical disk and displayed on the display means. Since the system controller having the playback control means is provided, the audio file and the still image file can be shuffled and played back simultaneously on the optical disc on which the audio file and the still image file are recorded regardless of the recording order of the file. As a result, for example, images shot with a digital camera can be shut down. While Le playback, voice also will be able to enjoy and shuffle play, the more fun way of viewing for the user, use value increases as the apparatus.

  Further, according to the present invention, a reproduction list acquired from an optical disc on which a plurality of audio files and a plurality of still image files are recorded, an audio list indicating the plurality of audio files, a still image list indicating the plurality of still image files, The audio playlist is shuffled with a random function to create an audio playlist that is actually used, and the still image playlist is shuffled with a random function to be actually used. A system controller for simultaneously performing shuffle playback by simultaneously performing control for generating and playing back an audio file according to the playback order of the audio playlist and playback of a still image file according to the playback order of the still picture playlist So that an optical disc on which audio files and still image files are recorded can be Regardless of the recording order, audio files and still image files can be played simultaneously in a shuffled manner, so that, for example, images shot with a digital camera can be shuffled and played back with shuffled playback. As a result, the viewing enjoyment for the user is increased, and the use value of the apparatus is increased.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of an optical disc reproducing apparatus according to an embodiment of the present invention.

  The optical disk reproducing apparatus includes a spindle motor 5 that rotates the optical disk 1, an optical pickup 2 that emits a laser beam for reproducing information recorded on the optical disk 1 and receives reflected light from the optical disk 1, and the light. A sled 3 for moving the pickup 2 in the radial direction of the optical disc 1, a system controller 22 for controlling the entire apparatus, the spindle motor 5 and the sled 3 are driven in accordance with instructions from the system controller 22, and the optical pickup 2 A servo control unit 4 is provided for performing control to move the focal position of the laser beam in the vertical direction and the horizontal direction with respect to the recording surface of the optical disc 1 by moving a built-in objective lens (not shown).

  The optical disk reproducing apparatus also includes an RF amplifier 6 that amplifies an RF signal that is a read signal from the optical pickup 2 during reproduction of the optical disk 1, and an optical disk after the RF signal output from the RF amplifier 6 is converted into digital data. A digital signal processing unit 8 that stores data generated by performing signal demodulation processing and error correction processing according to the data format 1 in the RAM 7, and data output from the digital signal processing unit 8 in response to an instruction from the system controller 22 A stream separation unit 9 for separating audio data based on the DVD audio standard, sub-picture data, and video data (still image data) from the stream is provided.

  In addition, the optical disc reproducing apparatus receives audio data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores the data for performing the decoding process in the audio decoder 11. The RAM 10 to store, the sub-picture decoder 13 that inputs the sub-picture data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores the data to perform the decoding process in the sub-picture decoder 13 The RAM 12 to be stored, the video decoder 15 that receives the video data output from the stream separation unit 9 and performs a predetermined decoding process, and temporarily stores the data to perform the decoding process in the video decoder 15 RAM 14 for storing moving image data and still image data Eteiru.

  In addition, this optical disk reproducing apparatus combines the data output from the video decoder 15 and the data output from the sub-picture decoder 13 in accordance with an instruction from the system controller 22, and the video processor 17 outputs the data. A video encoder 18 for converting the synthesized data into a video signal for display and displaying a moving image or a still image on the display device 20, and an audio circuit (not shown) by converting the data output from the audio decoder 11 into an analog audio signal. For example, a D / A converter 16 for supplying to the speaker 19 is provided.

  In addition, the optical disk reproducing apparatus includes a reproduction key for giving a reproduction instruction to the system controller 22, a stop key for instructing reproduction stop, or a shuffle reproduction key for giving an instruction of simultaneous shuffle reproduction. A remote controller 21 having various operation keys is provided. In addition, this optical disk recording / reproducing apparatus performs a calculation process according to the flash ROM 23 storing a program and data for controlling each component of the apparatus and controlling the entire apparatus, and the program and data of the flash ROM 23. A CPU 24 that controls the system controller 22 and a RAM 25 that temporarily stores data necessary for arithmetic processing of the CPU 24 are provided.

  The system controller 22 sorts the reproduction list acquired from the optical disc on which a plurality of audio files and a plurality of still image files are recorded into an audio list indicating a plurality of audio files and a still image list indicating a plurality of still image files. A list distribution unit 221 and a sound reproduction list that is actually used by shuffling the sound list with a random function, and for still images that are actually used by shuffling the still image list with a random function A list creating means 222 for creating a reproduction list, and an audio file shown in the audio reproduction list are read from the optical disk and output from the audio output means. When reproduction of one audio file is completed, the reproduction target of the audio reproduction list is Advance the list by one, and the audio file of the list advanced by one Audio playback control of reading out from the speaker 19 and outputting the audio from the speaker 19 and the like, and simultaneously with the audio output, the still image file shown in the still image reproduction list is read from the optical disk and displayed on the display device 20 to reproduce one still image file Is completed, the still picture playback list is advanced by one, and the still picture playback control for reading out the still picture file of the advanced list from the optical disk and displaying it on the display means is performed simultaneously. And reproduction control means 223 for performing shuffle reproduction.

  FIG. 2 is a diagram for explaining processing until the reproduction list is divided into an audio list and a still image list and an audio reproduction list and a still image reproduction list that are actually used are created in the present embodiment.

  In FIG. 2, A indicates a reproduction list acquired from the optical disc, and this reproduction list A has a reproduction order of 1.2.3.4.5.5.6.7.8. mp3, 002. mp3, 001. jpg, 003. mp3, 002. jpg, 003. jpg, 004. jpg, 005. jpg, 004. mp3, 005. A list of file names mp3 is arranged. Here, mp3 indicates an MP3 format music file, and jpg indicates a JPEG format still image file.

  B shows an audio list of audio files (music files) distributed from the reproduction list A. In this audio list B, in accordance with the playback order 1.2.3.4.5, respectively, 001. mp3, 002. mp3, 003. mp3, 004. mp3, 005. A list of file names mp3 is arranged. C indicates a still image list of still image files distributed from the reproduction list A. In this still picture list C, the playback order 1.2.3.4.5. Respectively, 001. jpg, 002. jpg, 003. jpg, 004. jpg, 005. A list of file names jpg is arranged.

  D represents a sound reproduction list that is actually used after shuffled with respect to the sound list B by a random function (used during simultaneous shuffle reproduction). In this audio reproduction list D, 003. mp3, 001. mp3, 005. mp3, 004. mp3, 002. A list of file names mp3 is arranged. Since the list order of the audio reproduction list D is shuffled by the random function, the list order of the audio list B can be changed to 003. mp3, 001. mp3, 005. mp3, 004. mp3, 002. The playback order of the mp3 audio file can be changed to shuffle by a random function after the playback is completed.

  E indicates a still image reproduction list that is actually used by shuffling the still image list C with a random function (used during simultaneous shuffle reproduction). In the still picture reproduction list E, the reproduction order is 1.2.3.4.5. jpg, 003. jpg, 001. jpg, 005. jpg, 004. A list of file names jpg is arranged. The list order of the still picture reproduction list E can be changed to shuffle with the random function. jpg, 003. jpg, 001. jpg, 005. jpg, 004. The playback order of the still image file called jpg can be changed to shuffle by a random function after the playback is completed.

  FIG. 3 is a flowchart for explaining list distribution processing for distributing a reproduction list into an audio list and a still image list in the present embodiment. The list distribution process will be described with reference to this flowchart and FIGS.

  When the optical disc 1 in which a plurality of audio files and a plurality of still image files are recorded is inserted into the optical disc reproducing apparatus, the system controller 22 detects the insertion of the optical disc 1 (step S1), and the servo controller 4 The optical disk 1 is slightly rotated by driving the spindle motor 5 a little, and the optical pickup 2 is also driven through the servo control unit 4 to read the reproduction list data from the optical disk 1 and perform the above-described operation. The reproduction list A is acquired via the amplifier 6 and the digital signal processing unit 8 (step S2).

  Then, the list distribution unit 221 of the system controller 22 moves to a process of distributing the acquired reproduction list A into an audio list B indicating a plurality of audio files (music files) and a still image list C indicating a plurality of still image files. (Step S3). That is, the list distribution unit 221 determines whether distribution of all lists in the reproduction list A has been completed (step S4). In the determination process here, it is naturally determined that the distribution process has not ended before the distribution process starts, and thus the process proceeds to step S5.

  In step S5, it is determined whether the list read from the reproduction list A is an audio file (step S5). Since “001.mp3” is read from the reproduction list A at first, it is determined that the file is an audio file (music file). In step S6, a list of “001.mp3” is written in the audio list B (step S6). . Next, since “002.mp3” is read from the reproduction list A, it is determined that the file is an audio file (music file), and the list of “002.mp3” is written into the audio list B in step S6. Note that the audio list B and the following still image list C are stored in the RAM 25.

  Thereafter, since “001.jpg” is read from the reproduction list A, it is determined that the file is a still image file (step S7). In step S8, a list of “001.jpg” is written into the still image list C. . Next, since “003.mp3” is read from the reproduction list A, it is determined that the file is an audio file (music file) (step S5). In step S6, a list of “003.mp3” is written in the audio list B. It is.

  Thereafter, since “002.jpg” is read from the reproduction list A, it is determined that the file is a still image file (step S7). In step S8, a list of “002.jpg” is written into the still image list C. . Next, since “003.jpg” is read from the reproduction list A, it is determined that the file is a still image file (step S7). In step S8, a list of “003.jpg” is written in the still image list C. .

  Thereafter, since “004.jpg” is read from the reproduction list A, it is determined that the file is a still image file (step S7). In step S8, a list of “004.jpg” is written to the still image list C. . Next, since “005.jpg” is read from the reproduction list A, it is determined that the file is a still image file (step S7). In step S8, a list of “005.jpg” is written in the still image list C. .

  Thereafter, “004.mp3” is read from the reproduction list A, so that it is determined as an audio file (music file) (step S5). In step S6, a list of “004.mp3” is written in the audio list B. It is. Next, since “005.mp3” is read from the reproduction list A, it is determined that the file is an audio file (music file) (step S5). In step S6, a list of “005.mp3” is written into the audio list B. It is.

  FIG. 4 is a flowchart for explaining a process of simultaneously reproducing audio and still images by shuffle in the present embodiment. With reference to this flowchart and FIGS. 1 and 2, a process of simultaneously reproducing audio and still images in a shuffle will be described.

  When an instruction for simultaneous shuffle playback is given by operating the remote controller 21 (step N1), the list creation means 222 of the system controller 22 shuffles the audio list B with a random function and actually uses it (simultaneous shuffle playback). The audio playlist D is used, and the still picture playlist C is shuffled with a random function and is actually used (used for simultaneous shuffle playback). N2).

  In other words, the list creation means 222 is 001. mp3, 002. mp3, 003. mp3, 004. mp3, 005. The list of file names mp3 is shuffled by a random function, and the playback order is 003. mp3, 001. mp3, 005. mp3, 004. mp3, 002. The audio reproduction list D that has become mp3 is created. In addition, the list creation means 222 is 001. jpg3, 002. jpg, 003. jpg, 004. jpg, 005. The list of file names jpg is shuffled by a random function, and the playback order is 002. jpg, 003. jpg, 001. jpg, 005. jpg, 004. A still picture reproduction list E having jpg is created.

  Next, the reproduction control means 223 of the system controller 22 performs audio reproduction control for reproducing the audio file according to the reproduction order of the audio reproduction list D, and a still image for reproducing the still image file according to the reproduction order of the still image reproduction list E. Simultaneously with the reproduction control, the simultaneous shuffle reproduction is performed (step N3). That is, the reproduction control means 223 first reproduces the first reproduction in the audio reproduction list D 003. The mp3 file is read from the optical disc 1 and output from the speaker 19 as sound. Specifically, the reproduction control means 223 is recorded on the optical disc 1 at 003. mp3 file is read by the optical pickup 2, and the RF amplifier 6, the digital signal processing unit 8, the stream separation unit 9, the audio decoder 11, the D / A converter 16, and an audio circuit (not shown) mp3 file is processed in a predetermined manner, and the speakers 19 to 003. Audio (music) related to mp3 files is output.

  Simultaneously with this audio output, the playback control means 223 first plays back the first playback in the still picture playback list E002. The jpg file is read from the optical disc 1 and displayed on the display device 20. Specifically, the reproduction control means 223 is recorded on the optical disc 1 002. jpg file is read by the optical pickup 2, and the RF amplifier 6, the digital signal processing unit 8, the stream separation unit 9, the video decoder 15, the video processor 17, and the video encoder 18 jpg file is processed in a predetermined manner and the display device 20 receives 002. A still image related to the jpg file is displayed.

  When the reproduction control means 223 determines that reproduction of one audio file (003.mp3 file) has been completed (step N4), the reproduction control means 223 advances the reproduction target list of the audio reproduction list D by one (step N5). . In the case of this example, the reproduction target list of the audio reproduction list D is 001. A list of mp3 files will be shown. If the reproduction of all the audio files in the audio reproduction list D has not been completed (step N6), the reproduction control means 223 selects the next audio file (an audio file obtained by advancing the reproduction target list by one). Reproduction is performed (step N8). In the same manner, all the audio files in the audio reproduction list D are reproduced.

  At the same time as the playback processing related to audio, if the playback control means 223 determines that playback of one still image file (file of 002.jpg) has been completed (step N9), the playback control means 223 is the playback target of the still image playback list E. The list is advanced by one (step N10). In this example, the reproduction target list of the still image reproduction list E is 003. A list of jpg files will be shown. If the reproduction of all the still image files in the still image reproduction list E has not been completed (step N11), the reproduction control means 223 proceeds to the next still image file (the reproduction object list is advanced by one). Image file) is reproduced (step N12). Similarly, still image files of the entire list of still image reproduction list E are reproduced.

  When all the audio files in the audio reproduction list D have been reproduced (step N6) and the reproduction of the still image files in the still image reproduction list E has been completed (step N7), or still image reproduction list When the reproduction of all the still image files in the list E has been completed (step N11) and the reproduction of the audio files in the audio reproduction list D has been completed (step N13), this processing ends.

  As described above, according to the present embodiment, the optical file on which the audio file and the still image file are recorded can be shuffled simultaneously with the audio file and the still image file regardless of the recording order of the file. As a result, for example, it is possible to enjoy shuffled playback of audio while shuffled video shot with a digital camera, etc., so that users can enjoy viewing more and the use value of the device is increased. .

  The present invention provides a function that allows an audio file and a still image file to be shuffled simultaneously on an optical disc on which an audio file and a still image file are recorded, regardless of the recording order of the files, such as a DVD player or a DVD recorder. Can be adopted.

It is a block diagram which shows the structure of the optical disk reproducing | regenerating apparatus concerning one Embodiment of this invention. It is a figure for demonstrating the process until the reproduction list for audio | voices and the still image reproduction list | wrist which are actually used by allocating a reproduction list | wrist to the audio | voice list | wrist and the still image list in the said embodiment. It is a flowchart for demonstrating the list distribution process which distributes a reproduction | regeneration list into an audio | voice list and a still image list in the said embodiment. 4 is a flowchart for explaining processing for simultaneously reproducing audio and a still image by shuffle in the embodiment.

Explanation of symbols

1 Optical disk 19 Speaker (Audio output means)
20 Display device (display means)
22 System Controller 221 List Distribution Unit 222 List Creation Unit 223 Playback Control Unit A Playback List B Audio List C Still Image List D Audio Playback List E Still Image Playback List

Claims (1)

In an optical disc playback apparatus for playing back information recorded on an optical disc,
All the files described in the playlist are acquired from the optical disc in which a plurality of audio files and a plurality of still image files are recorded , and the playlist indicates the audio list indicating the plurality of audio files and the plurality of still image files. List distribution means for distributing to still image list by file extension,
A list creating means for creating a playlist for audio by shuffling with a random function for the audio list and creating a playlist for still image by shuffling with a random function for the still image list;
The audio file shown in the audio reproduction list is read from the optical disk and output from the audio output means. When reproduction of one audio file is completed, the reproduction target list of the audio reproduction list is advanced by one, and this one is advanced. The audio reproduction control for reading out the audio file of the list from the optical disc and outputting the audio from the audio output means, and simultaneously reading the still image file shown in the reproduction list for still images from the optical disc and displaying it on the display means. When the reproduction of the still image file ends, the still image reproduction control for advancing the list to be reproduced of the still image reproduction list by one, reading the still image file of the one advanced list from the optical disk and displaying it on the display means; System controller having playback control means for performing simultaneous shuffle playback at the same time Optical disk reproducing apparatus comprising the La.

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