JP2008278237A - Video playback device, video playbacking method and video playback program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video playback device for performing fast forwarding and fact backwarding of video by synthesizing primary video from an optical disk with secondary video being streaming video to display them. <P>SOLUTION: The video playback device comprises a reading part (19) for reading first video information accompanied with position information from an optical disk, a communicating part (11) for downloading second video information from an external device in synchronization with the first video information through a network, a decoding part (23) for decoding the first video information read by the reading part and the second video information downloaded by communicating part, and a control part (30 and 42) for synthesizing the second video information in a picture corresponding to the first video signal and outputting the second video information, continuously and partially downloading the second video information corresponding to position information where fast forwarding or fast backwarding of the first video information is performed without interrupting the downloading of the second video information when receiving a fast forwarding or fast backwarding instruction signal during outputting the synthesized video, and downloading the second video information insufficient in the partial downloading when receiving a playback instruction again. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a video playback apparatus and a video playback method for synthesizing and displaying an externally streamed video in a video playback screen of an optical disc.

  Recently, with the spread of digital video technology, many technologies for reproducing digital video signal streams via a communication network or the like are known. In other words, it is a technique for playing back a video stream while downloading it along with the progress of playback via a communication network or the like.

Patent Document 1 discloses a technique for realizing a quick fast-forward reproduction on a portable communication terminal device having a streaming reproduction function without using a server having a special fast-forward distribution function.
JP 2006-287875 A

  However, the above-described conventional technique of Patent Document 1 is a technique for reproducing this stream as a single unit when the mobile communication terminal reproduces or fast-forwards this stream. Therefore, for example, in a video playback apparatus that plays back a stream on an optical disc such as an HD DVD (High Definition Digital Versatile Disc), the stream on the optical disc is set as the primary video, and the Web address included in the stream on the optical disc indicates When a video obtained by accessing and streaming (playing back while downloading) is used as a secondary video, the case where the secondary video is synthesized and displayed in the primary video is not considered. Furthermore, in the prior art of Patent Document 1, there is no description showing how to perform efficient streaming when fast-forward or fast-reverse is executed in simultaneous playback of such primary video and secondary video.

  An object of the present invention is to provide a video playback apparatus, a video playback method, and a video playback program that synthesize and display a secondary video that is a streaming video on a primary video from an optical disc, and further fast forward or fast reverse these videos. And

One embodiment for solving the problem is:
A reading unit (19) for reading first video information accompanied by position information from the optical disc;
A communication unit (11) for downloading second video information from an external device via a network;
A decoding unit (23) for decoding the first video information read by the reading unit and the second video information downloaded by the communication unit;
A synthesizing unit (31) that synthesizes another video with the video according to the first video information decoded by the decoding unit;
In response to an operation signal received during reproduction of the first video information, the communication unit accesses the external device indicated by the address information stored in the optical disc, and the second video information is transmitted to the first video information. The second video information is downloaded by synchronizing with the information, and the second video information is synthesized and output by the synthesis unit in a screen corresponding to the first video information decoded by the decoding unit. Upon receipt of the return instruction signal, the second video information is partially downloaded according to the position information where the first video information is fast-forwarded or fast-returned without interrupting the download of the second video information. When the instruction to reproduce the first video information is received again, the second video information that is insufficient for the partial download and the second video information corresponding to the reproduction position of the first video information are downloaded. The second video information combined with the partial second video information downloaded during fast-forward or fast-reverse of the first video information is synthesized with the video according to the first video information by the synthesis unit And a control unit (30, 42) for outputting,
A video reproducing apparatus comprising:

  When fast-forwarding, etc., when streaming video is combined with video from an optical disk, when streaming video stream is downloaded partially in advance without interruption, when returning from fast-forwarding, etc. to playback Stream video can be quickly returned.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Video Playback Device According to an Embodiment of the Present Invention>
Hereinafter, an example of a video playback apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. However, the video playback apparatus according to an embodiment of the present invention is limited to the embodiment described below. For example, it is also preferable to use an optical disk playback-only device having a communication function. FIG. 1 is a block diagram showing an example of the configuration of a video playback apparatus according to an embodiment of the present invention. FIG. 2 is an explanatory diagram illustrating an example of a primary screen and a secondary screen that are also displayed by the video playback device.

(Constitution)
First, the video reproduction apparatus 10 shown in FIG. 1 has two types of disk drive units. First, it has an optical disk drive unit 19 that rotationally drives an optical disk D as a first medium, which is an information recording medium capable of constructing a video file, and executes reading and writing of information. Here, the optical disc D is an HD DVD as an example, but is not limited thereto. Further, it has a hard disk drive unit 18 for driving a hard disk as a second medium. The control unit 30 is connected to each unit via a data bus so as to control the overall operation.

  The video playback apparatus 10 shown in FIG. 1 includes an encoder unit 21 that constitutes a recording side, an MPEG decoder unit 23 that constitutes a playback side, and a control unit 30 that controls the operation of the apparatus main body. Yes. The video reproduction apparatus 10 includes an input-side selector unit 16 and an output-side selector unit 17, and the input-side selector unit 16 includes a communication unit 11 such as a LAN and a so-called satellite broadcast (BS / CS). The tuner unit 12 and a so-called terrestrial tuner unit 13 are connected to output a signal to the encoder unit 21. The BS / CS tuner unit 12 is connected to a satellite antenna, and the terrestrial tuner unit 13 is connected to a terrestrial antenna. The video reproduction apparatus 10 also includes an encoder unit 21, a data editing unit 20 that receives the output of the encoder unit 21 and performs desired data processing such as data editing, and a hard disk drive unit 18 connected to the data editing unit 20. And an optical disk drive unit 19. Further, the video reproduction apparatus 10 includes a hard disk drive unit 18, an MPEG decoder unit 23 that receives and decodes signals from the optical disc drive unit 19, an encoder unit 21, a buffer unit 22, an MPEG decoder unit 23, and a multiplexing unit. Unit 28, separation unit 29, control unit 30, OSD unit 31 that synthesizes desired video on the video screen, secondary management unit 42, and scheduled recording unit 43 that generates a reservation list and program guide image ing. Each of these units is connected to the control unit 30 via a data bus. Further, the output of the selector unit 17 is connected to an external receiver 41 or supplied to an external device via an interface unit 27 that communicates with the external device.

  Furthermore, the video reproduction apparatus 10 includes an operation unit 32 that is connected to the control unit 30 via a data bus and receives a user operation or a remote control R operation. Here, the remote controller R is capable of almost the same operation as the operation unit 32 provided in the main body of the video reproduction device 10, and includes a recording / reproduction instruction, an editing instruction, Various settings such as tuner operations and scheduled recording settings can be made.

(Operation)
Basic Operation In the video playback apparatus 10 having such a configuration, an outline of playback processing and recording processing will be described using an optical disc as an example. That is, the optical disk D rotated at a predetermined speed under the control of the control unit 30 is irradiated with laser light, and the reflected light is detected by the optical pickup, and a detection signal based on this is output. Based on this detection signal, an RF signal is generated, and a reproduction process is performed following the data reading process.

  In the optical disc recording process, data supplied via the selector unit 16 via an input unit (not shown), for example, is supplied to the encoder unit 21 and encoded and output under the control of the control unit 30. In accordance with the encoded output and the output of the control unit 30, the drive current of the laser driver is supplied to the optical pickup, and the recording process is performed by irradiating the storage area of the optical disc D.

Recording Process etc. Next, the operation of the video playback apparatus 10 having such a configuration will be described in more detail. First, the operation during recording will be described in detail, including other embodiments. As an input side of the video reproduction apparatus 10, a communication unit 11 such as a LAN is connected to an external device, and communicates with a server S or the like via a communication path such as the Internet via a modem M or the like. Etc. The BS / CS tuner unit 12 and the terrestrial tuner unit 13 select a broadcast signal via an antenna, demodulate it, and input a video signal and an audio signal, and correspond to a wide variety of broadcast signals. For example, it covers terrestrial analog broadcasting, terrestrial digital broadcasting, BS analog broadcasting, BS digital broadcasting, CS digital broadcasting, and the like, but is not limited thereto. Also, it is not always necessary to provide only one. For example, it has two or more tuners for terrestrial analog broadcasting and two or more BS / CS tuners, and functions in parallel in accordance with the reservation recording request. This includes cases where

  The communication unit 11 may be an IEEE 1394 interface and can receive digital content from an external device on the network. It is also possible to receive a luminance signal, a color difference signal, a video signal such as a composite, and an audio signal from an input end (not shown). These are controlled by the selector unit 16 controlled by the control unit 30 and the like, and are selectively supplied to the encoder unit 21 by being controlled.

  The encoder unit 21 includes a video and audio analog-to-digital converter that digitizes the analog video signal and analog audio signal input by the selector unit 16, a video encoder, and an audio encoder. Furthermore, a sub-picture encoder is also included. The output of the encoder unit 21 is converted into a predetermined compression format such as MPEG and supplied to the previous control unit 30.

  The BS / CS tuner or the like is not necessarily built in, but is externally attached via the data input terminal, and the received digital signal is supplied to the encoder part 21 and the control part 30 via the selector part 16. It is also suitable.

  Here, the video reproduction apparatus 10 shown in FIG. 1 sends the information encoded by the encoder unit 21 (packs of video, audio, sub-picture data, etc.) and the created management information via the control unit 30 to the hard disk drive unit 18. Alternatively, it can be supplied to the optical disk drive unit 19 and recorded on the hard disk drive unit 18 or the optical disk D. Information recorded on the hard disk drive unit 18 or the optical disk D can also be recorded on the optical disk D or the hard disk drive unit 18 via the control unit 30 and the optical disk drive unit 19.

・ Reproduction processing, etc.
Next, a process for reproducing recorded information will be described in detail including other embodiments. The MPEG decoder unit 23 includes a video processor that appropriately synthesizes the decoded sub-video with the decoded main video, and outputs the main video with a menu, a highlight button, subtitles, and other sub-videos.

  The output audio signal of the MPEG decoder unit 23 is converted into an analog signal by a digital / analog converter (not shown) via the selector unit 17 and supplied to a speaker or supplied to an external device via an interface unit 27. The selector unit 17 is controlled by a select signal from the control unit 30. Accordingly, the selector unit 17 can directly select a signal that has passed through the encoder unit 21 when directly monitoring the digital signals from the tuner units 12 and 13.

  Further, as shown in FIG. 2, the control unit 30 and the secondary management unit 42 play back a video stream stored on an optical disc such as an HD DVD, as shown in FIG. The secondary video H2 can be displayed while being synchronized with the primary video H1 by instructing by the operation. The secondary video H2 is, for example, one of HD DVD standards, and is a video stream downloaded from a server S on the Web based on a Web address or the like stored on the optical disc as an example. For example, if the optical disc stores a movie, a video or the like explaining the work by the movie director may be recorded.

  The video reproduction apparatus 10 of this embodiment has a comprehensive function as described above, and performs recording / reproduction processing with respect to many sources by the optical disc D or the hard disk drive unit 18. Next, the reserved recording process of the video reproduction apparatus 10 will be described in detail with reference to the drawings.

<Example of Advance Download Processing of Secondary Video of Video Playback Device which is Embodiment of the Present Invention>
Next, the advance download process of the secondary video, etc. of the video playback apparatus 10 will be described in detail below with reference to flowcharts. FIG. 3 is an explanatory diagram showing the relationship between a primary stream and a secondary stream that are played back by a video playback device in which the present invention is not implemented. FIG. 4 is an explanatory diagram showing an example of a download process in a video playback apparatus in which the present invention is not implemented.

(Overview)
The display function by the control unit 30 and the secondary management unit 42 of the video playback apparatus 10 according to the embodiment of the present invention is, for example, a video stream stored on an optical disc such as an HD DVD while playing back video on the screen. By instructing a part by a cursor operation of the remote controller R or the like, as shown in FIG. 2, the secondary video H2 can be displayed while being synchronized with the primary video H1. This function is one of HD DVD standards, for example, and is performed based on the secondary video H2 downloaded from the server S on the Web based on the Web address or the like stored on the optical disc as an example. When the optical disc stores a movie, for example, a video or the like describing a work by a movie director is recorded.

  The control unit 30 and the secondary management unit 42 of the video playback device 10 can recognize the current playback position of the primary video H1 from the time code information in the stream of the primary video H1 on the optical disc. Accordingly, the control unit 30 and the secondary management unit 42 can download the video stream of the secondary video H2 from the server S or the like in synchronization.

-Bug As described above, both the primary video H1 and the secondary video H2 are reproduced based on one time axis. Here, when download reproduction is performed in the network streaming format, it is necessary to continuously supply data such as an image signal smaller than the total image data amount to the buffer unit 22 or the like so that the image reproduction is not interrupted. It is important how much data is filled in the buffer unit 22, and it is ideal that a sufficient amount of video signal is always present in the buffer unit 22 during video playback.

  That is, let us consider a case where the primary video H1 and the secondary video H2 are normally played back from the optical disc D and the network streaming in a synchronized manner when the present invention is not implemented. The secondary streaming download behavior when the user fast forwards (or special playback such as fast reverse) for a certain period of time using the remote controller R for a period of normal playback after a while will be described. 3 and 4 show the primary video H1 and the secondary video H2 when the present invention is not implemented.

  That is, in FIG. 3 and FIG. 4, when the user starts fast-forwarding with the remote controller R or the like at time t1, the streaming download of the secondary video H2 is stopped. Only when the normal reproduction is resumed (b), the video data from the reproduction time t2 is downloaded again by streaming from the network.

  Here, as shown in FIG. 4, the buffer unit 22 for streaming download is sufficiently filled from the reproduction time t2 when the user tried to resume the normal reproduction until the secondary reproduction is actually resumed. Time (c) is required, and the user feels a delay in reproducing the secondary video H2. The cause of such a defect stems from the fact that the time from which the secondary video H2 should be acquired cannot be determined unless the fast-forwarding ends.

(Description of operation using flowchart)
In the video playback apparatus according to an embodiment of the present invention, when fast-forwarding or the like is performed when a stream video is combined and displayed on a video from an optical disc, the streaming video streaming download is partially downloaded in advance without interruption. By doing so, the stream video is quickly returned when returning from fast-forwarding or the like to playback.

  FIG. 5 is an explanatory diagram showing the relationship between the primary stream and the secondary stream that are played back by the video playback apparatus according to the embodiment of the present invention. FIG. 6 is an explanatory diagram showing an example of the preceding download process. FIG. 7 is an explanatory view showing the relationship between the primary stream and the secondary stream. FIG. 8 is an explanatory diagram showing an example of the preceding download process. FIG. 9 is a flowchart showing an example of the preceding download process.

  Note that each step in the flowchart of FIG. 9 below can be replaced with a circuit block, and therefore all steps in each flowchart can be redefined as a block.

  In the video reproduction apparatus 10 according to the embodiment of the present invention, first, the control unit 30 is in a standby state for an optical disk reproduction instruction from the remote controller R or the like (step S11). If there is a reproduction instruction, the control unit 30 controls the optical disc drive unit 19, the MPEG decoder unit 23, the separation unit 29, the audio / video processing unit 24, etc., and reproduces the video stream (primary video H1) on the optical disc D. (Step S12).

  Further, when the control unit 30 and the secondary management unit 42 receive the reproduction instruction signal for the secondary video H2 from the remote controller R or the like with respect to the currently reproduced primary video H1 (step S13), the control unit 30 and the secondary management unit 42 A time code indicating the reproduction position is detected (step S13). Then, the web address of a specific server site on the web is detected from the video stream of the optical disc D, the site is accessed using the communication unit 11 or the like according to this web address, and the stream is streamed from the position corresponding to the time code. Is downloaded (step S15).

  Then, the control unit 30 and the secondary management unit 42 reproduce the downloaded video of the stream, synthesize it with the video of the stream from the optical disc D using the OSD unit 31, and output the screen as shown in FIG. Is realized (step S16).

  Then, the control unit 30 and the secondary management unit 42 confirm whether or not there is an instruction signal such as fast forward (fast reverse) from the remote controller R or the like in the state of the screen shown in FIG. 2 (step S17). When the control unit 30 and the secondary management unit 42 detect an instruction signal such as fast forward (fast reverse) from the remote controller R or the like, the control unit 30 and the secondary management unit 42 are supposed to be used for playback when returning to playback while fast forwarding (fast reverse) the stream of the optical disc D. To be downloaded in advance (step S18).

  At this time, the control unit 30 and the secondary management unit 42 do not download the entire secondary video H2 so that it is streamed as in normal playback. As an example, as shown in FIG. 5, if the control unit 30 and the secondary management unit 42 play the primary video H1 of about ¼ (about 25%) on the optical disc D by fast-forwarding at 4 × speed, In addition, it is preferable to perform a prior download (speculative download) of about 1/4 (about 25%) of the secondary video H2, but the present invention is not limited to this embodiment.

  In this way, when the control unit 30 and the secondary management unit 42 partially download the secondary video H2 in advance, as shown in FIG. The stream video can be quickly returned by the shortened time (c).

  However, the present invention is not limited to such an embodiment. For example, when the secondary video H2 is downloaded easily, a setting such as about 75% or more of the secondary video H2 is downloaded as described later in FIG. Likewise suitable.

  Then, when the control unit 30 and the secondary management unit 42 detect a playback instruction from the remote controller R or the like from a state such as fast-forwarding, the control unit 30 and the secondary management unit 42 newly download a stream that is insufficient in the previously downloaded stream. The secondary video H2 is reproduced together with the downloaded stream. At the same time, the download of the secondary video H2 is resumed according to the progress indicated by the time code of the primary video H1 (step S20). Then, the downloaded stream video is reproduced, synthesized with the stream video from the optical disc, and output (step S21).

  During fast-forwarding (fast-rewinding), a part of the secondary video H2 that has been downloaded in advance is displayed together with the dropped primary video H1 being fast-forwarded (fast-rewinding), and both videos are synchronized. It is also preferable to display both images as fast forward (fast reverse) images. Further, during fast forward (fast reverse), it is also preferable to display only the dropped primary video H1 and not the secondary video H2.

  Furthermore, as another embodiment, as shown in FIG. 7, the control unit 30 and the secondary management unit 42 always download the secondary video H2 in a state where the secondary video H2 is advanced by a predetermined time (α seconds) from the progress of the primary video H1. It is preferable to keep it. By doing so, for example, when returning to playback from fast forward or the like at playback time t2, the secondary video H2 downloaded in advance is stored in the buffer unit 22 in a state advanced by a predetermined time (α seconds). Therefore, as shown in FIG. 8, since the download pieces are accumulated in the buffer unit 22 up to a predetermined time (α seconds), for example, only the shortage R is insufficient as shown in FIG. First, the control unit 30 and the secondary management unit 42 can restore the reproduction of the secondary video H2 very quickly.

  If there is no playback instruction during fast forward (fast reverse) in step S19, the video data of the secondary video H2 from the previous download continues to be stored in the buffer unit 22, but the control unit 30 and secondary management It is preferable that the unit 42 appropriately deletes video data that is no longer usable (step S22). However, the processing according to the present invention does not necessarily need to be deleted.

  With the various embodiments described above, those skilled in the art can realize the present invention. However, it is easy for those skilled in the art to come up with various modifications of these embodiments, and have the inventive ability. It is possible to apply to various embodiments at least. Therefore, the present invention covers a wide range consistent with the disclosed principle and novel features, and is not limited to the above-described embodiments.

The block diagram which shows an example of a structure of the video reproduction apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the primary screen displayed by the video reproduction apparatus concerning one Embodiment of this invention, and a secondary screen. Explanatory drawing which shows the relationship between the primary stream and secondary stream which are reproduced | regenerated by the video reproduction apparatus in which this invention is not implemented. Explanatory drawing which shows an example of the download process in the video reproduction apparatus in which this invention is not implemented. Explanatory drawing which shows the relationship between the primary stream and secondary stream which are reproduced | regenerated by the video reproduction apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the prior | preceding download process in the video reproduction apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows the relationship between the primary stream and secondary stream which are reproduced | regenerated by the video reproduction apparatus which concerns on one Embodiment of this invention. Explanatory drawing which shows an example of the prior | preceding download process in the video reproduction apparatus which concerns on one Embodiment of this invention. The flowchart which shows an example of the prior | preceding download process in the video reproduction apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Communication part, 12 ... BS / CS tuner part, 13 ... Terrestrial tuner part, 18 ... Hard disk drive part, 19 ... Optical disk drive part, 20 ... Data editing part, 21 ... Encoder part, 22 ... Buffer part, 23 ... MPEG decoder section, 24 ... audio / video processing section, 26 ... display, 27 ... I / F section, 28 ... multiplexing section, 29 ... demultiplexing section, 30 ... control section, 31 ... OSD section, 32 ... operation section, 33 ... Display unit, R ... remote control, 42 ... secondary management unit, 43 ... reserved recording unit.

Claims (10)

A reading unit for reading first video information accompanied by position information from the optical disc;
A communication unit for downloading second video information from an external device via a network;
A decoding unit for decoding the first video information read by the reading unit and the second video information downloaded by the communication unit;
A synthesizing unit that synthesizes another video with the video according to the first video information decoded by the decoding unit;
In response to an operation signal received during reproduction of the first video information, the communication unit accesses the external device indicated by the address information stored in the optical disc, and the second video information is transmitted to the first video information. The second video information is downloaded by synchronizing with the information, and the second video information is synthesized and output by the synthesis unit in a screen corresponding to the first video information decoded by the decoding unit. Upon receiving a return instruction signal, the download of the second video information repeatedly repeats the partial download of the second video information according to the position information reproduced discontinuously by fast-forwarding or fast-returning the first video information, When the reproduction instruction for the first video information is received again, the reproduction of the second video information and the first video information which are insufficient to resume the reproduction excluding the partially downloaded video information. The second video information is downloaded after the first video information, and the second video information combined with the partial second video information downloaded during fast-forwarding or fast-rewinding of the first video information is downloaded by the combining unit. A video reproduction apparatus comprising a control unit that synthesizes and outputs one video information video.   2. The video reproduction apparatus according to claim 1, wherein the position information used when the control unit downloads the second video information is time code information included in the first video information.   2. The video reproduction apparatus according to claim 1, wherein the control unit downloads the second video information by accessing the communication unit according to an address of a website on the Internet stored in the optical disc.   The control unit performs a partial download of the second video information according to position information that precedes the position information where the first video information is fast-forwarded or fast-returned by a predetermined amount. Item 2. The video playback device according to Item 1.   When the controller reproduces a predetermined percentage of video information instead of all of the first video information when fast-forwarding or fast-rewinding the first video information, the control unit The video playback apparatus according to claim 1, wherein the video information for the predetermined percentage is downloaded.   The controller reproduces the fast-forward or fast-reverse video of the first video information when the fast-forward or fast-rewind of the first video information is performed and displays the video on the screen. The video playback apparatus according to claim 1, wherein the video playback apparatus combines the fast-rewind video and plays back the fast-forward or fast-rewind video according to the second video information.   The controller is configured to fast forward or fast forward the first video information among the partial second video information accumulated by downloading in advance when the first video information is fast-forwarded or fast-rewinded. 2. A video reproducing apparatus according to claim 1, wherein information which becomes unnecessary due to the continuous return is automatically deleted. Read and play back the first video information with position information from the optical disc,
In response to an operation signal received during reproduction of the first video information, an external device indicated by address information stored in the optical disc is accessed via a network, and the second video information corresponding to the position information is Download in sync with the first video information,
The downloaded second video information is reproduced and synthesized with the video corresponding to the first video information and output.
When a fast-forward or fast-reverse instruction signal is received during output of the composite video, the second video information is downloaded in accordance with the position information corresponding to the position information reproduced discontinuously by fast-forward or fast-reverse of the first video information. 2 Repeated partial download of video information,
When the reproduction instruction for the first video information is received again, the second video information that is insufficient to resume the reproduction excluding the partially downloaded video information and the first video information after the reproduction position of the first video information. 2. Downloading two pieces of video information and combining and outputting the second video information combined with the partial second video information downloaded during fast forward or fast reverse of the first video information Playback method. A video playback program that executes the following operations by being used in the control unit of the video playback device,
Read and play back the first video information with position information from the optical disc,
In response to an operation signal received during the reproduction of the first video information, the second video information is downloaded in synchronization with the first video information by accessing an external device indicated by the address information stored in the optical disc. ,
The downloaded second video information is reproduced and synthesized with the video corresponding to the first video information and output.
When the fast-forward or fast-reverse instruction signal is received while outputting the synthesized video, the second video information is downloaded according to the position information that is discontinuously reproduced by fast-forward or fast-reverse of the first video information. Repeat partial download of video information,
When the reproduction instruction for the first video information is received again, the second video information that is insufficient to resume the reproduction excluding the partially downloaded video information and the first video information after the reproduction position of the first video information. Performing download of two video information, and combining and outputting the second video information combined with the partial second video information downloaded during fast forward or fast reverse of the first video information. Feature video playback program. A reading unit for reading first video information accompanied by time code information from the optical disc;
A communication unit for downloading second video information from an external device via a network;
A decoding unit for decoding the first video information read by the reading unit and the second video information downloaded by the communication unit;
A synthesizing unit that synthesizes another video with the video according to the first video information decoded by the decoding unit;
In response to an operation signal received during the reproduction of the first video information, the communication unit accesses the external device indicated by the address information stored in the optical disc, and the second code corresponding to the time code information A controller that downloads video information in synchronization with the first video information, and synthesizes and outputs the second video information by the synthesizer in a screen corresponding to the first video information decoded by the decoder; A video reproduction apparatus characterized by:

Images