JP2005086434A - Video recording and reproducing apparatus, reception apparatus, control method, and control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video recording and reproducing apparatus and a video recording and reproducing method which enable pictures to be recorded or reproduced while skipping only specific scenes in programs of digital broadcasting. <P>SOLUTION: A channel is selected by a tuner part 10 and a demodulation part 11 to select one TS stream. A specific program of a specific channel is selected by selecting a desired packet by a TS decoder 12. A main line video voice signal is decoded by a MPEG decoder 13 and is displayed on an external monitor 18. An event message detection part 14 detects an event message for commercial switching of data broadcasting, and this detection of the event message is input to a picture recording and reproducing control part 15, and the pictures of the program where commercials are skipped are stored into a hard disk by the control of the picture recording and reproducing control part 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a recording / reproducing apparatus, a receiving apparatus, a control method, and a control program, and more particularly to a technique for controlling recording, reproduction, and display of a main line video using a data broadcast event message in digital broadcasting.

  2. Description of the Related Art Conventionally, there is a recording / playback device that can detect a specific scene such as a commercial in a broadcast program, and can record and playback by skipping the specific scene (for example, Prior Art Document 1).

Japanese Patent Laid-Open No. 3-184484

  In these recording / playback apparatuses, a specific scene such as a commercial is detected by detecting an audio mode in a broadcast program and a commercial confirmation code inserted into a VITC (Vertical Interval Time Code), and recording the scene. It was realized by skipping.

  However, television broadcasts are shifting from analog broadcasts to digital broadcasts. In digital broadcasts, audio modes are not changed and VITC is not transmitted, and conventional techniques cannot perform skip recording and playback of specific scenes.

  Therefore, the present invention has been invented in view of the above problems, and a recording / playback apparatus capable of recording or playing back only a specific scene in the main program even if the purpose is digital broadcasting. It is to provide a recording / playback method.

A first invention for solving the above-described problem is a digital broadcast recording / reproducing apparatus,
Event message detecting means for detecting an event message to be broadcast;
And recording / playback control means for controlling recording or playback of video / audio data on the main line side based on the detected event message.

  According to a second aspect of the present invention for solving the above-mentioned problems, in the first aspect, the recording / playback control means is configured to determine an in point or an out point of a video / audio specific scene on the main line side based on the detected event message. , And a means for recording or reproducing the video / audio on the main line side by skipping the specific scene.

  According to a third invention for solving the above-mentioned problem, in the first or second invention, the recording / playback control means generates metadata relating to video / audio on the main line based on the detected event message. Based on this metadata, it is a means for controlling the reproduction of the recorded video / audio on the main line side.

  According to a fourth aspect of the present invention for solving the above-described problems, in any one of the first to third aspects, the recording / playback control means is configured to specify a video / audio specific scene on the main line side based on the detected event message. It is a means for detecting an in point or an out point of the image and reproducing other video / audio in place of the specific scene.

A fifth invention for solving the above-mentioned problems has recording means for recording an event message in any one of the first to fourth inventions,
The recording / playback control means is means for controlling the playback of the recorded video / audio based on a recorded event message when the recorded video / audio is played back. .

  A sixth invention for solving the above-mentioned problems is characterized in that, in any one of the first to fifth inventions, the event message is an event message for switching contents broadcast by data broadcasting.

  According to a seventh invention for solving the above-mentioned problems, in any one of the first to sixth inventions, the event message is an event message for recording control.

An eighth invention for solving the above problems is a digital broadcast receiving apparatus,
Event message detecting means for detecting an event message to be broadcast;
And display control means for controlling the display of video / audio on the main line side based on the detected event message.

  According to a ninth invention for solving the above-mentioned problem, in the eighth invention, the display control device calculates an in point or an out point of a specific scene of the video / audio on the main line side based on the detected event message. It is a means for detecting and displaying other video / audio in place of the specific scene.

  A tenth invention for solving the above-mentioned problems is characterized in that, in the above-mentioned eighth or ninth invention, the event message is an event message for switching contents broadcast by data broadcasting.

An eleventh invention for solving the above problem is a digital broadcast recording / playback control method,
Detecting a broadcast event message;
And a step of controlling recording or reproduction of video / audio data on the main line side based on the detected event message.

A twelfth invention for solving the above problem is a digital broadcast display control method,
Detecting an event message for detecting an event message to be broadcast;
And a step of controlling display of video / audio on the main line side based on the detected event message.

A thirteenth invention for solving the above-mentioned problem is a control program for a recording / playback apparatus for digital broadcasting,
The control program records a recording / playback device,
Event message detecting means for detecting an event message to be broadcast;
Based on the detected event message, it functions as a recording / playback control means for controlling recording / playback of video / audio data on the main line side.

  In a fourteenth aspect of the present invention that solves the above-described problem, in the thirteenth aspect, the control program causes the recording / playback control means to detect a specific scene of video / audio on the main line based on the detected event message. An in point or an out point is detected, and the specific scene is skipped to function as means for recording or reproducing the video / audio on the main line side.

  According to a fifteenth aspect of the present invention for solving the above-described problems, in any one of the thirteenth and fourteenth aspects, the control program causes the recording / playback control means to perform video on the main line side based on the detected event message. A feature is that metadata related to sound is generated and functions as means for controlling reproduction of recorded video / sound on the main line side based on the metadata.

  According to a sixteenth aspect of the present invention for solving the above-described problems, in any one of the thirteenth to fifteenth aspects, the control program causes the recording / playback control means to perform video on the main line side based on the detected event message. The feature is that an in point or an out point of a specific scene of audio is detected and functions as means for reproducing other video / audio in place of the specific scene.

In a seventeenth invention for solving the above-described problem, in any one of the thirteenth to sixteenth inventions, the control program causes the recording / playback apparatus to function as a means for recording an event message.
Further, when the recorded video / audio is played back, the recording / playback control means functions as a means for controlling playback of the recorded video / audio based on the recorded event message. Features.

  An eighteenth invention for solving the above-mentioned problems is characterized in that, in any one of the thirteenth to seventeenth inventions, the event message is an event message for switching contents broadcast by data broadcasting.

  A nineteenth invention for solving the above-mentioned problems is characterized in that, in any of the thirteenth to eighteenth inventions, the event message is an event message for recording control.

A twentieth invention for solving the above problems is a control program for a receiving apparatus for displaying video / audio on the main line side of digital broadcasting,
The control program causes the receiving device to
Event message detecting means for detecting an event message to be broadcast;
Based on the detected event message, it is made to function as display control means for controlling display of video / audio on the main line side.

  In a twenty-first aspect of the present invention that solves the above-described problem, in the twentieth aspect, the control program causes the display control device to input a video / audio specific scene on the main line side based on the detected event message. A point or an out point is detected and functioned as means for displaying other video / audio in place of the specific scene.

  A twenty-second invention for solving the above-mentioned problems is characterized in that, in the twentieth or twenty-first invention, the event message is an event message for switching contents broadcast by data broadcasting.

  According to the present invention, even a digital broadcast can be recorded, reproduced or displayed by skipping only a specific scene in the main program.

  Further, according to the present invention, a specific scene can be reproduced or displayed in place of another scene.

  The present invention is characterized in that an event message to be broadcast is detected, thereby controlling recording, reproduction or display of the video / audio data on the main line being received.

  As an event message to be used, an event message for switching data broadcasting contents can be considered. As another example, an event message that directly controls recording of the recording / playback apparatus, for example, an event message that controls stop / start of recording, or an event message that specifies an in point or an out point of a specific scene can be considered. Any other event message that achieves the same function may be used.

  Further, the present invention detects a broadcast event message, thereby detecting an in point or an out point of a specific scene of video / audio on the main line side, and generates metadata regarding the in point or the out point. And based on this metadata, a specific scene is skipped and the recorded video / audio is reproduced.

  As the event message to be used, an event message for switching the content of data broadcasting can be considered as described above. Alternatively, an event message for controlling recording of the recording / playback apparatus, for example, an event message for controlling stop / start of recording, or an event message for specifying an in point or an out point of a specific scene may be considered. Any other event message that achieves the same function may be used.

  Hereinafter, specific examples will be described in detail. In the following description of the embodiments, the specific video will be described using a commercial video as an example. However, the present invention is not limited to this, and a specific scene of the main program may be used.

  The recording / reproducing apparatus of Example 1 concerning this invention is demonstrated.

  In the first embodiment, an event message for switching data broadcasting contents will be described as an example of an event message to be used.

    First, digital broadcasting to which the recording / reproducing apparatus of the present invention is applied will be described.

  A program in digital broadcasting is composed of main line video, main line audio, data of data broadcast, and the like. Data of data broadcasting is described in BML (Broadcast Markup Language), and BML files, audio, images, data files, event messages, and the like are collected into one data broadcasting content. Data broadcasting programs may be related content synchronized with the main line (so-called normal TV broadcast), or may be different from the main line, but usually the main line (so-called normal TV broadcast) Synchronized related content.

  FIG. 1 is an example of a display screen at the time of drama broadcasting (main line side) in digital broadcasting, and FIG. 2 is an example of a display screen at the time of commercial video broadcasting (main line side) in digital broadcasting.

  As shown in FIG. 1, while a drama program is being broadcast, drama content is also displayed in the data broadcast. When the drama program broadcast is switched to the commercial broadcast, the data broadcast is also switched from the drama program content to the commercial content, and the commercial content is displayed as shown in FIG.

  An event message is used as a trigger signal for switching the content display of data broadcasting. This event message is used for the purpose of changing the display of the data broadcast content at a certain timing of the program.

  FIG. 3 is a time chart showing an example of the display shown in FIGS. In synchronization with the change of the main line video from drama → commercial → drama, an event message for content display switching is sent from the broadcasting station. In an ordinary digital broadcast receiver, the event message for switching the display is received, and the content of the data broadcast is also switched in synchronization with the event message.

  The recording / playback apparatus according to the first embodiment uses the above-described event message for switching content in data broadcasting to detect a specific scene, skips only a specific scene, and records / plays back, or records / plays back only a specific scene. You can do it.

  FIG. 4 shows an example of a block diagram of the recording / playback apparatus in the first embodiment.

  As shown in FIG. 4, the recording / playback apparatus according to the first embodiment includes a tuner unit 10, a demodulation unit 11, a TS decode 12, an MPEG decoder 13, an event message detection unit 14, and a recording / playback control unit 15. , A hard disk 16 and an input unit 17 for instructions and the like.

  In such a configuration, the tuner unit 10 and the demodulation unit 11 perform channel selection and select one TS stream. By selecting a desired packet by the TS decode 12, a specific program of a specific channel is selected. The main line video / audio signal is decoded by the MPEG decoder 13 and displayed on the external monitor 18.

  The event message detection unit 14 detects an event message for switching contents in data broadcasting. The detection of the event message is input to the recording / playback control unit 15, and the video of the program with the commercial skipped is stored in the hard disk 16 under the control of the recording / playback control unit 15. The event message detection unit 14 can also be performed by a data carousel decoder, for example.

  The operation of the recording / playback apparatus configured as described above will be described with reference to the drawings.

  FIG. 5 is a flowchart of the operation, and FIG. 6 is a time chart.

  First, channel information and a commercial skip recording instruction are input to the recording / playback control unit 15 via the input unit 17 by the user (Step 100).

  When there is no detection signal from the event message detection unit 14, the recording / playback control unit 15 stores the input video / audio data in the hard disk 16 for recording (Step 101).

  The event message detection unit 14 monitors an event message for content switching of data broadcasting (Step 102). When an event message for content switching at the start of a commercial is detected (Step 103), the event message is detected. The detected signal is output to the recording / playback control unit 15 (Step 104).

  When the recording / playback control unit 15 receives the detection signal of the event message for content switching from the event message detection unit 14 (Step 105), the video / audio data to be input to the hard disk 16 is input as shown in FIG. Storage is stopped and recording is stopped (Step 106).

  On the other hand, the event message detection unit 14 continues to monitor the event message for switching the content of the data broadcast (Step 102). When the event message for switching the content at the end of the commercial is detected (Step 103), the event message is detected. A detection signal indicating this is output to the recording / playback control unit 15 (Step 104).

  When the recording / playback control unit 15 receives an event message detection signal for content switching at the end of the commercial from the event message detection unit 14 (Step 105), as shown in FIG. Storage in the hard disk 16 is resumed and recording starts (Step 101).

  By operating in this way, the recorded mainline video / audio is a commercial skipped (cut), and the commercial skipped (cut) video / audio can be played back by digital broadcasting. Even in the case of recording by, specific video such as commercials can be skipped and recorded as in analog broadcasting.

  Also, the data format to be recorded may be digital data (TS) recorded as it is, or may be recorded after being converted to another format.

  In the first embodiment described above, the event message for switching the content of the data broadcast has been described as an example of the event message to be used. However, the same effect can be obtained by using the event message for directly controlling the recording. When using an event message that directly controls recording, the event message detection unit 14 is configured to detect an event message for recording control, and the recording / playback control unit 15 decodes the detected event message to record the event message. The system is configured to control the stop and start.

  Details will be described below.

  The event message detection unit 14 detects an event message for recording control. The event message includes an ES (Elementary Stream) that transmits the event message, and is a PID (Packet Identifier) or a component tag value. Event messages can be taken out by filtering. Then, it is possible to extract only the necessary recording control event message from the message ID, message version, and the like.

For example, if the PID value or component tag value transmitting the event message is PID value: 0x0200 or component tag value 0x51, and the event message for recording control is event message ID: 200, a certain TS ( Transport
(Stream) Filter by PID value: 0x0200 or component tag value 0x51, and retrieve the event message. Then, an event message with an event message ID of 200 is detected and an event message for recording control is taken out.

  In this way, an event message for recording control is detected.

Further, the control of the recording / playback control unit 15 is a timing indicating the CM switching timing described in the private data byte (PDB) area in the event message section after the filtering of the PID value and the message ID. Information, absolute time (11:30:00, etc.), PCR (Program
Control is performed by determining the timing and operation based on the information describing the Clock Reference) value or NPT (Normal Play time) value (0x01FEA) and the time from the start of the program.

  For example, in the private data byte (PDB) area in the event message section, the recording start and recording stop control data and the absolute time at which the control starts are described. That is, if “Rec_stop_113030” is included in the PDB, the commercial starts from 11:30:30, which means that the main line recording is stopped at 11:30:30, and the recording / playback control unit 15 It is controlled to stop the main line recording at 30 minutes 30 seconds. Further, if “Rec_start_113100” is present in the PDB, it means that the commercial is ended at 11:31:00 and that the main line recording is restarted from 11:31:00. Control to resume main line recording from 00 seconds.

  A flowchart of such an operation is shown in FIG.

  First, an event message for recording control is detected from the PID value transmitting the event message (Step 200). In FIG. 7, according to the above example, the event message ID of 200 is detected (Step 201).

  Next, the value of the PDB data of the detected event message is detected (Step 202). If the PDB data is “Rec_stop_” (Step 203), the control time described in the 10th to 15th bytes is detected (Step 204), and the recording is stopped when that time is reached (Step 205). On the other hand, if the data of the PDB is “Rec_start_” (Step 206), the control time described from 11 bytes to 16 bytes is detected (Step 207), and the recording is resumed when that time is reached (Step 208). ).

  In this way, recording of a specific scene is controlled by an event message for recording control.

  In addition, although the absolute time has been described as an example of the control time, it may be an NPT value. For example, an NPT value such as “0x01FEA” may be described instead of the absolute time of the PDB, and recording may be controlled when the NPT value becomes “0x01FEA”.

  Similarly, it may be directly controlled by the PCR value.

  The recording / reproducing apparatus of Example 3 concerning this invention is demonstrated.

  In the recording / playback apparatuses of the first and second embodiments, the event message of the data broadcast is used for detecting a specific scene such as a commercial, and the specific scene is skipped for recording.

  In the third embodiment, a data broadcast event message is used for detecting a specific scene such as a commercial, and the in and out points of the specific scene are recorded as metadata at the time of recording. And it is characterized by using the metadata during playback and skipping a specific scene.

  In order to achieve the above characteristics, as shown in FIG. 8, the recording / playback apparatus of the third embodiment has a metadata generation unit 20 in addition to the configuration of the first embodiment. Furthermore, the recording / playback control unit 15 is configured to perform playback while skipping a specific scene based on the metadata generated by the metadata generation unit 20.

  Hereinafter, the configuration will be described in detail.

  The recording / playback control unit 15 records the video / audio data while recording the video / audio data position or time information when recording the main line program. This position or time information may be a time code of video data or a frame number.

  When receiving an event message for switching data broadcasting commercials from the event message detection unit 14, the metadata generation unit 20 generates, for example, the position and time information of the commercial in and out points corresponding to the reception time. This position or time information is the time code and frame number described above. These pieces of information are stored in the hard disk 16 together with video / audio data of the program as metadata together with identification information (for example, channel information) of the recorded program.

  FIG. 9 shows an example of metadata. In this metadata, the channel information is A channel, the broadcast start time is 10:00: 00, the commercial in point is 10:30: 00, and the out point is 10: 33:00.

  On the other hand, when the recorded program is played back, the recording / playback control unit 15 reads out the metadata and controls playback based on the position or time information of the commercial in and out points described in the metadata. For example, in the metadata shown in FIG. 9, after the reproduction is started, video / audio between 10:30:30 and 10:33:00 is skipped.

  In this way, skip playback of a specific scene can be realized by using the event message as metadata.

  In the above-described embodiment, the time code information is used as the metadata. However, the present invention is not limited to this. For example, the metadata is generated by adding the identification information to the video of the in point and the out point, and is reproduced at the time of reproduction. It may be configured to skip and play between the videos with the identification information.

  In addition, metadata is generated by attaching identification information to all the video between the In point and the Out point, and it is configured to skip and play back all the video with the identification information during playback. Also good.

  Furthermore, as an event message, an event message for switching data broadcasting contents is used. However, as described in the second embodiment, metadata may be generated using an event message for recording control.

  Embodiment 4 of the present invention will be described.

  In the fourth embodiment, unlike the first, second, and third embodiments described above, the event message is not detected when recording the video / audio of the main line, and all the video / audio and the event message are once recorded. . An event message is detected from those recorded at the time of reproduction, and a specific scene is skipped.

  In order to achieve such characteristics, in the fourth embodiment, as shown in FIG. 10, all video / audio and event messages are configured to be recorded on the hard disk 16 via the recording / playback control unit 15. ing.

  In addition, an event message detection unit 14 is provided between the recording / playback control unit 15 and the hard disk 16 so that an event message is detected when data is read during playback. Then, based on the detected event message, the recording / playback control unit 15 specifies an In point and an Out point of a specific scene, and is configured to skip-play that specific scene.

  Even with such a configuration, skip reproduction of a specific scene can be realized as in the above-described embodiment.

  In the fourth embodiment, metadata similar to that in the second embodiment may be created during playback, and skip playback may be performed using the created metadata for the second and subsequent playbacks.

  A fifth embodiment of the present invention will be described.

  In the first to fourth embodiments described above, a specific scene of a video / audio scene, for example, a commercial is skipped and reproduced. This is because the in and out points of the specific scene can be detected, and the detection of the in and out points of the specific scene can be applied to other purposes. Therefore, the fifth embodiment is characterized in that another specific scene can be reproduced instead of the specific scene specified by the IN point and OUT point.

  FIG. 11 is a block diagram illustrating the configuration of the fifth embodiment.

  The configuration of the fifth embodiment is basically the same as that of the above-described embodiment, except that the content 30 for replacement of a specific scene to be skipped is stored in the hard disk 16. Further, the recording / playback control unit 15 identifies a specific scene to be replaced based on the main line program metadata generated by the metadata generation unit 20, and replaces the portion with the replacement content for playback. Composed.

  A specific operation will be described below. In the description, it is assumed that the replacement content 30 stores another commercial on the hard disk 16 at the same time as the skipped commercial.

  First, when receiving an event message for switching data broadcasting commercials from the event message detection unit 14, the metadata generation unit 20 generates, for example, the position or time information of the commercial in and out points corresponding to the reception time. To do. This position or time information is the time code described above. These pieces of information are stored in the hard disk 16 together with video / audio data of the program as metadata together with identification information (for example, channel information) of the recorded program.

  Here, it is assumed that the generated metadata is the metadata shown in FIG. 9, and this metadata is stored in the hard disk 16.

  At the time of playback of the recorded program, the recording / playback control unit 15 reads the metadata, and based on the position or time information of the commercial in and out points described in the metadata, the time code of the video / audio data When 10:30:30, the replacement content 30 (other commercials) is read, and the replacement content 30 (other commercials) is reproduced instead of the skipped commercial. Then, when 3:00 elapses from the start of playback of the replacement content 30 (other commercials), the playback of the replacement content 30 (other commercials) is stopped by the counter inside the recording / playback control unit 15, and the main line side Playback starts from video / audio data with a time code of 10:33:00.

  By operating in this manner, the commercial at the time of program broadcast can be replaced with another commercial, for example, a commercial that is in close contact with the area where the viewer lives.

  Further, in the above description, the playback time of the replacement content 30 is the same as the playback time of the specific scene to be skipped. However, the present invention is not limited to this, and even if the playback time is short, it is long. There may be. This is because the program on the main line side has already been recorded, and the playback can be freely adjusted according to the playback time of the replacement content 30.

  As described above, the description of the embodiment of the present invention is finished. However, the event message detection unit 14, the recording / playback control unit 15, the meta described in the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment. The data generation unit 20 or the like may be configured with a CPU or the like that operates with a control program. The control program may be incorporated into the recording control apparatus from the beginning, or may be configured to be acquired and incorporated into the recording control apparatus by broadcasting at a later date.

  In the first, second, third, fourth, and fifth embodiments, the recording / playback apparatus has been described. However, the present invention is applicable to a receiving apparatus that does not have a recording function, such as a television. Is applicable. In this case, since there is no recording function, a display control unit having a display control function is provided instead of the recording / playback control unit 15, and the main line side video / audio data is displayed on the display control unit as in the above-described embodiment. Similarly, it may be configured to be controlled by an event message so that a specific scene is skipped or replaced with another scene.

  ADVANTAGE OF THE INVENTION According to this invention, the recording / reproducing apparatus which can skip and record and reproduce | regenerate the specific scene similar to analog broadcasting in digital broadcasting can be provided.

FIG. 1 is an example of a display screen at the time of drama broadcasting (on the main line side) in digital broadcasting.

FIG. 2 is an example of a display screen at the time of commercial video broadcasting (main line side) in digital broadcasting.

FIG. 3 is a time chart showing an example of the display shown in FIGS.

FIG. 4 is a diagram illustrating an example of a block diagram of the recording / playback apparatus according to the first embodiment.

FIG. 5 is a flowchart of the operation of the first embodiment.

FIG. 6 is a time chart of the first embodiment.

FIG. 7 is a flowchart of the second embodiment.

FIG. 8 is a block diagram illustrating an example of a recording / playback apparatus according to the third embodiment.

FIG. 9 is a diagram showing an example of metadata.

FIG. 10 is a diagram illustrating an example of a block diagram of a recording / playback apparatus according to the fourth embodiment.

FIG. 11 is a block diagram showing the configuration of the fifth embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tuner part 11 Demodulation part 12 TS decoding part 13 MPEG decoder 14 Event message detection part 15 Recording / playback control part 16 Hard disk 17 Input part 20 Metadata production | generation part

Claims (22)

A digital broadcast recording and playback device,
Event message detecting means for detecting an event message to be broadcast;
And a recording / reproducing control unit for controlling recording / reproducing of video / audio data on the main line based on the detected event message.   The recording / playback control means detects an in point or an out point of a specific scene of video / audio on the main line side based on the detected event message, skips the specific scene, and records the video / audio on the main line side. 2. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing apparatus is a means for recording or reproducing sound.   The recording / playback control means generates metadata on the main line side video / audio based on the detected event message, and plays back the recorded main line side video / audio based on the metadata. The recording / reproducing apparatus according to claim 1, wherein the recording / reproducing apparatus is a control unit.   The recording / playback control means detects an in point or an out point of a specific scene of video / audio on the main line side based on the detected event message, and reproduces other video / audio in place of the specific scene. 4. The recording / playback apparatus according to claim 1, wherein the recording / playback apparatus is a means. Recording means for recording event messages;
The recording / playback control means is means for controlling the playback of the recorded video / audio based on a recorded event message when the recorded video / audio is played back. The recording / reproducing apparatus according to claim 1.   6. The recording / reproducing apparatus according to claim 1, wherein the event message is an event message for switching contents broadcast by data broadcasting.   7. The recording / playback apparatus according to claim 1, wherein the event message is an event message for recording control. A digital broadcast receiver,
Event message detecting means for detecting an event message to be broadcast;
A receiving apparatus comprising: display control means for controlling display of video / audio on the main line side based on the detected event message.   The display control device detects, based on the detected event message, an in point or an out point of a video / audio specific scene on the main line side, and displays other video / audio in place of the specific scene The receiving apparatus according to claim 9, wherein:   The receiving apparatus according to claim 8 or 9, wherein the event message is an event message for switching contents broadcast by data broadcasting. A recording and playback control method for digital broadcasting,
Detecting a broadcast event message;
And a step of controlling recording or reproduction of video / audio data on the main line side based on the detected event message. A display control method for digital broadcasting,
Detecting an event message for detecting an event message to be broadcast;
A display control method for digital broadcasting, comprising: controlling video / audio display on the main line side based on the detected event message. A control program for a recording / playback device for digital broadcasting,
The control program records a recording / playback device,
Event message detecting means for detecting an event message to be broadcast;
A control program for a recording / reproducing apparatus, which functions as a recording / reproducing control means for controlling recording or reproduction of video / audio data on the main line based on the detected event message.   The control program detects the recording / playback control means based on the detected event message to detect an in point or an out point of a video / audio specific scene on the main line side, skips the specific scene, and 14. The recording / playback apparatus control program according to claim 13, wherein the control program functions as means for recording or playing back main-line video / audio.   The control program generates, on the basis of the detected event message, the recording / playback control unit, metadata about video / audio on the main line side, and video on the main line side being recorded based on the metadata. 15. The recording / playback apparatus control program according to claim 13 or 14, wherein the control program functions as means for controlling playback of audio.   The control program detects the recording / playback control means based on the detected event message to detect an in point or an out point of a video / audio specific scene on the main line side, and replaces the specific scene with another video. 16. The recording / playback apparatus control program according to claim 13, wherein the control program functions as a means for playing back sound. The control program causes the recording / playback apparatus to function as means for recording an event message,
Further, when the recorded video / audio is played back, the recording / playback control means functions as a means for controlling playback of the recorded video / audio based on the recorded event message. 17. The recording / reproducing apparatus control program according to claim 13, wherein the recording / reproducing apparatus has a control program.   18. The control program for a recording / reproducing apparatus according to claim 13, wherein the event message is an event message for switching contents broadcast by data broadcasting.   19. The recording / playback apparatus control program according to claim 13, wherein the event message is an event message for recording control. A control program for a receiving device that displays video / audio on the main line side of digital broadcasting,
The control program causes the receiving device to
Event message detecting means for detecting an event message to be broadcast;
A control program for a receiving apparatus, which functions as display control means for controlling display of video / audio on the main line side based on the detected event message.   The control program detects the in point or the out point of a specific scene of video / audio on the main line side based on the detected event message, and replaces the specific scene with another video / The control program for a receiving apparatus according to claim 20, wherein the control program functions as means for displaying voice. The control program for a receiving apparatus according to claim 20 or 21, wherein the event message is an event message for switching contents broadcast by data broadcasting.

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