JP2008236329A - Video decoder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video decoder capable of setting an optical video as a screen to be displayed when a decoder stops, by a simple procedure. <P>SOLUTION: When a video decoding part 132 operates, still picture data of one optional frame among video signals of a plurality of frames obtained by the video image decoding part 132 is registered in a display screen storage memory 1341 of a still picture data generating part 134, and when the video decoding part 132 stops, the still picture data is read from the display screen storage memory 1341 and transmitted through a switcher 132. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a video decoding apparatus that is used in, for example, a broadcasting station and decodes a broadcast material TS (Transport Stream) into an original video signal.

  As is well known, in broadcasting stations, for example, broadcast materials TS such as television broadcasts and radio broadcast programs, CM (commercial), text and data programs are stored, and the broadcast material TS is played back at an arbitrary timing. A program / CM / video / audio file storage / transmission device (hereinafter referred to as a material storage / transmission device) is used.

  By the way, in the broadcasting station, the operator is required to confirm the broadcasting material TS stored in the material storage device. For this reason, a decoder for decoding the reproduced broadcasting material TS into the original video signal is used. It is done.

  However, the video displayed on the operator's terminal or the like when the decoder is stopped is set using RGB (Red Green Blue) values from the outside, and only simple color setting of the entire screen can be performed.

Conventionally, a method of stopping the decoder and instructing the source still image before the switching instruction when switching the source of moving image data is considered (for example, Patent Document 1).
JP-A-2005-277701.

  However, in the above method, the source still image before the switching instruction is displayed, and an arbitrary still image is not displayed.

  Accordingly, an object of the present invention is to provide a video decoding apparatus capable of setting an arbitrary video as a screen to be displayed when the decoder is stopped by a simple procedure.

  In order to achieve the above object, a video decoding apparatus according to the present invention is obtained by a decoder for decoding a broadcast material TS (Transport Stream) having a frame structure into a video signal, and the decoder when the decoder is operated. Still image data generation that includes a recording medium for storing still image data of an arbitrary frame among video signals of a plurality of frames and generates still image data stored in the recording medium when stop control is performed on the decoder And switching means for sending still image data instead of the output of the decoder when the decoder is stopped.

  According to this configuration, at the time of operation of the decoder, any one frame of still image data among a plurality of frames of video signals obtained by the decoder is recorded on the recording medium, and when the decoder is stopped, the recording is performed. Still image data is read from the medium and transmitted.

  Therefore, it is not necessary to transfer still image data from the external control device every time it is stopped, and the only processing that is performed externally is the stop control for the decoder, thereby displaying an arbitrary video when the decoder is stopped by a simple procedure. Can be set as a screen.

  As described above in detail, according to the present invention, it is possible to provide a video decoding apparatus capable of setting an arbitrary video as a screen to be displayed when the decoder is stopped by a simple procedure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of an intra-station system to which a video decoding apparatus according to an embodiment of the present invention is applied.

  In FIG. 1, reference numeral 11 denotes a storage device, which is composed of video and audio, and includes a plurality of broadcast materials TS constituting a data broadcast program such as a weather forecast, traffic information, and news in addition to a television broadcast program and CM. It is remembered. These broadcast materials TS are supplied to the TS separation unit 131 of the decoder 13 corresponding to the video decoding apparatus of the present invention under the control of the reproduction control unit 12, and are separated into video TS, audio TS, data TS, and the like here. .

  Of these, the video TS is supplied to the video decoding unit 132, decoded into the original video signal, and sent out via the switch 133. On the other hand, the voice TS, the data TS, and the like are transmitted via the switch 133.

  The reproduction control unit 12 reads out the corresponding broadcast material TS from the storage device 11 according to the reproduction control instruction information from the external program 14 and supplies it to the decoder 13.

  By the way, in this embodiment, a still image data generation unit that records in the display screen memory 134 one frame of still image data that is registered and designated from the outside among a plurality of frames of video signals obtained by the video decoding unit 132. 134 is provided. The still image data generation unit 134 reads out still image data from the display screen memory 134 and sends it through the switch 133 when the external program 14 receives stop control for the video decoding unit 132.

Next, the processing operation according to the above configuration will be described.
The still image data generation unit 134 writes a video signal of one arbitrary frame among the video signals of a plurality of frames decoded by the video decoding unit 132 to the display screen storage memory 1341, thereby obtaining a setting screen at the time of stop.

  The still image data obtained in this way is supplied to the switch 133. The switch 133 derives the video signal decoded by the video decoding unit 132 when the video decoding unit 132 is in operation, and derives still image data from the still image data generation unit 134 when the video decoding unit 132 is stopped.

  Specifically, with reference to FIG. 2, during operation, the switch 133 receives a plurality of frames of video signals as shown in FIG. The switcher 133 switches from the output of the video decoding unit 132 to the still image data from the still image data generating unit 134 when the external program 14 receives stop control of the video decoding unit 132.

  Thereby, the input of the switch 133 becomes as shown in FIG. 2B, and the video can be displayed when the video decoding unit 132 is stopped.

  As described above, in the above embodiment, when the video decoding unit 132 is in operation, any one frame of still image data among the plurality of frames of video signals obtained by the video decoding unit 132 is stored in the display screen of the still image data generating unit 134. The image data is registered in the memory 1341, and when the video decoding unit 132 is stopped, the still image data is read from the display screen storage memory 1341 and transmitted via the switch 133.

  Therefore, it is not necessary to transfer still image data from the external program 14 to the decoder 13 every time it is stopped. In the external program 14, only the stop control for the video decoding unit 132 needs to be executed. By executing it in the decoder 13, an arbitrary video can be set as a screen to be displayed when the decoder is stopped by a simple procedure.

  Further, when playback is started under the control of the external program 14, the switcher 133 can immediately switch to the video screen obtained by the video decoding unit 132.

  Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

1 is a block diagram showing a configuration of an in-station system to which a video decoding apparatus according to an embodiment of the present invention is applied. The figure shown in order to demonstrate switching operation | movement between a video signal and still image data in the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Memory | storage device, 12 ... Playback control part, 13 ... Decoder, 14 ... External program, 131 ... TS separation part, 132 ... Video decoding part, 133 ... Switch, 134 ... Still image data generation part, 1341 ... Display screen memory | storage memory.

Claims (2)

A decoder for decoding frame structure broadcast material TS (Transport Stream) into a video signal;
When the decoder is operated, a recording medium for storing still image data of any one frame among a plurality of frames of video signals obtained by the decoder is provided, and the recording is performed when the decoder receives stop control. Still image data generating means for generating still image data stored in the medium;
A video decoding apparatus comprising: switching means for transmitting the still image data instead of the output of the decoder when the decoder is stopped. 2. The video decoding apparatus according to claim 1, wherein the switching means switches from the still image data to the output of the decoder when receiving execution control for the decoder.

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