JP4823084B2 - Video material transfer system and video material transfer method - Google Patents

Description

  The present invention relates to a video material transfer system and a video material transfer method for transferring a video material recorded on one video server to another video server.

  In a material transfer system including a plurality of video servers, when transferring material recorded on one video server to the other video server via a network, it is confirmed whether the transferred material is recorded without omission. Normally, this confirmation is performed by decoding and reproducing the material on both video servers after the material transfer, and confirming the image visually or by a dedicated comparison device. In particular, in the case of a long-term material such as a program, a worker is restrained for confirmation work or a dedicated full-scale device is required.

In addition, a technique has been proposed in which a transmission video is confirmed in advance by displaying a head video of a broadcast material as a still image during transmission standby (see, for example, Patent Document 1).
JP 2004-274568 A

  As described above, in the past, confirmation work after material transfer was performed visually or using a dedicated comparison device, which is troublesome, and if the material is long, workers are restrained or dedicated full-scale devices Was necessary.

  The present invention has been made paying attention to the above circumstances, and an object thereof is to provide a video material transfer system and a video material transfer method capable of confirming transfer of a video material in a short time without trouble. There is to do.

  In order to achieve the above object, a video material transfer system according to the present invention compresses video material, records it in a recording device, reads out, decompresses and sends out arbitrary video material from the recording device, and transmits it to each other via a transmission path. Connected to the first and second video servers, and first and second control devices for controlling recording and transmission of the first and second video servers, respectively, and the first video server Transfers the video material recorded according to the instruction of the first control device to the second video server, and the second video server records the transferred video material according to the instruction of the second control device. The first control device generates the first still image at a fixed frame interval based on the video material recorded in the first video server. Means, Transmission means for transmitting the first still image created by the first creation means to the second control device, wherein the second control device is a video recorded in the second video server. A second creation unit that creates a second still image of the same frame as the first still image created by the first creation unit based on the material, and the first control unit sends the second still image. Whether there is a difference between the receiving means for receiving the first still picture, the received first still picture, and the second still picture created by the second creating means Information indicating that there is an abnormality in the transfer of the video material when the determination unit determines that there is a difference between the first still image and the second Notification means for notifying the first video server and the second video server. The features.

  Also, the video material transfer method according to the present invention compresses the video material and records it in a recording device, reads out, decompresses and sends out any video material from the recording device, and is connected to each other via a transmission path. First and second video servers, and first and second control devices for controlling recording and transmission of the first and second video servers, respectively, and the first video server includes the first video server and the first video server. A video material transfer system for transferring video material recorded in accordance with an instruction from a control device to the second video server, wherein the second video server records the transferred video material in accordance with an instruction from the second control device. The first control device creates a first still image at a fixed frame interval based on the video material recorded in the first video server, and the created first still image The second picture The second control device creates a second still image of the same frame as the created first still image based on the video material recorded in the second video server. Then, the first still image sent from the first control device is received, and the received first still image is compared with the created second still image. Information indicating that there is an abnormality in transfer of the video material when it is determined in the determination that there is a difference between the first still image and the second Notification is made to the first video server and the second video server.

  In the video material transfer system and the video material transfer method having the above-described configuration, the first and second control devices record the video recorded in the first video server that is the transfer source of the video material and the second video server that is the transfer destination, respectively. Create still images at regular frame intervals based on the material. The second control device automates confirmation of the transferred video material by comparing still images created by the first and second control devices, respectively. In this way, it is possible to confirm the material transferred in a shorter time than when the material is reproduced and visually confirmed after the transfer.

  Therefore, according to the present invention, it is possible to provide a video material transfer system and a video material transfer method capable of confirming transfer of a video material in a short time without trouble.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a functional block diagram showing an embodiment of a material transfer system according to the present invention. This material transfer system includes a transfer source system 100 and a transfer destination system 200, and material is transferred from a video server 110 (eg, a material server) of the transfer source system 100 to a video server 210 (eg, a transmission server) of the transfer destination system 200. Transfer files. Since the configuration of the transfer destination system 200 is the same as that of the transfer source system 100, the description of the same part is omitted.

  The transfer source system 100 includes a video server 110 and a host control terminal 120. The video server 110 includes a central processing unit (CPU) 10 such as a microprocessor, and an encoder (ENC) 11, an input interface (input I / F) 12, and a material memory are connected to the CPU 10 via a bus. 13, a decoder (DEC) 14, and an output interface (output I / F) 15.

  When receiving a material recording instruction from the host control terminal 120 in the video server 110, the CPU 10 takes in the input baseband material and supplies it to the encoder 11. The encoder 11 performs a compression process on the supplied baseband material and records it in the material memory 13 as a material file. For example, MPEG-2 (Moving Picture Experts Group-phase 2) is used as the compression method. A material file that has already been compressed is input to the input I / F 12 by file transfer, and the CPU 10 records the input material file in the material memory 13. Further, when receiving a material reproduction instruction from the host control terminal 120, the CPU 10 reads out the material to be reproduced from the material memory 13, decompresses it by the decoder 14, and outputs it as a baseband material.

  On the other hand, when receiving a material transfer instruction from the host control terminal 120, the CPU 10 reads out a corresponding material file (for example, an A material file of high definition (HD)) from the material memory 13. The CPU 10 transfers the read A material file toward the transfer destination system 200. The transferred A material file is received by the video server 210 in the transfer destination system 200 and recorded in the material memory 23 as an A ′ material file, for example.

  The host control terminal 120 includes a CPU 16, a thumbnail memory 17, a communication interface (communication I / F) 18, and a capture board 19. When the material is recorded in the material memory 13 of the video server 110, the CPU 10 reads the recorded material, decompresses it by the decoder 14, and outputs it to the host control terminal 120. The expanded baseband material is captured by the capture board 19, and the CPU 16 captures still images from the capture board 19 at a fixed frame interval and stores them as thumbnails in the thumbnail memory 17. As this thumbnail, a non-compressed or compressed still image such as JPEG can be used.

  When the material is transferred from the transfer source system 100, the host control terminal 220 of the transfer destination system 200 creates thumbnails at the same frame intervals as the transfer source system 100 and stores them in the thumbnail memory 27. The host control terminal 220 acquires the thumbnail created by the transfer source system 100 and compares the acquired thumbnail with the thumbnail stored in the thumbnail memory 27 to detect a difference. The CPU 26 of the host control terminal 220 determines that the same material is detected if no difference is detected or is within a certain error range, and notifies the transfer source system 100 of the transfer result of the material.

Next, the operation of the material transfer system configured as described above will be described. FIG. 2 is a sequence diagram showing the procedure and contents of the material transfer process in the material transfer system shown in FIG.
In the transfer source system 100, the host control terminal 120 transmits a material transfer request to the video server 110 and designates a material file to be transferred (step S1a). In response to this designation, the video server 110 reads the material from the material memory 13 and completes preparation for transfer (step S1b). When receiving a transfer trigger from the host control terminal 120, the video server 110 starts a material transfer process (step S1c). The CPU 10 of the video server 110 performs material transfer processing using the output I / F 15 (step S1d). When the transfer of the material ends (step S1e), the CPU 10 notifies the host control terminal 120 of the transfer end.

  Upon receiving the transfer end notification from the video server 110, the upper control terminal 120 transfers the thumbnail of the material created at an interval of N frames to the upper control terminal 220 of the transfer destination system 200 via the communication I / F 18 (step S1f). ).

The host control terminal 120 determines whether or not a material transfer abnormality notification has been received from the host control terminal 220 (step S1g), and confirms the normal end or abnormal end of the transfer process.

The host control terminal 220 transmits a material recording request to the video server 210 and designates a recording file (step S2a). Upon receiving this designation, the video server 210 completes preparation for recording (step S2b). When receiving a transfer trigger from the host control terminal 220, the video server 210 starts a material recording process (step S2c). The CPU 20 of the video server 210 performs a recording process of the video material captured by the input I / F 22 (step S2d). At this time, the host control terminal 220 creates thumbnails at the same N frame intervals as the thumbnails created in the transfer source system 100 based on the video material recorded in the video server 210 (step S2e). That is, the video material recorded by the video server 210 is decompressed by the decoder 24 and taken into the capture board 29, and a thumbnail is created based on the same frame image as the thumbnail created by the transfer source system 100. To remember. When the host control terminal 220 detects the end of the recording process and the thumbnail creation process in the video server 210 (step S2f), it receives the thumbnail sent from the transfer source system 100 (step S2g).

Then, the CPU 26 of the host control terminal 220 compares the thumbnails sent from the transfer source system 100 with an N frame interval with the thumbnails stored in the thumbnail memory 27 for each frame (step S2h), and makes a difference between the two thumbnails. It is determined whether there is any (step S2i). If there is a difference in this determination, the host control terminal 120 of the transfer source system 100 is notified that there is an abnormality in the transfer of the material. The host control terminal 120 determines whether or not to end the thumbnail comparison process (step S2j). If the difference is not detected in all the frames and ends, information indicating that the transfer of the material has ended normally is displayed. The host control terminal 120 is notified.

  In the conventional example, the decoded output of the video server (A ′ material) of the transfer destination system is visually confirmed by an operator attached to the video monitor, or confirmed by a dedicated baseband comparison device (A material and A ′ material). Comparison). On the other hand, in the above-described embodiment, the transfer of the material is simply confirmed using the capture function provided in the host control terminals 19 and 29.

  As described above, according to the above embodiment, the host control terminal 120 of the transfer source system 100 and the host control terminal 220 of the transfer destination system 200 decode the video material recorded in the video server 110 and the video server 210, respectively. Capture and use the capture function to create still images (thumbnail) at regular frame intervals. The host control terminal 220 receives the thumbnails sent from the host control terminal 120 after the material transfer is completed, and compares the received thumbnails with the thumbnails stored in the thumbnail memory 27 for each frame. The material that has been transferred is confirmed by detecting. By doing in this way, it becomes possible to confirm the material transferred in a short time compared with the case where the material after transfer is reproduced and visually confirmed.

  Therefore, according to the above-described embodiment, it is possible to confirm transfer of a material in a short time without trouble. Furthermore, by creating an image with a reduced image size or a compressed image as a still image used for material transfer confirmation, the load on the host control terminal 220 for comparison is reduced, and the time is shortened. It becomes possible to confirm the transfer of the material.

  The present invention is not limited to the above embodiment. For example, in FIG. 1, the upper control terminal 120 is provided in the transfer source system 100 and the upper control terminal 220 is provided in the transfer destination system 200. However, the upper control terminal 120 and the upper control terminal 220 are independent of both systems. It is also possible to configure as a single device. In addition, the configuration and operation procedure of the material transfer system can be variously modified and implemented without departing from the gist of the present invention.

  In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a functional block diagram showing an embodiment of a material transfer system according to the present invention. The sequence diagram which shows the procedure of the material transfer process in the material transfer system shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Transfer source system, 200 ... Transfer destination system, 110, 210 ... Video server, 120, 220 ... Host control terminal, 10, 20 ... CPU, 11, 21 ... Encoder, 12, 22 ... Input interface, 13, 23 ... Material memory 14, 24 ... Decoder, 15, 25 ... Output interface, 16, 26 ... CPU, 17, 27 ... Thumbnail memory, 18, 28 ... Communication interface, 19, 29 ... Capture board.

Claims (4)

First and second video servers connected to each other via a transmission path, which compresses video material and records it in a recording device, reads out, decompresses and sends out any video material from the recording device, and the first video server And a first control device and a second control device for controlling recording and transmission of the second video server, respectively, and the first video server stores the video material recorded in accordance with an instruction from the first control device. Transferring to a second video server, wherein the second video server is a video material transfer system for recording the transferred video material according to an instruction of the second control device,
The first control device includes:
First creation means for creating a first still image at a fixed frame interval based on the video material recorded in the first video server;
Transmission means for transmitting the first still image created by the first creation means to the second control device;
The second control device includes:
Second creation means for creating a second still image of the same frame as the first still image created by the first creation means based on the video material recorded in the second video server;
Receiving means for receiving the first still image sent from the first control device;
A determining unit that compares the received first still image with the second still image created by the second creating unit to determine whether there is a difference;
When it is determined by the determination means that there is a difference between the first still image and the second, information indicating that there is an abnormality in the transfer of the video material is transmitted to the first video server and the second A material transfer system comprising: a notification unit configured to notify the video server of 2; The first creation means creates the first still image by reducing the image of the fixed frame interval of the video material recorded in the first video server to a predetermined image size,
The second creation means creates the second still image by reducing an image of the same frame as the first still image of the video material recorded in the second video server to the predetermined image size. The material transfer system according to claim 1, wherein: First and second video servers connected to each other via a transmission path, which compresses video material and records it in a recording device, reads out, decompresses and sends out any video material from the recording device, and the first video server And a first control device and a second control device for controlling recording and transmission of the second video server, respectively, and the first video server stores the video material recorded in accordance with an instruction from the first control device. Transferred to a second video server, and the second video server is used in a video material transfer system that records the transferred video material according to an instruction from the second control device,
The first control device includes:
Creating a first still image at a fixed frame interval based on the video material recorded in the first video server;
Transmitting the created first still image to the second control device;
The second control device includes:
Creating a second still image of the same frame as the created first still image based on the video material recorded in the second video server;
Receiving the first still image sent from the first control device;
Comparing the received first still image with the created second still image to determine whether there is a difference;
When it is determined that there is a difference between the first still image and the second in the determination, information indicating that there is an abnormality in the transfer of the video material is transmitted to the first video server and the second video server. A video material transfer method comprising: notifying a video server of Creating the first still image by reducing the image of the fixed frame interval of the video material recorded in the first video server to a predetermined image size;
The image of the same frame as the first still image of the video material recorded in the second video server is reduced to the predetermined image size to create the second still image. 3. The video material transfer method according to 3.

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