Provided are an apparatus and method for verifying the integrity of a video file. The method includes receiving a video file and model information of a video recording device which is claimed to have recorded a verification-target video, extracting a header structure and a header value of the video file, extracting characteristic information according to the received model information of the video recording device from a characteristic database, and determining whether the extracted characteristic information according to the model information of the video recording device corresponds to the header structure and the header value of the video file.

Provided are an apparatus and method for verifying the integrity of a video file. The method includes receiving a video file and model information of a video recording device which is claimed to have recorded a verification-target video, extracting a header structure and a header value of the video file, extracting characteristic information according to the received model information of the video recording device from a characteristic database, and determining whether the extracted characteristic information according to the model information of the video recording device corresponds to the header structure and the header value of the video file.

A footage collecting/broadcasting device includes a procedure, the procedure including: cyclically overwriting and storing input footage data in a storage section; periodically transmitting an existence confirmation request to an external device; setting, as a first start time to start protection of the footage data that excludes the inputted footage data from an overwrite target, a point in time reached by backtracking by a set time in cases in which the existence confirmation response from the external device is not detected a specific number of times.

A footage collecting/broadcasting device includes a procedure, the procedure including: cyclically overwriting and storing input footage data in a storage section; periodically transmitting an existence confirmation request to an external device; setting, as a first start time to start protection of the footage data that excludes the inputted footage data from an overwrite target, a point in time reached by backtracking by a set time in cases in which the existence confirmation response from the external device is not detected a specific number of times.

Provided are an apparatus and method for verifying the integrity of a video file. The method includes receiving a video file and model information of a video recording device which is claimed to have recorded a verification-target video, extracting a header structure and a header value of the video file, extracting characteristic information according to the received model information of the video recording device from a characteristic database, and determining whether the extracted characteristic information according to the model information of the video recording device corresponds to the header structure and the header value of the video file.

Provided are an apparatus and method for verifying the integrity of a video file. The method includes receiving a video file and model information of a video recording device which is claimed to have recorded a verification-target video, extracting a header structure and a header value of the video file, extracting characteristic information according to the received model information of the video recording device from a characteristic database, and determining whether the extracted characteristic information according to the model information of the video recording device corresponds to the header structure and the header value of the video file.

The present invention provides a testing system for a video and audio reproduction system, the testing system comprising a data source, comprising video and audio data for reproduction by the video and audio reproduction system, the video and audio data comprising unique marks in every video frame and every audio frame, a recording unit, configured to record a video stream and an audio stream generated by the video and audio reproduction system based on the video and audio data, and a test processor, configured to extract the unique marks from the recorded video stream and the recorded audio stream, and to verify if respective unique marks of simultaneous video frames and audio frames have been recorded by the recording unit simultaneously. Furthermore, the present invention provides a testing method, a computer program product, and a non-transitory computer readable data carrier.

The present invention provides a testing system for a video and audio reproduction system, the testing system comprising a data source, comprising video and audio data for reproduction by the video and audio reproduction system, the video and audio data comprising unique marks in every video frame and every audio frame, a recording unit, configured to record a video stream and an audio stream generated by the video and audio reproduction system based on the video and audio data, and a test processor, configured to extract the unique marks from the recorded video stream and the recorded audio stream, and to verify if respective unique marks of simultaneous video frames and audio frames have been recorded by the recording unit simultaneously. Furthermore, the present invention provides a testing method, a computer program product, and a non-transitory computer readable data carrier.

The present invention relates to the technical field of video monitoring application, disclosed are a video image quality diagnostic system and method thereof. In the present invention, on the basis of a video monitoring system, the video image quality diagnostic system is incorporated into the video monitoring system as a dedicated diagnostic network, thus effectively reducing the bandwidth consumption of the video monitoring system and the connecting port consumption of a monitoring device. A polling host polls each video monitoring point via software to view a video image, acquires a code stream, and simultaneously transmits the same code stream to a video image quality diagnostic server for diagnosis via the dedicated diagnostic network; the transmission of the code stream does not occupy the bandwidth of the video monitoring network. While polling each video monitoring point to view the video image, the polling host takes a screenshot of the software interface, segments the screenshot image, and then transmits the image to the video image quality diagnostic server for diagnosis via the dedicated diagnosis network, thus further reducing the bandwidth consumption of the dedicated diagnostic network.

The present invention relates to the technical field of video monitoring application, disclosed are a video image quality diagnostic system and method thereof. In the present invention, on the basis of a video monitoring system, the video image quality diagnostic system is incorporated into the video monitoring system as a dedicated diagnostic network, thus effectively reducing the bandwidth consumption of the video monitoring system and the connecting port consumption of a monitoring device. A polling host polls each video monitoring point via software to view a video image, acquires a code stream, and simultaneously transmits the same code stream to a video image quality diagnostic server for diagnosis via the dedicated diagnostic network; the transmission of the code stream does not occupy the bandwidth of the video monitoring network. While polling each video monitoring point to view the video image, the polling host takes a screenshot of the software interface, segments the screenshot image, and then transmits the image to the video image quality diagnostic server for diagnosis via the dedicated diagnosis network, thus further reducing the bandwidth consumption of the dedicated diagnostic network.