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# Custom message for Video Recorder Start Service
string video_name               # (string) video recorder name
string video_topic              # (string) video recorder subscriber topic
string local_dir                # (string) video local directory.
string video_format             # [Optional] (string) video format. Default is .mp4.
uint64 max_num_frames           # [Optional] (uint64) video recorder maximum number of frame. Default is infinite number of frames.
float64 fps                     # [Optional] (float64) video writer frame rate. Default is 15.0 frames per second.
uint64 fourcc                   # [Optional] (uint64) video writer 4-character code of codec. Default is cv2.VideoWriter_fourcc(*'avc1')
uint64 frame_width              # [Optional] (uint64) video writer width of the video frame. Default is 640 frame width.
uint64 frame_height             # [Optional] (uint64) video writer height of the video frame. Default is 480 frame height.
string s3_bucket                # [Optional] (string) s3 bucket to upload video file. Default value is empty string.
string s3_prefix                # [Optional] (string) s3 prefix to upload video file. Default value is empty string.
string s3_region                # [Optional] (string) s3 region to upload video file. Default value is empty string.
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bool success                    # (bool) return true if start service request completed successfully and false otherwise
string message                  # (string) extra message information regarding start service request