For several years I've been using a PTZ camera (SUNBA) mounted on my chimney to capture a frame every 10 seconds during daytime hours from sunrise to sunset. It has resulted in some pretty spectacular timelapsed clips of morning clouds/fog:
Over the last few days, I tried to duplicate the same type of timelapse recording on another camera (Dahua). I've carefully compared all the settings under general, video, triggering, recording, etc so that they are identical in every way.
On the original SUNBA recordings, playback on the console or via UI3 results in smooth, 30FPS playback as one would expect (much in the same way the YouTube video above plays). However, on the new setup, the console and UI3 both play back in real time. That is, I get to watch the video play back with 1 frame advancing every 10 seconds. I can roughly simulate the same level of playback as the other camera by accelerating playback to 64x (or there abouts), but it's not nearly as smooth or practical.
Does anyone know why one camera would record in a way that replays at full 30FPS rate, but the other is playing back real-time? Am I missing a switch/setting?
FWIW, the original camera that works as it should is recording daytime video. The Dahua is capturing nighttime, at a much reduced shutter speed (1/3 shutter). The FPS reported by BI (using the %F variable on the overlay) on the Dahua is 3FPS, even though the FPS under the video tab under camera settings in BI is showing 30FPS (set automatically based on the camera's configured frame rate).
Also, I am using "continuous" recording with "alternate frame rate" set to every 10 seconds. I am not using the "periodic" recording feature.
Both cameras are using the same BVR file, re-encoding (not direct-to-disk) to the same profile 0 settings.
Over the last few days, I tried to duplicate the same type of timelapse recording on another camera (Dahua). I've carefully compared all the settings under general, video, triggering, recording, etc so that they are identical in every way.
On the original SUNBA recordings, playback on the console or via UI3 results in smooth, 30FPS playback as one would expect (much in the same way the YouTube video above plays). However, on the new setup, the console and UI3 both play back in real time. That is, I get to watch the video play back with 1 frame advancing every 10 seconds. I can roughly simulate the same level of playback as the other camera by accelerating playback to 64x (or there abouts), but it's not nearly as smooth or practical.
Does anyone know why one camera would record in a way that replays at full 30FPS rate, but the other is playing back real-time? Am I missing a switch/setting?
FWIW, the original camera that works as it should is recording daytime video. The Dahua is capturing nighttime, at a much reduced shutter speed (1/3 shutter). The FPS reported by BI (using the %F variable on the overlay) on the Dahua is 3FPS, even though the FPS under the video tab under camera settings in BI is showing 30FPS (set automatically based on the camera's configured frame rate).
Also, I am using "continuous" recording with "alternate frame rate" set to every 10 seconds. I am not using the "periodic" recording feature.
Both cameras are using the same BVR file, re-encoding (not direct-to-disk) to the same profile 0 settings.
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