Not replaying entire clip

[toddgibbs123]

Hi, Ive noticed that some of my cameras (i have 8 in total) will only replay a small portion of the recorded clip. For example, I have a camera on my front gate that is triggered if anyone enters. The camera triggers correctly and records around 10 seconds (as I expect) but when I watch the replay it will be much shorter. The screenshot below shows (noticedthe length of the clip is 9 seconds but the replay of it is 2 seconds).

Does anyone know why? Ive had it before and had to delete/add cameras to fix it but I can't get rid of it now
Thanks

Todd

Screen Shot 2020-01-12 at 09.03.04.jpg (216.39 KiB) Viewed 8654 times

[TimG]

Hi,

I've not come across this issue before, but can you show us an image of the record settings for this camera just in case you have missed something ?

I also note in the image that the status icon is red (the graph with the squiggle on it). Is it showing anything relevant in there ?

[toddgibbs123]

Hi Tim, thanks for the quick reply.

Images attached. Ive had it before and got rid of it somehow. Its only affecting one camera at the moment.

Screen Shot 2020-01-12 at 13.33.33.jpg (101.09 KiB) Viewed 8646 times

Screen Shot 2020-01-12 at 13.33.17.jpg (203.67 KiB) Viewed 8646 times

Screen Shot 2020-01-12 at 13.32.04.jpg (192.9 KiB) Viewed 8646 times

[toddgibbs123]

Screen Shot 2020-01-12 at 13.33.46.jpg (215.76 KiB) Viewed 8646 times

Thanks for any help

Todd.

[toddgibbs123]

Looking into this further - it appears most of my cameras are doing this.

Basicaly a camera is triggered and a video recorded. In the preview window i can clearly see an animal (cat, etc) that triggered it. But when I play the video it starts _after_the cat has disappeared and I notice the video is shorter than the preview says it should be.

Does anyone have any ideas?

Thanks
Todd.

[toddgibbs123]

Ok, I have tracked it down to the option "Direct-to-disc (H.264/5 IP or hardware encoders only)"

enabling this seems to affect how it replays the clips, reducing their length and missing the first 3-5 seconds.

Does anyone else have this issue ?

Todd.

[reddawg]

Ok, I have tracked it down to the option "Direct-to-disc (H.264/5 IP or hardware encoders only)"

enabling this seems to affect how it replays the clips, reducing their length and missing the first 3-5 seconds.

You need to match your IP camera's frame rate to its i-frame interval in each camera's UI, not in Blue Iris. If the cameras frame rate is set to 20 fps, then the i-frame interval should be set to 20.

The I-frame interval configures the number of partial frames (P-Frames & B-Frames) that occur between full frames (I-Frames) in the video stream. By default, many cameras will generate an I-Frame 2-3 times the frame rate. For example, if your cameras frame rate is 20 fps then the default the I-Frame interval would be between 40-60. This means it will generate a full picture frame (I-Frame) every 40 to 60 frames.

When using Direct-to-disk, Blue Iris will always start recording on the next i-frame and not partial frames. This would cause you to miss 2-3 seconds of every triggered motion event recorded. To avoid this, you should always match the I-Frame Interval to the Frame Rate in each cameras UI configuration, not in Blue Iris. In addition, you can set the "Pre-trigger video buffer" to 3 seconds. You can find this settings in Blue Iris camera settings properties -> record tab.

[hotbrass]

What if my camera Frame Interval will not set beyond 12? What Frame Interval do you recommend for 15fps?

[reddawg]

What if my camera Frame Interval will not set beyond 12? What Frame Interval do you recommend for 15fps?

Does your camera's I-frame interval refer to frames or seconds? If it reflects seconds, then I would set it to 1. Since we are talking 1 second and the camera's frame rate is 15 fps, then in effect the I-frame would also reflect 15 frames. If it refers to frames, then it makes no sense that it won't allow you to match the camera's frame rate of 15.

I would post the make and model of your IP camera and screenshot of the camera's configuration screen for Video.

[hotbrass]

What if my camera Frame Interval will not set beyond 12? What Frame Interval do you recommend for 15fps?

Does your camera's I-frame interval refer to frames or seconds? If it reflects seconds, then I would set it to 1. Since we are talking 1 second and the camera's frame rate is 15 fps, then in effect the I-frame would also reflect 15 frames. If it refers to frames, then it makes no sense that it won't allow you to match the camera's frame rate of 15.

I would post the make and model of your IP camera and screenshot of the camera's configuration screen for Video.

In the camera settings, it has FPS and I Frame Interval as the two fields. FPS can be any number, I Frame Interval is a drop down from 1 - 12. Camera is a FULUVA X-dfq650-4mp-poe x-series. Nothing in their instructions explains anything. The I Frame Interval default is 2.