Movie might contain no motion when using short movie_max_time

[angrycoding]

Spotted some problem in motion when using movie_max_time set to 30 seconds and post_capture set to > 0. It's hard to explain but I'll try. If something is moving within first 30 seconds then everything goes okay, and motion records one video file for me. Everything works as expected if movement is happening within first 25 - 28 seconds. Problem starts when movement continues after 25 seconds and finishes somewhere in between 25 - 30 seconds. What I expect is to have one video file with duration = 25 - 30 seconds. But what actually happens is that motion records video with moving object, in which last 5 - 0 seconds does not contain any motion. And then right after that records another video fragment without any motion as well. Looks like when motion recording a fragment for post_capture rule - it does not take into account the fact that there is no motion anymore.

Scenario: post_capture set to 10 movie_max_time set to 10 Camera is spotted on some object.

10:00:00 Object starts to move 10:00:28 Object is not moving anymore

Expected: one video file with duration = 28 seconds Actual: two video files, first is 30 seconds second is 10 seconds and the second one is empty (nothing is moving)

[tosiara]

Can you try to enable "debug" videos and upload it together with the corresponding regular video sample?

[angrycoding]

Can you try to enable "debug" videos and upload it together with the corresponding regular video sample?

Yes I can do that, but there is no issue with motion detection. Issue is with how motion is cutting the video on fragments. The only problem is that there is no need to process post_capture thing, when there is no motion in it. I've tried to solve my problem by using "%D" conversion specifier, but either I don't understand how it works or it doesnt give me correct value. Because it's value passed to the script on_movie_end - looks completely random to me (for movies with motion it can give me 0 and some value > 0 in other time).

[angrycoding]

Regarding the videos. Look at this. First: https://www.youtube.com/watch?v=FYwGhlNO-oU Second: https://www.youtube.com/watch?v=NFpCBZfhlEg post_capture = 1 movie_max_time = 30 As you can see motion with the provided setup records two video fragments. But second one (and I believe that is because of post_capture) does not contain any moving objects.

[tosiara]

Could you please upload the originals of the videos to a file hosting rather than youtube?

[angrycoding]

Could you please upload the originals of the videos to a file hosting rather than youtube?

Sure. With motion: https://drive.google.com/file/d/1cOXIZpSzZLwlDCqtJpzrtcMqJI5KGAzi/view?usp=sharing Without motion: https://drive.google.com/file/d/1ylNdC38raghjYJgkwdzp-wSvZI9K_Ev8/view?usp=sharing

[tosiara]

Do you have "debug" videos corresponding to those samples?

[angrycoding]

Do you have "debug" videos corresponding to those samples?

No

[tosiara]

Since you did not provide neither debug videos, nor corresponding logs, I'm trying to guess, you are using pass through?

[angrycoding]

Since you did not provide neither debug videos, nor corresponding logs, I'm trying to guess, you are using pass through?

Exactly

[tosiara]

And what is your event_gap value?

[angrycoding]

And what is your event_gap value? Set to 12

[tosiara]

But how could you record 30 sec video while having movie_max_time set to 10?

I'd like to see full config, full detailed and debug videos with motion in order to investigate

[angrycoding]

But how could you record 30 sec video while having movie_max_time set to 10?

I'd like to see full config, full detailed and debug videos with motion in order to investigate

movie_max_time = 30

For the videos on google drive. I'll give you full config, but not debug. I can't catch it very often.

[tosiara]

Reopen if reproduced