Page 1 of 1

[solved]Issue with Image Sequence monitor

Posted: Wed Mar 16, 2022 8:17 pm
by crispyjones
First let me make sure my usecase of the Image sequence monitor is correct. I dropped in .jpg files numbered 001.jpg to 039.jpg, set the framerate to 24. The workflow than hits a stock h264 encode node and then delivery. My expectation is that it will make a 24 fps animation from those jpg I put in the image sequence monitor folder.

What happens instead is that the workflow fails on 001.jpg with the error "Encoding: Option follow not found." I've tried an xdcam node and get the same error. Buried deep in the ffmpeg documentation I find this citation

Code: Select all

follow
If set to 1, the protocol will retry reading at the end of the file, allowing reading files that still are being written. In order for this to terminate, you either need to use the rw_timeout option, or use the interrupt callback (for API users).
So it is definitely a documented function and would seem to be the magic sauce to make the encode node buffer multiple images to make a video file.

Additionally the image sequence monitor seems to recurse subdirectories without asking, ie recurse box not checked.

As usual please let me know if I've missed something or misunderstood the purpose of this monitor.

Edit; running latest FFAStrans.exe 1.3.0.1

Re: Issue with Image Sequence monitor

Posted: Thu Mar 17, 2022 10:13 am
by admin
Hi crispyjones ,

You are of course 100% correct about both issues...they are bugs and will be corrected in the upcoming 1.3.0.2 release.
Thanks for reporting! :-)

-steinar

Re: Issue with Image Sequence monitor

Posted: Fri Mar 18, 2022 7:49 pm
by crispyjones
Thanks Steinar! 👍

Re: Issue with Image Sequence monitor

Posted: Tue May 17, 2022 3:11 am
by crispyjones
Image sequence monitor behaves as expected in 1.3.0.2. Solved!