trellis | Trello clone / sample app for Automerge persistence library | Data Processing library

I have a video with some background music in it.

I wish to add a piece of spoken dialogue at a particular location in the video, such that the background music is lowered for the entire duration of the dialogue audio.

I found a similar solution using sidechaincompress, which just works for mp3. I made some changes to it so that it includes the video too (-map 0:v). However, now the audio is cut short as soon as the dialogue ends.

I'm trying to apply a custom python function on every frame of a video, and create the video with modified frames as output. My input video is a mkv file, with variable framerate, and I'd like to get the same thing as output, so one frame in the input matches one in the output at the exact same time.

I tried to use this example of ffmpeg-python. However, it seems that the timestamp info are lost in the pipes. The output video has 689 frames when the input only has 300 (the durations also aren't a match, with 27s vs 11s for the input).

I also tried to first process each frame in my video and save the transformed version as PNGs. Then I "masked" the input video with the processed frames. This seems to be better because the output video has the same 11s duration than the input, but the frame count doesn't match (313 vs 300).

Code for the python-ffmpeg solution:

I converted an avi file to a mp4 file with the following command, but the converted mp4 file produced no audio when played with QuickTime (no such problem with other players). I was able to convert mkv to mp4 with the same command without the audio problem.

• In the following json:

I kinda figured out, the problem needs to deal with apache mpm event... When I send my request on the first client, my script is getting executed linear. When I send my request from the second client, he is literally starting at that point in the code where the last request currently is. So that might be a problem with shared memory between those threads, but I'm not an apache professional, maybe somebody has an idea?
I used apache mpm prefork before, so every request is getting his own process and own memory etc., but there was a problem reading jpg files with that one and it worked after I changed apache to mpm event, see the following: https://github.com/python-pillow/Pillow/issues/5834#issue-comment-box

Inside my VM (running same apache version with mpm event) everything is working fine.

I've got a python script with flask running via wsgi on an apache2 webserver. Inside of that script I got following lines (458-461):

The lessR package can do some pretty nice things, and it makes donut plots simpler than any other package. How does one place two pie charts next to each other in a single plot? I know it can do a trellis for multi-panels, but in the example here that doesn't seem to be an option.

When the webhook fired, I could see in the other end, that the body of the request was empty. I then enabled WP_DEBUG, shot another API-call and checked the log-files ( WooCommerce >> Status >> Logs >> Log-file for the given day ), and could see that it indeed was empty. So it wasn't data 'falling off the truck' on the way to the destination.

I found where the shot was done in the code, and it looked like this:

After executing any ffmpeg command

Trying to run the following ffmpeg transcoding and get the error msg: [NULL @ 0x5578f5fc0580] Unable to find a suitable output format for '[out]' [out]: Invalid argument

ffmpeg -y -i /opt/bitnami/apache/htdocs/tmp/20211107100243-720aea3040844597987415efb09bcd48.mp4 -async 1 -metadata:s:v:0 start_time=0 -vcodec libx264 -acodec aac -b:v 2500k -refs 6 -coder 1 -sc_threshold 40 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k -level 3 -pix_fmt yuv420p -movflags +faststart -strict experimental -vf [in]scale=810:1080 [out] -pass 1 -passlogfile /tmp/ffmpeg-passes6187a59ddd1a06cghb/pass-6187a59ddd236 -f mp4 tmp/20211107100243-720aea3040844597987415efb09bcd48.mp4