mjpeg | MJPEG streaming for Go | Video Utils library

Usually, when FFmpeg converts a video the result does not have a thumbnail on my computer, only showing the default blank 'mp4' thumb. I am trying to make a command line that will convert videos and also give the output a thumbnail. I've found a lot of examples of how to pull an image from a video, but not how to in-line make sure it has a thumbnail.

The main function I want is for any type of video to be converted to hevc_nvenc/aac/mov_text.

Currently, my command looks like this:

ffmpeg -i "pth_in.mp4" -i "pth_in.mp4" -movflags faststart -map 0:v:0 -map 1:v -c:v hevc_nvenc -preset slow -map 1:a? -c:a aac -b:a 128k -map 1:s? -c:s ssa -filter:v:0 thumbnail,scale=360:-1,trim=end_frame=1 -c:v:0 mjpeg -disposition:0 attached_pic "pth_out.mp4"

where the double input and -filter:v:0 thumbnail,scale=360:-1,trim=end_frame=1 -c:v:0 mjpeg -disposition:0 attached_pic is supposed to create the thumbnail. It DOES, however, as it stands this command will also cause the video's seek bar to malfunction, only working for about 3 seconds using MPC-HC and VLC, although the video will still play in its entirety.

Is there any way to do this in 'one' pass like I'm trying? Or do I have to split it up and do something else? Is there any other faux pas I'm making? Thanks for any help!

i have the following scenario that is driving me crazy:

i have a capture device. Here the ffprobe on it:

Im trying to build my android app on buildozer but i get this error. I think buildozer can't download or can't find the threading module I researched about the error but couldn't find the solution. Can anyone help me please?

I started the building with "buildozer android debug deploy run" code. I have done this before but it was more simple program.

Edit: I also got same error with "time" module.

I'm trying to make a conversion from an mp4 video to a jpeg frames with ffmpeg:

I am converting some old mjpeg videos (stored in .avi container) to h.265 (.mp4 container) but am noticing the colors are smearing. Using the terminal command:

ffmpeg -y -i "input-file.avi" -c:v libx265 -vtag hvc1 "output-file.mp4"

I get the following image (notice how the red and blue are stretched donward). There is a lot of motion in the scene, but the motion is mostly horizontal:

Any idea what might cause this? The detail and resolution seem fine, just the colors are being interpreted weirdly.

Full output:

Good day fellows. I am trying to add a text over an image using this ffmpeg command

When doing automated work with ffmpeg/ffprobe, I tend to just select the first stream of video and ignore the rest. Today I bumped into a file where the first video stream has no frames, but the second one does.

Is there a way to reliably know which stream should be selected? I suppose I could look at the number of frames, but I see things like "profile=Main" vs "profile=Baseline", or "level=-99" vs "level=40" and I wonder if those, or some different key, are better indicators.

I stream MJPEG from server and update QLabel's QPixmap every time a valid frame received. Memory usage swells in time and I cannot figure out why. Is this a wrong use of QPixmap?

I have been learning buffer overflows and i am trying to execute the following command through shellcode /bin/nc -e /bin/sh -nvlp 4455. Here is my assembly code: