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Where FFMPEG really shines is stabilising video. Unfortunately not all versions have "vidstab". ffmpeg -i "$1" -vf vidstabdetect=shakiness=5:show=1 dummy.avi

Where FFMPEG really shines is stabilising video. Unfortunately not all versions have "vidstab". ffmpeg -i "$1" -vf vidstabdetect=shakiness=5:show=1 dummy.avi ffmpeg -i "$1" -vf yadif, format=yuv420p, vidstabtransform=zoom=2:optzoom=0:crop=black -c:v libx264 -b:a 32k stabilized264.mp4 Yesterweek's shaky video shot from a kayak: https://youtu.be/4pM0VeH4NE0?si=H2qTJfcvis3QmFlj https://youtu.be/4pM0VeH4NE0?si=H2qTJfcvis3QmFlj

timonoko 2y ago
If you really wish to install all the available options, you can run: brew install homebrew-ffmpeg/ffmpeg/ffmpeg $(brew options homebrew-ffmpeg/ffmpeg/ffmpeg --compact)
dheera 2y ago
How about $ ffmpeg-english "capture video from the camera every 1 second and write it to jpg files" $ ffmpeg-english "take all of the images ending with .jpg in this directory and make a 30fps timelapse of it" Sound awesome? Here's the code for ffmpeg-english: #!/usr/bin/env python3 import openai import sys import os import time # Ensure you have set your OpenAI API key as an environment variable openai.api_key = os.getenv("OPENAI_API_KEY") client = openai.OpenAI() def get_ffmpeg_command(task_description): # Call the OpenAI API with the task description response = client.chat.completions.create( model="gpt-4", messages=[ {"role":"system", "content":"You are an expert in FFmpeg commands. Given the following English description of a task, you respond with the correct FFmpeg command. Do not include any other information in your response except for the command only."}, {"role":"user", "content":task_description}, ], max_tokens=150, temperature=0.5 ) command = response.choices[0].message.content.strip() return command def main(): if len(sys.argv) < 2: print("Usage: ffmpeg-english <task_description>", file=sys.stderr) sys.exit(1) task_description = " ".join(sys.argv[1:]) ffmpeg_command = get_ffmpeg_command(task_description) # some basic guardrails assert(ffmpeg_command.startswith("ffmpeg")) assert(";" not in ffmpeg_command) assert("|" not in ffmpeg_command) print(f"Executing command: {ffmpeg_command} in 2 seconds (^C to cancel)") time.sleep(2) os.system(ffmpeg_command) if __name__ == "__main__": main()
- tempaccount420 2y ago
  I love when my commands are not reproducible even in the same shell session.
- bilekas 2y ago
  Honestly, ffmpeg is awesome enough being able to do what it can with a one-liner.. And all without python dependency, or even internet access.
- deleted 2y ago
  [deleted]
neves 2y ago
I took some side photos of my pregnant wife, hoping to make a time-lapse, but I never got around to it. The photos aren’t perfectly aligned since her position changes a bit in each one. Can ffmpeg fix that?
- deleted 2y ago
  [deleted]
- timonoko 2y ago
  Yes. That is how you make lively picture show. Sometimes it tries to align unrelated objects, but that is just funny.
38 2y ago
Avi? What is this 2002?
- timonoko 2y ago
  Dummy.avi is useless map of perceived jerkiness.

timonoko 2y ago

If you really wish to install all the available options, you can run: brew install homebrew-ffmpeg/ffmpeg/ffmpeg $(brew options homebrew-ffmpeg/ffmpeg/ffmpeg --compact)

dheera 2y ago

How about $ ffmpeg-english "capture video from the camera every 1 second and write it to jpg files" $ ffmpeg-english "take all of the images ending with .jpg in this directory and make a 30fps timelapse of it" Sound awesome? Here's the code for ffmpeg-english: #!/usr/bin/env python3 import openai import sys import os import time # Ensure you have set your OpenAI API key as an environment variable openai.api_key = os.getenv("OPENAI_API_KEY") client = openai.OpenAI() def get_ffmpeg_command(task_description): # Call the OpenAI API with the task description response = client.chat.completions.create( model="gpt-4", messages=[ {"role":"system", "content":"You are an expert in FFmpeg commands. Given the following English description of a task, you respond with the correct FFmpeg command. Do not include any other information in your response except for the command only."}, {"role":"user", "content":task_description}, ], max_tokens=150, temperature=0.5 ) command = response.choices[0].message.content.strip() return command def main(): if len(sys.argv) < 2: print("Usage: ffmpeg-english <task_description>", file=sys.stderr) sys.exit(1) task_description = " ".join(sys.argv[1:]) ffmpeg_command = get_ffmpeg_command(task_description) # some basic guardrails assert(ffmpeg_command.startswith("ffmpeg")) assert(";" not in ffmpeg_command) assert("|" not in ffmpeg_command) print(f"Executing command: {ffmpeg_command} in 2 seconds (^C to cancel)") time.sleep(2) os.system(ffmpeg_command) if __name__ == "__main__": main()

tempaccount420 2y ago
I love when my commands are not reproducible even in the same shell session.
bilekas 2y ago
Honestly, ffmpeg is awesome enough being able to do what it can with a one-liner.. And all without python dependency, or even internet access.
deleted 2y ago
[deleted]

neves 2y ago

I took some side photos of my pregnant wife, hoping to make a time-lapse, but I never got around to it. The photos aren’t perfectly aligned since her position changes a bit in each one. Can ffmpeg fix that?

deleted 2y ago
[deleted]
timonoko 2y ago
Yes. That is how you make lively picture show. Sometimes it tries to align unrelated objects, but that is just funny.

38 2y ago

Avi? What is this 2002?

timonoko 2y ago
Dummy.avi is useless map of perceived jerkiness.