FFMPEG basic combine audio and video files no re-encoding command windows

copied from google ai 9-19-26

ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 output.mp4

Command Breakdown

-i video.mp4 & -i audio.wav: Defines your input files. The video file is designated as input 0 and the audio file as input 1.

-c:v copy: Copies the video stream directly without re-encoding it. This retains original quality and processes in seconds.

-c:a aac: Encodes the audio to AAC, which is the most compatible format for MP4 containers. (Note: If your audio is already an MP4-compatible format like .m4a or .aac, you can change this to -c:a copy to avoid audio re-encoding as well).

-map 0:v:0 -map 1:a:0: Explicitly tells FFmpeg to grab the first video stream from the first input file, and the first audio stream from the second input file. This ensures you don’t accidentally pull unwanted background tracks.

Common Variations & Use Cases

1. The Video Already Has Audio (Replace the Audio Track)If your original video file has an audio track you want to completely discard and replace with the new audio file, the map commands above will naturally do this by overriding the old stream. To force the output to cut off as soon as the shortest file ends (preventing a frozen frame or trailing silence), add the -shortest flag:

ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 -shortest output.mp4

2. Keep the Original Video Audio AND Mix in the New Audio

If you want to keep the original video’s audio (e.g., background noise) and mix it together with your new audio file (e.g., a voiceover), use the amix filter:

ffmpeg -i video.mp4 -i audio.wav -filter_complex “[0:a][1:a]amix=inputs=2:duration=longest” -c:v copy -c:a aac output.mp4

3. Pure Muxing (No Re-encoding at All)

If your video is an H.264/H.265 stream and your audio is already an AAC/MP3 stream, you can skip encoding altogether. This is the absolute fastest method:

ffmpeg -i video.mp4 -i audio.aac -c copy output.mp4

Resilio Sync PopOS – Ubuntu

Step-by-Step Installation

  • Add the official GPG key:
    wget -qO- https://linux-packages.resilio.com/resilio-sync/key.asc | sudo tee /etc/apt/trusted.gpg.d/resilio-sync.asc > /dev/null
  • Register the Resilio repository:
    echo "deb http://linux-packages.resilio.com/resilio-sync/deb resilio-sync non-free" | sudo tee /etc/apt/sources.list.d/resilio-sync.list
  • Update package lists and install:
    sudo apt update
    sudo apt install resilio-sync

Managing the Service

  • Start the service:
    sudo systemctl start resilio-sync
  • Enable auto-start on boot:
    sudo systemctl enable resilio-sync
  • Check service status:
    sudo systemctl status resilio-sync

Accessing the Interface

  • Open your web browser and navigate to http://localhost:8888 to complete the setup and manage your shared folders.

Folder Permissions

Fix Permissions via Terminal

  1. Open your terminal.
  2. Run the setfacl command to give the rslsync user full read, write, and execute permissions to your target folder (replace /home/your-username/sync-folder with your exact path):bashsudo setfacl -R -m "u:rslsync:rwx" /home/your-username/sync-folder Use code with caution.
  3. To apply these permissions automatically to any new files created inside that folder in the future, set the default ACL mask as well:bashsudo setfacl -d -m "u:rslsync:rwx" /home/your-username/sync-folder Use code with caution.

Alternative Options

  • Run as your current user: You can stop the system service and run Resilio Sync manually under your logged-in user account instead of the daemon user, though this requires launching it from your user session.
  • External Drives: If syncing to an external or secondary drive on Pop!_OS, make sure the drive is mounted with permissions your user and rslsync can access, or adjust ownership via Gnome Disks.

If you can share the exact path of the folder you are trying to sync (e.g., inside /home/ or on a secondary drive) and how Resilio is installed (system service or user app), I can give you the precise commands to fix it.

Using the Terminal

  • Open the folder in COSMIC Terminal by right-clicking inside the folder and choosing Open Terminal Here.
  • Change folder ownership using chown:bashsudo chown -R username:username /path/to/folder Use code with caution.
  • Grant read, write, and execute permissions using chmod:bashsudo chmod -R 0755 /path/to/folder Use code with caution.

If you tell me the username you want to give access to and the path to the folder, I can write the exact commands for you.


Fix Permissions on Linux

  • Run the ownership command: sudo chown -R rslsync:rslsync /path/to/your/folder
  • Run the permission command: sudo chmod -R 775 /path/to/your/folder
  • Add your active user to the sync group: sudo usermod -aG rslsync $USER
  • Restart the service: sudo systemctl restart resilio-sync (or rslsync)

drunken wisdom to the next generation

Rule 1: Don’t trust people trust balance sheets (and still be skeptical).

Rule 2: Anybody under 30 telling you how to invest on Youtube doesn’t know their ass from a hole in the ground.

Rule 3: Selling OTM options is better than buying OTM short dated calls or puts.

Rule 4: It is okay to go full blown regard and try to hit home run now and then with your hard earned winnings. You have to get paid to get laid but homeless dudes will see no action. Don’t get homeless.

Rule 5: You will understand the market in pure clarity after you are married for 20 years or more. At that point you will realize you never will understand your wife and you will never understand the market. This is where wisdom and judgment come in.. You diversify and hedge your bets because just like your wife, the market can stay irrational for a long time.

Rule 6: At some point you will die. No matter how much you gain or lose we will all get to zero breaths left (Breakeven).

Rule 7: There is a finite supply of belly button lint in the world. Just because it is finite does not make it valuable anymore than a finite supply of an imaginary coin.

Using google voicemail with at&t

AT&T Wireless customers

To turn on conditional call forwarding, enter the following 3 commands one at a time on your phone’s keypad, and wait for confirmation. After entering each command, tap Send or Call, hang up, and enter the next command. Replace 1234567890 with your Google Voice number.

  1. Call forward if unanswered: *61*1234567890#
  2. Call forward if unreachable: *62*1234567890#
  3. Call forward if busy: *67*1234567890#

The History of the Modern Single Woman

Women at 20: Hot Girl Summer/Don’t Talk to Me, Won’t Settle

Woman at 30: I’m Dating With a Purpose/I wanna Settle down

Woman At 40: Hey U/Where’s all The Good Men

Women at 50: I’m Going to Die Alone

Women at 60: Here Kitty Kitty

Women Last Words Before Death: I Blame Men!!!

5 Hard Facts For Girls and Women, by A Woman

  1. 1 week a month, you’ll be miserable. 25% of your life during your childbearing years will suck, and yes, some men will mock you for it (mostly in high school). It seems unfair to put up with it, but that’s life. It’s not fair. Buy a heating pad and suck it up. Quit bitching – women all know it sucks and men don’t want to hear it.
  2. Your hormones will wreck you. Accept that estrogen will mess with your decision making. Train yourself to stop and think before you react emotionally. Gather information before making a decision. Try not to consult a group of women about big problems or decisions, as they will likely advise you based on emotion and not what course of action is actually best.
  3. You are weaker, slower, with less endurance than men, and likely your brain is geared more toward communication and personal relationships than mathematics and complex theoretical physics. It’s not fair. When you realize how outclassed you are, you will probably be angry. That is normal, at first. Learn to accept it. It’s okay to be a woman. The TV lied to you. You’re never going to be an ass kicking girl boss, but you can be something far more: a happy, feminine woman. A wife and mother.
  4. Just because you are smaller, weaker, slower, and generally not as good at math than men, and you suffer menstruation, does NOT mean men have it easier than you. Men often have tougher jobs that wear diwn and break their bodies. They suffer diseases that don’t get a tenth of the recognition that “women’s” diseases like breast cancer get. They get drafted into wars, they lose custody of kids more, they get little to no appreciation for their efforts and they die sooner. You are not oppressed by men. Life sucks for EVERYBODY.
  5. You will never be more desirable than when you’re 18-25. After that, you’ll notice men barely flirt with you. After 30-35, you may never have a man flirt again. Your stock will decrease while a man’s stock increases. A woman’s value is based on her beauty and perceived fertility*. A man’s is based on his wealth and ability to support a family. Therefore, at 35, a man has reached peak desirability, while a woman is entering obscurity. This is the most brutal truth of all. Do not wait to settle down. Get a good husband as early as possible. Aim for marriage between 22-25. I did and I never regretted it.

*This is true for initial attraction leading into a more serious relationship. There are, of course, important personality traits, but no one cares how beautiful you are on the inside if they can’t get past your appearance.

A democracy cannot exist as a permanent form of government.

A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world’s greatest civilizations has been 200 years. These nations have progressed through this sequence: From bondage to spiritual faith; From spiritual faith to great courage; From courage to liberty; From liberty to abundance; From abundance to selfishness; From selfishness to apathy; From apathy to dependence; From dependence back into bondage.

? Alexander Fraser Tytler