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• ffmpeg and Youtube upload - can't merge existing audio track with external one

  9 avril 2012, par Aleksy Goroszko

  I am realizing campaign, where idea is that users are creating TV ad. The process looks as following :

  • User watches ad (youtube video)
  • User selects video (mp4 file played in Flash Player)
  • User records his own voice using webcam/mic for the selected video
  • User's voice is uploaded to server
  • User's voice is merged with selected video (video+music) and saved as mp4 file
  • User's video is uploaded to youtube

  When realizing audio-video merging I found some suprises :

  When I was using command

  ffmpeg -i sourceVideoFile.mp4 -i sourceAudioFile.mp3 -acodec copy -vcodec copy outputFile.mp4 - video's music was replaced by user's voice.

  So I used option -newaudio :

  ffmpeg -i sourceVideoFile.mp4 -i sourceAudioFile.mp3 -acodec copy -vcodec copy outputFile.mp4 -newaudio - I can hear that output video has both music and user's voice. So - that's what I wanted to reach. But...

  The surprize is that if I upload this video to Youtube, after it's processing I can watch it and hear only music. User's voice disappears !

  So, how to keep both voice and music ?

  Any idea, gurus ? :)

• How to stream 24/7 on youtube (audio + video) with FFMPEG

  29 septembre 2023, par Carter510

  I plan to create a 24/7 stream with a video and a musical background which is located in a /Playlist folder.
I would like the music playlist to be played randomly and if a piece of music is corrupted or cannot be played, the program moves on to the next one.

  


  The problem is that with my command every time the music changes the stream stops.
Any suggestions ?

  


  #!/bin/bash

VBR="4500k"
FPS="30"
QUAL="superfast"

YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2"
KEY="XXXX-XXXX-XXXX-XXXX"

VIDEO_SOURCE="fireplace.mkv"
AUDIO_FOLDER="/home/administrateur/Documents/Youtube/Playlist"

while true; do
    # Joue la vidéo en boucle
    ffmpeg -re -stream_loop -1 -i "$VIDEO_SOURCE" \
    -thread_queue_size 512 -i "$(find "$AUDIO_FOLDER" -type f -name "*.mp3" | shuf -n 1)" \
    -map 0:v:0 -map 1:a:0 \
    -map_metadata:g 1:g \
    -vcodec libx264 -pix_fmt yuv420p -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v $VBR \
    -acodec libmp3lame -ar 44100 -threads 6 -qscale:v 3 -b:a 320000 -bufsize 512k \
    -f flv "$YOUTUBE_URL/$KEY"
done


  


  I would like the fireplace.mkv video to play without interruption, for the music to be chosen randomly without ever stopping. And if one of the songs cannot be played, it is skipped.

  


• Icecast to Youtube Live w/ Track Meta data

  22 novembre 2018, par eusid

  I am using ffmpeg to stream a still image along with my Icecast stream to youtube. I would like to give the artists credit by displaying their names on the image or perhaps even using a visualizer type thing.

  I am curious how people have solved this issue to get the meta data on the image, or even use a visualizer in the past. I want to do this headlessly from my server so I don’t have to run OBS or something on my desktop. I would hope to not have to reinvent the wheel, but if you could point me in the right direction I’ll build the wheel if asking for a completed wheel gets me down votes.

  How is this typically solved ? Mainly getting the text on the image and the stream updating with the new image. I could write something with pillow to do this perhaps. Not sure if it would work.