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• youtube-dl download best quality and then convert to mp4 and mp3

  31 mars 2017, par JoJota

  I’m trying to download the best audio and video formats of a video with youtube-dl in python. After the download has finished youtube-dl should convert the video to mp4 and the audio to mp3 with the best video and audio quality. The original video and audio files should then get removed after the conversion is done.

  Is it possible to do this with only one command or especially with a maximum of two downloads (best video and best audio) ?

• ffmpeg streaming to youtube

  8 novembre 2022, par SyndicatorBBB

  I've used the following command to stream mp4 file to youtube :

  


  ffmpeg -re -i merge.mp4 \&#xA;-c:v libx264 -preset veryfast -maxrate 3000k \&#xA;-bufsize 6000k -pix_fmt yuv420p -g 50 -c:a aac -b:a 160k -ac 2 \&#xA;-ar 44100 -f flv rtmp://a.rtmp.youtube.com/live2/<mykey>&#xA;</mykey>

  


  I see the ffmpeg streams the data like that :


  


  but yet the youtube streaming page shows nothing yet received :


  


  Any idea what am I missing ?

  


• Ffmpeg command not streaming to youtube [closed]

  21 avril, par Ahmed Seddik Bouchiba

  I'm trying to stream my desktop (from an X11 session) to YouTube Live using ffmpeg. I'm running this on a Linux machine with an active X server, and I set the DISPLAY variable accordingly (:0 in most cases).

  


  Here's the ffmpeg command I've tried :

  


  ffmpeg -loglevel info \
    -probesize ${PROBESIZE} -analyzeduration ${ANALYZE_DURATION} \
    -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} -draw_mouse 0 -i ${DISPLAY} \
    -f alsa -i default \
    -deinterlace -vcodec libx264 -pix_fmt yuv420p -preset fast \
    -r 30 -g 60 -b:v 2000k -bufsize 4000k \
    -acodec libmp3lame -ar 44100 -b:a 128k \
    -map 0:v:0 -map 1:a:0 -vsync 0 \
    -f flv "${RTMP_URL}" &


  


  Environment variables are set correctly (DISPLAY, VIDEO_SIZE, FRAME_RATE, etc.), and I replaced $RTMP_URL with the correct YouTube RTMP endpoint (e.g., rtmp ://a.rtmp.youtube.com/live2/). But nothing seems to work — the stream never starts or appears on YouTube, and sometimes I get timeout or "connection refused" errors.

  


  I've checked :

  


  That I'm logged into an active X session

  


  That I have access to the display (even tried xhost +)

  


  That ffmpeg has access to ALSA (sound seems okay)

  


  Questions :

  


  Am I missing something in my command ?

  


  Is there a better way to stream both screen and audio from an X server to YouTube Live ?

  


  Could this be a codec or YouTube-specific format issue ?

  


  Any help or working examples would be really appreciated. Thanks !