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• Convert mp3 to aac stream for facebook video with ffmpeg

  17 août 2022, par Miro Barsocchi

  I want to start a live video in a Facebook page and I can do this using ffmpeg. The input is, as a video stream, a static image, suppose image.jpg and as audio a streaming content that currently is in mp3 format.
Due to facebook limitation, the audio format should be aac, so the idea is to convert the audio from mp3 to aac and send everything to facebook. What I'm using is this command

  


  ffmpeg -loop 1 -f image2 -i image.jpg -i https://some.streaming.service/mp3 -c:a libfdk_aac -pix_fmt yuv420p  -profile:v baseline  -bufsize 6000k  -maxrate 1500k  -vcodec libx264  -preset veryfast  -g 30  -r 30  -f flv  -flvflags no_duration_filesize  "rtmps://live-api-s.facebook.com:443/rtmp/FB-KEYTOSTREAM"


  


  where https://some.streaming.service/mp3 is a streaming in mp3 format. It "almost" work in the sense that it returns no error but I can not start streaming because, from facebook side, it seems that I'm not sending the stream : the "Start Live session" is not enabled

  


  

  


  If I stop ffmpeg, then for a second, the button is enabled and I can stream a few seconds of what I want. It seems that the error is related to the fact that there is no buffer of data that arrives, will be converted, and directly sent to the output. If, instead of a mp3 streaming audio, I use a mp3 file then no problem.

  


  I'm quite sure that ffmpeg can do this type of conversion, but can someone help me understand the flag(s) that I'm missing ?

  


  I've tried also with -re with no luck.

  


• Stream to Facebook Live using OpenCV

  23 mai 2022, par Lanzy Erin

  I am planning to stream a video file to Facebook Live but I want to programmatically edit its frames like adding texts depending. My problem is that I don't know how to properly send data to Facebook Live. I tried ffmpeg but it doesn't work.

  


  Here is my code that I tried

  


  import subprocess
import cv2

rtmp_url = "rtmps://live-api-s.facebook.com:443/rtmp/FB-1081417119476224-0-AbwwMK91tFTjFy2j"

path = "7.mp4"
cap = cv2.VideoCapture(path)

# gather video info to ffmpeg
fps = int(cap.get(cv2.CAP_PROP_FPS))
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))

# command and params for ffmpeg
command = ['ffmpeg',
           '-y',
           '-f', 'rawvideo',
           '-vcodec', 'rawvideo',
           '-pix_fmt', 'bgr24',
           '-s', f"{width}x{height}",
           '-r', str(fps),
           '-i', '-',
           '-c:v', 'libx264',
           '-pix_fmt', 'yuv420p',
           '-preset', 'ultrafast',
           '-f', 'flv',
           rtmp_url]

# using subprocess and pipe to fetch frame data
p = subprocess.Popen(command, stdin=subprocess.PIPE)

while cap.isOpened():
    ret, frame = cap.read()
    if not ret:
        print("frame read failed")
        break

    # YOUR CODE FOR PROCESSING FRAME HERE

    # write to pipe
    p.stdin.write(frame.tobytes())


  


• Streaming to facebook rtmps gives TLS connection error

  18 juin 2021, par jdramer

  I am trying to stream to Facebook with ffmpeg. As of late 2019 the connection requirement is rtmps. Using the stock Debian Buster ffmpeg the TLS connection fails.

  


  FFMPEG Version

  


  ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --prefix=/usr --extra-version='1~deb10u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared


  


  Stream command

  


  $ ffmpeg -i "rtmp://127.0.0.1/restream/STREAMKEY" -threads 1 -vcodec copy -acodec copy -f flv "rtmps://live-api-s.facebook.com:443/rtmp/FSTREAMKEY"


  


  Error

  


  [rtmps @ 0x55d9e0e3ea40] Cannot open connection tls://live-api-s.facebook.com:443
rtmps://live-api-s.facebook.com:443/rtmp/FSTREAMKEY: Resource temporarily unavailable


  


  Am I missing something ?