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• Compile ffmpeg on Ubuntu 13.10 with libfdk_aac

  26 février 2014, par nitsuj

  I tried this guide, but I have an error that permission is denied when I try to run a script from PHP using exec(). I think that this is because ffmpeg is in /root.

  How can I install this where my PHP script can access it ?

• AWS ffmpeg-lambda-layer and concat protocol (Node.js)

  25 février 2021, par portik

  I am trying to concatenate two .mp3 files using ffmpeg lambda-layer. I have what I think is the correct command, but I struggle to represent it in code so that it is formatted correctly for the lambda layer. Here is a piece of code that I am struggling to get right :

  


  spawnSync(
  '/opt/ffmpeg/ffmpeg',
  [
    '-i',
    '"concat:/tmp/pt1.mp3|/tmp/pt2.mp3"',
    '-acodec',
    'copy',
    `/tmp/${fileName}`
  ],
  { stdio: 'inherit' }
)


  


  The error I'm getting : "concat:/tmp/pt1.mp3|/tmp/pt2.mp3": No such file or directory.

  


  I tried to list files in /tmp/ folder - both files listed in the input are there, not sure why lambda layer can't find them.

  


  Similar question : https://lists.ffmpeg.org/pipermail/ffmpeg-user/2019-December/046299.html. Ffmpeg concatenate protocol documentation : https://trac.ffmpeg.org/wiki/Concatenate#protocol.

  


  Thanks in advance !

  


• ffmpeg command to GStreamer pipeline for srtp stream

  1er avril 2021, par Muhammet Ilendemli

  I would like to convert this working ffmpeg command to a GStreamer pipeline but I couldn't manage to get it working. Tried using srtpenc toset the key to a hex representation of the buffer and udpsink with the target host and port set.

  



  The command I currently have :

  



  ffmpeg -re -i &lt;<rtspurl>> -map 0:0 -vcodec h264_omx -pix_fmt yuv420p \&#xA;  -r 30 -f rawvideo -tune zerolatency -vf scale=1280:720 -b:v 300k \&#xA;  -bufsize 300k -payload_type 99 -ssrc &lt;<ssrc>> \&#xA;  -f rtp -srtp_out_suite AES_CM_128_HMAC_SHA1_80 \&#xA;  -srtp_out_params &lt;<base64key>> srtp://&lt;<targetip>>:&lt;<targetport>>?rtcpport=&lt;<targetport>>&amp;localrtcpport=&lt;<targetport>>&amp;pkt_size=1378&#xA;</targetport></targetport></targetport></targetip></base64key></ssrc></rtspurl>

  



  Some references :

  



  


  • https://github.com/KhaosT/HAP-NodeJS/blob/master/src/lib/Camera.ts

  


  • https://github.com/KhaosT/HAP-NodeJS/wiki/IP-Camera#prepare-stream