Recherche avancée

Sur d’autres sites (8590)

• Why does my nginx endpoint streaming audio via ffmpeg fail with "An unexpected TLS packet was received"

  6 décembre 2020, par rajaman0

  I'm using nginx to proxy requests to a flask/gunicorn API. For most of my endpoints, it works perfectly - however, I have one endpoint which serves an audio response (through ffmpeg) which doesn't seem to work no matter what I try. Running everything through docker.

  


  Here's my nginx config :

  


  server {
  listen $PORT;
  root /usr/share/nginx/html;
  index index.html index.html;

  access_log /var/log/nginx/reverse-access.log;
  error_log /var/log/nginx/reverse-error.log;

  location / {
    try_files $uri /index.html =404;
  }

  location /api/stream_audio_file {
    proxy_pass          http://backend;
    proxy_http_version  1.1;
    proxy_set_header    Connection "keep-alive";
    proxy_set_header    Host $host;

    proxy_set_header    X-Real-IP $remote_addr;
    proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header    X-Forwarded-Host $server_name;
  }


  


  Here's the core of the python code for http://backend/api/stream_audio_file (run through flask, gunicorn)

  


  ffmpeg_options =  ['-i', 'https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3']
ffmpeg_options += ["-f", "mp3"]
ffmpeg_options += ["-to", '00:00:02.000']
ffmpeg_options += ["-vn"]
ffmpeg_options += ["-ab",  "256k"]
ffmpeg_options += ["-strict", "-2"]
ffmpeg_options += ["-loglevel", "trace"]
p = Popen(["ffmpeg"] + ffmpeg_options + ["-"],
                      stdout=PIPE)
max_bytes = 256000
output = p.stdout.read(max_bytes)
return Response(output, headers={
     "Content-Type": "audio/mp3",
     "icy-name": yt_info['title'].encode('latin-1', 'ignore'),
     "icy-bitrate": "256",
     "ice-audio-info": "bitrate=256",
     "Cache-Control": "no-cache"
})


  


  When I test out this endpoint, I've pasted the full ffmpeg logs here : https://pastebin.com/wMMpmL6M
Of import, it seems to fetch the mp3 url appropriately but fails with error :

  


  [tls @ 0x555bf3011a80] An unexpected TLS packet was received.
https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3: I/O error
[out_0_0 @ 0x555bf302ab00] EOF on sink link out_0_0:default.
No more output streams to write to, finishing.


  


  I've tried quite a few things :

  


  

  1. This endpoint works without nginx. I tried querying just the endpoint running w/ just gunicorn, and responses are streamed back correctly. Thus the error HAS to be nginx related ?

  


  2. The error being TLS related is confusing - I've tried setting up nginx w/ ssl on and adding certs, but that doesn't help / change the error in any way.

  


  3. I've tried playing around with headers in both nginx and on the python side, following some of the examples here : https://www.nginx.com/resources/wiki/start/topics/examples/x-accel/. Doesn't work.

  


  4. Response(stream_with_context(..) in flask doesn't work either.

  


  5. Don't know much about nginx, but tried some other suggestions e.g. buffering / no buffering through nginx, etc, nothing seems to work :(.

  


  6. When I ssh into my docker container, and run the same ffmpeg command ffmpeg -i https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3 -f mp3 -to 00:00:02.000 -vn -ab 256k -strict -2 -loglevel trace outside of the request context, it works !

  


  7. Tried compiling ffmpeg with both openssl and gnutls, neither works. However : the openssl version fails w/
tls @ error:1408F1BB:SSL routines:ssl3_get_record:bad record type instead.

  


  


  Please let me know what other debugging info would be helpful / if anyone has any hypothesis I can test out.

  


• lavf : add transpose_opencl filter

  28 novembre 2018, par Ruiling Song

  lavf : add transpose_opencl filter
  Signed-off-by : Ruiling Song <ruiling.song@intel.com>
  
  Signed-off-by : Mark Thompson <sw@jkqxz.net>
  

  • [DH] configure
  • [DH] libavfilter/Makefile
  • [DH] libavfilter/allfilters.c
  • [DH] libavfilter/opencl/transpose.cl
  • [DH] libavfilter/opencl_source.h
  • [DH] libavfilter/transpose.h
  • [DH] libavfilter/vf_transpose.c
  • [DH] libavfilter/vf_transpose_opencl.c

• Ffmpeg not working for larger size file in PHP

  29 juillet 2019, par MrinmoyMk

  I want to upload different audio formats files and compress and convert them into mp3 file using ffmpeg in php. I have already installed ffmpeg and is working fine for files below 0.9 mb. Whenever I try to submit files larger than 0.9 mb then the action is not completed. It may be there is some mistake in my VPS server configuration or mistake in my PHP codes. Could you please help me. My code is

  if (isset($_POST['submit'])) {
  
  
  
  $path = "song/"; //set your folder path
  
  $mp3_local=$_FILES['mp3_local']['name'];
  
  
  
  $tmp = $_FILES['mp3_local']['tmp_name'];
  
  
  
  
  
  exec("ffmpeg -i ".$tmp." -ab 96k ./out96/$mp3_local.mp3");}

  My php configuration is