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• Pydub unable to locte ffprobe

  22 décembre 2020, par Recessive

  First of all, here is the link to a similar question to this : Pydub (WindowsError : [Error 2] The system can not find the file specified)
Although in this one the problem is with ffmpeg, which I solved by setting the absolute path.

  



  After setting the absolute path for converter and/or ffmpeg with either :

  



  AudioSegment.converter = r'C:\ffmpeg\bin'

  



  or

  



  AudioSegment.ffmpeg = r'C:\ffmpeg\bin'

  



  I still get this error :

  



  


  C :\Program Files\Python36\lib\site-packages\pydub\utils.py:193 : RuntimeWarning : Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work
 warn("Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work", RuntimeWarning)
 Traceback (most recent call last) :
 File "C :/Users/Sean/Desktop/vp/encode_audio/m4a_to_wav.py", line 4, in 
 song = AudioSegment.from_file("pines.m4a", "m4a")
 File "C :\Program Files\Python36\lib\site-packages\pydub\audio_segment.py", line 660, in from_file
 info = mediainfo_json(orig_file)
 File "C :\Program Files\Python36\lib\site-packages\pydub\utils.py", line 263, in mediainfo_json
 res = Popen(command, stdin=stdin_parameter, stdout=PIPE, stderr=PIPE)
 File "C :\Program Files\Python36\lib\subprocess.py", line 707, in init
 restore_signals, start_new_session)
 File "C :\Program Files\Python36\lib\subprocess.py", line 990, in _execute_child
 startupinfo)
 FileNotFoundError : [WinError 2] The system cannot find the file specified`

  


  



  I have ffmpeg in my path envvar. I also have libav in my path envvar, and installed libav and then pydub in the order specified at https://github.com/jiaaro/pydub#dependencies.

  



  Nothing I'm doing appears to be working, so any ideas or solutions would be greatly appreciated !

  


• Pydub unable to locate ffprobe

  25 décembre 2022, par Recessive

  Here is the link to a similar question to this : Pydub (WindowsError : [Error 2] The system can not find the file specified)
Although in this one the problem is with ffmpeg, which I solved by setting the absolute path.

  


  After setting the absolute path for converter and/or ffmpeg with either :

  


  AudioSegment.converter = r'C:\ffmpeg\bin'

  


  or

  


  AudioSegment.ffmpeg = r'C:\ffmpeg\bin'

  


  I still get this error :

  


  


  C :\Program Files\Python36\lib\site-packages\pydub\utils.py:193 : RuntimeWarning : Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work
warn("Couldn't find ffprobe or avprobe - defaulting to ffprobe, but may not work", RuntimeWarning)
Traceback (most recent call last) :
File "C :/Users/Sean/Desktop/vp/encode_audio/m4a_to_wav.py", line 4, in 
song = AudioSegment.from_file("pines.m4a", "m4a")
File "C :\Program Files\Python36\lib\site-packages\pydub\audio_segment.py", line 660, in from_file
info = mediainfo_json(orig_file)
File "C :\Program Files\Python36\lib\site-packages\pydub\utils.py", line 263, in mediainfo_json
res = Popen(command, stdin=stdin_parameter, stdout=PIPE, stderr=PIPE)
File "C :\Program Files\Python36\lib\subprocess.py", line 707, in init
restore_signals, start_new_session)
File "C :\Program Files\Python36\lib\subprocess.py", line 990, in _execute_child
startupinfo)
FileNotFoundError : [WinError 2] The system cannot find the file specified`

  


  


  I have ffmpeg in my path envvar. I also have libav in my path envvar, and installed libav and then pydub in the order specified at https://github.com/jiaaro/pydub#dependencies.

  


  Nothing I'm doing appears to be working, so any ideas or solutions would be greatly appreciated !

  


• Using FFmpeg programmatically with a proxy

  2 mai 2013, par William Seemann

  I'm trying to use FFmpeg with a proxy. The following code works if I comment out :

  setenv("http_proxy", "http://172.0.0.1:3128/", 1);

  The proxy server is an instance of Squid. I know the proxy server is working because I can use the same URL with VLC without any issues. With the proxy specified, the output from my code is always :

  Proxy path: http://172.0.0.1:3128/
  
  Metadata could not be retrieved -5 // indicates an IO Error
  
  setDataSource failed, rc is: -1

  I compiled FFmpeg with everything enabled. Can someone explain why this code doesn't work with a proxy ?

  #include 
  
  #include 
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  #include <libavformat></libavformat>avformat.h>
  
  
  
  const int SUCCESS = 0;
  
  const int FAILURE = -1;
  
  
  
  typedef struct State {
  
      AVFormatContext *pFormatCtx;
  
      int             audio_stream;
  
      int             video_stream;
  
      AVStream        *audio_st;
  
      AVStream        *video_st;
  
  } State;
  
  
  
  int setDataSource(State** ps, const char* path) {
  
      State *state = *ps;
  
  
  
      if (state->pFormatCtx) {
  
          avformat_close_input(&amp;state->pFormatCtx);
  
      }
  
  
  
      int ret = 0;
  
  
  
      if ((ret = avformat_open_input(&amp;state->pFormatCtx, path, NULL, NULL)) != 0) {
  
          printf("Metadata could not be retrieved %d\n", ret);
  
          *ps = NULL;
  
          return FAILURE;
  
      }
  
  
  
      if (avformat_find_stream_info(state->pFormatCtx, NULL) &lt; 0) {
  
          printf("Metadata could not be retrieved\n");
  
          avformat_close_input(&amp;state->pFormatCtx);
  
          *ps = NULL;
  
          return FAILURE;
  
      }
  
  
  
      *ps = state;
  
      return SUCCESS;
  
  }
  
  
  
  const char* extractMetadata(State** ps, const char* key) {
  
      char* value = NULL;
  
  
  
      State *state = *ps;
  
  
  
      if (!state->pFormatCtx) {
  
          goto fail;
  
      }
  
  
  
      if (key) {
  
          if (av_dict_get(state->pFormatCtx->metadata, key, NULL, AV_DICT_IGNORE_SUFFIX)) {
  
              value = av_dict_get(state->pFormatCtx->metadata, key, NULL, AV_DICT_IGNORE_SUFFIX)->value;
  
          }
  
      }
  
  
  
      fail:
  
  
  
      return value;
  
  }
  
  
  
  int main(void) {
  
      setenv("http_proxy", "http://172.0.0.1:3128/", 1);
  
      unsetenv("no_proxy");
  
  
  
      const char *proxy_path = getenv("http_proxy");
  
  
  
      if (proxy_path) {
  
          printf("Proxy path: %s\n", proxy_path);
  
      } else {
  
          printf("No proxy specified\n");
  
      }
  
  
  
      av_register_all();
  
      avformat_network_init();
  
  
  
      State * state = av_mallocz(sizeof(State));
  
  
  
      int ret = setDataSource(&amp;state, "http://<some host="host">/song.mp3");
  
  
  
      if (ret == 0) {
  
          printf("setDataSource succedded!\n");
  
          printf("Artist: %s\n", extractMetadata(&amp;state, "artist"));
  
      } else {
  
          printf("setDataSource failed, rc is: %d\n", ret);
  
      }
  
  
  
      return EXIT_SUCCESS;
  
  }
  
  </some>