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• Trouble requesting ffmpeg with pydub on Synology NAS

  9 mai 2019, par Marcus

  I have a Python script on my Synology which should make use of ffmpeg in combination with pydub. I installed ffmpeg via the community packages but when I run my script which runs smoothly on my local machine I get the shown error

  Already tried to define the absolute path of ffmpeg but didn´t work.

  /usr/lib/python2.7/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 "./track_append.py", line 30, in <module>
  
      artist_track = artist_track = AudioSegment.from_file(track_original)
  
    File "/usr/lib/python2.7/site-packages/pydub/audio_segment.py", line 665, in from_file
  
      info = mediainfo_json(orig_file)
  
    File "/usr/lib/python2.7/site-packages/pydub/utils.py", line 263, in mediainfo_json
  
      res = Popen(command, stdin=stdin_parameter, stdout=PIPE, stderr=PIPE)
  
    File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
  
      errread, errwrite)
  
    File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
  
      raise child_exception
  
  OSError: [Errno 2] No such file or directory
  
  </module>

• Ubuntu12.04 : libavformat header trouble when compiling C program

  30 mai 2013, par Juneyoung Oh

  My code is super simple, just include "avformat.h" and call "av_register_all".

  full code is below.

    1 #include 
  
    2 #include 
  
    3 #include 
  
    4 //#include <libavcodec></libavcodec>avcodec.h>
  
    5 #include <libavformat></libavformat>avformat.h>
  
    6 //#include "libavcodec/avcodec.h"
  
    7 //#include "libavformat/avformat.h"
  
    8 
  
    9 
  
   10 int main (int argc, char* argv[]){
  
   11         av_register_all();
  
   12 /*
  
   13         AVFormatContext* pFormatCtx;
  
   14         const char* filename = "/home/juneyoungoh/Videos/CON1234ID.ts";
  
   15 
  
   16         if(av_open_input_file(&amp;pFormatCtx, filename, NULL, 0, NULL) != 0)
  
   17         {
  
   18                 handle_error();
  
   19         }
  
   20 
  
   21         if(av_find_stream_info(pFormatCtx) &lt; 0)
  
   22         {
  
   23                 handle_error();
  
   24         }
  
   25 
  
   26         dump_format(pFormatCtx, 0, filename, 1);
  
   27 
  
   28         //av_get_audio_frame_duration();
  
   29 */
  
   30         return 0;
  
   31 }

  The problem is when I compile this in Terminal it show error.

  /tmp/ccvgpGjv.o: In function `main':
  
  getDuration.c:(.text+0x10): undefined reference to `av_register_all'
  
  collect2: ld returned 1 exit status

  my avformat.h file is in /usr/local/include/libavformat/avformat.h.

  Here is something I have already tried.

  1. gcc getDuration.c
  2. gcc -I/usr/local/include/ getDuration.c
  3. gcc -I/usr/local/include/libavformat/ getDuration.c
  4. gcc -L/usr/local/include/ getDuration.c
  5. gcc -L/usr/local/include/libavformat/ getDuration.c
  6. gcc getDuration.c -lavformat

  Give me the light of hope +_+

• Having trouble streaming video with FFmpeg over TCP on Windows [closed]

  8 mars 2024, par Tharunkumar Ampolu

  I'm trying to stream a video using FFmpeg over TCP on a Windows system. I'm using the following command

  


  ffmpeg -i video.mp4 -f mpegts tcp://192.168.24.3:2000?listen



  


  However, I encounter the following errors :

  


  Error opening output tcp ://192.168.24.3:2000 ?listen : Error number -10049 occurred
Error opening output file tcp ://192.168.24.3:2000 ?listen.
Error opening output files : Error number -10049 occurred

  


  I attempted to stream the video using the specified FFmpeg command.
I provided the command and the input file (video.mp4).
However, the command resulted in errors related to opening the output file for streaming.

  


  I expected the FFmpeg command to successfully stream the video over TCP to the specified address and port (192.168.24.3:2000).
I expected the command to run without errors and for the video stream to be accessible at the specified destination.