Recherche avancée

Sur d’autres sites (8963)

• RUN FFMPEG IN PYTHON

  7 janvier 2023, par SMART

  I have 1 video & 1 audio.

  


  video's duration : 4s

  


  audio's duration : 7.48 s

  


  i wrote python function to combine these files

  


  MY CODE :

  


   import subprocess as sp

    def runffmpeg(cmd):
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            ffmpeg_output, _ = pipe.communicate()
    
            print(ffmpeg_output)
            return (ffmpeg_output)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    
    def get_duration(fn):
        cmd = (
            f"ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
    
        cmd1 = (
            f"ffprobe -v error -of flat=s_ -select_streams 1 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            viddur, _ = pipe.communicate()
    
            print(viddur)
    
            pipe = sp.Popen(cmd1, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            auddur, _ = pipe.communicate()
    
            try:
                auddur = float(auddur.strip())
            except:
                auddur = 0
    
            print(auddur)
    
            # if (len(auddur) == 0):
            #     auddur = 0
    
            return float(viddur.strip()), (auddur)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    

def set_audio_to_video(vn, an, output):

    vdur, adur = get_duration(fn=vn)
    print(f" video duration is  {vdur}")

    auddur, adur = get_duration(fn=an)
    print(f" audio duration is  {auddur}")

   #cmd = (f" ffmpeg -i {vn} -i {an} -filter_complex \"[0:v]setpts=PTS*{auddur}/{vdur}     [v];atempo={auddur}/{vdur} [a]\" -map \"[v]\" -map 1:a -shortest -y {output}")

cmd = (
    f" ffmpeg -i {vn} -i {an} -filter_complex \"[0:v]setpts=PTS*{auddur}/{vdur} [v]\" -map \"[v]\" -map 1:a -shortest -pix_fmt yuv420p -y {output}")
print(cmd)

x = runffmpeg(cmd=cmd)


  


  to call the function :
set_audio_to_video(vn="cremovie.mp4", an="a1.wav", output="output.mp4")

  


  i'm getting error :

  


      Traceback (most recent call last):&#xA;      File "e:\MOVIEPY\FFMPEG-PYTHON.py", line 439, in <module>&#xA;    set_audio_to_video(vn="cremovie.mp4", an="a1.wav", output="output.mp4")&#xA;      File "e:\MOVIEPY\FFMPEG-PYTHON.py", line 424, in set_audio_to_video&#xA;    x = runffmpeg(cmd=cmd)&#xA;  File "e:\MOVIEPY\FFMPEG-PYTHON.py", line 399, in runffmpeg&#xA;    pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,&#xA;      File "C:\Python39\lib\subprocess.py", line 947, in __init__&#xA;    self._execute_child(args, executable, preexec_fn, close_fds,&#xA;      File "C:\Python39\lib\subprocess.py", line 1416, in _execute_child&#xA;    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,&#xA;    OSError: [WinError 87] The parameter is incorrect&#xA;</module>

  


  final command generated by function will look like :

  


  ffmpeg -i cremovie.mp4 -i a1.wav -filter_complex "[0:v]setpts=PTS*7.489116/4.0 [v]" -map "[v]" -map 1:a -shortest -pix_fmt yuv420p -y output.mp4


  


  i want to extend the video's duration to audio's duration ( video's duration increased to from 4s to 7.48 s)

  


  while running this ffmpeg command in command prompt (CMD) , its working , got no errors but in python , i'm getting errors.

  


  SYSTEM DETAILS :
WINDOWS 10 64 BITS
PYTHON 3.9 64 BITS

  


  WHAT TO DO ?

  


• Perl and ffmpeg script

  21 novembre 2016, par armight29

  The first part of my script that asks whether to check for cinavia doesn’t work. That is, if I type in ’y’ or ’Y’ it doesn’t proceed to the CNVIACHk function but goes instead to the MVIEPARAMs function.

  # GET FILE INPUT..
  
  
  
  print "Enter Filename..";
  
  my $MOVIe = <stdin>;
  
  
  
  print "Check For Cinavia? Enter y or n\n";
  
  my $CNVIAQUESt = <stdin>;
  
  
  
  if ( $CNVIAQUESt eq "y" || $CNVIAQUESt eq "Y" ) {
  
      CNVIACHk( $MOVIe );
  
  }
  
  else {
  
      MVIEPARAMs( $MOVIe );
  
  }
  
  
  
  
  
  sub MVIEPARAMs {
  
  
  
      system(
  
          "ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 $MOVIe"
  
      );
  
  
  
      print "Duration In Seconds..";
  
      $DURATIOn = <stdin>;
  
  
  
      system(
  
          'ffprobe -v error -of flat=s=_ -select_streams v:0 -show_entries stream=height,width "$MOVIe"'
  
      );
  
  
  
      print "Movie Width? ";
  
      $MOVIEWIDTh = <stdin>;
  
  
  
      print "Movie Height? ";
  
      $MOVIEHEIGHt = <stdin>;
  
  
  
      print "Enter Target Width.. ";
  
      $TARGETWIDTh = <stdin>;
  
  
  
      print "Enter Target Height.. ";
  
      $TARGETHEIGHt = <stdin>;
  
  
  
      system(
  
          'ffprobe -show_entries stream=index,codec_type:stream_tags=language -of compact "$MOVIe" -v 0 | grep eng'
  
      );
  
  
  
      print "Enter number of English Audio Track.. ";
  
      $ENGAUDTRk = <stdin>;
  
  
  
      print "English Audio Track Number Is ", $ENGAUDTRk, ".";
  
      $BTRTe = 31875072 / $DURATIOn;
  
  
  
      DETRMNEPAd;
  
  }
  
  
  
  
  
  sub DETRMNEPAd {
  
  
  
      if ( $MOVIEWIDTh &lt; $TARGETWIDTh ) {
  
          $X = $TARGETWIDTh - $MOVIEWIDTh / 2;
  
      }
  
      elsif ( $MOVIEHEIGHt &lt; $TARGETHEIGHt ) {
  
          $Y = $TARGETHEIGHt - $MOVIEHEIGHt / 2;
  
          $X = 0;
  
          print $Y;
  
      }
  
      else {
  
          print "Padding Not Needed Moving On...";
  
          CNVRTWOPAd();
  
      }
  
  
  
      CNVRTWPAd();
  
  }
  
  
  
  
  
  sub CNVIACHk {
  
  
  
      print "Checking Movie For Cinavia.. ";
  
      system( "cinde -i $MOVIe -q high -l" );
  
  
  
      print "Enter Track To Check.. ";
  
      $TRKTOCHEk = <stdin>;
  
  
  
      system( "cinde -i $MOVIe -q high -t $TRKTOCHEk" );
  
  
  
      print "Was Cinavia Detected?";
  
      $CNVIACHKANSr = <stdin>;
  
  
  
      if ( $CNVIACHKANSr eq "y" ) {
  
          exit;
  
      }
  
      else {
  
  
  
          print "Would You Like To Check Another Track?";
  
          $CHKANTHRTRk = <stdin>;
  
  
  
          if ( $CHKANTHRTRk eq "y" ) {
  
              CNVIACHk();
  
          }
  
          else {
  
              MVIEPARAMs();
  
          }
  
      }
  
  }
  
  
  
  
  
  sub CNVRTWOPAd {
  
  
  
      print "BEGINNING CONVERSION...\n";
  
  
  
      print "What Preset Would You Like To Use?";
  
      $PRESEt = <stdin>;
  
  
  
      system(
  
          "ffmpeg -i $MOVIe -map 0:0 -map 0:$ENGAUDTRk -c:v libx264 -b:v $BTRTe -preset $PRESEt -strict -2 -c:a ac3 -b:a 192k -threads 12 -pass 1 -f matroska dummy &amp;&amp; ",
  
          "ffmpeg -i $MOVIe -map 0:0 -map 0:$ENGAUDTRk -c:v libx264 -b:v $BTRTe -preset $PRESEt -strict -2 -c:a ac3 -b:a 192k -threads 12 -pass 2 -f matroska ENCODE1.mkv"
  
      );
  
  }
  
  
  
  
  
  sub CNVRTWPAd {
  
  
  
      print "BEGINNING CONVERSION...\n";
  
  
  
      print "What Preset Would You Like To Use?";
  
      my $PRESEt = <stdin>;
  
  
  
      system(
  
          "ffmpeg -i $MOVIe -map 0:0 -map 0:$ENGAUDTRk -c:v libx264 -b:v $BTRTe -preset $PRESEt -vf \"pad=$TARGETWIDTh:$TARGETHEIGHt:$X:$Y:black\" -strict -2 -c:a ac3 -b:a 192k ",
  
          " -threads 12 -pass 1 -f matroska dummy &amp;&amp; ffmpeg -i $MOVIe -map 0:0 -map 0:$ENDAUDTRk -c:v libx264 -b:v $BTRTe -preset $PRESEt -vf \"pad=$TARGETWIDTh:$TARGETHEIGHt:$X:$Y:black\"",
  
          " -strict -2 -c:a ac3 -b:a 192k -threads 12 -pass 2 -f matroska ENCODE1.mkv"
  
      );
  
  }
  
  </stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin></stdin>

• ffmpeg joinnig videos in php linux

  28 octobre 2013, par user2226181

  I am trying to add joining videos with no audio in ffmpeg php using linux operating system. My code is this :

  cat output_1.mp4 output_2.mp4 output_3.mp4 output_4.mp4 > final.mp4

  It is giving me an output of final.mp4 in result but there is a problem in the final.mp4 there is only first video which is output_1.mp4 in final video, the other videos are not being concatenate. Please help me in this case.

  Thanks