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• mp4Parser : How to create a video file with background audio from an mp3 file

  30 mai 2015, par Manu Antony

  I am trying create an android app which merges a video and audio file using mp4Parser. I succeeded when I merge two mp4 file into a single file that displays the video of the first one and plays the audio of the second file.

  But I couldn’t use an mp3 file as the audio source.

  The below code returns exception when I try to create Movie object with an mp3 file. The same code works fine with m4a and mp4 files.

  Movie audio;
  
      try {
  
          String audioFileName    =   Environment.getExternalStorageDirectory().toString()+"/music.mp3";
  
          audio = new MovieCreator().build(audioFileName);
  
      } catch (IOException e) {
  
          e.printStackTrace();
  
          return false;
  
      } catch (NullPointerException e) {
  
          e.printStackTrace();
  
          return false;
  
      }

  Is it possible to create Movie object from an mp3 file ?

  Anyone please help me on this

• 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 color range cropped to 15-235 in RGB

  20 décembre 2017, par Some1Else

  I have a series of BMPs (or PNG) images that I want to convert to XVID and MP5 movie formats.

  Encoding works but the resulting movie has a washed out color look to it and the blacks are somehow moved to RGB 16 and the brightest 255 values are moved down to 235. I want the output movie to use the same 0 to 255 colors as the source frames.

  Now there are all sorts of conflicting doco out there for FFMPEG so I am hopinbg someone has an example command line that does what I need. I have tried all sorts of pix_fmt flags but none of them get the output movie in the full color range.

  For XVID

  ffmpeg.exe -framerate 60 -i "D:\SRC%05d.BMP"  -c:v mpeg4 -vtag xvid -qscale 1 -y "D:\OUTPUT.AVI""

  For H265

  ffmpeg.exe -framerate 60 -i "D:\SRC%05d.BMP" -c:v libx265 -x265-params lossless=1 -s 3840x2160 -pix_fmt yuvj420p -an -y "D:\OUTPUT.MP4""

  The yuvj420p is supposed to give the full color range but ffmpeg complains "Incompatible pixel format ’yuvj420p’ for codec ’libx265’, auto-selecting format ’yuv420p’"

  So, are there any FFMPEG gurus out there that can give me the magic switches to get my output movies with black blacks and colors that maintain the original frame files 0-255 RGB values.