Newest 'ffmpeg' Questions - Stack Overflow

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• Android concatenating images to video using FFMPEG. Using vanevery/Android-MJPEG-Video-Capture-FFMPEG

  4 mai 2014, par MarcinZiolek

  I'm using vanevery's code from github to join images into movie (JPEG to mp4). I've changed sample code and it is working. But now I want to move this feature to my app and I'm getting this error starting conversion:

  V/MJPEG_FFMPEG(27166): ***soinfo_link_image(linker.cpp:1607): missing essential tablesCANNOT LINK EXECUTABLE***
  

  I've copied all the files from assets:

  -assets
       --ffmpeg
       --libavcodec.so
       --libavcodec.so.52
       --libavcodec.so.52.99.1
       --libavcore.so
       --libavcore.so.0
       --libavcore.so.0.16.0
       --AND SO ON...
  

  Do I have to compile these files by my self, specific for my project? If yes, I know that there are lots of tutorials to make ffmpeg get working on Android but it is really complicated.

  Is there a simple method to get it work?

  I'm working in Eclipse.

• ffmpeg batch image generation with multiple images [on hold]

  4 mai 2014, par user3597867

  I'm currently generating images of a video every X seconds (in this case, 1 image every minute). I have a command line that works perfectly, but I would like to make it work on batches of videos as opposed to each video individually. Is this possible? I've used PHP scripts on a batch of videos to generate one image at X seconds, but I'd like more than one image per video.

  This is the command line that I use on individual videos:

  ffmpeg -i INPUT.mp4 -f image2 -vf fps=fps=1/60 -b:v 64k OUTPUT-%05d.jpg

• ffmpeg installation on windows 8 xampp v3.2.1 php 5.5.3

  4 mai 2014, par user3454835

  I am trying to install ffmpeg extension on windows 8 xampp v3.2.1 for php 5.5.3.

  I have files of ffmpeg and i am doing following steps

  1. Placing file php_ffmpeg.dll in xampp/php/ext/
  2. Rest files i am keeping in windows/system32
  3. I have added extension=php_ffmpeg.dll in php.ini
  4. Restarted xampp

  but when i see php_info then my extension ffmpeg still not enabled.

  I think ffmpeg files are not compatible to php 5.5.3. May be i have old files so will you please provide me new and correct ffmpeg files for php 5.5.3

  or do you know why i am facing this problem? any solution for this

• Creating video with multiple audios and one still image with ffmpeg [on hold]

  4 mai 2014, par user3601509

  Hi i want to create many videos with multiples audios and one single picture.

  For example i have song1.mp3, song2.mp3, song3.mp3 and one single picture. What i need to do is to create many videos and name that videos as: song1.mp4, song2.mp4, song3.mp4

  I want to create many videos at once. Because i have a huge amount of songs and i need a lot of videos with that songs, sorry for my english.

  I have this script for only one picture and one mp3, but i need to create bulk videos can you help me? ffmpeg -loop 1 -shortest -r 0.1 -i online.mp3 -i imagen.png -ab 128k output.avi

  Many thanks

• Pipe between two child processes in Node.js ?

  4 mai 2014, par Joey Morani

  I'm trying to capture video using FFmpeg with Node.js, and send it to a browser via websockets for playing using the MediaSource API. What I have so far works in Firefox but doesn't decode properly in Chrome. Apparently, from reading this question I need to use the sample_muxer program to ensure each 'cluster' starts with a keyframe.

  Here's the code I'm using:

  var ffmpeg = child_process.spawn("ffmpeg",[
      "-y",
      "-r", "30",
  
      "-f","dshow",           
      "-i","video=FFsource:audio=Stereo Mix (Realtek High Definition Audio)",
  
      "-vcodec", "libvpx",
      "-acodec", "libvorbis",
  
      "-threads", "0",
  
      "-b:v", "3300k",
      "-keyint_min", "150",
      "-g", "150",
  
      "-f", "webm",
  
      "-" // Output to STDOUT
  ]);
  
  ffmpeg.stdout.on('data', function(data) {
      //socket.send(data); // Just sending the FFmpeg clusters works with Firefox's 
                           // implementation of the MediaSource API. No joy with Chrome.
  
      // - - - This is the part that doesn't work - - -
      var muxer = child_process.spawn("sample_muxer",[
          "-i", data, // This isn't correct...
  
          "-o", "-" // Output to STDOUT
      ]);
  
      muxer.stdout.on('data', function(muxdata) {
          socket.send(muxdata); // Send the cluster
      });
  });
  
  ffmpeg.stderr.on('data', function (data) {
      console.log("" + data); // Output to console
  });
  

  Obviously I'm not piping it correctly and I'm unsure how I would while also including the arguments. Appreciate any help getting this working. Thanks!