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• compile ffmpeg for android [PAID]

  2 juin 2018, par Rafael Lima

  I’m 100% sure this is not the place for that and many people will downvote it but i’ve already posted this request in specific foruns and still no answer

  I’m willing to pay for someone able to compile ffmpeg for android

  I’ve been developing an app using ffmpeg binaries provided by an user on github, on the final phase of development i discover those binaries are not able to do some things i need because they were compiled without some specific flags

  I spent unsucessfully the last 20 days following tutorials about compile ffmpeg for android

  the flags i need are

  --enable-libfreetype \
  
  --enable-libfontconfig \
  
  --enable-zlib \
  
  --enable-libmp3lame \
  
  --enable-libopus \
  
  --enable-libx264 \ or --enable-openh264 \
  
  --enable-static \
  
  --enable-ffmpeg \
  
  --enable-librtmp \
  
  --enable-pic \
  
  --disable-doc \
  
  --disable-shared 

  if you think you able to do it please contact me at my e-mail ragpl07@gmail.com

• Java, Linux : 2nd call to ffmpeg via Runtime not getting executed

  21 février 2018, par We are Borg

  I am trying to convert video to gif. I am using ffmpeg and imagemagick to achieve this. The first step is successful where a mp4 is created, but the 2nd process is not getting called. If I run the command manually, then it all works fine, but not via code. What am I doing wrong ? Thank you.

  Error log :

  First path is ffmpeg -i /media/attachment/test/groupattach/200/5mpnkfiq4f635m2j663sb5dne -ss 05 -t 10 -c copy /media/attachment/test/groupattach/200/tsr8svjtvqa4alm5vls9v0pgc4.mp4
  
  Third path is ffmpeg -i /media/attachment/test/groupattach/200/tsr8svjtvqa4alm5vls9v0pgc4.mp4 -vf scale=320:-1 -r 10 -f image2pipe -vcodec ppm - | convert -loop 0 - /media/attachment/test/groupattach/200/f9b4cmkhhpm180sau7f7j7j1ai.gif
  
  java.io.FileNotFoundException: File '/media/attachment/test/groupattach/200/f9b4cmkhhpm180sau7f7j7j1ai.gif' does not exist
  
      at org.apache.commons.io.FileUtils.openInputStream(FileUtils.java:299)
  
      at org.apache.commons.io.FileUtils.readFileToByteArray(FileUtils.java:1763)
  
      at com.myproj.spring.service.GroupAttachmentsServiceImpl.createFilePreviewForFiles(GroupAttachmentsServiceImpl.java:4157)
  
      at com.myproj.spring.service.GroupAttachmentsServiceImpl.addAttachment(GroupAttachmentsServiceImpl.java:662)
  
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  
      at java.lang.reflect.Method.invoke(Method.java:498)

  Service layer where I get error :

  if (extension.toLowerCase().equals("mp4")) {
  
                      String videoPath = createPreviewForVideos(attachId, fileBytes, filesPath, fileName);
  
                      return FileUtils.readFileToByteArray(new File(videoPath));
  
  
  
                  }

  This happens because the 2nd part of code is not executed posted below.

  private String createPreviewForVideos(int attachId, byte[] fileBytes, String filePath, String fileName) {
  
          try {
  
              GroupAttachments groupAttachments = this.groupAttachmentsDAO.getAttachmenById(attachId);
  
              String gifLocation = msg + "groupattach/" + groupAttachments.getGroupId() + "/";
  
              String videoName = String.valueOf(new BigInteger(130, random).toString(32)) + ".mp4";
  
              String gifName = String.valueOf(new BigInteger(130, random).toString(32)) + ".gif";
  
              String firstpath = "ffmpeg -i " + filePath + " -ss 05 -t 10 -c copy " + gifLocation + videoName;
  
              System.out.println("First path is " + firstpath);
  
              Process process = Runtime.getRuntime().exec(firstpath);
  
              process.waitFor();
  
              process.destroy();
  
  
  
  
  
              String thirdPath = "ffmpeg -i " + gifLocation + videoName + " -vf scale=320:-1 -r 10 -f image2pipe -vcodec ppm - | convert -loop 0 - " + gifLocation + gifName;
  
              Process thirdProcess = Runtime.getRuntime().exec(thirdPath);
  
              thirdProcess.waitFor();
  
              thirdProcess.destroy();
  
              thirdProcess.destroyForcibly();
  
              if(thirdProcess.isAlive()){
  
                  thirdProcess.destroyForcibly();
  
              }
  
              // return gifLocation+gifName;
  
              return secondPhaseForVideos(attachId, fileBytes, filePath, fileName, videoName, gifName);
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
          return null;
  
      }
  
  
  
      private String secondPhaseForVideos(int attachId, byte[] fileBytes, String filePath, String fileName, String videoName, String gifName) {
  
          try {
  
              GroupAttachments groupAttachments = this.groupAttachmentsDAO.getAttachmenById(attachId);
  
              String gifLocation = msg + "groupattach/" + groupAttachments.getGroupId() + "/";
  
  
  
              String thirdPath = "ffmpeg -i " + gifLocation + videoName + " -vf scale=320:-1 -r 10 -f image2pipe -vcodec ppm - | convert -loop 0 - " + gifLocation + gifName;
  
              System.out.println("Third path is "+thirdPath);
  
              Process process = Runtime.getRuntime().exec(thirdPath);
  
              process.waitFor();
  
              process.destroy();
  
              groupAttachments.setFullSizePath(gifName);
  
              this.groupAttachmentsDAO.updateAttachment(groupAttachments);
  
              return gifLocation + gifName;
  
  
  
          } catch (Exception e) {
  
              e.printStackTrace();
  
          }
  
          return null;
  
      }

  2nd phase code never gets executed...the Runtime process. What am I doing wrong ? Thank you.

• How to configure ffmpeg for streaming videos from Red5 into Youtube using youtube-v3-api ?

  28 mai 2018, par Alfonso Valdes

  You’ll see my problem is next :

  Currently I’m working to configure youtube-v3-api for live streaming of .flv videos on my Youtube channel using Red 5 service as stated on next link https://www.red5pro.com/docs/server/ffmpegstreaming.html, this is using next commands for streaming on Linux :

  ffmpeg  -i rtmp://127.0.0.1:1935/live/streamname live=1 timeout=2 -vcodec libx264 -s 640x480 -vb 500k -acodec libfdk_aac -ab 128k  -f flv rtmp://a.rtmp.youtube.com/live2/{Stream name/key}
  
  
  
  
  
  ffmpeg -rtsp_transport tcp -i rtsp://127.0.0.1:8554/live/streamname -acodec copy -vcodec copy -f flv rtmp://a.rtmp.youtube.com/live2/{Stream name/key}

  On this, neither RMTP nor RTSP protocols are working for streaming. Also, I have tried several codecs for audio and video configuring different sizes for each one of them, but none of those have worked.

  The root streaming videos are generated by an IOS/Android app still on development phase.

  The problem comes when no video is displayed on Youtube screen, regardless the video is being sent by Red5 (I confirmed this on my Red5 dedicated server on AWS) and received correctly by Youtube (confirmed by validating on Console), so I have come into a dead end on which I hope you could help me get through.

  Any idea of what could be a possible solution ?

  Thank you.