Recherche avancée

Sur d’autres sites (11588)

• ffmpeg and upload issue

  29 juillet 2015, par sonam Sharma

  hello please look at the code

     <?php
  
     session_start();
  
   include "conn.php";
  
   $sid = $_SESSION['id'];
  
     $ipIP=$_SERVER['REMOTE_ADDR'];
  
     $uploaddir = "mem/$sid/video/";
  
  
  
      //Check the file is of correct format.  
  
      function checkfile($input){
  
      $ext = array('mpg', 'wma', 'mov', 'flv', 'mp4', 'avi', 'qt', 'wmv', 'rm', 'mkv', 'MP4');
  
     $extfile = substr($input['name'],-4); 
  
     $extfile = explode('.',$extfile);
  
     $good = array();
  
    @$extfile = $extfile[1];
  
     if(in_array($extfile, $ext)){
  
        $good['safe'] = true;
  
       $good['ext'] = $extfile;
  
  }else{
  
        $good['safe'] = false;
  
    }
  
       return $good;
  
   }
  
  
  
   // if the form was submitted process request if there is a file for uploading
  
  if(@$_FILES["profileimage99"]["size"] < 102400000000){
  
     //$live_dir is for videos after converted to flv
  
      $live_dir = "mem/$sid/video/";
  
    //$live_img is for the first frame thumbs.
  
      $live_img = "mem/$sid/img/";        
  
      $seed = rand(11111111111193,9999999999999929) * rand(3,9);
  
      $getEXT=substr(@$_FILES['profileimage99']['name'],-5);
  
      $upload = $seed.$getEXT;
  
      $uploadfile = $uploaddir .$upload;        
  
  
  
      $safe_file = checkfile(@$_FILES['profileimage99']);
  
      if($safe_file['safe'] == 1){
  
                  if (move_uploaded_file(@$_FILES['profileimage99']['tmp_name'], $uploadfile)) {
  
                  echo "Video uploaded.";
  
  
  
                  $base = basename($uploadfile, $safe_file['ext']);
  
                  $new_file = $base.'flv';
  
                  $new_image = $base.'jpg';
  
                  $new_image_path = $live_img.$new_image;
  
                  $new_flv = $live_dir.$new_file;
  
  
  
          require 'vendor/autoload.php';
  
          //ececute ffmpeg generate flv
  
          exec('ffmpeg -i '.$uploadfile.' -f flv -s 640x360 '.$new_flv.'');
  
          //execute ffmpeg and create thumb
  
          exec('ffmpeg  -i '.$uploadfile.' -f mjpeg -vframes 17 -s 426x240 -an '.$new_image_path.'');
  
          echo 'Thank You For Your Video!<br />';
  
  
  
      //create query to store video
  
      if(isset($_POST['title'])){$titlename=$_POST['title'];}else{$titlename='';}
  
      if(isset($_POST['desc'])){$desc=$_POST['desc'];}else{$desc='';}
  
      if(isset($_POST['catag'])){$catag=$_POST['catag'];}else{$catag='';}
  
      if(isset($_POST['channel'])){$channel=$_POST['channel'];}else{$channel='';}
  
      $dbentry_o=mysqli_query($conn,"insert into vids (uid,chid,ctid,vname,vdisc,duration,time,ip,src) values ('$sid','$channel','$catag','$titlename','$desc','00','00','$ipIP','$new_file')");
  
      echo "donr90909090";die;
  
           } else {
  
                  echo "Possible file upload attack!\n";
  
                  print_r($_FILES);
  
           }
  
  
  
      }else{
  
  
  
           echo 'Invalid File Type Please Try Again. You file must be of type 
  
           .mpg, .wma, .mov, .flv, .mp4, .avi, .qt, .wmv, .rm'.$_FILES['profileimage99']['name'];
  
  
  
      }
  
   }else{
  
   echo 'Please choose a video';die;
  
   }
  
   ?>

  i am uploading a video by this code and gets error when uploaded fileseze is more then 20 or 30 mb the error says undefined $profileimage99 (i am uploading the file by ajax)

  i want the page to convert the file to such formats so that all the major browser supports us and the conversation time is also not very much as it takes a considerable time to just do the following task
  the main time taken by the page is by the ffmpeg code

  also please tell me is it good to use exec code in php ????

  Things that i want

  1.convert the video to flv,swf (other format if any which is supported by browesers )
  2.reduce the conversation time
  3.is it good to use exec here in php code
  4. take the frame (convert a jpg file out of the video) after half time of the video (like if the video is of 4 hrs then get the frame which is just after 2hrs)

  Please send me any link or related code or explain me something about ffmpeg

• Merge commit '07a2b155949eb267cdfc7805f42c7b3375f9c7c5'

  21 octobre 2017, par James Almer

  Merge commit '07a2b155949eb267cdfc7805f42c7b3375f9c7c5'
  * commit '07a2b155949eb267cdfc7805f42c7b3375f9c7c5' :
  
    Bump major versions of all libraries
  A few API deprecated 2 years ago or more are also postponed here for
  
  varying reasons.
  FF_API_LOWRES :
  
  Since this functionality depends on AVStream->codec, i figure the two can
  
  be removed at the same time in the next bump or so.
  FF_API_AVCTX_TIMEBASE :
  
  Couldn't get this one to work. Not just libavcodec but apparently also
  
  libavformat and ffmpeg.c expect AVCodecContext->time_base to be set for
  
  decoding. Upon removal some tests report a different generic stream time
  
  base (like 1/25), and others lose packet duration values. I guess it's
  
  somehow tied to the AVStream->codec clusterfuck.
  
  It can be dealt with alongside FF_API_LAVF_AVCTX in the next bump.
  FF_API_OLD_FILTER_OPTS_ERROR :
  
  This one is meant to remain after FF_API_OLD_FILTER_OPTS is removed.
  
  Its purpose is displaying the corrected command line using the new syntax
  
  as a suggestion as part of the error message.
  Merged-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/version.h
  • [DH] libavdevice/version.h
  • [DH] libavfilter/version.h
  • [DH] libavformat/version.h
  • [DH] libavresample/version.h
  • [DH] libavutil/version.h
  • [DH] libpostproc/version.h
  • [DH] libswresample/version.h
  • [DH] libswscale/version.h
  • [DH] tests/ref/fate/api-mjpeg-codec-param
  • [DH] tests/ref/fate/api-png-codec-param

• Recording real-time video from images with FFmpeg

  17 juillet 2015, par Solarnum

  I am really not sure what else I could be doing to achieve this. I’m trying to record the actions in one of the views in my Android app so that it can be played back later and show the previous actions in real time. The major problem (among others, because there is no way I’m doing this optimally) is that the video takes at least 4 times longer to make than it does to playback. If I ask FFmpeg to create a 5 second video the process will run in the background for 20 seconds and output a greatly accelerated 5 second video.

  My current strategy is to use the -loop 1 parameter on a single image file and continuously write a jpeg to that image file. (If someone has a better idea than this for feeding continuously updated image information to FFmpeg let me know)

  encodingThread = new Thread(new Runnable() {
  
              private boolean running = true;
  
              @Override
  
              public void run() {
  
                  while (running) {
  
                      try {
  
  
  
                          Bitmap bitmap = makeBitmapFromView();
  
  
  
                          String filepath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/test.jpg";
  
                          File file = new File(filepath);
  
                          FileOutputStream fout = new FileOutputStream(file);
  
                          bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fout);
  
                          fout.flush();
  
                          fout.close();
  
                          Thread.sleep(50);
  
                      } catch (IOException e) {
  
                          e.printStackTrace();
  
                      } catch (InterruptedException e) {
  
                          running = false;
  
                      }
  
                  }
  
              }
  
          });
  
          startVideoMaking();
  
          encodingThread.start();

  The startVideoMaking method is as follows :

  private void startVideoMaking(){
  
      ffmpeg.killRunningProcesses();
  
              File outputFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/testout.mp4");
  
              String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/test.jpg";
  
              String output = Environment.getExternalStorageDirectory().getAbsolutePath() + "/testout.mp4";
  
  
  
              String command = "-loop 1 -t 5 -re -i " + path + " -c:v libx264 -loglevel verbose -vsync 0 -threads 0 -preset ultrafast -tune zerolatency -y -pix_fmt yuv420p " + output;
  
              executeFFM(command);
  
  }

  Just to make it clear, the FFmpeg command that I am executing is

  ffmpeg -loop 1 -re -i /storage/emulated/0/test.jpg -t 5 -c:v libx264 -loglevel verbose -vsync 0 -threads 0 -preset ultrafast -tune zerolatency -y -pix_fmt yuv420p /storage/emulated/0/testout.mp4

  The makeBitmapFromView() method takes about 50ms to process and writing the bitmap to the sd card takes around 200ms, which is not great.

  I’m pretty lost as to what other solutions there would be to creating a video of a single view in Android. I know there is the MediaCodec class, but I couldn’t get that to work and also it would raise my minimum sdk, which is not ideal. I’m also not sure that the MediaCodec class would even solve my problem.

  Is there some way that I can get FFmpeg to create a 5 second video that is equivalent to 5 seconds of real time ? I have also tried converting a single image, without updating it’s content continuously and had the same results.

  If my question isn’t clear enough let me know.