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• ffmpeg failed to read header of audio file

  15 juillet 2016, par asad

  The file i am using (.m4a format) cant be read by ffmpeg. I can play this audio file in quicktime and vlc successfully. ffmpeg fails to read this particular file only. ffmpeg works with other .m4a files. Note:following works for this video too if i lower fps to 1 and resolution to 480p Following is the log :

  ffmpeg version N-80097-g89e9393 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  
    configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
  
    libavutil      55. 24.100 / 55. 24.100
  
    libavcodec     57. 43.100 / 57. 43.100
  
    libavformat    57. 37.100 / 57. 37.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 46.100 /  6. 46.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, rawvideo, from 'pipe:0':
  
    Duration: N/A, start: 0.000000, bitrate: 314818 kb/s
  
      Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 854x480, 314818 kb/s, 24 tbr, 24 tbn
  
  Input #1, png_pipe, from '/home/ec2-user/logo-watermark-green_tpd.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Video: png, rgba(pc), 287x185, 25 tbr, 25 tbn
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3b71d00] error reading header
  
  /home/ec2-user/decryptedData/audios/Blrt_Decrypt_tfss-29882287-c1d5-4c54-b674-87e9de4a9e38-audio.m4a: Invalid data found when processing input
  
  "rjRoYZaDA1_854x480@24fps_1468547071.txt"

  Following is the code :

  /home/ec2-user/bin/ffmpeg \
  
  -framerate 24 -f rawvideo -pixel_format rgb32 -video_size 854x480 -i pipe:0 \
  
  -i /home/ec2-user/logo-watermark-green_tpd.png \
  
  -i /home/ec2-user/decryptedData/audios/Blrt_Decrypt_tfss-29882287-c1d5-4c54-b674-87e9de4a9e38-audio.m4a \
  
  -filter_complex "[0:v]vflip[main];[1:v]scale=854/10:-1[si], \
  
  [main][si]overlay=main_w-overlay_w:main_h-overlay_h:format=rgb,format=yuv420p" \
  
  -c:v libx264 \
  
  -c:a copy /home/ec2-user/videos/rjRoYZaDA1_854x480@24fps_1468563244030.mp4 \
  
  2> /home/ec2-user/logs/rjRoYZaDA1_854x480@24fps_1468563244.txt

  Please let me know what can possibly be done ?

• Why my ffmpeg libs are so large ? [on hold]

  9 avril 2014, par user3504221

  I compiled ffmpeg libs on my Ubuntu 64-bits using the following script :

     mkdir ~/ffmpeg_sources

  #x264

  cd ~/ffmpeg_sources
  
     wget http://download.videolan.org/pub/x264/snapshots/last_x264.tar.bz2
  
     tar xjvf last_x264.tar.bz2
  
     cd x264-snapshot*
  
     ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --enable-static --disable-asm
  
     make
  
     make install
  
     make distclean

  #FFmpeg

  cd ~/ffmpeg_sources
  
     wget http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2
  
     tar xjvf ffmpeg-snapshot.tar.bz2
  
     cd ffmpeg
  
     PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig"
  
     export PKG_CONFIG_PATH
  
     ./configure --prefix="$HOME/ffmpeg_build" --extra-cflags="-I$HOME/ffmpeg_build/include" \
  
     --extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin" --extra-libs="-ldl" --   enable-gpl \
  
    --enable-libx264 --enable-x11grab --disable-yasm                                                                                                                               
  
     make
  
     make install
  
     make distclean
  
     hash -r

  But the final libs are really large (For example, libavcodec.a > 140 Mb). Anybody know why my libs are so large ?

  EDIT

  My Solutions :

  • add the option "—disable-debug" to the ./configure. The size of my libavcodec fell from 150Mb to 12Mb !
  • Remove all unnecessary codecs : Add the options -disable-encoders, —disable-decoders and then add only codecs you want with —enable-encoder=NAME and —enable-decoder=NAME. Print the list using ./configure —list-encoders —list-decoders. see ./configure —help for more information. (My final libavcodec has a size of 4Mo)

• ffmpeg in AWS EBS Php Environment

  3 janvier 2018, par Shihas

  I did a project in Codeigniter framework and uploaded to AWS EBS Php environment.

  In the below function I’m trying to create a thumbnail for the uploading video using ffmpeg.

  function test()
  
  {
  
      if($_FILES['video']['name'])
  
      {
  
          $extension = pathinfo($_FILES['video']['name'], PATHINFO_EXTENSION);
  
  
  
          $video_file = 'vid_'.time().rand(0,10000000);
  
          $video_file_name = $video_file.'.'.$extension;
  
          $video_thumb = $video_file.'.png';
  
  
  
          $path = base_url('/assets/portfolio_video/').$video_file_name;
  
          move_uploaded_file($_FILES["video"]["tmp_name"],$path);
  
          echo shell_exec("/usr/bin/ffmpeg -i /home/ubuntu/project/assets/portfolio_video/$video_file_name -ss 00:00:02.000 -vframes 1 /home/ubuntu/project/assets/thumbnail/$video_thumb");
  
  
  
          echo "File Name: ".$video_file_name."";
  
          echo "<img src="http://stackoverflow.com/feeds/tag/&#034;.base_url(&#034;assets/thumbnail/&#034;).$video_thumb.&#034;" style='max-width: 300px; max-height: 300px' />";
  
      }else{
  
          $this->load->view('test');
  
      }
  
  }   

  Here the problem was the video file itself not uploading. I just want to know why its not uploading files in AWS. But it works fine in my local server.

  Now I try to create a thumbnail for the already existing video in the server.

  Path of video file : /home/ubuntu/123.mp4

  Code executed :

  function test()
  
  {
  
      echo shell_exec("/usr/bin/ffmpeg -i /home/ubuntu/123.mp4 -ss 00:00:02.000 -vframes 1 /home/ubuntu/thumbnail.png");
  
  }

  But still the thumbnail is not creating.

  NOTE : When I execute the terminal command ffmpeg -i /home/ubuntu/123.mp4 -ss 00:00:02.000 -vframes 1 /home/ubuntu/thumbnail.png directly in the AWS server terminal its create the thumbnail successfully.