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• Unable to convert .mp3 to .m4a using ffmpeg [closed]

  4 mai 2013, par rahulg

  I am fully aware the legal constraints in using libfaac but this is just for my testing purpose.

  I have compiled ffmpeg with faac enabled. So when I tried to convert an .mp3 to a .m4a here is the error that I am getting. Please provide a resolution to this problem. I tried it on two different sources of .mp3, still I am getting the same error.

  [user@ip-10-161-13-26 ~]$ ffmpeg  -i Kalimba.mp3 -c:a libfaac Kalimba.m4a
  
  ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on May  4 2013 09:33:27 with gcc 4.4.6 20120305 (Red Hat 4.4.6-4)
  
    configuration: --enable-libfaac --enable-nonfree --disable-yasm
  
    libavutil      51. 54.100 / 51. 54.100
  
    libavcodec     54. 23.100 / 54. 23.100
  
    libavformat    54.  6.100 / 54.  6.100
  
    libavdevice    54.  0.100 / 54.  0.100
  
    libavfilter     2. 77.100 /  2. 77.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 15.100 /  0. 15.100
  
  [mp3 @ 0x2464680] Header missing
  
  [mp3 @ 0x2463100] max_analyze_duration 5000000 reached at 5015510
  
  [mp3 @ 0x2463100] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, mp3, from 'Kalimba.mp3':
  
    Metadata:
  
      publisher       : Ninja Tune
  
      track           : 1
  
      album           : Ninja Tuna
  
      artist          : Mr. Scruff
  
      album_artist    : Mr. Scruff
  
      title           : Kalimba
  
      genre           : Electronic
  
      composer        : A. Carthy and A. Kingslow
  
      date            : 2008
  
    Duration: 00:05:50.60, start: 0.000000, bitrate: 191 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
  
      Stream #0:1: Video: mjpeg, yuvj420p, 512x512, 90k tbr, 90k tbn, 90k tbc
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
  Output #0, ipod, to 'Kalimba.m4a':
  
    Metadata:
  
      publisher       : Ninja Tune
  
      track           : 1
  
      album           : Ninja Tuna
  
      artist          : Mr. Scruff
  
      album_artist    : Mr. Scruff
  
      title           : Kalimba
  
      genre           : Electronic
  
      composer        : A. Carthy and A. Kingslow
  
      date            : 2008
  
      Stream #0:0: Video: none, q=2-31, 128 kb/s, 90k tbn
  
      Metadata:
  
        title           : thumbnail
  
        comment         : Cover (front)
  
      Stream #0:1: Audio: none, 0 channels, 128 kb/s
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (mjpeg -> ?)
  
    Stream #0:0 -> #0:1 (mp3 -> libfaac)
  
  Encoder (codec none) not found for output stream #0:0

  MP3 file is at http://db.tt/HtpEBpFU

  Also while using Faac independently I get this weird error for any file.

  Freeware Advanced Audio Coder
  
  FAAC 1.28
  
  
  
  Couldn't open input file sample.mp3

• ffmpeg fails to convert an uploaded video file whose size greater than 14mb when executed through c#.net

  28 avril 2013, par Harun

  I am converting videos to flv using ffmpeg.exe through c# and the process gets stuck and the conversion fails if the file size exceeds 14mb. I've tried to run ffmpeg directly through command prompt and it works fine regardless of size.

  My conversion code is as follows :

  OutputFile = SavePath + "SWF\\" + WithOutExt + ".flv";
  
  FilArgs = string.Format("-i {0} -ar 22050 -qscale 1 {1}",InputFile,OutputFile);
  
  
  
  Process proc;
  
  proc = new Process();
  
  
  
  try
  
  {
  
       proc.StartInfo.FileName = spath + "\\ffmpeg\\ffmpeg.exe";
  
       proc.StartInfo.Arguments = FilArgs;
  
       proc.StartInfo.UseShellExecute = false;
  
       proc.StartInfo.CreateNoWindow = false;
  
       proc.StartInfo.RedirectStandardOutput = true;
  
       proc.StartInfo.RedirectStandardError = true;
  
       proc.Start();
  
  
  
       string StdOutVideo = proc.StandardOutput.ReadToEnd();
  
       string StdErrVideo = proc.StandardError.ReadToEnd();
  
   }
  
   finally
  
   {
  
       proc.WaitForExit();
  
       proc.Close();
  
   }

  When I tried to manually stop the running process The stderroutput is as follows :

  FFmpeg version SVN-r21231-Sherpya, Copyright (c) 2000-2010 Fabrice Bellard, et al.
  built on Jan 16 2010 05:42:31 with gcc 4.2.5 20080919 (prerelease) [Sherpya]
  libavutil 50. 7. 0 / 50. 7. 0
  libavcodec 52.47. 0 / 52.47. 0
  libavformat 52.47. 0 / 52.47. 0
  libavdevice 52. 2. 0 / 52. 2. 0
  libavfilter 1.15. 0 / 1.15. 0
  libswscale 0. 8. 0 / 0. 8. 0
  libpostproc 51. 2. 0 / 51. 2. 0
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C :\Project-Folder-Files\ThirtySecondPitch\video\7.mp_c88a8ec2-3a60-4133-aee6-7e2d93b62324.mp4' :
  Metadata :
  major_brand : isom
  minor_version : 512
  compatible_brands : isomiso2mp41
  Duration : 00:00:23.13, start : 0.000000, bitrate : 9261 kb/s
  Stream #0.0(jpn) : Video : mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 9128 kb/s, 30 tbr, 30 tbn, 30 tbc
  Stream #0.1(jpn) : Audio : aac, 48000 Hz, stereo, s16, 127 kb/s
  Output #0, flv, to 'C :\Project-Folder-Files\ThirtySecondPitch\video\SWF\7.mp_c88a8ec2-3a60-4133-aee6-7e2d93b62324.flv' :
  Stream #0.0(jpn) : Video : flv, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 1k tbn, 30 tbc
  Stream #0.1(jpn) : Audio : libmp3lame, 22050 Hz, stereo, s16, 64 kb/s
  Stream mapping :
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
  Press [q] to stop encoding
  frame= 19 fps= 0 q=1.0 size= 596kB time=0.50 bitrate=9839.2kbits/s
  frame= 36 fps= 33 q=1.0 size= 1284kB time=1.07 bitrate=9822.2kbits/s
  frame= 55 fps= 34 q=1.0 size= 2076kB time=1.70 bitrate=10013.6kbits/s
  frame= 74 fps= 35 q=1.0 size= 2819kB time=2.35 bitrate=9822.2kbits/s
  frame= 93 fps= 35 q=1.0 size= 3583kB time=2.95 bitrate=9943.3kbits/s
  frame= 113 fps= 36 q=1.0 size= 4457kB time=3.63 bitrate=10056.2kbits/s
  frame= 132 fps= 36 q=1.0 size= 5157kB time=4.26 bitrate=9922.3kbits/s
  frame= 152 fps= 37 q=1.0 size= 5972kB time=4.91 bitrate=9961.6kbits/s
  frame= 172 fps= 37 q=1.0 size= 6817kB time=5.62 bitrate=9943.9kbits/s
  frame= 192 fps= 37 q=1.0 size= 7676kB time=6.27 bitrate=10030.1kbits/s
  frame= 212 fps= 37 q=1.0 size= 8488kB time=6.92 bitrate=10045.9kbits/s
  frame= 232 fps= 37 q=1.0 size= 9306kB time=7.58 bitrate=10062.8kbits/s
  frame= 251 fps= 37 q=1.0 size= 10150kB time=8.26 bitrate=10072.1kbits/s
  frame= 271 fps= 37 q=1.0 size= 10970kB time=8.88 bitrate=10117.6kbits/s
  frame= 291 fps= 38 q=1.0 size= 11815kB time=9.56 bitrate=10123.7kbits/s
  frame= 311 fps= 38 q=1.0 size= 12625kB time=10.24 bitrate=10100.1kbits/s
  frame= 331 fps= 38 q=1.0 size= 13414kB time=10.89 bitrate=10088.0kbits/s
  frame= 351 fps= 38 q=1.0 size= 14125kB time=11.55 bitrate=10021.7kbits/s
  frame= 371 fps= 38 q=1.0 size= 14929kB time=12.25 bitrate=9983.0kbits/s
  frame= 391 fps= 38 q=1.0 size= 15701kB time=12.90 bitrate=9967.8kbits/s
  frame= 411 fps= 38 q=1.0 size= 16385kB time=13.56 bitrate=9899.9kbits/s
  frame= 431 fps= 38 q=1.0 size= 17137kB time=14.21 bitrate=9878.7kbits/s
  frame= 451 fps= 38 q=1.0 size= 17938kB time=14.92 bitrate=9851.7kbits/s
  frame= 471 fps= 38 q=1.0 size= 18663kB time=15.57 bitrate=9820.0kbits/s
  frame= 491 fps= 38 q=1.0 size= 19379kB time=16.22 bitrate=9786.4kbits/s
  frame= 511 fps= 38 q=1.0 size= 20179kB time=16.90 bitrate=9780.9kbits/s
  frame= 530 fps= 38 q=1.0 size= 20893kB time=17.53 bitrate=9764.8kbits/s
  frame= 550 fps= 38 q=1.0 size= 21633kB time=18.18 bitrate=9747.3kbits/s
  frame= 570 fps= 38 q=1.0 size= 22464kB time=18.89 bitrate=9743.5kbits/s
  frame= 590 fps= 38 q=1.0 size= 23227kB time=19.54 bitrate=9737.7kbits/s
  frame= 609 fps= 38 q=1.0 size= 23992kB time=20.17 bitrate=9745.8kbits/s
  frame= 629 fps= 38 q=1.0 size= 24804kB time=20.85 bitrate=9747.4kbits/s
  frame= 648 fps= 38 q=1.0 size= 25501kB time=21.45 bitrate=9740.6kbits/s
  frame= 668 fps= 38 q=1.0 size= 26306kB time=22.13 bitrate=9739.7kbits/s
  frame= 687 fps= 38 q=1.0 size= 27040kB time=22.80 bitrate=9713.2kbits/s

• FFMPEG avformat_open_input returns unpopulated Format context

  21 avril 2013, par Michael IV

  I am trying to load avi and flv files programatically with FFMPEG API.The files seem to get loaded because avformat_open_input doesn't return 0 .But when inspecting AVFormatContext variable for every property in the inspector I am getting just "Unable to read memory" .Here is how I do it :

              av_register_all();
  
      avcodec_register_all();
  
      AVFormatContext *pFormatCtx=avformat_alloc_context();
  
  
  
  
  
      if(avformat_open_input(&pFormatCtx,"assest/comp1.avi",NULL,NULL) !=0)
  
      {
  
  
  
          printf("%s","Movie load Success");
  
      }else{
  
  
  
  
  
          printf("%s","Movie load Fail");
  
      }   

  I am using VisualStudio 2010 C++ compiler .Windows 7.

  UPDATE :

  Ok ,Please discard this question.I found the error.It was a stupid typo in the file directory path.