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• ffmpeg - when merging an image and audio, audio gets shortened

  25 August 2014, by Gary

  I am trying to merge a png image with 11 seconds of audio and create an mp4 file. When I execute ffmpeg I end up with a total duration of 10 seconds for the mp4 file. The command I’m using is...

  ffmpeg -r 6 -loop 1 -i "image1.png" -i "audio1.wav" out.mp4

  UPDATE: Here is the log that is produced...

  FFmpeg version SVN-r15986, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  
    configuration: --extra-cflags=-fno-common --enable-memalign-hack --enable-pthr
  
    eads --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libtheora
  
    --enable-libspeex --enable-libfaac --enable-libgsm --enable-libx264 --enable-lib
  
  schroedinger --enable-avisynth --enable-swscale --enable-gpl
  
        libavutil     49.12. 0 / 49.12. 0
  
        libavcodec    52. 6. 0 / 52. 6. 0
  
        libavformat   52.23. 1 / 52.23. 1
  
        libavdevice   52. 1. 0 / 52. 1. 0
  
        libswscale     0. 6. 1 /  0. 6. 1
  
        built on Dec  3 2008 01:59:37, gcc: 4.2.4
  
  Input #0, image2, from 'image1.png':
  
  Duration: 00:00:00.16, start: 0.000000, bitrate: N/A
  
  Stream #0.0: Video: png, rgb32, 400x300,  6.00 tb(r)
  
  Input #1, wav, from 'audio1.wav':
  
    Duration: 00:00:11.07, bitrate: 88 kb/s
  
      Stream #1.0: Audio: pcm_u8, 11025 Hz, mono, s16, 88 kb/s
  
  File 'out.mp4' already exists. Overwrite ? [y/N] y
  
  Output #0, mp4, to 'out.mp4':
  
      Stream #0.0: Video: mpeg4, yuv420p, 400x300, q=2-31, 200 kb/s,  6.00 tb(c)
  
      Stream #0.1: Audio: libfaac, 11025 Hz, mono, s16, 64 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #1.0 -> #0.1
  
  Press [q] to stop encoding
  
  frame=    1 fps=  0 q=4.1 Lsize=      42kB time=0.17 bitrate=2063.7kbits/s
  
  video:14kB audio:26kB global headers:0.kB muxing overhead 4.894235%

  I have also tried using

  ffmpeg -loop 1 -i "image1.png" -i "audio1.wav" -t 11 out.mp4

  This command does create an mp4 of 11 seconds but the audio is still cut off at 10 seconds.

  Why is the audio being cutoff at 10 seconds?

  Thanks,
  Gary

• Why am I getting an error for stream #0.1?

  30 July 2014, by Rob Avery IV

  I’m converting videos using ffmpeg-php. Here is my code:

      // Set our source file
  
      $srcFile = $uploadFilm.".".$film_type;
  
      $destFile = $uploadFilm;
  
      $ffmpegPath = "ffmpeg";
  
  
  
      // Create our FFMPEG-PHP class
  
      $ffmpegObj = new ffmpeg_movie($srcFile);
  
  
  
      // Save our needed variables
  
      $srcWidth = makeMultipleTwo($ffmpegObj->getFrameWidth());
  
      $srcHeight = makeMultipleTwo($ffmpegObj->getFrameHeight());
  
      $srcFPS = $ffmpegObj->getFrameRate();
  
      if($ffmpegObj->hasAudio()){
  
          $srcAB = intval($ffmpegObj->getAudioBitRate()/1000);
  
          $srcAR = $ffmpegObj->getAudioSampleRate();
  
      }else{
  
          $srcAB = 0;
  
          $srcAR = 0;
  
      }
  
  
  
      // Call our convert using exec()
  
      //$command = $ffmpegPath . " -i " . $srcFile . " -ar " . $srcAR . " -ab " . $srcAB . "k -f flv -s " . $srcWidth . "x" . $srcHeight . " " . $destFile;
  
      //$command = "whoami";
  
      $command = $ffmpegPath . ' -i ' .'"'. $srcFile . '" -ar ' . $srcAR . ' -ab ' . $srcAB . 'k -f flv -s ' . $srcWidth . 'x' . $srcHeight . ' "' . $destFile . '" 2>&1';
  
      $outputCommand = array();
  
      $status = 1;
  
      exec($command, $outputCommand, $status);

  The output gives out this error at the end:

  Error while opening encoder for output stream #0.1 - maybe incorrect parameters such as bit_rate, rate, width or height

  I know that both $srcAB and $srcAR have values because this is the command this being ran:

  ffmpeg -i source -ar 48000 -ab 160k -f flv -s 1920x1080 destination

  Of course, after the command is executed, the "convert video" has a size 0, which means it didn’t convert it.

  What am I missing here?

  EDIT: Here is my full output:

  FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
  
    built on Jul 18 2014 08:41:45 with gcc 4.4.7 20120313 (Red Hat 4.4.7-3)
  
    configuration: --enable-libmp3lame --disable-mmx --enable-shared
  
    libavutil     50.36. 0 / 50.36. 0
  
    libavcore      0.16. 1 /  0.16. 1
  
    libavcodec    52.108. 0 / 52.108. 0
  
    libavformat   52.93. 0 / 52.93. 0
  
    libavdevice   52. 2. 3 / 52. 2. 3
  
    libavfilter    1.74. 0 /  1.74. 0
  
    libswscale     0.12. 0 /  0.12. 0
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/file/bbb_sunflower_1080p_30fps_normal.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 1
  
      compatible_brands: isomavc1
  
      creation_time   : 2013-12-16 17:44:39
  
      title           : Big Buck Bunny, Sunflower version
  
      artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
  
      comment         : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
  
      genre           : Animation
  
      composer        : Sacha Goedegebure
  
    Duration: 00:10:34.60, start: 0.000000, bitrate: 3481 kb/s
  
      Stream #0.0(und): Video: h264, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 2998 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc
  
      Metadata:
  
        creation_time   : 2013-12-16 17:44:39
  
      Stream #0.1(und): Audio: mp3, 48000 Hz, 2 channels, s16, 160 kb/s
  
      Metadata:
  
        creation_time   : 2013-12-16 17:44:42
  
      Stream #0.2(und): Audio: ac3, 48000 Hz, 6 channels, s16, 320 kb/s
  
      Metadata:
  
        creation_time   : 2013-12-16 17:44:42
  
  [buffer @ 0x2231e20] w:1920 h:1080 pixfmt:yuv420p
  
  Output #0, flv, to '/path/to/file/bbb_sunflower_1080p_30fps_normal.flv':
  
      Stream #0.0(und): Video: flv, yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 30 tbc
  
      Metadata:
  
        creation_time   : 2013-12-16 17:44:39
  
      Stream #0.1(und): Audio: libmp3lame, 48000 Hz, 6 channels, s16, 160 kb/s
  
      Metadata:
  
        creation_time   : 2013-12-16 17:44:42
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Error while opening encoder for output stream #0.1 - maybe incorrect parameters such as bit_rate, rate, width or height

• Splicer Error Creating Video: Retrieving the COM class factory for component with CLSID {78530B75-61F9-11D2-8CAD-00A024580902} failed [duplicate]

  26 September 2014, by wrox Developer

  This question already has an answer here:

  • Splicer.dll on Windows 2008
    
    3 answers
    

  I am trying to integrate splicer into my asp.net MVC Project.I had a problem with Splicer code (which create video from images) works at local but gives the following error at server:

  Retrieving the COM class factory for component with CLSID 78530B75-61F9-11D2-8CAD-00A024580902 failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

  Here is the link of my test sample

  http://fctdev.azurewebsites.net/Home/Test

  I know this question is already asked on this form and other forms but that doesn’t resolve my issue

  Please help to solve the error