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• FFMPEG compiling on heroku

  17 juillet 2013, par Jan

  I have a Rails app running in heroku.

  I wanna watermark an original AUDIO-file with another AUDIO-file through a merging/mixing (amerge or amix) filter. Also fades and looping should work.

  FFMPEG must be compiled for this feature to run on heroku.
  My steps I got from this GIST which uses Vuclan

  https://gist.github.com/liufengyun/5055354

  Locally I use the following term to convert with Carrierwave which is an uploader :

  "-i Original.aiff -i public/watermark/#{ENV['WATERMARK_FILENAME']}.aiff -loop 1 -filter_complex '[1]afade=t=in:ss=0:d=1[4];[4]afade=t=out:st=#{self.evaluate_length-2}:d=2[5];[5][0]amix=duration=shortest[out]' -map [out]"

  This works with the ffmpeg built in on my mac.

  My compiled version for heroku does contain amerge, amix and the libavformat library.

  This is the log which I got from heroku when I go to my upload form and uplaod a file :
  (all this works, but only locally).

  Started POST "/sounds" for 84.113.97.32 at 2013-07-15 21:14:33 +0000
  
  2013-07-15T21:14:33.175631+00:00 app[web.1]: Running transcoding...
  
  2013-07-15T21:14:33.175631+00:00 app[web.1]: ffmpeg -y -i /tmp/sounds/1373922873-2-5714/watermark_loop-95.aiff -i public/watermark/1khz.aiff -loop 1 -filter_complex '[1]afade=t=in:ss=0:d=1[4];[4]afade=t=out:st=-2.0:d=2[5];[5][0]amix=duration=shortest[out]' -map [out] /tmp/sounds/1373922873-2-5714/watermark_loop-95.aiff
  
  2013-07-15T21:14:33.175631+00:00 app[web.1]:
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]: Failed encoding...
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]: ffmpeg -y -i /tmp/sounds/1373922873-2-5714/watermark_loop-95.aiff -i public/watermark/1khz.aiff -loop 1 -filter_complex '[1]afade=t=in:ss=0:d=1[4];[4]afade=t=out:st=-2.0:d=2[5];[5][0]amix=duration=shortest[out]' -map [out] /tmp/sounds/1373922873-2-5714/watermark_loop-95.aiff
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]:
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]: ffmpeg: error while loading shared libraries: libavformat.so.54: cannot open shared object file: No such file or directory
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]:
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]: Errors: encoded file is invalid.
  
  2013-07-15T21:14:33.241221+00:00 app[web.1]:
  
  2013-07-15T21:14:33.277487+00:00 app[web.1]:
  
  2013-07-15T21:14:33.277487+00:00 app[web.1]: FFMPEG::Error (Failed encoding.Errors: encoded file is invalid. Full output: ffmpeg: error while loading shared libraries: libavformat.so.54: cannot open shared object file: No such file or directory
  
  2013-07-15T21:14:33.277487+00:00 app[web.1]: ):
  
  2013-07-15T21:14:33.277487+00:00 app[web.1]:   app/uploaders/sound_uploader.rb:39:in `watermarking'
  
  2013-07-15T21:14:33.277487+00:00 app[web.1]:

  It's my 6th attempt to compile, get ffmpeg running correctly and watermarking my sounds on heroku.

  Please help me out of this neverending story.

• How to convert H.264 format videos to H.263 using avconv or ffmpeg tool

  15 juillet 2013, par Bagesh Sharma

  I run below given command but getting error -

  avconv -y -i song_family.mp4 -c:v h263 -s 352x288 1.mp4

  The log generated is -

  avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers built on Mar 30 2013 22:23:21 with gcc 4.7.2 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'song_family.mp4' : Metadata : major_brand : M4V minor_version : 1 compatible_brands : M4V mp42isom creation_time : 2013-02-19 22:12:33 Duration : 00:01:17.90, start : 0.000000, bitrate : 493 kb/s Stream #0.0(eng) : Video : h264 (Baseline), yuv420p, 1024x768 [PAR 1:1 DAR 4:3], 397 kb/s, 15 fps, 15 tbr, 15k tbn, 30 tbc Metadata : creation_time : 2013-02-19 22:12:33 Stream #0.1(eng) : Audio : aac, 44100 Hz, stereo, s16, 93 kb/s Metadata : creation_time : 2013-02-19 22:12:33 [buffer @ 0x98b9d00] w:1024 h:768 pixfmt:yuv420p [scale @ 0x98b9f60] w:1024 h:768 fmt:yuv420p -> w:352 h:288 fmt:yuv420p flags:0x4 [mp4 @ 0x98b8e60] track 0 : could not find tag, codec not currently supported in container Output #0, mp4, to '1.mp4' : Metadata : major_brand : M4V minor_version : 1 compatible_brands : M4V mp42isom creation_time : 2013-02-19 22:12:33 encoder : Lavf53.21.1 Stream #0.0(eng) : Video : h263, yuv420p, 352x288 [PAR 12:11 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 15 tbc Metadata : creation_time : 2013-02-19 22:12:33 Stream #0.1(eng) : Audio : libvo_aacenc, 44100 Hz, stereo, s16, 200 kb/s Metadata : creation_time : 2013-02-19 22:12:33 Stream mapping : Stream #0:0 -> #0:0 (h264 -> h263) Stream #0:1 -> #0:1 (aac -> libvo_aacenc) Could not write header for output file #0 (incorrect codec parameters ?)

• How to convert .mov files to .mp4 (H264) using ffmpeg using windows .bat file ?

  13 juillet 2013, par kheya

  I have a number of different video files (mov, avi, flv, mp4, 3gp, wmv) in a folder.

  I need to use a batch file that will convert all mov, avi, wmv, 3gp files in the folder
  Also I need to skip any flv, mp4 files

  I have this command, but it gives error and generates 0 size files :

  for %%F in (*.mov) do ffmpeg.exe -i "%%~fF" -vcodec copy -acodec copy "%%~dpF\%%~nF.mp4"

  The above line just tries to process mov files. I get same result for avi files.

  I want to keep the file name same. I get the file names correctly but it gives error :

      ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
  
  e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
  
  ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
  
  ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
  
  eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
  
  amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
  
  enable-libxvid --enable-zlib
  
    libavutil      52. 39.100 / 52. 39.100
  
    libavcodec     55. 18.102 / 55. 18.102
  
    libavformat    55. 12.102 / 55. 12.102
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 80.101 /  3. 80.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Guessed Channel Layout for  Input Stream #0.1 : mono
  
  Input #0, avi, from 'C:\musa\Challenge\FFMPEG\Test\file5.AVI':
  
    Metadata:
  
      encoder         : OPTURA20
  
    Duration: 00:00:10.01, start: 0.000000, bitrate: 1518 kb/s
  
      Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p, 320x240, 14.99 fps,
  
   14.99 tbr, 14.99 tbn, 14.99 tbc
  
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16,
  
  256 kb/s
  
  [mp4 @ 00000000024bc980] Tag [1][0][0][0]/0x00000001 incompatible with output co
  
  dec id '65536' ([0][0][0][0])
  
  Output #0, mp4, to 'C:\musa\Challenge\FFMPEG\Test\\file5.mp4':
  
    Metadata:
  
      encoder         : OPTURA20
  
      Stream #0:0: Video: mjpeg (l[0][0][0] / 0x006C), yuvj422p, 320x240, q=2-31,
  
  14.99 fps, 90k tbn, 14.99 tbc
  
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, 256 k
  
  b/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invali
  
  d data found when processing input