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• FFmpeg destroys my Images

  14 septembre 2015, par dazzafact

  Rightnow iam trying to render a Video reading my image Folder with about 83 Images. Iam using this FFMPEG Snip :

   ffmpeg -f image2   -i images/*.jpg  -b 450k -r 30  zoom100.avi  2>&1

  But iam really frustrated, FFMPEG always replace all my Images with the first Image. And The video it also creates me is about 2 Frames long
  Here the FFMPEF Feedback

  ffmpeg version 0.8.17-4:0.8.17-0ubuntu0.12.04.1, Copyright (c) 2000-2014 the Libav developers
  
    built on Mar 16 2015 13:26:50 with gcc 4.6.3
  
  The ffmpeg program is only provided for script compatibility and will be removed
  
  in a future release. It has been deprecated in the Libav project to allow for
  
  incompatible command line syntax improvements in its replacement called avconv
  
  (see Changelog for details). Please use avconv instead.
  
  Input #0, image2, from 'images/0750.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
  
  [buffer @ 0x24a4220] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a4a00] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a52c0] w:1280 h:1280 pixfmt:yuvj420p
  
  [buffer @ 0x24a5b20] w:1280 h:1280 pixfmt:yuvj420p
  
  .....
  
  .....
  
  .....
  
  .....
  
  .....
  
  .....
  
  
  
  [buffer @ 0x24d4320] w:1280 h:1280 pixfmt:yuvj420p
  
  Incompatible pixel format 'yuvj420p' for codec 'mpeg4', auto-selecting format 'yuv420p'
  
  [buffer @ 0x24d03c0] w:1280 h:1280 pixfmt:yuvj420p
  
  [avsink @ 0x24ceea0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x24cc460] w:1280 h:1280 fmt:yuvj420p -> w:1280 h:1280 fmt:yuv420p flags:0x4
  
  Output #0, image2, to 'images/0751.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #1, image2, to 'images/0752.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #1.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #2, image2, to 'images/0753.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #2.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
      ....
  
      ....
  
      ....
  
      ....
  
  Output #82, image2, to 'images/0833.jpg':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #82.0: Video: mjpeg, yuvj420p, 1280x1280 [PAR 72:72 DAR 1:1], q=2-31, 200 kb/s, 90k tbn, 25 tbc
  
  Output #83, avi, to 'zoom100.avi':
  
    Metadata:
  
      ISFT            : Lavf53.21.1
  
      Stream #83.0: Video: mpeg4, yuv420p, 1280x1280 [PAR 1:1 DAR 1:1], q=2-31, 450 kb/s, 30 tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.0 -> #1.0
  
    Stream #0.0 -> #2.0
  
    Stream #0.0 -> #3.0
  
    Stream #0.0 -> #4.0
  
      ....
  
      ....
  
  
  
    Stream #0.0 -> #80.0
  
    Stream #0.0 -> #81.0
  
    Stream #0.0 -> #82.0
  
    Stream #0.0 -> #83.0
  
  Press ctrl-c to stop encoding
  
  frame=    1 fps=  0 q=7.0 Lq=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=7.0 q=6.5 size=      -0kB time=0.03 bitrate=  -5.3kbits/s    
  
  video:16698kB audio:0kB global headers:0kB muxing overhead -100.000129%

• How to know if ffmpeg conversion succeeded in Ruby ?

  11 septembre 2015, par 1.44mb

  I run the ffmpeg command to convert audio files to mp3 in my rails application :

  # Convert to MP3
  
  conversion_result = `ffmpeg -i "#{Refile::cache.directory}/#{self.file.id}" -f mp3 "#{_path_to_mp3}" 2>&1`

  After the conversion, an example of conversion_result is as follows :

  "ffmpeg version N-74748-gbaeb8f5 Copyright (c) 2000-2015 the FFmpeg
  developers\n built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1 14.04)\n
  configuration : —extra-libs=-ldl —prefix=/opt/ffmpeg
  —enable-avresample —disable-debug —enable-nonfree —enable-gpl —enable-version3 —enable-libopencore-amrnb —enable-libopencore-amrwb —disable-decoder=amrnb —disable-decoder=amrwb —enable-libpulse —enable-libdcadec —enable-libfreetype —enable-libx264 —enable-libx265 —enable-libfdk-aac —enable-libvorbis —enable-libmp3lame —enable-libopus —enable-libvpx —enable-libspeex —enable-libass —enable-avisynth —enable-libsoxr —enable-libxvid —enable-libvo-aacenc —enable-libvidstab\n libavutil 54. 31.100 / 54. 31.100\n libavcodec 56. 59.100 / 56. 59.100\n libavformat 56. 40.101 / 56. 40.101\n libavdevice 56. 4.100 / 56. 4.100\n libavfilter 5. 40.100 / 5. 40.100\n libavresample 2. 1. 0 / 2. 1. 0\n libswscale 3. 1.101 /
  3. 1.101\n libswresample 1. 2.101 / 1. 2.101\n libpostproc 53. 3.100 / 53. 3.100\nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from ’../mey_attachments/cache/25888dc028deaabaee4d4de19d4726573860dbce0b907131e9919d294113’ :\n
  Metadata :\n major_brand : 3gp4\n minor_version : 0\n
  compatible_brands : isom3gp4\n creation_time : 2015-09-01 16:34:01\n
  Duration : 00:00:08.57, start : 0.000000, bitrate : 426 kb/s\n Stream

  0:0(eng) : Audio : aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 48 kb/s (default)\n Metadata :\n creation_time : 2015-09-01 16:34:01\n

  handler_name : SoundHandle\nOutput #0, mp3, to
  ’/tmp/Voice00045.mp3’ :\n Metadata :\n major_brand : 3gp4\n
  minor_version : 0\n compatible_brands : isom3gp4\n TSSE :
  Lavf56.40.101\n Stream #0:0(eng) : Audio : mp3 (libmp3lame), 44100 Hz,
  mono, fltp (default)\n Metadata :\n creation_time : 2015-09-01
  16:34:01\n handler_name : SoundHandle\n encoder : Lavc56.59.100
  libmp3lame\nStream mapping :\n Stream #0:0 -> #0:0 (aac (native) -> mp3
  (libmp3lame))\nPress [q] to stop, [?] for help\nsize= 67kB
  time=00:00:08.56 bitrate= 64.5kbits/s \nvideo:0kB audio:67kB
  subtitle:0kB other streams:0kB global headers:0kB muxing overhead :
  0.465427%\n"

  How can i make sure the conversion succeeded after the command executes ?

• FFMPEG parameter 'pixel_aspect' out of range

  13 avril 2016, par Ashish Bhagat

  I am trying to extract thumbnail from video using ffmpeg but I am getting following error. Video taken from Ipad and and flipped horizontally.

  /var/www/html/ffmpeg -i "/var/www/html/media/4/event-4-video-setting-17.mp4" -r 1 -ss 00:00:03 -vframes 1 "/var/www/html/media/4/new_file.jpg"
  
  ffmpeg version N-63893-gc69defd Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jul 16 2014 05:38:01 with gcc 4.6 (Debian 4.6.3-1)
  
    configuration: --prefix=/root/ffmpeg-static/64bit --extra-cflags='-I/root/ffmpeg-static/64bit/include -static' --extra-ldflags='-L/root/ffmpeg-static/64bit/lib -static' --extra-libs='-lxml2 -lexpat -lfreetype' --enable-static --disable-shared --disable-ffserver --disable-doc --enable-bzlib --enable-zlib --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-gpl --enable-libtheora --enable-libvorbis --enable-libmp3lame --enable-gray --enable-libass --enable-libfreetype --enable-libopenjpeg --enable-libspeex --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --enable-libvpx
  
    libavutil      52. 89.100 / 52. 89.100
  
    libavcodec     55. 66.101 / 55. 66.101
  
    libavformat    55. 43.100 / 55. 43.100
  
    libavdevice    55. 13.101 / 55. 13.101
  
    libavfilter     4.  8.100 /  4.  8.100
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 19.100 /  0. 19.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/media/4/event-4-video-setting-17.mp4':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 0
  
      compatible_brands: qt
  
      creation_time   : 2015-09-08 07:03:47
  
    Duration: 00:00:05.45, start: 0.000000, bitrate: 5048 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x640, 5042 kb/s, SAR -1:1 DAR -3:4, 28.42 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        rotate          : 180
  
        creation_time   : 2015-09-08 07:03:47
  
        handler_name    : Core Media Data Handler
  
        encoder         : H.264
  
  [buffer @ 0x3183060] Value -1.000000 for parameter 'pixel_aspect' out of range [0 - 1.79769e+308]
  
      Last message repeated 3 times
  
  [buffer @ 0x3183060] Error setting option pixel_aspect to value -1/1.
  
  [graph 0 input from stream 0:0 @ 0x318b620] Error applying options to the filter.
  
  Error opening filters!