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• /root/bin/ffmpeg : error while loading shared libraries : libtheoraenc.so.1 : cannot open shared object file : No such file or directory

  12 février 2014, par Paks

  my ffmpeg command gives error when I try to convert video format. I have installed ffmpeg manually as guided in this link https://trac.ffmpeg.org/wiki/CentosCompilationGuide. for above issue I have also checked http://unix.stackexchange.com/questions/34023/ffmpeg-error-while-loading-shared-libraries-libtheoraenc-so-1 but not able to resolve my issue.

  My command is : /root/bin/ffmpeg -i /home/pulsebrk/public_html/beta/user_uploads/6/1148a008470721f06c8dc71efa70622f99799e91.avi -acodec libvorbis -ac 2 -ab 96k -ar 44100 -b 345k -s x /home/pulsebrk/public_html/beta/user_uploads/6/1148a008470721f06c8dc71efa70622f99799e91.ogv and error is : /root/bin/ffmpeg : error while loading shared libraries : libtheoraenc.so.1 : cannot open shared object file : No such file or directory

  libtheroa version is : 1.1.1 please anyone drive me for above issue.

• ffmpeg jpeg stream to webm only creates a file .webm with 1 frame (snapshot) or empty .webm file (mjpeg)

  14 novembre 2016, par moeiscool

  my problem is that when i try to turn a series of jpegs into a webm video. I either get a webm file with a single frame or a webm file with nothing in it (0 kb).

  var fs = require('fs');
  
  var path = require('path');
  
  
  
  var outStream = fs.createWriteStream(__dirname+'/output.webm');
  
  var ffmpeg = require('fluent-ffmpeg');

  this one is a mjpeg stream URL. it produces a file with nothing.

  //var proc = new ffmpeg({source:'http://xxx.xxx.xxx.xxx/goform/stream?cmd=get&channel=0',timeout:0})

  this one is a snapshot URL. it produces a file with a single frame.

  var proc = new ffmpeg({source:'http://xxx.xxx.xxx.xxx/snapshot/view0.jpg',timeout:0})
  
  
  
  .fromFormat('mjpeg')
  
  .size('2048x1536')
  
  .toFormat('webm')
  
  .withVideoBitrate('800k')
  
  .withFps(20)

  I have tried to use pipe instead but no dice :(

  //.pipe(outStream,{end:false});
  
  .writeToStream(outStream,{end:false})

  any help is appreciated.

  at this point i am up for using a basic shell command with exec but when i try that i just get errors also. Yes, it goes without saying I am a noob.

  Side note :

  I have tried things like zoneminder but it just breaks with our cameras and the number of cameras. so i am making a bare bones solution to record them. With our current cloud service we are missing very important moments and its costing more in energy and time.

• I tried to make an avi file from images using ffmpeg but the avi file is very small why ?

  13 mai 2013, par Yaron Cohen Minz

  I tried this :

  In C# i'm creating 100 bitmap files :

  for (int i = 0; i < 100; i++)
  
              {
  
  
  
                  t.Save(@"D:\ffmpegtorun\ffmpeg-20130509-git-13cb6ed-win32-static\bin\Screenshots\" + "Screenshot" + i.ToString("D6") + ".Bmp",ImageFormat.Bmp);
  
              }

  Then i'm using the ffmpeg.exe command line to create an avi file movie of all the bitmaps.

  D :\ffmpegtorun\ffmpeg-20130509-git-13cb6ed-win32-static\bin\Screenshots>ffmpeg -
  f image2 -r 5 -i Screenshot000099.bmp -c:v libx264 -r 30 out.mp4

  And before it i tried :

  D :\ffmpegtorun\ffmpeg-20130509-git-13cb6ed-win32-static\bin\Screenshots>ffmpeg -
  f image2 -r 1/5 -i Screenshot000099.bmp -c:v libx264 -r 30 out.mp4

  When i tried to use jpg files i got an error say jpeg is not supported.
  Then when the files were 1920X1080 i got an error say this resolution is not supported.

  Now i did it again and hot this :

  D:\ffmpegtorun\ffmpeg-20130509-git-13cb6ed-win32-static\bin\Screenshots>ffmpeg -
  
  f image2 -r 1/5 -i Screenshot000099.bmp -c:v libx264 -r 30 out.mp4
  
  ffmpeg version N-52941-g13cb6ed Copyright (c) 2000-2013 the FFmpeg developers
  
    built on May  9 2013 17:18:28 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-libmp3lame --enable-libopencore-amrn
  
  b --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libr
  
  tmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheo
  
  ra --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
  
  bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
  
  ble-zlib
  
    libavutil      52. 30.100 / 52. 30.100
  
    libavcodec     55.  7.100 / 55.  7.100
  
    libavformat    55.  4.101 / 55.  4.101
  
    libavdevice    55.  0.100 / 55.  0.100
  
    libavfilter     3. 63.101 /  3. 63.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [image2 @ 02532b00] Stream #0: not enough frames to estimate rate; consider incr
  
  easing probesize
  
  Input #0, image2, from 'Screenshot000099.bmp':
  
    Duration: 00:00:05.00, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: bmp, bgra, 1920x1080, 0.20 tbr, 0.20 tbn, 0.20 tbc
  
  File 'out.mp4' already exists. Overwrite ? [y/N] y
  
  No pixel format specified, yuv444p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 0253e180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0253e180] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
  
  [libx264 @ 0253e180] 264 - core 132 r2309 3b1f1f7 - H.264/MPEG-4 AVC codec - Cop
  
  yleft 2003-2013 - http://www.videolan.org/x264.html - options:  cabac=1 ref=3 de
  
  block=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1
  
  me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chr
  
  oma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1
  
  interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
  
   b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scene
  
  cut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin
  
  =0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'out.mp4':
  
    Metadata:
  
      encoder         : Lavf55.4.101
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 1920x1
  
  080, q=-1--1, 15360 tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (bmp -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=    1 fps=0.0 q=29.0 Lsize=      74kB time=00:00:00.03 bitrate=18159.5kbit
  
  s/s
  
  video:73kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.014632%
  
  [libx264 @ 0253e180] frame I:1     Avg QP:29.34  size: 74174
  
  [libx264 @ 0253e180] mb I  I16..4: 77.5%  4.0% 18.6%
  
  [libx264 @ 0253e180] 8x8 transform intra:4.0%
  
  [libx264 @ 0253e180] coded y,u,v intra: 13.7% 8.5% 8.4%
  
  [libx264 @ 0253e180] i16 v,h,dc,p: 66% 34%  0%  0%
  
  [libx264 @ 0253e180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 29% 55%  1%  0%  0%  0%
  
   0%  2%
  
  [libx264 @ 0253e180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 38% 14%  2%  2%  3%  3%
  
   2%  3%
  
  [libx264 @ 0253e180] kb/s:17801.76
  
  
  
  D:\ffmpegtorun\ffmpeg-20130509-git-13cb6ed-win32-static\bin\Screenshots>

  The results are a very small out.mp4 or if it was jpg and avi before files.
  For now the out.mp4 file on the hard disk is : 73.8KB

  What i want is to create in the CSHARP 100 jpg files then make one avi file of them using the ffmpeg with h264 of mpeg4 .