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• FFmpeg error m4v to flv requested bitrate is too low

  20 décembre 2012, par Pradeep Singh

  ---

  FFMPEG OUTPUT

  ---

  COMMAND

  /usr/local/bin/ffmpeg -i '/home/machine/public_html/video_1355531272.m4v' -s '640x480' -sameq -ab '64k' -ar '44100' -f 'flv' -pass '1' -passlogfile '/home/machine/public_html/tmp/1355531273-50cbc4090d696-multipass'  -y /home/machine/public_html/tmp/1355531273-50cbc4090d2a9.flv &> /home/machine/public_html/tmp/1355531273-50cbc4090da7c.info
  
  /usr/local/bin/ffmpeg -i '/home/machine/public_html/video_1355531272.m4v' -s '640x480' -sameq -ab '64k' -ar '44100' -f 'flv' -pass '2' -passlogfile '/home/machine/public_html/tmp/1355531273-50cbc4090d696-multipass'  -y /home/machine/public_html/tmp/1355531273-50cbc4090d2a9.flv &> /home/machine/public_html/tmp/1355531273-50cbc4090da7c.info
  
  eng): Video: h264, yuv420p, 960x540, 3428 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 5994 tbc
  
      Metadata:
  
        creation_time   : 2012-12-14 22:50:55
  
      Stream #0.1(eng): Audio: aac, 44100 Hz, stereo, s16, 111 kb/s
  
      Metadata:
  
        creation_time   : 2012-12-14 22:50:55
  
  [buffer @ 0xdd079d0] w:960 h:540 pixfmt:yuv420p
  
  [scale @ 0xdd07da0] w:960 h:540 fmt:yuv420p -> w:640 h:480 fmt:yuv420p flags:0xa0000004
  
  [flv @ 0xdd041c0] requested bitrate is too low
  
  Output #0, flv, to '/home/machine/public_html/tmp/1355531273-50cbc4090d2a9.flv':
  
      Stream #0.0(eng): Video: flv, yuv420p, 640x480, q=2-31, pass 2, 200 kb/s, 90k tbn, 29.97 tbc
  
      Metadata:
  
        creation_time   : 2012-12-14 22:50:55
  
      Stream #0.1(eng): Audio: adpcm_swf, 44100 Hz, stereo, s16, 64 kb/s
  
      Metadata:
  
        creation_time   : 2012-12-14 22:50:55
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  -------------------------------
  
  RESULT
  
  -------------------------------
  
  Execute error. Output for file "/home/machine/public_html/video_1355531272.m4v" was found, but the file contained no data. Please check the available codecs compiled with FFmpeg can support this type of conversion. You can check the encode decode availability by inspecting the output array from PHPVideoToolkit::getFFmpegInfo().

• subtitles dont show ffmpeg issue

  30 septembre 2016, par Bilal Shahid

  I’m using below command to burn subtitles to a video. I have successfully done it via terminal in ubuntu. I’ve used this library in android android library and I’ve run the same command to do the same task but it wont work the command executes successfully but in result video I don’t see any subtitle.

  fmpeg -i /home/s9iper1/a.mp4 -vf "subtitles=/home/s9iper1/titles.srt:force_style='Fontsize=24,PrimaryColour=&H0000ff&'" -c:a copy /home/s9iper1/out.mp4

• running ffmpeg via nodejs error

  11 mars 2021, par Greyhammer

  I'm trying to run ffmpeg from node, and I'm getting an error. Here is the code

  



  var exec = require('child_process').exec;

var cmd = '/home/ubuntu/bin/ffmpeg -i /home/ubuntu/input.flv -s 640x480 -y -codec:a aac -b:a 44.1k -r 15 -b:v 1000k -codec:v h264 -f mp4 /home/ubuntu/output.mp4';

exec(cmd, function(err, stdout, stderr) {
    if (err) console.log('err:\n' + err);
    if (stderr) console.log('stderr:\n' + stderr);
    console.log('stdout:\n' + stdout);
});


  



  When I run this node script, I get the following errors :

  



  err:
Error: Command failed: /home/ubuntu/bin/ffmpeg -i /home/ubuntu/input.flv -s 640x480 -y -codec:a aac -b:a 44.1k -r 15 -b:v 1000k -codec:v h264 -f mp4 /home/ubuntu/output.mp4
ffmpeg version N-83323-g126e965 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --bindir=/home/ubuntu/bin --enable-gpl --enable-libopus --enable-libvpx --enable-libvorbis --enable-libmp3lame --enable-libfdk-aac --enable-libx264 --enable-nonfree
  libavutil      55. 45.100 / 55. 45.100
  libavcodec     57. 75.100 / 57. 75.100
  libavformat    57. 66.101 / 57. 66.101
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 72.100 /  6. 72.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
/home/ubuntu/input.flv: Invalid data found when processing input

stderr:
ffmpeg version N-83323-g126e965 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  configuration: --prefix=/home/ubuntu/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --bindir=/home/ubuntu/bin --enable-gpl --enable-libopus --enable-libvpx --enable-libvorbis --enable-libmp3lame --enable-libfdk-aac --enable-libx264 --enable-nonfree
  libavutil      55. 45.100 / 55. 45.100
  libavcodec     57. 75.100 / 57. 75.100
  libavformat    57. 66.101 / 57. 66.101
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 72.100 /  6. 72.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
/home/ubuntu/input.flv: Invalid data found when processing input

stdout:


  



  But when I run

  



  /home/ubuntu/bin/ffmpeg -i /home/ubuntu/input.flv -s 640x480 -y -codec:a aac -b:a 44.1k -r 15 -b:v 1000k -codec:v h264 -f mp4 /home/ubuntu/output.mp4


  



  straight in the terminal, It works flawlessly. I think it has to do with how node runs the command but all my google searching has returned zero useful results. Any help is greatly appreciated.