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• ffmpeg failing to convert

  27 mars 2014, par Daniel7912

  I am using the following command to convert a mp4 on my server to webm as part of a Node.js script.

  var command = execSync('ffmpeg -i '+video+' -vpre libvpx-720p -cpu-used -5 -deadline realtime -b 3900k -an -f webm -y '+saveTo);

  When running the command in a regular terminal, it works fine. However, when running it as above using the execSync() node package, I get the following console output.

  Error: ffmpeg version 1.0.8 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Mar 27 2014 17:09:06 with gcc 4.7.3 (Gentoo 4.7.3-r1 p1.3, pie-0.5.5)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-
  
  g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-O2 -pipe -march=native -fomit-frame-pointer' --extra-cflags='-O2 -pipe -march=native -fomit-frame-pointer' --extra-cxxflags
  
  ='-O2 -pipe -march=native -fomit-frame-pointer' --disable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --enable-avresample --disable-stripp
  
  ing --disable-debug --disable-doc --disable-vaapi --disable-vdpau --disable-ffplay --disable-runtime-cpudetect --enable-libmp3lame --enable-libvo-aacenc --enable-libthe
  
  ora --enable-libfdk-aac --enable-nonfree --disable-indev=v4l2 --disable-indev=alsa --disable-indev=oss --disable-indev=jack --disable-outdev=alsa --disable-outdev=oss -
  
  -disable-outdev=sdl --enable-libvorbis --enable-libvpx --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmxext --disable-ssse3 --disab
  
  le-vis --disabl  libavutil      51. 73.101 / 51. 73.101
  
    libavcodec     54. 59.100 / 54. 59.100
  
    libavformat    54. 29.104 / 54. 29.104
  
    libavdevice    54.  2.101 / 54.  2.101
  
    libavfilter     3. 17.100 /  3. 17.100
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 15.100 /  0. 15.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/video/input.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      creation_time   : 2013-08-24 21:58:35
  
      encoder         : HandBrake 0.9.9 2013051800
  
    Duration: 00:06:31.46, start: 0.000000, bitrate: 5092 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 4919 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Metadata:
  
        creation_time   : 2013-08-24 21:58:35
  
      Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 168 kb/s
  
      Metadata:
  
        creation_time   : 2013-08-24 21:58:35
  
  Please use -b:a or -b:v, -b is ambiguous
  
  [libvpx @ 0x7f0c40] v1.3.0
  
  Output #0, webm, to '/path/to/video/output.webm':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42isomavc1
  
      encoder         : Lavf54.29.104
  
      Stream #0:0(und): Video: vp8, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=11-51, 3900 kb/s, 1k tbn, 25 tbc
  
      encoder         : Lavf54.29.104                                                                                                                          [4009/9202]
  
      Stream #0:0(und): Video: vp8, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=11-51, 3900 kb/s, 1k tbn, 25 tbc
  
      Metadata:
  
        creation_time   : 2013-08-24 21:58:35
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libvpx)
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x8f42a0] AVC: nal size 3235393
  
      Last message repeated 1 times
  
  [h264 @ 0x8f42a0] no frame!
  
  [h264 @ 0x7be7e0] concealing 7123 DC, 7123 AC, 7123 MV errors in P frame
  
  [h264 @ 0x8f46c0] AVC: nal size 2572289
  
      Last message repeated 1 times
  
  [h264 @ 0x8f46c0] no frame!
  
  [h264 @ 0x8f4ae0] AVC: nal size 11559745
  
      Last message repeated 1 times
  
  [h264 @ 0x8f4ae0] no frame!
  
  [h264 @ 0x8f4f00] AVC: nal size 781975966
  
      Last message repeated 1 times
  
  [h264 @ 0x8f4f00] no frame!
  
  [h264 @ 0x7be7e0] AVC: nal size -1537130086
  
      Last message repeated 1 times
  
  [h264 @ 0x7be7e0] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x8f42a0] AVC: nal size -1303101030
  
      Last message repeated 1 times
  
  [h264 @ 0x8f42a0] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x8f46c0] AVC: nal size 833290655
  
      Last message repeated 1 times
  
  [h264 @ 0x8f46c0] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x8f4ae0] AVC: nal size -816365157
  
      Last message repeated 1 times
  
  [h264 @ 0x8f4ae0] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x8f4f00] AVC: nal size 776798623
  
      Last message repeated 1 times
  
  [h264 @ 0x8f4f00] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x7be7e0] AVC: nal size -824622693
  
      Last message repeated 1 times
  
  [h264 @ 0x7be7e0] no frame!
  
  Error while decoding stream #0:0: Operation not permitted
  
  [h264 @ 0x8f42a0] AVC: nal size 1276789151
  
  Error while decoding stream #0:0: Operation not permitted
  
  frame=    4 fps=0.0 q=0.0 Lsize=     107kB time=00:00:00.16 bitrate=5476.5kbits/s    
  
  video:106kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.473334%
  
  Received signal 2: terminating.

  The 'no frame' bits repeat several thousand times before it reaches the final section.

  Could someone tell me what's wrong ?

  Thanks for any help

• ffmpeg extracts about 30 sec of audio and stops [on hold]

  30 mars 2014, par user2957951

  I'm trying to extract audio from an mp4 video stream. I use ffmpeg but it seems to stop after about 30 sec or so ! Ideally, I'd like to extract the audio as mp3, but ffmpeg crashes if I specify .mp3 as the file extension.

  Stream : http://vimeo.com/82975217

  Here is the command I use and the output I get :

  c:\>ffmpeg -i "http://av.vimeo.com/23628/941/105695865.mp4?token2=1396166650_12b
  
  05b5c828c98a2feec82fa76230f64&aksessionid=c18fdc4c061823af&ns=4" -vn -acodec cop
  
  y audiofile1.aac
  
  ffmpeg version N-59742-gd9481dc Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jan  9 2014 22:04:35 with gcc 4.8.2 (GCC)
  
    configuration: --disable-static --enable-shared --enable-gpl --enable-version3
  
   --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --ena
  
  ble-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --e
  
  nable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-lib
  
  modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
  
  b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
  
  r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
  
  able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
  
   --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-
  
  libxvid --enable-zlib
  
    libavutil      52. 62.100 / 52. 62.100
  
    libavcodec     55. 47.101 / 55. 47.101
  
    libavformat    55. 22.103 / 55. 22.103
  
    libavdevice    55.  5.102 / 55.  5.102
  
    libavfilter     4.  1.100 /  4.  1.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'http://av.vimeo.com/23628/941/105695865
  
  .mp4?token2=1396166650_12b05b5c828c98a2feec82fa76230f64&aksessionid=c18fdc4c0618
  
  23af&ns=4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 1
  
      compatible_brands: isomavc1
  
      creation_time   : 2012-06-29 21:30:28
  
    Duration: 01:05:34.86, start: 0.000000, bitrate: 594 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [
  
  SAR 1:1 DAR 16:9], 490 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
  
      Metadata:
  
        creation_time   : 2012-06-29 21:30:28
  
        handler_name    : GPAC ISO Video Handler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 99
  
   kb/s (default)
  
      Metadata:
  
        creation_time   : 2012-06-29 21:30:32
  
        handler_name    : GPAC ISO Audio Handler
  
  Output #0, adts, to 'audiofile1.aac':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 1
  
      compatible_brands: isomavc1
  
      encoder         : Lavf55.22.103
  
      Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 99 kb/s
  
  (default)
  
      Metadata:
  
        creation_time   : 2012-06-29 21:30:32
  
        handler_name    : GPAC ISO Audio Handler
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  size=     344kB time=00:00:27.02 bitrate= 104.2kbits/s

  As you can see it just hangs after extracting the 1st 20-30 sec, and after about min or so, the window shuts down !

  Note : That extracting video (i.e. mp4 works great, but audio does not)

  Your help/insight are much appreciated !

  Cheers !

• In FFMpeg Ubuntu “rtmp ://url live=1” not working

  13 juillet 2015, par Yuvraj Kakkar

  Trying to excute following ffmpeg command in ubuntu.

  *ffmpeg -i "rtmp://IP/live/1234 live=1" -f flv rtmp://IP/live/1234_56 *

  ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Apr  8 2014 13:15:21 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
    configuration: --prefix=/home/encoder/ffmpeg_build --extra-cflags=-I/home/encoder/ffmpeg_build/include --extra-ldflags=-L/home/encoder/ffmpeg_build/lib --bindir=/home/encoder/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  
    libavutil      52. 74.100 / 52. 74.100
  
    libavcodec     55. 58.102 / 55. 58.102
  
    libavformat    55. 36.102 / 55. 36.102
  
    libavdevice    55. 11.100 / 55. 11.100
  
    libavfilter     4.  3.100 /  4.  3.100
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [rtmp @ 0x3c5a140] Detected librtmp style URL parameters, these aren't supported by the libavformat internal RTMP handler currently enabled. See the documentation for the correct way to pass parameters.
  
  ^C[flv @ 0x3c59b00] Could not find codec parameters for stream 0 (Video: none): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [flv @ 0x3c59b00] Could not find codec parameters for stream 1 (Audio: none, 0 channels): unspecified sample format
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  rtmp://IP/live/1234 live=1: could not find codec parameters
  
  Received signal 2: terminating.

  I have installed avserver (Libav) earlier to ffmpeg.Kindly suggest any alternative to live=1 or provide suggstion.