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• FFMPEG - Stream discovered after head already parsed [on hold]

  7 février 2014, par John Doe

  I am trying to live transcode an RTMP stream to another RTMP HLS stream using the following command :

  ffmpeg -re -i rtmp://localhost/videochat/testing -c:v libx264 -c:a:0 libfaac -b:a:0 480k -f flv rtmp://localhost:12345/hls/mystream;

  However I receive the following error and the transcoding never begins :

  ffmpeg version git-2014-02-06-474db7a Copyright (c) 2000-2014 the FFmpeg developers
  
  built on Feb  6 2014 22:20:14 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --               enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
  
  libavutil      52. 63.100 / 52. 63.100
  
  libavcodec     55. 49.101 / 55. 49.101
  
  libavformat    55. 30.100 / 55. 30.100
  
  libavdevice    55.  7.100 / 55.  7.100
  
  libavfilter     4.  1.102 /  4.  1.102
  
  libswscale      2.  5.101 /  2.  5.101
  
  libswresample   0. 17.104 /  0. 17.104
  
  libpostproc    52.  3.100 / 52.  3.100
  
  Metadata:
  
  description           Chat using VideoChat example.
  
  [flv @ 0x1ec89e0] Stream discovered after head already parsed
  
  ^C[flv @ 0x1ec89e0] Could not find codec parameters for stream 0 (Video: none):    unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, flv, from 'rtmp://localhost/videochat/testing':
  
  Metadata:
  
  description     : Chat using VideoChat ex   ?5P
  
  Duration: N/A, start: 0.000000, bitrate: N/A
  
  Stream #0:0: Video: none, 1k tbr, 1k tbn, 1k tbc
  
  Stream #0:1: Data: none
  
  Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (rtmp://localhost:12345/hls/mystream) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
  
  Output #0, flv, to 'rtmp://localhost:12345/hls/mystream':

  If anyone has ever dealt/solved this problem before, can you please share as I have been trying to solve this for 2 days but to no avail !

• how to install "dynaudnorm" audio filter for ffmpeg

  8 janvier 2019, par FranGar

  I am running linux Mint 17 64 bits-kernel 3.13-generic, with the ffmpeg version :

  ffmpeg version 2.4.3-1ubuntu1 trusty6 Copyright (c) 2000-2014

  I need to run the ’Dynaudnorm’ audio to compress audio files in a daily basis. But launching

  ffmpeg.exe -i "in_original.wav" -af dynaudnorm "out_normalized.wav"

  gives :

  [AVFilterGraph @ 0x1efe820] No such filter : ’dynaudnorm’

  The filter developer site explains that the integration in ffmpeg it’s already done for the latest binaries, but in my version (update yesterday) doesn’t show.

  It’s only Windows available ?

• FFMPEG doesn't convert from m4v files

  8 février 2014, par MattD

  I am trying to transcode an m4v file from iTunes so I can play it on Windows or XBox. I am running ffmpeg from Windows. Is there some -vcodec I need to specify or something I need to install ? Here's the command I'm running and the error I'm getting.

  Edit : Complete output

  ffmpeg version N-60393-g9707b53 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Feb  6 2014 22:07:13 with gcc 4.8.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 63.101 / 52. 63.101
  
    libavcodec     55. 49.101 / 55. 49.101
  
    libavformat    55. 30.100 / 55. 30.100
  
    libavdevice    55.  7.100 / 55.  7.100
  
    libavfilter     4.  1.102 /  4.  1.102
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] stream 0, timescale not set
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #3: not enough frames to estimate rate; consider increasing probesize
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #4: not enough frames to estimate rate; consider increasing probesize
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 1 (Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 2 (Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 3 (Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Y:02 The Empty Hearse (HD).m4v':
  
    Metadata:
  
      major_brand     : M4V 
  
      minor_version   : 0
  
      compatible_brands: M4V mp42isom
  
      creation_time   : 2014-01-13 18:51:33
  
      title           : [...]
  
      artist          : [...]
  
      album           : [...]
  
      genre           : Drama
  
      track           : 2/8
  
      disc            : 1/1
  
      date            : 2014-01-19T08:00:00Z
  
      description     : [...]
  
      hd_video        : 1
  
      network         : PBS
  
      show            : Sherlock
  
      episode_id      : 1
  
      season_number   : 3
  
      episode_sort    : 2
  
      media_type      : 10
  
      synopsis        : [...]
  
    Duration: 01:26:28.70, start: 0.000000, bitrate: 4505 kb/s
  
      Stream #0:0(eng): Audio: aac (drms / 0x736D7264), 48000 Hz, stereo, fltp, 156 kb/s (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Sound Media Handler
  
      Stream #0:1(eng): Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s, SAR 4:3 DAR 640:359, 25 fps, 25 tbr, 2500 tbn, 2500 tbc (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Video Media Handler
  
      Stream #0:2(eng): Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Sound Media Handler
  
      Stream #0:3(eng): Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Closed Caption Media Handler
  
      Stream #0:4: Video: mjpeg, yuvj444p(pc), 640x640 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  
  File 'Sherlock.wmv' already exists. Overwrite ? [y/N] [buffer @ 0000000005fc5760] Unable to parse option value "-1" as pixel format
  
      Last message repeated 1 times
  
  [buffer @ 0000000005fc5760] Error setting option pix_fmt to value -1.
  
  [graph 0 input from stream 0:1 @ 00000000027d7da0] Error applying options to the filter.
  
  Error opening filters!