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• ffmpeg complains about incorrect parameters

  20 novembre 2015, par Nik So

  Hi there I am trying to convert a wave file to mp3 with ffmpeg and I get the following error messages. Could anyone perhaps give me a hint as to what the potential problem might be ? thank you !

  FFmpeg version git-7ed4ff0, Copyright (c) 2000-2011 the FFmpeg developers
  
  built on Oct 31 2015 08:02:55 with gcc 4.6.4
  
  configuration: --prefix=/srv/current/stack --enable-gpl --enable-nonfree --enable-pthreads --enable-version3 --enable-x11grab --enable-avfilter --enable-libspeex --enable-librtmp --enable-libfaac --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-libvpx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-pic --enable-shared
  
  libavutil 50. 37. 0 / 50. 37. 0
  
  libavcore 0. 16. 1 / 0. 16. 1
  
  libavcodec 52.112. 1 / 52.112. 1
  
  libavformat 52. 99. 1 / 52. 99. 1
  
  libavdevice 52. 2. 3 / 52. 2. 3
  
  libavfilter 1. 75. 0 / 1. 75. 0
  
  libswscale 0. 12. 0 / 0. 12. 0
  
  [wav @ 0xaa8560] max_analyze_duration reached
  
  Input #0, wav, from '/srv/shared/tmp/upload/upload_1747a42a8869bc9927a2e4a7d2f65368.WAV':
  
  Duration: 00:01:03.06, bitrate: 3456 kb/s
  
  Stream #0.0: Audio: pcm_s24le, 48000 Hz, 3 channels, s32, 3456 kb/s
  
  Incompatible sample format 's32' for codec 'libmp3lame', auto-selecting format 's16'
  
  Output #0, mp3, to '/srv/shared/tmp/scratch/05f12c018e4411e59e55c364c14dbce0':
  
  Stream #0.0: Audio: libmp3lame, 44100 Hz, 3 channels, s16, 128 kb/s
  
  Stream mapping:
  
  Stream #0.0 -> #0.0
  
  Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

  EDIT :
  Hi there, forgot to put the command that triggered the error, here it is :

  nice ffmpeg-v1.0.0  -i /srv/shared/tmp/upload/upload_dd34711f1164d4499bb0d4d36ae4462d.wav -acodec libmp3lame -ar 44100 -ab 128000 -f mp3 -vn /srv/shared/tmp/scratch/65e3ba218f1011e59350073ba02f8ea7

• avformat/dashenc : Add framerate to dash manifest

  18 novembre 2015, par Bryan Huh

  avformat/dashenc : Add framerate to dash manifest
  DASH manifest should have framerate specified as an attribute in the
  
  AdaptationSet element and Representation elements. Though ISO/IEC
  
  23009-1:2014 doesn’t seem to define frameRate as a required attribute,
  
  it is at least optional, and DASH-IF IOP 3.0 seems to require it. See
  
  section 3.2.4 of http://dashif.org/w/2015/04/DASH-IF-IOP-v3.0.pdf
  In the event that avg_frame_rate is not set in the muxer, we ignore the
  
  frameRate tag altogther.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/dashenc.c

• Volume adjust and channel merge on video using FFMPEG

  6 novembre 2015, par user1566352

  I’m trying to convert a recorded AVI (1 video stream, 2 audio streams[1st is stereo, 2nd is mono]) video file to H264/AAC.

  I want the second audio stream to be at 60% volume and the first at 100%.

  I also want to merge the first and second audio stream.

  Output should be H264 with AAC audio.

  The command I tried to use is :

  "ffmpeg.exe" 
  
    -i "input.avi" 
  
    -filter_complex " 
  
      [0:a:0]aformat=channel_layouts=stereo,volume=1.0[a1]; 
  
      [0:a:1]aformat=channel_layouts=mono,volume=0.6[a2]; 
  
      [a1][a2]amerge,pan=stereo|c0code>

  But I get the error :
  [AVFilterGraph @ 0000000ceb630c00] The following filters could not choose their formats : Parsed_amerge_4
  Consider inserting the (a)format filter near their input or output.
  Error configuring complex filters.
  Error number -5 occurred

  What am I doing wrong and how can it be fixed ?

  Complete Console Log :

  ffmpeg version N-76456-g6df2c94 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 5.2.0 (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-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --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-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
  
    libavutil      55.  5.100 / 55.  5.100
  
    libavcodec     57. 14.100 / 57. 14.100
  
    libavformat    57. 14.100 / 57. 14.100
  
    libavdevice    57.  0.100 / 57.  0.100
  
    libavfilter     6. 14.101 /  6. 14.101
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.100 /  2.  0.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  [avi @ 000000b1cfa6bc20] non-interleaved AVI
  
  Guessed Channel Layout for  Input Stream #0.1 : stereo
  
  Guessed Channel Layout for  Input Stream #0.2 : mono
  
  Input #0, avi, from 'input.avi':
  
    Metadata:
  
      encoder         : DxtoryCore ver2.0.0.122
  
      ISRC            : Video:Lagarith Lossless Codec Audio0:Lautsprecher (2- USB Audio CODEC ) Audio1:Mikrofon (2- USB Audio CODEC )
  
    Duration: 00:27:55.60, start: 0.000000, bitrate: 181780 kb/s
  
      Stream #0:0: Video: lagarith (LAGS / 0x5347414C), rgb24, 1920x1017, 179663 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
  
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
  
      Stream #0:2: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 1 channels, s16, 705 kb/s
  
  [Parsed_amerge_4 @ 000000b1cfaf3200] No channel layout for input 1
  
  Last message repeated 1 times
  
  [AVFilterGraph @ 000000b1cfa70c00] The following filters could not choose their formats: Parsed_amerge_4
  
  Consider inserting the (a)format filter near their input or output.
  
  Error configuring complex filters.
  
  Error number -5 occurred