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• Directshow how to use Monogram X264 Encoder to capture video from webcam ?

  17 août 2016, par Phung Tien Trieu

  I am new with Directshow. Today i am trying to use Monogram x264 encoder filter with GraphStudioNext. But when i connect camera to monogram x264 encoder filter. There is an error. I don’t know what intermediate filter do i need. Can you please help ?

  See the picture : http://tientrieu.net/wp-content/uploads/2016/08/how_to_use_monogram_x264_encoder.png

• ffmpeg error : Could not write header for output file #0 (incorrect codec parameters ?) : Muxer not found

  30 janvier 2016, par Benjamin Russell

  I am trying to segment a mp4 video file for HLS playback and I am getting the following error :

  "Could not write header for output file #0 (incorrect codec parameters
   ?) : Muxer not found"

  Does anyone know what I am doing wrong ?

  input command :

  sudo ffmpeg -y -i adwd.mp4 -vcodec copy -acodec copy -force_key_frames 30 -map 0  -f segment segment_list adwd.m3u8 -segment_time 10 -segment_format mpeg_ts -segment_list_type m3u8 segment%d.ts
  
  
  
  
  
      ffmpeg version 2.8.5 Copyright (c) 2000-2016 the FFmpeg developers
  
        built with Apple LLVM version 7.0.2 (clang-700.1.81)
  
        configuration: --prefix=/usr/local/Cellar/ffmpeg/2.8.5 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
  
        libavutil      54. 31.100 / 54. 31.100
  
        libavcodec     56. 60.100 / 56. 60.100
  
        libavformat    56. 40.101 / 56. 40.101
  
        libavdevice    56.  4.100 / 56.  4.100
  
        libavfilter     5. 40.101 /  5. 40.101
  
        libavresample   2.  1.  0 /  2.  1.  0
  
        libswscale      3.  1.101 /  3.  1.101
  
        libswresample   1.  2.101 /  1.  2.101
  
        libpostproc    53.  3.100 / 53.  3.100

  Video information :

  General / Container Stream #1
  
      Total Video Streams for this File.................1
  
      Total Audio Streams for this File.................1
  
      Video Codecs Used.................................AVC
  
      Audio Codecs Used.................................AAC LC
  
      File Format.......................................MPEG-4
  
      Play Time.........................................9h 1mn
  
      Total File Size...................................588 MiB
  
      Total Stream BitRate..............................152 Kbps
  
      Encoded with......................................Lavf56.40.101
  
  Video Stream #1
  
      Codec (Human Name)................................AVC
  
      Codec (FourCC)....................................avc1
  
      Codec Profile.....................................High@L2.1
  
      Frame Width.......................................426 pixels
  
      Frame Height......................................240 pixels
  
      Frame Rate........................................29.970 fps
  
      Total Frames......................................973039
  
      Display Aspect Ratio..............................16:9
  
      Scan Type.........................................Progressive
  
      Color Space.......................................YUV
  
      Codec Settings (Summary)..........................CABAC / 4 Ref Frames
  
      QF (like Gordian Knot)............................0.005
  
      Codec Settings (CABAC)............................Yes
  
      Codec Settings (Reference Frames).................4
  
      Video Stream Length...............................9h 1mn 7s 68ms
  
      Video Stream BitRate..............................15.2 Kbps
  
      Video Stream BitRate Mode.........................VBR
  
      Bit Depth.........................................8 bits
  
      Video Stream Size.................................58.9 MiB (10%)
  
      Video Encoder.....................................x264 - core 148 r2601 a0cd7d3
  
      Video Encoder (Settings)..........................cabac=1 / ref=3 / deblock=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 / chroma_qp_offset=-2 / threads=3 / lookahead_threads=1 / 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 / scenecut=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
  
  Audio Stream #1
  
      Codec.............................................AAC
  
      Codec (FourCC)....................................40
  
      Audio Stream Length...............................9h 1mn 7s 104ms
  
      Audio Stream BitRate..............................128 Kbps
  
      Audio Stream BitRate Mode.........................CBR
  
      Number of Audio Channels..........................2
  
      Audio Channel's Positions.........................Front: L R
  
      Sampling Rate.....................................44.1 KHz
  
      Audio Stream Size.................................495 MiB (84%)

• Unrecognized options even though compiled FFmpeg on Ubuntu manually

  11 février 2016, par Kathy Lee

  I would like to convert a video from .avi to .mp4 with same quality using ffmpeg but the command I put in the terminal always report some errors saying that there are unrecognized options.

  I have compiled the ffmpeg manually following the steps in http://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

  After compiling the ffmpeg, I used the command below the compress the video

  ffmpeg -i input.avi -c:v libx264 -crf 19 -preset slow -c:a libfaac -b:a 192k -ac 2 output.mp4

  But the error message is saying "Unrecognized option ’crf’" :

  ffmpeg version 2.8.5 Copyright (c) 2000-2016 the FFmpeg developers
  
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
  configuration: --enable-nonfree --enable-pic --enable-shared
  
  libavutil      54. 31.100 / 54. 31.100
  
  libavcodec     56. 60.100 / 56. 60.100
  
  libavformat    56. 40.101 / 56. 40.101
  
  libavdevice    56.  4.100 / 56.  4.100
  
  libavfilter     5. 40.101 /  5. 40.101
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  2.101 /  1.  2.101
  
  Unrecognized option 'crf'.
  
  Error splitting the argument list: Option not found

  Then I tried to omit flag -crf, but I got error saying

  Unrecognized option 'preset'.
  
  Error splitting the argument list: Option not found

  Then I omitted flag -preset, it says I do not have libx264....

  [mjpeg @ 0x164f2c0] Changeing bps to 8
  
  Input #0, avi, from 'backup_bush.avi':
  
    Duration: 00:01:40.70, start: 0.000000, bitrate: 12409 kb/s
  
      Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 400x250 [SAR 1:1 DAR 8:5], 12407 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
  
  Unknown encoder 'libx264'

  I am very confused what is going on because I have complied ffmpeg step by step and also installed the dependencies such as libx264 as described in http://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu. The command I used to configure ffmpeg is

   ./configure   --prefix="$HOME/ffmpeg_build"   --pkg-config-flags="--static"   --extra-cflags="-I$HOME/ffmpeg_build/include"   --extra-ldflags="-L$HOME/ffmpeg_build/lib"   --bindir="$HOME/bin"   --enable-gpl   --enable-libass   --enable-libfdk-aac   --enable-libfreetype   --enable-libmp3lame   --enable-libopus   --enable-libtheora   --enable-libvorbis   --enable-libvpx   --enable-libx264   --enable-nonfree

  Why these errors happen ? How can I fix them to allow me to convert the video from .avi to .mp4 ?

  Thank you very much !