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• How to encode KLV stream into MPEGTS with FFMPEG ?

  27 février 2018, par gediminasgu

  I’m playing with muxing h264 video with KLV data into mpegts to make video with included KLV data like in ffmpeg samples http://samples.ffmpeg.org/MPEG2/mpegts-klv/Day%20Flight.mpg

  My command line :

  ffmpeg.exe -re -f lavfi -i testsrc=rate=30 -re -f data -i out_day.klv -map 0:0 -map 1:0 -c:v h264 -c:d klv -f mpegts test.ts

  It creates video, but data is encoded with bin_data code, but not klv :

  > ffmpeg.exe -i test.ts
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
 built with gcc 7.3.0 (GCC)
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
 libavutil      55. 78.100 / 55. 78.100
 libavcodec     57.107.100 / 57.107.100
 libavformat    57. 83.100 / 57. 83.100
 libavdevice    57. 10.100 / 57. 10.100
 libavfilter     6.107.100 /  6.107.100
 libswscale      4.  8.100 /  4.  8.100
 libswresample   2.  9.100 /  2.  9.100
 libpostproc    54.  7.100 / 54.  7.100
[mpegts @ 0000017fad6124a0] start time for stream 1 is not set in estimate_timings_from_pts
Input #0, mpegts, from 'test.ts':
 Duration: 00:00:04.93, start: 1.466667, bitrate: 78 kb/s
 Program 1
   Metadata:
     service_name    : Service01
     service_provider: FFmpeg
   Stream #0:0[0x100]: Video: h264 (High 4:4:4 Predictive) ([27][0][0][0] / 0x001B), yuv444p(progressive), 320x240 [SAR 1:1 DAR 4:3], 30 fps, 30 tbr, 90k tbn, 60 tbc
   Stream #0:1[0x101]: Data: bin_data ([6][0][0][0] / 0x0006)
At least one output file must be specified

  How to set data stream codec to KLV ?

  p.s. out_day.klv is extracted from Day Flight.mpg with command ffmpeg -i "Day Flight.mpg" -map data-re -codec copy -f data out_day.klv

  Thank you

• Using FFMPEG with PHP via shell_exec

  23 février 2018, par Peter Friedlander

  Trying to scan a directory fill of MPEG files and make framegrabs out of them using PHP.

  $e= shell_exec('find  . -regex ".*\.\(mp4\)"    -exec bash -c \'/home3/tcokchal/public_html/ffmpeg3/ffmpeg-git-20180222-64bit-static/ffmpeg -i {} -vf fps=1/8 \{}Frame55Grab%d.png\'  - {} \; 2>&1 ' );

  This only returns Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  Im trying to automate the process of a local shell script

  find . -regex ".*\.\(mp4\)"  -exec ffmpeg -i {} -vf fps=1/8 {}Frame55Grab%d.png  \;

  Which works

  Output

  ffmpeg version N-45152-ga246701e9-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
  
    libavutil      56.  7.101 / 56.  7.101
  
    libavcodec     58. 12.102 / 58. 12.102
  
    libavformat    58.  9.100 / 58.  9.100
  
    libavdevice    58.  2.100 / 58.  2.100
  
    libavfilter     7. 12.100 /  7. 12.100
  
    libswscale      5.  0.101 /  5.  0.101
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './1576498169060935.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:29.46, start: 0.000000, bitrate: 590 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 360x640, 516 kb/s, 29.93 fps, 30 tbr, 90k tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> png (native))
  
  Press [q] to stop, [?] for help
  
  [png @ 0x55ed2c0] ff_frame_thread_encoder_init failed
  
  Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Conversion failed!
  
  
  
  Done.

• Discard data stream from container using ffmpeg

  10 décembre 2020, par A.Be

  I am trying to get rid of a data (subtitle) stream within a Mp4 container, using ffmpeg.

  



  Here's the screenshot from ffprobe :

  



  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.m4v':
Metadata:
major_brand     : isom
minor_version   : 2
compatible_brands: isomiso2avc1mp41
creation_time   : 2018-01-19T15:10:48.000000Z
Duration: 00:00:42.17, start: 0.000000, bitrate: 6260 kb/s
Chapter #0:0: start 0.000000, end 42.166000
Metadata:
  title           : Chapter 1
Stream #0:0(eng): Data: bin_data (text / 0x74786574), 0 kb/s (default)
Metadata:
  creation_time   : 2018-01-19T15:10:48.000000Z
  handler_name    : Apple Alias Data Handler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, 
fltp, 317 kb/s (default)
Metadata:
  creation_time   : 2018-01-19T15:10:48.000000Z
  handler_name    : AAC audio
Stream #0:2(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 
1920x1080, 5926 kb/s, 30 fps, 30 tbr, 30k tbn, 60k tbc (default)
Metadata:
  creation_time   : 2018-01-19T15:10:48.000000Z
  handler_name    : H264 video
 **Unsupported codec with id 100359 for input stream 0**


  



  I tried :

  



   ffmpeg -i test.m4v -acodec copy -vcodec copy -sn nodata.mp4


  



  Data track still there, just moved from stream 0 to stream 2

  



  I tried also :

  



   ffmpeg -i test.m4v -acodec copy -vcodec copy -map 0:1 -map 0:2 no2.mp4


  



  Same result, track still there, just jumped to stream 0:2 no luck.

  



  Any hint ?
Thanks in advance