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• FFmpeg stream map doesn't work any more

  5 mai 2016, par Tommy

  I have troubles to get for example first stream from MKV file. Strange is that my script used to work on older Debian and same code doesn’t work on Debian 8. I checked also manual and there is the same :

  ffmpeg -i INPUT -map 0:1 out.wav

  Do you know what is wrong ?

  Thank you

      tommy@reco1:/home/www/media/20$ ffmpeg -i /home/www/media/21/21.mkv -map 0:1 /var/www/vids/21/new.mkv  
  
  ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.9.2 (Debian 4.9.2-10)
  
    configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
  
    libavutil      54. 20.100 / 54. 20.100
  
    libavcodec     56. 26.100 / 56. 26.100
  
    libavformat    56. 25.101 / 56. 25.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.102 /  5. 11.102
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Guessed Channel Layout for  Input Stream #0.1 : mono
  
  Guessed Channel Layout for  Input Stream #0.2 : mono
  
  Guessed Channel Layout for  Input Stream #0.3 : mono
  
  Guessed Channel Layout for  Input Stream #0.4 : stereo
  
  Input #0, matroska,webm, from '/home/www/media/21/21.mkv':
  
    Metadata:
  
      MINOR_VERSION   : 0
  
      COMPATIBLE_BRANDS: mp42isom
  
      MAJOR_BRAND     : mp42
  
      ENCODER         : Lavf56.25.101
  
    Duration: 00:01:30.16, start: 0.000000, bitrate: 3512 kb/s
  
      Stream #0:0(und): Video: h264 (Main), yuv420p(tv), 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
  
      Stream #0:1: Audio: pcm_s16le, 16000 Hz, 1 channels, s16, 256 kb/s
  
      Metadata:
  
        ENCODER         : Lavc56.56.101 pcm_s16le
  
      Stream #0:2: Audio: pcm_s16le, 16000 Hz, 1 channels, s16, 256 kb/s
  
      Metadata:
  
        ENCODER         : Lavc56.56.101 pcm_s16le
  
      Stream #0:3: Audio: pcm_s16le, 16000 Hz, 1 channels, s16, 256 kb/s
  
      Metadata:
  
        ENCODER         : Lavc56.56.101 pcm_s16le
  
      Stream #0:4(und): Audio: pcm_s16le, 16000 Hz, 2 channels, s16, 512 kb/s (default)
  
      Metadata:
  
        LANGUAGE        : und
  
        ENCODER         : Lavc56.56.101 pcm_s16le
  
  /var/www/vids/21/new.mkv: No such file or directory

• Modify the ffmpeg command to work with more than one image

  16 avril 2024, par Koi Farm ĐaMi

  ffmpeg -y -i image.jpg -filter_complex "[0:v] scale=1280 :-1,loop=-1:size=2,trim=0:40,setpts=PTS-STARTPTS,setsar=1,crop='w=1280:h=720:x=0:y=min(max(0, t - 3), (40 - 3 - 3)) / (40 - 3 - 3) * (ih-oh)'" unix.mp4

  


  I want to edit the above command so it can be used for multiple images or a folder containing many images. And give all images used the same size and aspect ratio. Please help me, thank you everyone.

  


• ffmpeg - Why does concatenating .ts videos through .txt fail from \folder\ but work from \folder\subfolder~?

  2 novembre 2020, par Winter

  I have a bunch of .ts videofiles that I want to merge into a single file so I can convert it to a .mp4 video.

  


  The .ts files are in a folder "E :\videotest" like :

  


  E:\videotest\0.ts  
E:\videotest\1.ts  
[...]  
E:\videotest\100.ts


  


  I used a PowerShell command to output the filepaths in a .txt file :

  


  foreach ($i in Get-ChildItem .\*.ts) {echo "file '$i'" >> mylist.txt}


  


  The resulting mylist.txt looks like :

  


  file 'E:\videotest\0.ts'  
file 'E:\videotest\1.ts'  
[...]    
file 'E:\videotest\100.ts'  


  


  When I run the command :

  


  ffmpeg -f concat -safe "0" -protocol_whitelist "file,http,https,tcp,tls" -i "E:\videotest\concat\mylist.txt" -c copy "E:\videotest\concat\combined_video.ts"


  


  I get the error :

  


  


  Line 1 : unknown keyword ' ■f'
  
E :\videotest\concat\mylist.txt :
Invalid data found when processing input

  


  


  But if I add a subfolder layer to the files like this :

  


  E:\videotest\0\0.ts  
E:\videotest\1\1.ts  
[...]  
E:\videotest\100\100.ts  


  


  And change mylist.txt to :

  


  file 'E:\videotest\0\0.ts'  
file 'E:\videotest\1\1.ts'  
[...]    
file 'E:\videotest\100\100.ts' 


  


  The same ffmpeg command will work and create the combined_video.ts file.

  


  Why does converting work with the subfolder structure but not from the main folder ?

  


  How do I adjust the ffmpeg command to make it work ?

  


  Thank you.