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• Recursive ffmpeg batch script within Windows

  30 septembre 2013, par Tisch

  Complete change to the question !

  I now have the following script :

  @echo off
  
  REM keep a counter for files converted
  
  set /A nfile=0
  
  REM do not copy empty folders or any files
  
  @echo Copying directory structure from %0 to %1 ...
  
  xcopy /T %1 %2
  
  REM walk directory structure and convert each file in quiet mode
  
  for /R %1 %%v in (*.mp4, *.aac, *.flv, *.m4a, *.mp3) do (
  
      echo converting "%%~nxv" ...
  
      ffmpeg -v quiet -i "%%v" -vcodec libx264 "%2\%%~nv-converted.mp4"
  
      set /A nfile+=1
  
  )
  
  echo Done! Converted %nfile% file(s)

  Taken from : http://mostlybuggy.wordpress.com/2012/09/25/windows-batch-file-how-to-copy-and-convert-folders-recursively-with-ffmpeg/

  The videos are converting as expected when I run the following command :

  convert ..\..\folder ..\..\converted\

  However, the converted files end up in "converted" and not in their respective sub-folders.

  Any ideas ?

• Using ffprobe with Powershell

  5 mars 2014, par sebastian

  I need your help (again). I was using ffprobe with Windows PowerShell and wanted to do something similar as it is explained in this link here :

  http://spreadys.wordpress.com/2012/12/03/ffprobe-and-windows-powershell/

  It works really fantastic but I wanted to integrate a script in another script that starts ffprobe automatically with PowerShell. Said and done, I tried to write a few script-lines like you can see.

  $title = "A_Day_for_Cake_and_Accidents"
  
  $ffprobecommand = 'ffprobe -show_streams -select_streams v -print_format xml -count_frames C:\Users\Administrator\Desktop\dcp_bearbeitet\'+$title+'\'+$title+'.mov > C:\Users\Administrator\Desktop\dcp_bearbeitet\'+$title+'\totalframes.xml'
  
  
  
  $ffprobepath = 'C:\ffmpeg\ff-prompt.bat'
  
  $ffprobepathprop = 'C:\ffmpeg\ff-prompt.prop'
  
  
  
  Add-Content -Value $ffprobecommand -Path $ffprobepath
  
  
  
  $ffprobestart = "C:\ffmpeg\ff-prompt.bat -p C:\ffmpeg\ff-prompt.prop"
  
  
  
  Invoke-Expression $ffprobestart

  If I am running it I get something like this :

  "C :\Users\Administrator>ECHO OFF
   bin\ffmpeg.exe could not be found."

  Of course the script must know where to find the ffmpeg.exe but the problem for me is, that I do not know where to put the path in my script and how to run the script successfully. Does anybody know a way to solve this ?

• FFMPEG creating static video ?

  10 juillet 2018, par Kjell

  I’m using ffmpeg 4.0.1 on the latest version of MacOS. I’ve got webcam capture down, as well as creating a video from a series of images. But for some reason, when I try to do screen capture, the outputted video is a bunch of colorful static with the correct audio.

  Here is the command I use :

    ffmpeg -f avfoundation -i '1:0' -y -r 30 -pix_fmt yuv420p test.mp4

  And here are my devices :

  [AVFoundation input device @ 0x7f9924404b00] AVFoundation video devices:
  
  [AVFoundation input device @ 0x7f9924404b00] [0] FaceTime HD Camera
  
  [AVFoundation input device @ 0x7f9924404b00] [1] Capture screen 0
  
  [AVFoundation input device @ 0x7f9924404b00] AVFoundation audio devices:
  
  [AVFoundation input device @ 0x7f9924404b00] [0] Built-in Microphone

  And here is some of my config :

  built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
  
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
  libavutil      56. 14.100 / 56. 14.100
  
  libavcodec     58. 18.100 / 58. 18.100
  
  libavformat    58. 12.100 / 58. 12.100
  
  libavdevice    58.  3.100 / 58.  3.100
  
  libavfilter     7. 16.100 /  7. 16.100
  
  libavresample   4.  0.  0 /  4.  0.  0
  
  libswscale      5.  1.100 /  5.  1.100
  
  libswresample   3.  1.100 /  3.  1.100
  
  libpostproc    55.  1.100 / 55.  1.100

  Anyone have an ideas on how to fix this ?

  Update with Terminal Log

  I reran the terminal command, let it run for 30s, and then canceled the operation.

  [12:41:40 Developer@Kjells-MacBook-Air ~/desktop]$ ffmpeg -f 
  
  
  
  avfoundation -r 30 -i "1:0" -pix_fmt yuv420p output.mov
  
  ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 9.1.0 (clang-902.0.39.2)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  [avfoundation @ 0x7fc9a4808e00] Selected pixel format (yuv420p) is not supported by the input device.
  
  [avfoundation @ 0x7fc9a4808e00] Supported pixel formats:
  
  [avfoundation @ 0x7fc9a4808e00]   uyvy422
  
  [avfoundation @ 0x7fc9a4808e00]   yuyv422
  
  [avfoundation @ 0x7fc9a4808e00]   nv12
  
  [avfoundation @ 0x7fc9a4808e00]   0rgb
  
  [avfoundation @ 0x7fc9a4808e00]   bgr0
  
  [avfoundation @ 0x7fc9a4808e00] Overriding selected pixel format to use uyvy422 instead.
  
  Input #0, avfoundation, from '1:0':
  
    Duration: N/A, start: 116959.473833, bitrate: N/A
  
      Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 1366x768, 30 tbr, 1000k tbn, 1000k tbc
  
      Stream #0:1: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (pcm_f32le (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x7fc9a48e4a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 0x7fc9a48e4a00] profile High, level 3.2
  
  [libx264 @ 0x7fc9a48e4a00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: 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=6 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
  
  Output #0, mov, to 'output.mov':
  
    Metadata:
  
      encoder         : Lavf58.12.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1366x768, q=-1--1, 30 fps, 15360 tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc58.18.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc58.18.100 aac
  
  frame=  892 fps= 30 q=-1.0 Lsize=    1907kB time=00:00:29.74 bitrate= 525.1kbits/s speed=0.991x    
  
  video:1409kB audio:465kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.754444%
  
  [libx264 @ 0x7fc9a48e4a00] frame I:4     Avg QP:18.77  size:288641
  
  [libx264 @ 0x7fc9a48e4a00] frame P:225   Avg QP:24.73  size:   790
  
  [libx264 @ 0x7fc9a48e4a00] frame B:663   Avg QP:33.63  size:   166
  
  [libx264 @ 0x7fc9a48e4a00] consecutive B-frames:  0.8%  0.2%  0.3% 98.7%
  
  [libx264 @ 0x7fc9a48e4a00] mb I  I16..4: 19.3% 10.7% 70.0%
  
  [libx264 @ 0x7fc9a48e4a00] mb P  I16..4:  0.6%  0.0%  0.1%  P16..4:  0.4%  0.0%  0.0%  0.0%  0.0%    skip:98.7%
  
  [libx264 @ 0x7fc9a48e4a00] mb B  I16..4:  0.0%  0.3%  0.0%  B16..8:  1.0%  0.0%  0.0%  direct: 0.0%  skip:98.7%  L0:58.1% L1:41.7% BI: 0.2%
  
  [libx264 @ 0x7fc9a48e4a00] 8x8 transform intra:30.2% inter:6.9%
  
  [libx264 @ 0x7fc9a48e4a00] coded y,uvDC,uvAC intra: 33.5% 34.9% 33.2% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 0x7fc9a48e4a00] i16 v,h,dc,p: 10% 89%  1%  0%
  
  [libx264 @ 0x7fc9a48e4a00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12%  7% 81%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 0x7fc9a48e4a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 47% 13%  2%  3%  1% 12%  1%  9%
  
  [libx264 @ 0x7fc9a48e4a00] i8c dc,h,v,p: 65% 29%  5%  1%
  
  [libx264 @ 0x7fc9a48e4a00] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x7fc9a48e4a00] ref P L0: 74.7%  2.8% 20.6%  1.9%
  
  [libx264 @ 0x7fc9a48e4a00] ref B L0: 56.2% 43.2%  0.7%
  
  [libx264 @ 0x7fc9a48e4a00] ref B L1: 97.7%  2.3%
  
  [libx264 @ 0x7fc9a48e4a00] kb/s:388.06
  
  [aac @ 0x7fc9a5217400] Qavg: 252.357
  
  Exiting normally, received signal 2.

  To note : I added -pix_fmt yuv420 because without it, none of my ffmpeg output seems to be able to run via Quicktime Player. Since this is the only player I use currently, I want my output to run on this player. I noticed there is a log about switching to uyvy422, but I think this is a bug because when I manually add uyvy422, the output cannot be opened at all.