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• os.walk returns file names but when trying to modify the files it says directory not found

  13 avril 2021, par epWILL

  Im trying to walk through music folder and find all sub folders in it and convert the mp4's in all folders to wav. It prints out the correct file name but when it trys to convert it says directory not found.

  


  I would like to us os.walk to go through all folders instead going through 1 folder and changing the name in the code for the other folders

  


  This code works for one folder

  


  import os
import ffmpeg
import time

path = './musicTest/'


os.chdir(path)
aud_files = os.listdir()
count = 0
count2 = 0


    ##convert mp4 to wav
for file in aud_files:
    os.system('ffmpeg -i "{}" -acodec pcm_s16le -ac 1 -ar 16000 output-{}.wav'.format(file, count))
    count = count + 1
    os.remove(file)


  


  this is the code that gives me no directory found when using os.walk but it prints the file name

  


  import os
from pydub import AudioSegment
import ffmpeg

path = "./musicTest/"
count = 0

for i, (root, dirs, files) in enumerate(os.walk(path)):
   if root is not path:
      for file in files:
           print(file)
           os.system('ffmpeg -i "{}" -acodec pcm_s16le -ac 1 -ar 16000 output-{}.wav'.format(file, count))
           count = count + 1


  


• subprocess call of ffmpeg returns negative value

  11 juin 2019, par Zak44

  Here is the original command line call that works at shell :

  ffmpeg -i /Users/abc/Desktop/Test/Full_Mov.mov -vf "drawtext=fontfile=/System/Library/Fonts/Keyboard.ttf: text='SCENE BLAH BLAH - %{frame_num}': start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: fontsize=20: box=1: boxcolor=black: boxborderw=5","format=yuv420p" -f segment -segment_frames 123 -reset_timestamps 1 -c:a copy -map 0 "/Users/abc/Desktop/Test/%03d_test40.mov"

  Getting a negative value when trying to run ffmpeg via subprocess, causing it to fail and not process. I’ve even tried dumbing down the call to just run ffmpeg by itself with no arguments, and it still returns a negative value.

  import subprocess
  
  ffmpeg = "/usr/local/bin/ffmpeg"
  
  source = "/Users/abc/Desktop/Test/Full_Mov.mov"
  
  destination = "/Users/abc/Desktop/Test/%03d_test40.mov"
  
  cmd = "%s -i %s -vf \"drawtext=fontfile=/System/Library/Fonts/Keyboard.ttf: text='SCENE BLAH BLAH - %%{frame_num}': start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=5\",\"format=yuv420p\" -f segment -segment_frames 123 -reset_timestamps 1 -c:a copy -map 0 \"%s\"" % (ffmpeg, source, destination)
  
  log("ffmpeg cmd: %s" % cmd)
  
  log(subprocess.check_output(cmd, shell=True))

  When running full command :

  CalledProcessError: Command '/usr/local/bin/ffmpeg -i /Users/abc/Desktop/Full_Mov.mov -vf "drawtext=fontfile=/System/Library/Fonts/Keyboard.ttf: text='SCENE BLAH BLAH - %{frame_num}': start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=5","format=yuv420p" -f segment -segment_frames 318 -reset_timestamps 1 -c:a copy -map 0 "/Users/abc/Desktop/Test/%03d.tmp.mov"' returned non-zero exit status -8
  
      raise CalledProcessError(retcode, cmd, output=output)

  When running just ffmpeg no arguments :

  CalledProcessError: Command '/usr/local/bin/ffmpeg' returned non-zero exit status 1
  
      raise CalledProcessError(retcode, cmd, output=output)

  Latest output with suggested changes below :

  subprocess.CalledProcessError: Command '['/usr/local/bin/ffmpeg', '-i', '/Users/szaharak/Desktop/Flix_Test/ep888_sq66_main_mov_2019_05_20_14_15.mov', '-vf', 'drawtext=fontfile=/System/Library/Fonts/Keyboard.ttf:', 'text=SCENE BLAH BLAH - %%{frame_num}:', 'start_number=1:', 'x=(w-tw)/2:', 'y=h-(2*lh):', 'fontcolor=black:', 'fontsize=20:', 'box=1:', 'boxcolor=white:', 'boxborderw=5', 'format=yuv420p', '-f', 'segment', '-segment_frames', '123', '-reset_timestamps', '1', '-c:a', 'copy', '-map', '0', '/Users/szaharak/Desktop/Flix_Test/%03d_test40.mov']' returned non-zero exit status 1
  
  
  
  [NULL @ 0x7f88c3012200] Unable to find a suitable output format for 'text=SCENE BLAH BLAH - %%{frame_num}:'
  
  text=SCENE BLAH BLAH - %%{frame_num}:: Invalid argument

  And here is latest...

      >>> rc = subprocess.check_call(cmd)
  
  ffmpeg version N-93891-ge1839283bc-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
  
  
  
    libavutil      56. 28.100 / 56. 28.100
  
    libavcodec     58. 52.102 / 58. 52.102
  
    libavformat    58. 27.103 / 58. 27.103
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 53.101 /  7. 53.101
  
    libswscale      5.  4.101 /  5.  4.101
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/szaharak/Desktop/Flix_Test/ep888_sq66_main_mov_2019_05_20_14_15.mov':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 537199360
  
      compatible_brands: qt  
  
      creation_time   : 2019-05-14T17:58:24.000000Z
  
      com.apple.quicktime.player.movie.audio.gain: 1.000000
  
      com.apple.quicktime.player.movie.audio.treble: 0.000000
  
      com.apple.quicktime.player.movie.audio.bass: 0.000000
  
      com.apple.quicktime.player.movie.audio.balance: 0.000000
  
      com.apple.quicktime.player.movie.audio.pitchshift: 0.000000
  
      com.apple.quicktime.player.movie.audio.mute: 
  
      com.apple.quicktime.player.movie.visual.brightness: 0.000000
  
      com.apple.quicktime.player.movie.visual.color: 1.000000
  
      com.apple.quicktime.player.movie.visual.tint: 0.000000
  
      com.apple.quicktime.player.movie.visual.contrast: 1.000000
  
      com.apple.quicktime.player.version: 7.6.6 (7.6.6)
  
      com.apple.quicktime.version: 7.7.3 (2943.14) 0x7738000 (Mac OS X, 10.11.6, 15G22010)
  
    Duration: 00:01:12.67, start: 0.000000, bitrate: 23379 kb/s
  
      Stream #0:0(eng): Video: mjpeg (Baseline) (jpeg / 0x6765706A), yuvj422p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 72:72 DAR 16:9], 21838 kb/s, 24 fps, 24 tbr, 24k tbn, 24k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-05-14T17:58:24.000000Z
  
        handler_name    : Apple Video Media Handler
  
        encoder         : Photo - JPEG
  
      Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s16, 1536 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-05-14T17:58:24.000000Z
  
        handler_name    : Apple Sound Media Handler
  
  [NULL @ 0x7f8ddc8ce200] Unable to find a suitable output format for 'text=SCENE BLAH BLAH - %{frame_num}: start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=5: format=yuv420p'
  
  text=SCENE BLAH BLAH - %{frame_num}: start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=5: format=yuv420p: Invalid argument
  
  Traceback (most recent call last):
  
    File "<stdin>", line 1, in <module>
  
    File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 190, in check_call
  
      raise CalledProcessError(retcode, cmd)
  
  subprocess.CalledProcessError: Command '['/usr/local/bin/ffmpeg', '-i', '/Users/szaharak/Desktop/Flix_Test/ep888_sq66_main_mov_2019_05_20_14_15.mov', '-vf', 'drawtext=fontfile=/System/Library/Fonts/Keyboard.ttf:', 'text=SCENE BLAH BLAH - %{frame_num}: start_number=1: x=(w-tw)/2: y=h-(2*lh): fontcolor=black: fontsize=20: box=1: boxcolor=white: boxborderw=5: format=yuv420p', '-f', 'segment', '-segment_frames', '123', '-reset_timestamps', '1', '-c:a', 'copy', '-map', '0', '/Users/szaharak/Desktop/Flix_Test/%03d_test40.mov']' returned non-zero exit status 1
  
  </module></stdin>

• Revision 1161055129 : Be consistent with SAD values SAD returns unsigned values. Make all the declara

  26 juin 2012, par Johann

  Changed Paths : Modify /test/sad_test.cc Modify /vp8/common/mfqe.c Modify /vp8/common/rtcd_defs.sh Modify /vp8/common/sad_c.c Modify /vp8/common/variance.h Modify /vp8/common/x86/sad_sse2.asm Modify /vp8/encoder/mcomp.c Modify /vp8/encoder/rdopt.c Be consistent with SAD (...)