Recherche avancée

Sur d’autres sites (6043)

• ffmpeg does not draw text

  4 septembre 2016, par Michael Heuberger

  hope one of you can tell me why this ffmpeg command of mine does not draw the desired text. the produced video doesn’t have it. here you go :

  ffmpeg -f image2 -thread_queue_size 64 -framerate 15.1 -i /home/michael-heuberger/binarykitchen/code/videomail.io/var/local/tmp/clients/videomail.io/11e6-723f-d0aa0bd0-aa9b-f7da27da678f/frames/%d.webp -y -an -vcodec libvpx -filter:v drawtext=fontfile=/home/michael-heuberger/binarykitchen/code/videomail.io/src/assets/fonts/Varela-Regular.ttf:text=www.videomail.io:fontsize=180:fontcolor=white:x=150:y=150:shadowcolor=black:shadowx=2:shadowy=2 -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -crf 12 -deadline realtime -cpu-used 4 -pix_fmt yuv420p -loglevel warning -movflags +faststart /home/michael-heuberger/binarykitchen/code/videomail.io/var/local/tmp/clients/videomail.io/11e6-723f-d0aa0bd0-aa9b-f7da27da678f/videomail_preview.webm

  the crucial part is this video filter :

  -filter:v drawtext=fontfile=/home/michael-heuberger/binarykitchen/code/videomail.io/src/assets/fonts/Varela-Regular.ttf:text=www.videomail.io:fontsize=180:fontcolor=white:x=150:y=150:shadowcolor=black:shadowx=2:shadowy=2

  does it seem correct to you ? if so, then why am i not seeing any text in the videomail_preview.webm video file ?

  using ffmpeg v2.8.6 here with —enable-libfreetype, —enable-libfontconfig and —enable-libfribidi enabled.

  furthermore, the above command has been produced with fluent-ffmpeg.

  so, any ideas ?

• Generate timestamped video ?

  22 octobre 2013, par user49411

  I just need to generate a 12 hour video (from scratch) with a counter in it, to test something. I can get a timestamp ok by douing this

  ffmpeg -loop 1 -i test_card.png -c:v libx264 -t 30 -pix_fmt yuv420p out.mp4
  
  
  
  ffmpeg -i out.mp4 -vf "drawtext=fontfile=/Library/Fonts/Andale Mono.ttf: timecode='00\:00\:00\:00': r=25: \
  
  x=(w-tw)/2: y=h-(2*lh): fontcolor=white: fontsize=25: box=1: boxcolor=0x00000000@1" -an -y out.mp4

  This works, but i don't want a timestamp, I want a counter going down ?

  Secondly, the former seems inefficient. I need a 12 hour video to be made in about 15 mins ?

• Converting bat to bash script [on hold]

  15 juillet 2019, par dezxela

  Please help me with coversion this script from here to bash :
  https://stackoverflow.com/a/38291960/11786146

  This part of the code seems to be reconciled in me, but I’m not sure that it’s correct :

  #  path to ffmpeg
  
  export  ffmpeg='/home/user/bin'
  
  #  source movies from
  
  export  movieSource='/mnt/dev1/radio/Masha'
  
  #  tmp dir
  
  export  tmpDir='/mnt/dev1/radio/Masha'
  
  
  
  
  
  #  setup positon, color, background, font for the text overlays
  
  #  filterComplex, quotes have to be escaped! -> \"
  
  #  BITC - Burned In Time Code
  
  export  filterComplexTimecode='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': timecode='10\:00\:00\:00': timecode_rate=24: x=(w-tw)/2: y=h-(1*lh)-3: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4'
  
  #  Date
  
  export  filterComplexDate='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': text='%{localtime\:%X}': x=(w-tw-3): y=h-(1*lh)-3: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4'
  
  #  Shotname
  
  export  filterComplexShotname='drawtext=fontfile='/usr/share/fonts/truetype/freefont/FreeSerif.ttf': x=0: y=h-(1*lh)+1: fontsize=20: fontcolor=white@0.4: box=1: boxcolor=0x00000000@0.4: boxborderw=4:'
  
  
  
  #  create a list of all files
  
  find "$movieSource" -name "*.mp4" -type f | sort -R | while read j; do echo "file '$j'" >> $tmpDir/filelist.txt; done
  
  
  
  echo filename, durationInSeconds > $tmpDir/fileNameDuration.txt
  
  for file in $movieSource/*.mp4; do
  
    #  Reset current duration to 0 (zero) for each loop
  
    export  curDuration=0
  
    #  get the filename without file extenion
  
    export  fileName=${file##*/}
  
    #  get the duration of a single clip
  
    #  and write it to a tmp textfile
  
    $ffmpeg/ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file" > $tmpDir/fileTempDuration.txt
  
    #  read the textfile again into a variable
  
   read -p  < $tmpDir/fileTempDuration.txt last curDuration
  
  
  
    #  write the filename and the duration to a new list of all files
  
  echo $fileName,$curDuration >> $tmpDir/fileNameDuration.txt ;done
  
  
  
  #  concate a filter complex string for ffmpeg with all clipnames as textlayer with a inpoint and outpoint
  
  export  filterComplexShotnameCombined=
  
  #  floating numbers are not supported by batch, so we need to work-around that
  
  source  :IntAsFP b=0.000000
  
  for i in $tmpDir/fileNameDuration.txt; do
  
    source  :IntAsFP a=$j
  
    source  :IntToFP inPoint=$b 6
  
    export  c=$(expr a + b)
  
    export   b=c
  
    source  :IntToFP outPoint=$c 6
  
    #  just to check whats going on...
  
    echo name: $i   duration: $j   inPoint: $inPoint   outPoint: $outPoint
  
    export  filterComplexShotnameCombined='$filterComplexShotnameCombined, $filterComplexShotname text=$i: enable=between(t\,$inPoint\,$outPoint^^^)';done