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• ffmpeg : video + scalled watermark with multiply filter applied

  5 novembre 2018, par PawelN

  after a night of trying different options with applying my watermark on a video, I gave up :).
  What I tried to do is :

  • scale video to desired size (i.e. scale=640x480)
  • add watermark on its top left corner (10:10)
  • marge video with watermark with blend=all_mode='multiply'

  I’ve tried many options and that one I think is almost correct :

  fmpeg -i "${2}${3}" -i ${WMARK} -r 20 -y \
  
               -filter_complex "[0:0]scale=${6}x${7}, setsar=sar=1[a];[a][1:0] overlay=0:0[b];[a][b]blend=all_mode='multiply'"  \
  
              -an -c:v libx264 -crf "${8}" -preset "${9}" -tune "${10}" \
  
              -profile:v high -level 4.0 -movflags +faststart \
  
              "${4}${5}";

  but anyway I am getting errors.

  The nearest what I am looking for is :

  ffmpeg -i "${2}${3}" -i ${WMARK} -r 20 -y \
  
               -filter_complex "[0:v] scale=${6}:${7}[vi];[1:v][vi]scale2ref=(1510/408)*ih/3/sar:ih/3[wm][base];[base][wm]overlay=10:10"  \
  
               -pix_fmt yuv420p \
  
              -an -c:v libx264 -crf "${8}" -preset "${9}" -tune "${10}" \
  
              -profile:v high -level 4.0 -movflags +faststart \
  
              "${4}${5}";

  • Video is scaled to desired resolution ($[6 :$7)
  • watermark is scalled as well
  • ... but I dunno how add blend=all_mode=’multiply’ to it.

  Any ideas guys ?

• ffmpeg with a python wrapper— need help avoiding multiple passes on a file

  19 octobre 2018, par Dean D D

  I would like some help refactoring this code to reduce the amount of passes ffmpeg must make on the file. I figure creating a single compounded ffmpeg command would do the trick, but I am kind of lost.

  def processVideo(videoFile, venueWatermarkFile, companyWatermarkFile, mp3File=None, m4vFile=None, cropH, cropW, resizeH, resizeW):
  
      if mp3File != "" :
  
          subprocess.call('ffmpeg -y -i ' + videoFile + ' -i ' + audio + ' -filter_complex "[0:v]scale=480:ih*480/iw, crop=480:480, loop=loop=3:size=210, trim=duration=15[video]" -shortest -map "[video]" -map "1:a?" -c:a aac new1.mp4', shell=True)
  
      else :
  
          subprocess.call('ffmpeg -y -i ' + videoFile + ' -i ' + audio + ' -vf "scale=480:ih*480/iw, crop=480:480" new1.mp4', shell=True)
  
  
  
      if m4vFile != "":   
  
          subprocess.call('ffmpeg -i ' + videoFile + ' -i ' + m4v + ' -filter_complex " [0:v] scale=480:ih*480/iw, crop=480:480 [bg]; [1:v] chromakey=00FF00:similarity=0.2:blend=0.3 [fg]; [bg][fg] overlay=shortest=1 [v] " -map "[v]" -map "0:a?" -f mp4 new1.mp4', shell=True)
  
  
  
      subprocess.call('ffmpeg -y -i new1.mp4 -i ' + venueWatermarkFile + ' -filter_complex "overlay=0:0" -codec:a copy new2.mp4', shell=True)
  
      subprocess.call('ffmpeg -y -i new2.mp4 -i ' + companyWatermarkFile + ' -filter_complex "overlay=0:0" -codec:a copy new.mp4', shell=True)
  
  
  
      subprocess.call('ffmpeg -y -i new.mp4 new.gif -hide_banner', shell=True)
  
      subprocess.call('ffmpeg -y -i new.mp4 -ss 00:00:00.000 -vframes 1 new.jpg', shell=True)
  
  
  
      os.remove("new1.mp4")
  
      os.remove("new2.mp4")
  
  
  
  
  
  processVideo("video-standard.mp4", "venue-standard.png", "company-standard.png", "clip.mp3", "animation.m4v")

• FFmpeg memory usage

  30 octobre 2018, par mbutan

  I’m using the latest FFmpeg library to blend together 4 different input videos.
  To accomplish it I do some basic "filter_complex" operations for video and "amix" for audios.
  After about 1 minute of processing data, the process is being killed with signal "SIGKILL". Probably out of memory causes this error. To check current memory usage I run "top" tool which shows up in the moment of a crash that 90% of all available memory is allocated.

  My kubernetes pool has available 30GB RAM and 8CPU. It looks strange because FullHd process consumes 30GB memory in 1 minute of work.

  I’m wonder is any way to optimize or limit memory usage.

  FFmpeg version : 4.0.2
  system : Linux
  encoder : h.264
  format : 1920x1080

  FFmpeg output
  https://gist.github.com/mbutan/51f832a99d0edf0b09af934d1934971e

  Code snippet :

            ffmpeg \
  
    -i /tmp/a3ddcc11-9819-4bef-8e8d-156342aa68df.mp4 \
  
    -itsoffset 3 -i /tmp/c87d7e8f-c9e7-4fbe-b845-e6cd6d6ac7bb.mp4 \
  
    -itsoffset 3.199 -i /tmp/250cb6e8-8daf-4c5b-88b3-4b6cfb02834b.mp4 \
  
    -itsoffset 37.52 -i /tmp/24e466e1-c1e0-4797-b88a-09e2a9f5f673.mp4 \
  
    -itsoffset 68.04 -i /tmp/3e0e0e62-82e4-4d6a-881a-119d7c72cf9f.mp4 \
  
    -itsoffset 415.188 -i /tmp/02ca91d5-f0c1-4140-ba12-fa445f09ddf6.mp4 \
  
    -i /tmp/1.png -i /tmp/2.png -i /tmp/3.png \
  
    -y -filter_complex pad=1920:1080:color=black [base];[6] scale=1920:1080 [background];\
  
    [0:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_0];[base][main_0] overlay=90:50:enable=between'(t,0,3)' [tmp_4];\
  
    [1:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_1];[tmp_4][main_1] overlay=90:50:enable=between'(t,3,29.5)' [tmp_6];\
  
    [2:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_2];[tmp_6][main_2] overlay=90:50:enable=between'(t,29.5,37.5)' [tmp_8];\
  
    [3:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_3];[tmp_8][main_3] overlay=90:50:enable=between'(t,37.5,58)' [tmp_10];\
  
    [2:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_4];[tmp_10][main_4] overlay=90:50:enable=between'(t,58,68)' [tmp_12];\
  
    [4:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_5];[tmp_12][main_5] overlay=90:50:enable=between'(t,68,414.5)' [tmp_14];\
  
    [2:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_6];[tmp_14][main_6] overlay=90:50:enable=between'(t,414.5,415.5)' [tmp_16];\
  
    [5:v] scale=1740:980,pad=1740:980:(ow-iw)/2:(oh-ih)/2 [main_7];[tmp_16][main_7] overlay=90:50:enable=between'(t,415.5,416.248)' [tmp_18];\
  
    [tmp_18][background] overlay=0:0 [tmp_19];[7] scale=306.66666666666663:190[user_shadow_0];\
  
    [tmp_19][user_shadow_0] overlay=807:842:enable=between'(t,3.199,30.833)' [shadow_output_0_0];\
  
    [2:v] scale=266.66666666666663:150:force_original_aspect_ratio=decrease, pad=266.66666666666663:150:(ow-iw)/2:(oh-ih)/2:black [user_0_3199];\
  
    [shadow_output_0_0][user_0_3199] overlay=827:862:enable=between'(t,3.199,30.833)' [tmp_23];[7] scale=306.66666666666663:190[user_shadow_0];\
  
    [tmp_23][user_shadow_0] overlay=807:842:enable=between'(t,37.52,57.965)' [shadow_output_0_0];\
  
    [2:v] scale=266.66666666666663:150:force_original_aspect_ratio=decrease, pad=266.66666666666663:150:(ow-iw)/2:(oh-ih)/2:black [user_0_37520];\
  
    [shadow_output_0_0][user_0_37520] overlay=827:862:enable=between'(t,37.52,57.965)' [tmp_27];[7] scale=306.66666666666663:190[user_shadow_0];\
  
    [tmp_27][user_shadow_0] overlay=807:842:enable=between'(t,68.04,414.648)' [shadow_output_0_0];\
  
    [2:v] scale=266.66666666666663:150:force_original_aspect_ratio=decrease, pad=266.66666666666663:150:(ow-iw)/2:(oh-ih)/2:black [user_0_68040];\
  
    [shadow_output_0_0][user_0_68040] overlay=827:862:enable=between'(t,68.04,414.648)' [tmp_31];\
  
    [0:v] scale=1920:1080 [intro];[tmp_31][intro] overlay=0:0:enable=between'(t,0,3.25)' [tmp_32];\
  
    [tmp_32][0:v] overlay='if(lte((t-3.25)*18432,w),(t-3.25)*18432,w)':0:enable=between'(t,3.25,4.45)' [tmp_33];[5:v] scale=1920:1080 [end];\
  
    [tmp_33][end] overlay=0:0:enable=between'(t,414.75,418)' [tmp_34];\
  
    [tmp_34][5:v] overlay='if(lte((t-418)*18432,w),(t-418)*18432,w)':0:enable=between'(t,418,419.2)' [outVideo];\
  
    [0:a]adelay=1|1 [audio_0];\
  
    [1:a]adelay=3001|3001 [audio_1];\
  
    [2:a]adelay=3200|3200 [audio_2];\
  
    [3:a]adelay=37521|37521 [audio_3];\
  
    [4:a]adelay=68041|68041 [audio_4];\
  
    [5:a]adelay=415189|415189 [audio_5];\
  
    [audio_0][audio_1][audio_2][audio_3][audio_4][audio_5] amix=inputs=6:duration=longest \
  
    [outAudio] -map [outVideo] -map [outAudio] -framerate 30 -g 60 -video_size 1920x1080 -vcodec libx264 -acodec libfdk_aac -profile:a aac_he -b:a 192k -ac 2 -ar 44100 -max_muxing_queue_size 9999 -threads 0 -strict experimental -preset fast /tmp/53a89b44-fd56-4c5b-adb9-a5695d52e5d2_output.mp4