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• Creating video from list of images using ffmpeg

  13 août 2019, par haseeb

  Summary

  From given code, second function taking UI values and passing to first one. from log, first two lines shows command list and command string.

  What’s irritating me is, if I copied second line from log (dos cmd) and paste it in a cmd prompt, it works successfully and produces video correctly. but running it via gui subprocess, errors out.

  Task Description

  Directory contains thousand of images each after few minutes of a construction project. I need to create a video from data (images) per day basis. I have successfully extracted list of images, etc, and have data.

  utils.py :

  def framesToVideoViaCount(srcFile,outputFile,start,count,rate):
  
      # ffmpeg -start_number 1 -i test_%04d.png -vframes 100 -vcodec mpeg4 test.mp4
  
      # "C:\\Users\\lalat\\Desktop\\03008427633\\output_%04d.png"
  
      # ffmpeg -start_number 50 -i "C:\\Users\\lalat\\Desktop\\03008427633\\output_%04d.png" -vframes 200 -vcodec mpeg4 "C:\\Users\\lalat\\Desktop\\day1.mp4"
  
      command = [ 'ffmpeg',
  
                  # '-loglevel', 'fatal',
  
                  '-r %d' %(rate),
  
                  '-start_number %d' %(start) ,
  
                  '-i "%s"' %(srcFile),
  
                  '-vframes %d' %(count),
  
                  '-vcodec mpeg4' ]
  
      # command.append ('fps=%d' % (fps))
  
      command.append (outputFile)
  
      print ("COMMAND: " , command)
  
      print ("DOS CMD: ", ' '.join(command))
  
      ffmpeg = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE )
  
      out, err = ffmpeg.communicate()
  
      if(err) : print('error',err); return None;
  
      print (out)

  Actual GUI function call in tk gui app :

  def approachByCount(self):
  
      tdate = datetime(year=int(self.fyear.get()), month=int(self.fmonth.get()), day=int(self.fdate.get()))
  
      # now = datetime.datetime.now()
  
      outputName = str(tdate.strftime("%Y%m%d")) + ".txt"
  
      outputVid = str(tdate.strftime("%Y%m%d")) + ".mp4"
  
      files = os.listdir(self.userDir)
  
      selected = []
  
      for afile in files:
  
          afile = os.path.join(self.userDir,afile)
  
          sdate = datetime.fromtimestamp(os.path.getmtime(afile))
  
          if sdate.date() == tdate.date():
  
              selected.append(afile)
  
      # get first file name
  
      srcfilename = os.path.basename(selected[0])
  
      srcfilename,ext = srcfilename.split(".")
  
      filename,pad = srcfilename.split("_")
  
      srcfilename = os.path.join(self.userDir,filename+"_%0"+str(len(pad))+"d."+ext)
  
      start = int(pad)
  
      count = len(selected)
  
      utils.framesToVideoViaCount(srcfilename,outputVid,start,count,25)

  ERROR log

  COMMAND:  ['ffmpeg', '-r 25', '-start_number 1', '-i "C:\\Users\\lalat\\Desktop\\03008427633\\output_%04d.png"', '-vframes 382', '-vcodec mpeg4', '20190810.mp4']
  
  DOC CMD:  ffmpeg -r 25 -start_number 1 -i "C:\Users\lalat\Desktop\03008427633\output_%04d.png" -vframes 382 -vcodec mpeg4 20190810.mp4
  
  
  
  error b"ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers\r\n
  
  built with gcc 8.2.1 (GCC) 20181017\r\n
  
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth\r\n
  
  libavutil      56. 22.100 / 56. 22.100\r\n
  
  libavcodec     58. 35.100 / 58. 35.100\r\n
  
  libavformat    58. 20.100 / 58. 20.100\r\n
  
  libavdevice    58.  5.100 / 58.  5.100\r\n
  
  libavfilter     7. 40.101 /  7. 40.101\r\n
  
  libswscale      5.  3.100 /  5.  3.100\r\n
  
  libswresample   3.  3.100 /  3.  3.100\r\n
  
  libpostproc    55.  3.100 / 55.  3.100\r\n
  
  Unrecognized option 'r 25'.\r\n
  
  Error splitting the argument list: Option not found\r\n"

• creating video from list of images using python and ffmpeg

  13 août 2019, par haseeb

  summary

  from given code, second function taking UI values and passing to first one. from log, first two lines shows command list and command string.

  whats irritating me is, if i copied second line from log(dos cmd) and paste it in a cmd prompt, it works successfully and produces video correctly. but running it via gui subprocess, errors out.

  TASK DESCRIPTION

  directory contains thousand of images each after few minutes of a contruction project. i need to create a video from data (images) per day basis.
  i have successfully extracted list of images etc and have data

  def framesToVideoViaCount(srcFile,outputFile,start,count,rate):
  
      # ffmpeg -start_number 1 -i test_%04d.png -vframes 100 -vcodec mpeg4 test.mp4
  
      # "C:\\Users\\lalat\\Desktop\\03008427633\\output_%04d.png"
  
      # ffmpeg -start_number 50 -i "C:\\Users\\lalat\\Desktop\\03008427633\\output_%04d.png" -vframes 200 -vcodec mpeg4 "C:\\Users\\lalat\\Desktop\\day1.mp4"
  
      command = [ 'ffmpeg',
  
                  # '-loglevel', 'fatal',
  
                  '-r %d' %(rate),
  
                  '-start_number %d' %(start) ,
  
                  '-i "%s"' %(srcFile),
  
                  '-vframes %d' %(count),
  
                  '-vcodec mpeg4' ]
  
      # command.append ('fps=%d' % (fps))
  
      command.append (outputFile)
  
      print ("COMMAND: " , command)
  
      print ("DOS CMD: ", ' '.join(command))
  
      ffmpeg = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE )
  
      out, err = ffmpeg.communicate()
  
      if(err) : print('error',err); return None;
  
      print (out)

  Actual GUI function call

  def approachByCount(self):
  
          tdate = datetime(year=int(self.fyear.get()), month=int(self.fmonth.get()), day=int(self.fdate.get()))
  
          # now = datetime.datetime.now()
  
          outputName = str(tdate.strftime("%Y%m%d")) + ".txt"
  
          outputVid = str(tdate.strftime("%Y%m%d")) + ".mp4"
  
          files = os.listdir(self.userDir)
  
          selected = []
  
          for afile in files:
  
              afile = os.path.join(self.userDir,afile)
  
              sdate = datetime.fromtimestamp(os.path.getmtime(afile))
  
              if sdate.date() == tdate.date():
  
                  selected.append(afile)
  
          # get first file name
  
          srcfilename = os.path.basename(selected[0])
  
          srcfilename,ext = srcfilename.split(".")
  
          filename,pad = srcfilename.split("_")
  
          srcfilename = os.path.join(self.userDir,filename+"_%0"+str(len(pad))+"d."+ext)
  
          start = int(pad)
  
          count = len(selected)
  
          utils.framesToVideoViaCount(srcfilename,outputVid,start,count,25)

  ERROR log
  COMMAND : [’ffmpeg’, ’-r 25’, ’-start_number 1’, ’-i "C :\Users\lalat\Desktop\03008427633\output_%04d.png"’, ’-vframes 382’, ’-vcodec mpeg4’, ’20190810.mp4’]
  DOC CMD : ffmpeg -r 25 -start_number 1 -i "C :\Users\lalat\Desktop\03008427633\output_%04d.png" -vframes 382 -vcodec mpeg4 20190810.mp4
  error b"ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers\r\n built with gcc 8.2.1 (GCC) 20181017\r\n configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libmfx —enable-amf —enable-ffnvcodec —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth\r\n libavutil 56. 22.100 / 56. 22.100\r\n libavcodec 58. 35.100 / 58. 35.100\r\n libavformat 58. 20.100 / 58. 20.100\r\n libavdevice 58. 5.100 / 58. 5.100\r\n libavfilter 7. 40.101 / 7. 40.101\r\n libswscale 5. 3.100 / 5. 3.100\r\n libswresample 3. 3.100 / 3. 3.100\r\n libpostproc 55. 3.100 / 55. 3.100\r\nUnrecognized option ’r 25’.\r\nError splitting the argument list : Option not found\r\n"

• How to generate m3e8 file from mp4 files (Not from list)

  4 août 2019, par David Najaryan

  I need to generate m3e8 file from mp4 videos

  I have code to do it

  ffmpeg -i "D:/12.mp4" -profile:v baseline -level 3.0 -s 640x360 - 
  
  start_number 0 -hls_time 10 -hls_list_size 0 -f hls -hls_flags append_list 
  
  "D:/testff/index.m3e8"

  But when i run script to stream this file to facebook i get many errors

  ffmpeg -re -i "D:/testff/index.m3e8" -acodec libmp3lame -ar 44100 -b:a 
  
  128k -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 6000k -vb 
  
  400k -maxrate 1500k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 
  
  30 -f flv "rtmps://live-api-s.facebook.com:443/rtmp/1370514463086508? 
  
  s_bl=1&s_ps=1&s_sml=0&s_sw=0&s_vt=api-s&a=AbwMpTgugervvv6i"

  P.S. I need to dynamically add video files

  Thanks