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• avformat/tta : fix crash with corrupted files

  3 février 2015, par wm4

  avformat/tta : fix crash with corrupted files
  av_add_index_entry() can fail, for example because the parameters are
  
  invalid, or because memory allocation fails. Check this ; it can actually
  
  happen with corrupted files.
  The second hunk is just for robustness. Just in case functions like
  
  ff_reduce_index() remove entries. (Not sure if this can actually
  
  happen.)
  Fixes ticket #4294.
  Reviewed-by : Paul B Mahol <onemda@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/tta.c

• FFmpeg :Run one bat after one bat

  16 avril 2018, par AniEncoder

  well I tried to run a .bat file after a file gets downloaded by qBittorrent, the .bat will change font and rename it and move it another folder.

  There are 3 problems
  1. two .bat needed to run...font & rename
  2. the file gets copied in to folders

  I need to add some gap between EngSub, if i do that, it donot shows in the file output

  Change Font
  
  for %%A in (*.mkv) do ffmpeg -i "%%A" -map 0:s:0 "%%A.ass"
  
  
  
      ren *.ass *.txt
  
  
  
      setlocal
  
  
  
      @echo off
  
      call :FindReplace "Open Sans Semibold" "CronosPro-Bold" "*.txt" 
  
      call :FindReplace "&H00020713" "&H0000003B" "*.txt" 
  
      call :FindReplace ",1.7," ",2," "*.txt" 
  
      @echo on
  
  
  
      ren *.txt *.ass
  
  
  
      for %%A in (*.mkv) do ffmpeg -i "%%A" -i "%%A".ass -c copy -map 0:0 -map 0:1 -map 1:0 -metadata:s:s:0 language=eng -disposition:s:0 default -attach CronosPro-Bold.ttf -metadata:s:3 mimetype=application/x-truetype-font "..\720p\%%A"
  
  
  
      del *.ass
  
  
  
      :FindReplace <findstr> <replstr> <file>
  
      set tmp="%temp%\tmp.txt"
  
      If not exist %temp%\_.vbs call :MakeReplace
  
      for /f "tokens=*" %%a in ('dir "%3" /s /b /a-d /on') do (
  
        for /f "usebackq" %%b in (`Findstr /mic:"%~1" "%%a"`) do (
  
          echo(&amp;Echo Replacing "%~1" with "%~2" in file %%~nxa
  
          &lt;%%a cscript //nologo %temp%\_.vbs "%~1" "%~2">%tmp%
  
          if exist %tmp% move /Y %tmp% "%%~dpnxa">nul
  
        )
  
      )
  
  
  
      del %temp%\_.vbs
  
  
  
      :MakeReplace
  
      >%temp%\_.vbs echo with Wscript
  
      >>%temp%\_.vbs echo set args=.arguments
  
      >>%temp%\_.vbs echo .StdOut.Write _
  
      >>%temp%\_.vbs echo Replace(.StdIn.ReadAll,args(0),args(1),1,-1,1)
  
      >>%temp%\_.vbs echo end with
  
  </file></replstr></findstr>

  Rename

  ren  "[HorribleSubs]*.mkv" "[hasu]*.mkv"
  
  ren  *[*  *[1090p][Eng Sub].*
  
  call "1080.bat"
  
  move [hasu]*.* ..\Trash

• MoviePy on EC2 Instance Super Slow

  27 janvier 2020, par connorvo

  No matter what size EC2 instance I use, MoviePy.write_videofile() takes forever.

  I ran it on a t2.micro, c5.large, and c4.2xlarge and they all projected to take the same amount of time ( 7 hours).

  I have a 720mb mp4 file that I am adding a 30mb mp4 file to the beginning of and then putting a text overlay on the entire video (just static text saying the company name in the bottom corner).

  final_video.write_videofile(
  
      f"{FINAL_VIDEO_FILENAME}.mp4", 
  
      fps=60,
  
      codec='libx264', 
  
      audio_codec='aac', 
  
      temp_audiofile=f'{FINAL_VIDEO_FILENAME}_temp_audio.mp4', 
  
      remove_temp=True,
  
      threads = 8, # this was for c4.2xlarge instance
  
  )

  def __get_intro_clip(self, title, size, fps):
  
          clip = ( VideoFileClip('ytbot/intro_video/intro_video.mp4')
  
              .subclip(0,9.5)
  
              .resize(size)
  
              .set_fps(fps)
  
          )
  
  
  
          # make bigger then resize() so stroke works properly
  
          text_clip1 = ( TextClip(f'{TEXTTEXT}',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(bottom=175, opacity=0)
  
              .set_position('center')
  
              .set_duration(4) 
  
              .set_start(1)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
          text_clip2 = ( TextClip(f'presents',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER*0.7,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .set_position('center')
  
              .set_duration(3.5) 
  
              .set_start(1.5)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
          text_clip3 = ( TextClip(title,font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE*self.TITLE_MULTIPLIER,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE*self.TITLE_MULTIPLIER).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(top=175, opacity=0)
  
              .set_position('center')
  
              .set_duration(3) 
  
              .set_start(2)
  
              .fadein(0.25)
  
              .fadeout(0.25)
  
          )
  
  
  
          return CompositeVideoClip([clip, text_clip1, text_clip2, text_clip3]).fadein(0.5)
  
  
  
      def edit_yt_video(self, video_path, name):
  
          video_clips = []
  
  
  
          clip = VideoFileClip(video_path)
  
  
  
          video_clips.append(self.__get_intro_clip(name, clip.size, clip.fps))
  
  
  
          text_clip = ( TextClip('Company: {name}',font='Helvetica-Narrow-Bold',fontsize=self.DEFAULT_TEXT_SIZE,color='white',stroke_color='black',stroke_width=self.DEFAULT_STROKE_SIZE).resize(self.DEFAULT_RESIZE_MULTIPLIER)
  
              .margin(bottom=15, left=15, opacity=0)
  
              .set_position(('left', 'bottom'))
  
              .set_duration(clip.duration)
  
          )
  
  
  
          video_clips.append(CompositeVideoClip([clip, text_clip]).fadeout(0.5).crossfadein(0.5))
  
  
  
          return concatenate_videoclips(video_clips, padding=-1, method='compose')