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• How to replace the text in the filename and move the file to different directory

  2 octobre 2019, par Hugo Shih

  I’m a newbie to this bash scripting and I’m writing a script with ffmpeg to help my production more efficient. I think I put two questions at once and hope it won’t be confused :

  Here is my script :

  #!/bin/bash
  
  
  
  for file in *.mov
  
  do
  
    ffmpeg  -probesize 50M -analyzeduration 100M -ss 00:00:10.00 -i "$file" -map 0:0 -map 0:1 - 
  
    c:a aac_at -ab 256k -ar 48000 -ac 2 -strict -2 -async 1 -c:v libx264 -crf 20 -r 24000/1001 
  
    -s 1920x1080 -aspect 16:9 -pix_fmt yuv420p -preset fast -partitions 
  
    partb8x8+partp4x4+partp8x8+parti8x8 -b-pyramid 1 -weightb 1 -8x8dct 1 -fast-pskip 1 - 
  
    direct-pred 1 -coder ac -trellis 1 -motion-est hex -subq 6 -me_range 16 -bf 3 -b_strategy 1 
  
    -sc_threshold 40 -keyint_min 24 -g 48 -qmin 3 -qmax 51 -qdiff 4 -metadata creation_time=now 
  
    -sn -t 00:01:00.02 -y "${file%.*}_H264_1080".mov
  
  done

  Basically what I’m tyring to do is taking a "Movie_ProRes_1080.mov" file and make it as a H264 and rename it as "Movie_H264_1080.mov". The way I work around is Export the file as "Movie" and let it added behind which is really not what I want because I need to export another file to fit this purpose. The main goal is I can use the "Movie_ProRes_1080.mov" convert it to "Movie_H264_1080".

  Also, from the script, it rendered out to the same location. Would it be possible to render to a different directory ? Like source at /Users/editor/source, but render out at /Users/editor/output.

• Don't work some keys of coding in FFmpeg

  17 décembre 2015, par Plush

  <?
  
      // $videoPath — path to the video file
  
      // $newVideoPath — path of the resultant video file
  
  
  
      exec('/usr/bin/ffmpeg -i ' . $videoPath . ' -vcodec libx264 -profile high -level 3.1 -s 1280x720 -sar 1:1 -aspect 16:9 -b:v 3800K -dct8x8 1 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -refs 5 -fast-pskip 0 -subq 9 -me_method full -me_range 32 -mbd rd -flags +mv4+qpel -g 40 -keyint_min 4 -bf 2 -direct-pred 1 -b_strategy 2 -b-pyramid 1 -weightb 1 -weightp 2 -coder 1 -qmin 0 -qdiff 1 -acodec libfaac -ac 2 -ar 48000 -ab 192K ' . $newVideoPath);

  I defined keys which don’t work :
  - dct8x8 1 - partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 (coding of video doesn’t work)
  - me_method full (the video file is coded, but it isn’t started in a player)
  FFmpeg version : 1.2.6

  How to involve an adaptive method of transformations 8x8 in an I-shot and to set a method of an assessment of the movement of full pixel as full ?

• Merge commit ’b16e9b9ac9db449cae2242767dd3c3fc309357c4’

  29 juin 2016, par Clément Bœsch

  Merge commit ’b16e9b9ac9db449cae2242767dd3c3fc309357c4’
  * commit ’b16e9b9ac9db449cae2242767dd3c3fc309357c4’ :
  
    h264 : move initialising the explicit pred weight table for MBAFF
  Merged-by : Clément Bœsch <clement@stupeflix.com>
  

  • [DH] libavcodec/h264_parse.c
  • [DH] libavcodec/h264_refs.c