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• How to correctly specify the path to a file in -vf media ?

  15 juillet 2024, par Wintreist

  Good afternoon, please, I really need help.
I'm putting a watermark on the video :

  


  with tempfile.TemporaryFile("wb", delete=False, suffix=".png") as watermark_file:
    watermark_file.write(buff.read())
(
    ffmpeg
    .input(str(path))
    .output(
        os.environ.get("TEMP")+f"\\{uuid.hex}_{path.name}",
        vf=f"movie='{watermark_file.name}' [watermark]; [in][watermark] overlay='{overlay}' [out]"
    )
    .global_args('-copyts')
    .run()
)


  


  In a temporary folder, I create a file in which I write a watermark from io.BytesIO
using the ffmpeg-python library, I do not work directly with the console.

  


  The problem is that when running .run() to the console outputs the following :

  


  [Parsed_movie_0 @ 0000011b21b3e300] Failed to avformat_open_input 'C'
[AVFilterGraph @ 0000011b21b4d4c0] Error initializing filters
[vost#0:0/libvpx-vp9 @ 0000011b23a07500] Error initializing a simple filtergraph
Error opening output file C:\Users\smeta\AppData\Local\Temp\5e5a695966cf4d728edbd7f39c509d0e_000.webm.
Error opening output files: No such file or directory


  


  But if I copy a watermarked file from temp and upload it to the workspace :
vf=f"movie='{'test.png'}' [watermark]; [in][watermark] overlay='{overlay}' [out]"
then everything works as it should. I.e. apparently there is a problem with the path to the watermark, and I do not understand what to do.
I ask for help

  


• ffmpeg convert video in a path with different name

  16 mars 2019, par tour travel

  Using ffmpeg in php with shell_exec and want to convert video in a path that different with where script is run. php script is in /s/m/video.php :

  <?php
  
  if(isset($_GET["videoTools"])){
  
  
  
      $user = $_GET["user"];
  
      $uid = $_GET["uid"];
  
      $vid = $_GET["vid"];
  
  
  
      $uploaddir = '/seller/uploads/'.$user.'/'.$uid.'/';
  
  
  
      echo shell_exec('ffmpeg -i '.$uploaddir.$vid.'-vid.mp4 -i /s/m/logo.png \
  
      -filter_complex "hflip[flipped];[flipped]overlay=x=20:y=20" \
  
      -s 480x320 -acodec aac -strict -2 -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 \
  
      -strict -2 '.$uploaddir.$vid.'-vid-resized.mp4');
  
  }
  
  ?>

  And this script called by ajax in /s/a/index.php :

      $.ajax({
  
          url: "/s/m/video.php?videoTools",
  
          type: "GET",
  
          data: {vid: json[0], uid: json[1], user: json[2]},
  
          success: function(data){
  
           // success
  
          }
  
      });

  And for example I want to convert video in this path /s/uploads/91/768/2019-2-2_668-vid.mp4

  Problems :

  This not working, because look like ffmpeg not find video and logo in a path / Also look like ffmpeg not accepet video with - or _ or etc.

  No related error log, but video not generated and script not working. Any idea ?

  [Sat Mar 16 04:09:26.934114 2019] [php7:warn] [pid 25486] [client
  85.133.232.199:34756] PHP Warning : Unknown : open_basedir restriction in effect. File(/var/cpanel/php/sessions/ea-php72) is not within the
  allowed path(s) :
  (/home/pedram/ :/tmp :/var/tmp :/usr/local/lib/php/ :/usr/local/php72/lib/php/)
  in Unknown on line 0

• Revision a5d930e464 : vp10 : don't reset contextual skip flag if block has no coefficients. The implic

  8 septembre 2015, par Ronald S. Bultje

  Changed Paths :
   Modify /vp10/common/blockd.h

  
   Modify /vp10/common/loopfilter.c

  
   Modify /vp10/decoder/decodeframe.c

  
  
  vp10 : don’t reset contextual skip flag if block has no coefficients.

  The implicitly changed value would be used for contextualizing future
  skip flags of neighbour blocks (bottom/right), which is certainly not
  what was intended. The original code stems from vp8, and was useful
  in cases where coding of the skip flag was disabled. In vp9, the skip
  flag is always coded. The result of this change is that for bitstream
  parsing purposes, decoding of the skip flag becomes independent of
  decoding of block coefficients.

  See issue 1014.

  Change-Id : I8629e6abe76f7c1d649f28cd6fe22a675ce4a15d