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• avcodec/evc : Reference to ISO_IEC_23094-1-2020 document section for EVC_MAX_APS_COUNT...

  18 avril 2024, par Dawid Kozinski

  avcodec/evc : Reference to ISO_IEC_23094-1-2020 document section for EVC_MAX_APS_COUNT enum has been fixed
  Signed-off-by : Dawid Kozinski <d.kozinski@samsung.com>
  

  • [DH] libavcodec/evc.h

• avfilter/vf_libplacebo : don't force dovi frames to bt.2020-ncl

  30 octobre 2023, par Niklas Haas

  avfilter/vf_libplacebo : don't force dovi frames to bt.2020-ncl
  This is at odds with the YUV matrix negotiation API, in which such
  
  dynamic changes in YUV encoding are no longer easily possible. There is
  
  also no really strong motivating reason to do this, since the choice of
  
  YUV matrix is essentially arbitrary and not actually related to the
  
  Dolby Vision decoding process.
  

  • [DH] libavfilter/vf_libplacebo.c

• How to add watermark text and image on video in ffmpeg in flutter

  29 août 2022, par Jatin

  I have tried so many commands from stackoverflow and manny other resources but no any single command worked.

  


  Most of the time I got error

  


  


  Error : No such filter : 'drawtext'

  


  Error : initializing complex filters.

  


  FATAL : Invalid argument

  


  


  commands that I have used but did not work :

  


  

  • $path_of_file = input video path (most preferred .mp4)

  


  • $fullTemporaryPathImage = image path (can be watermarked_logo.png)

  


  • $fullTemporaryPath = font file path (can be .ttf , .otf) $filePath1

  


  • $filePath1 = output video file path (most preferred .mp4)

  


  


  Note : please provide path as per you directory.

  


   - ""-i $path_of_file -vf "
              "[in]drawtext=text='StackOverflow':x=(w-text_w)-(w*0.04):y=(h-text_h)-(w*0.04)[out]"
              " -codec:a copy $filePath1""
 - "Command -i $path_of_file -filter_complex drawtext=fontfile=$fullTemporaryPath:text='Hello' $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex "
      "[0:v][1:v]overlay=10:10,drawtext=fontfile=fullTemporaryPath:text='Hello World':fontcolor=white@1.0:fontsize=30:y=h/2:x=0:enable='between(t,6,20)'"
      " -c:a copy -movflags +faststart output.mp4"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex " +
          "[0:v][1:v]overlay=10:10,drawtext=text='Hello'" +
          " -c:a copy -movflags +faststart $filePath1"
 - "-i $path_of_file -i -vf subtitle.$subtitlePath -c copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $subtitlePath -c copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $subtitlePath -c:v libx264 -ar 44100 -ac 2 -ab 128k -strict -2 -c:s mov_text -map 0 -map 1 $filePath1"
 - "-ss 00:00:15 -t 5 -i $path_of_file -vf drawtext=\"fontfile=$fullTemporaryPath:fontsize=200:fontcolor=white:box=1:boxcolor=black@0.8:x=w-tw-100:y=100: text='This'\" $filePath1"
 - "-i $path_of_file -f srt -i $subtitlePath -map 0:0 -map 0:1 -map 1:0 -c:v copy -c:a copy -c:s mov_text $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v] setpts=PTS-STARTPTS [v01] [1:v] setpts=PTS-STARTPTS [gradient] color=black@0:duration=8 format=yuv420p[txtbase][txtbase][v01]scale2ref[txtbase][v01][txtbase] drawtext=fontfile=$fullTemporaryPath:text='Test':fontcolor=white:fontsize=54:shadowcolor=black@0.6:shadowx=4:shadowy=2:box=1:boxcolor=a60000@0.4:boxborderw=10:x='310':y='350' fade=t=in:st=1:d=1:alpha=1 fade=t=out:st=7:d=1:alpha=1[txt] [v01][gradient] overlay [v02] [v02][txt] overlay[outv] -c:v libx264 -profile:v main -level:v 3.1 -pix_fmt yuv420p -c:a aac -map [outv] -f mp4 -y $filePath1"
 - "-i $path_of_file -vf " +
          "drawtext=enable='between(t,12,15)':fontfile=$fullTemporaryPath:text='Test test':x=10:y=10" +
          " -acodec copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[output] -map [output] -map 0:a -c:a copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[v] -map [v] -map 0:a -c:a copy $filePath1"
 - "-i $path_of_file -i $path_of_file -filter_complex [0:v:0] [0:a:0] [0:v:1] [0:a:1] concat=n=2:v=1:a=1 [v][a][v]drawtext=text='SOME TEXT':x=(w-text_w):y=(h-text_h):fontfile=$fullTemporaryPath:fontsize=30:fontcolor=white[v] \-map [v] -map [a] -deinterlace \-vcodec libx264 -pix_fmt yuv420p \-acodec libmp3lame -ar 44100 -threads 6 -qscale 3 -b:a 712000 -bufsize 512k \-f $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=10:10 'drawtext=fontfile=$fullTemporaryPath:text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[output]' -map [output] -c:a copy $filePath1"
 - "-i $path_of_file -i $fullTemporaryPathImage -filter_complex [0:v][1:v]overlay=5:5,drawtext=text=mytext:fontcolor=orange@1.0:fontsize=30:x=30:y=200[v] -map [v] -map 0:a -c:a copy $filePath1"
 - "hii"
 - "-i $path_of_file -vf drawtext=text='My Text':enable='between(t,20,120)': x=(w-text_h)/2: y=(h-text_h)/2: fontsize=32: fontcolor=white: box=1: boxcolor=black@0.5: boxborderw=5: -c:a copy $filePath1 "
 - "'-i $path_of_file -i $fullTemporaryPathImage -filter_complex "[0:v][1:v]overlay=5:5, drawtext="expansion=strftime:fontfile='
        '$fullTemporaryPath'
        ':fontsize=14:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=1:text='
        '$dateTimeVcode'
        ':x=w-tw-10:y=8"" -pix_fmt yuv420p -crf 49 -b:a 128k -cpu-used 8 -deadline realtime -strict experimental $filePath1'"


  


  Command that is worked in IOS to overlay image on video :

  


  "-i $path_of_file -i $fullTemporaryPathImage -filter_complex \"[0:v][1:v] overlay=25:25:enable='between(t,0,20)'\" -pix_fmt yuv420p -c:a copy $filePath1"