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• avcodec/aacpsy : Avoid floating point division by 0 of norm_fac

  28 mai 2021, par Michael Niedermayer

  avcodec/aacpsy : Avoid floating point division by 0 of norm_fac
  Fixes : Ticket7995
  
  Fixes : CVE-2020-20446
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/aacpsy.c

• Does exists other way of indenting ffmpeg batch script ?

  22 mars 2021, par Toni Cambronero Garcia

  How can I indent code in a Batch script other than using temporal variables %= =% ?
This is the only code that works for me with indentation.

  


  ::2020-12-31 10:43:40
@ECHO OFF
::SET VIDEO="E:\Vídeos\test.mp4"
SET VIDEO=%1
SET /P TITULO=Introduzca el título del vídeo: 
ffmpeg ^
    -y ^
    -loglevel verbose ^
    -i %VIDEO% ^
    -vf ^
          scale=^
%=          =%width=-2:^
%=          =%height=360,^
%=      =%drawtext=^
%=          =%fontfile='C\:/Windows/Fonts/impact.ttf':^
%=          =%text=%TITULO%:^
%=          =%fontcolor=white:^
%=          =%borderw=1:^
%=          =%fontsize=18:^
%=          =%alpha=0.99:^
%=          =%x=(w-tw)/2:^
%=          =%y=th/4:^
%=          =%expansion=none,^
%=      =%drawtext=^
%=          =%fontfile='C\:/Windows/Fonts/arial.ttf':^
%=          =%text='WATERMARK':^
%=          =%fontcolor=white:^
%=          =%borderw=1:^
%=          =%fontsize=18:^
%=          =%alpha=0.60:^
%=          =%x=w-tw-10:^
%=          =%y=h-th-10:^
%=          =%expansion=none^
    -map 0:v ^
    -map 0:a? ^
    -c:v h264 ^
    -crf 30 ^
    -c:a aac ^
    -q:a 1 ^
    -ac 1 ^
    %VIDEO:~0,-5%_WATERMARK.mp4


  


  If I try to use spaces or tabs in the "-vf" section ffmpeg interprets them as the end of the filter and the start of the output file argument .

  


• ffmpeg only drawing last text

  24 juillet 2020, par Muhammad Mohsin Ajmal

  Im using ffmpeg in flutter using the flutter ffmpeg plugin. While experimenting with it this is what I am trying to do : Show text between 1 to 2 seconds and a different text between 3 to 4 seconds in video.

  


  Only the text mentioned between 3 to 4 seconds is shown. So for me only the last drawText would work. What am I missing here ?

  


  The is the list of arguments generated

  


   Running FFmpeg with arguments: [-y, -i, /storage/emulated/0/DCIM/Camera/20200707_234610.mp4, -i, /data/user/0/com.example.example/app_flutter/watermark.png, -filter_complex, [0:v][1:v]overlay=main_w-overlay_w-5:5 ,drawtext=fontfile='/data/user/0/com.example.example/app_flutter/font.ttf':fontsize=90:x=20:y=20:text='Testing':enable='between(t\,1\,2),drawtext=fontfile='/data/user/0/com.example.example/app_flutter/font.ttf':fontsize=90:x=20:y=260:text='OTHER TEXT':enable='between(t\,3\,4)'', -crf, 27, -preset, veryfast, -c:v, libx264, -r, 30, /data/user/0/com.example.example/cache/2020-07-21T07:50:39.206386.mp4]