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• ffmpeg showwaves color

  14 novembre 2022, par Andrew

  I'm trying to produce a video that has a lime green colored waveform overlayed on top of a background image. Unfortunately though, there is a grey color in the lines as you can see here :

  



  

  



  How can I make the grey parts lime green as well ?

  



  And if possible, I would like to make the lines thicker as well.

  



  Here is my ffmpeg command :

  



  ffmpeg -i input.aac -i background.jpg -filter_complex "[0:a]aformat=sample_fmts=s16:sample_rates=4410:channel_layouts=mono,showwaves=size=300x200:mode=p2p:rate=10:colors=#68b847[fg];[1:v][fg]overlay=130:150,format=yuv420p[v]" -map "[v]" -map 0:a -c:v libx264 -r 10 -c:a copy -r 10 -movflags +faststart output.mp4

  


• Remove Unnecesary Maven Dependencies from Eclipse

  18 mai 2021, par ur3k

  I am working with Spring-Boot 2.3.8 and Eclipse.

  


  I am using these dependencies to work on some videos :

  


      &#xA;    <dependency>&#xA;        <groupid>org.bytedeco</groupid>&#xA;        <artifactid>javacv</artifactid>&#xA;        <version>1.5.4</version>&#xA;    </dependency>&#xA;&#xA;    &#xA;    <dependency>&#xA;        <groupid>org.bytedeco</groupid>&#xA;        <artifactid>opencv-platform</artifactid>&#xA;        <version>4.4.0-1.5.4</version>&#xA;    </dependency>&#xA;&#xA;    &#xA;    <dependency>&#xA;        <groupid>org.bytedeco</groupid>&#xA;        <artifactid>ffmpeg-platform</artifactid>&#xA;        <version>4.3.1-1.5.4</version>&#xA;    </dependency>&#xA;    &#xA;

  


  Eclipse is adding all JARs of opencv, javaccp and ffmpeg, including JARs for Androind, MacOs, etc. I just need the ones for Windows and the problem is that these extra dependencies are creating problems for my teams when they try to load the project, build or test it (it is extreamly slow or just doesnt work).

  


  These dependencies are not present in my final WAR when I build with maven form the command line and I use :

  


  mvn -Djavacpp.platform=windows-x86_64 clean install 


  


  Is there a way to tell eclipse to do the same ?

  


  The WAR size goes from 800 MB to around 200 MB when building without and with and the platform flag, these extra 600 MB are what in my opinion is too much for eclipse.

  


  Here is an image of all the JARs being added to the project.

  


  

  


• How can I configure library dependencies in setup.py

  1er septembre 2021, par idontidontknowknow

  I want to pack a c++ project into python wheel package that user can install it by pip install myProject in different platform(like ubuntu, centos...), but the project is rely on a open source c library(ffmpeg).

  


  I try to generate ffmpeg.so, then load it with ctypes.CDLL("ffmpeg.so", mode=RTLD_GLOBAL), it works in ubuntu(the same version with my development platform but no ffmpeg environment), but not works in centos.

  


  What should I do that make the wheel package can pip and use in different platform without configuring dependencies again ?