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• The question about ffmpeg drawtext filter [closed]

  5 mai 2024, par B1GGersnow

  I tried to use rockchip(aarch64) hardware acceleration and add a drawtext filter to add watermarks. However, squares appear when multiple Chinese fonts are added.

  


  This is my compilation parameter.

  


  ./configure --prefix=/usr --enable-gpl --enable-version3 --enable-libdrm --enable-rkmpp --enable-rkrga --enable-filter=drawtext --enable-libharfbuzz --enable-libfreetype --enable-libfontconfig --enable-libfreetype --enable-libfribidi


  


  


  1. ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -i 1.mp4 -vf scale_rkrga=w=1920:h=1080,hwdownload,format=nv12,drawtext=text='中文':fontfile=msyh.ttc:fontsize=200 -c:v h264_rkmpp -y -t 10  output.mp4
img1

     


  


  2. ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -i 1.mp4 -vf "scale_rkrga=w=1920:h=1080,hwdownload,format=nv12,drawtext=text='中文字幕测试':fontfile=msyh.ttc:fontsize=200" -c:v h264_rkmpp -y -t 10  output.mp4
img2

     


  


  


  But I try to use apt install ffmpeg to install ffmpeg which is officially maintained by Ubuntu. I got the right result. So I think it's the library, and I'm trying to compile using the official library.

  


  ./configure --prefix=/usr --enable-gpl --enable-version3 --enable-filter=drawtext --enable-libharfbuzz --enable-libfreetype --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libx264


  


  I still get garbled results.

  


  Is this because there is something wrong with my compilation dependent library ?

  


  When I compiled it with the same parameters on wsl, there was no garbled code.

  


• How can I solve the error when installing ffmpeg [closed]

  11 mars 2024, par zhiyang hou

  OS :
uname -r
3.10.0-957.27.2.el7.x86_64

  


  I performed the following steps on CentOS :

  


  1.Installed dependency libraries :

  


  sudo yum install epel-release -y
sudo yum install autoconf automake cmake freetype-devel gcc gcc-c++ git libtool make      mercurial nasm pkgconfig zlib-devel -y


  


  2.Cloned the FFmpeg repository :

  


  git clone https://git.ffmpeg.org/ffmpeg.git


  


  3.Compiled and installed FFmpeg :

  


  cd ffmpeg
./configure --enable-shared
make -j$(nproc)
sudo make install


  


  Then, I encountered the following issue :

  


  (123) [root@b0a30580415d ffmpeg]# make install
INSTALL libavdevice/libavdevice.a
X86ASM  libavcodec/x86/vvc/vvc_mc.o
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:55: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:56: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:57: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
libavcodec/x86/vvc/vvc_mc.asm:58: error: operand 1: expression is not simple or relocatable
make: *** [libavcodec/x86/vvc/vvc_mc.o] Error 1


  


  I am trying to find relevant information on the ffmpeg official website, but I don't know how to solve it. I hope to get guidance from someone with strong technical skills. Thank you.

  


• JAVE (Java Audio Video Encoder) library exception only on Linux (CentOS 7)

  13 octobre 2017, par Linu Radu

  I’m using JAVE (Java Audio Video Encoder) library and the developed application is on windows.
  On windows the conversion of an .mp3 file is working fine but when I deployed on linux (CentOS 7) an exception is thrown.

  As I understand JAVE has also a wrapper around an ffmpeg executable.

  Here is my code :

  try {
  
          File source = new File(sourceFile);
  
          File target = new File(targetFile);
  
  
  
          final AudioAttributes audio = new AudioAttributes();
  
          audio.setCodec("libmp3lame");
  
          audio.setBitRate(88000);
  
          audio.setChannels(2);
  
          audio.setSamplingRate(44100);   
  
  
  
          EncodingAttributes attrs = new EncodingAttributes();
  
          attrs.setFormat("mp3");
  
          attrs.setAudioAttributes(audio);
  
  
  
          Encoder encoder = new Encoder();
  
          encoder.encode(source, target, attrs);
  
  } catch (EncoderException ex) {
  
      throw ex;
  
  }

  Exception :

  ...
  
  
  
  Caused by: it.sauronsoftware.jave.EncoderException: Error while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
      at it.sauronsoftware.jave.Encoder.encode(Encoder.java:926)
  
      at it.sauronsoftware.jave.Encoder.encode(Encoder.java:713)
  
      at com.hft2.ejb.util.Mp3JaveEncoder.encode(Mp3JaveEncoder.java:36)
  
      ... 206 more

  Update

  Here is the official page : http://www.sauronsoftware.it/projects/jave/

  Full exception log : https://jpst.it/1678l

  Does anyone have any idea ?