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• Trouble building ffmpeg with cuda for windows 32 with visual studio 2022

  27 juillet 2022, par manou

  Here is my building process

  


  I open mingw32 from the x64 Native Tools Command Prompt for VS 2022

  


  then in the mingw32 shell :

  


  # cd /
# ./c/Program\ Files/Microsoft\ Visual\ Studio/2022/Community/VC/Auxiliary/Build/vcvars32.bat
# cd ~
# pacman -Sy diffutils git make gcc yasm pkg-config --noconfirm
# git clone --depth 1 https://git.ffmpeg.org/ffmpeg.git ffmpeg 
# git clone https://git.videolan.org/git/ffmpeg/nv-codec-headers.git nv-codec-headers 
# cd nv-codec-headers/
# make PREFIX=/usr/local
# make install PREFIX=/usr/local
# cd ..
# mkdir nv_sdk
# cp -r /c/Program\ Files/NVIDIA\ GPU\ Computing\ Toolkit/CUDA/v11.7/lib/Win32/* nv_sdk
# cp -r /c/Program\ Files/NVIDIA\ GPU\ Computing\ Toolkit/CUDA/v11.7/include/* nv_sdk
# export PATH="/c/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.32.31326/bin/Hostx86/x86/":$PATH
# export PATH="/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v11.7/bin/":$PATH
# ./configure --disable-everything --enable-decoder=h264 --enable-decoder=hevc --enable-cross-compile --disable-avdevice --disable-swresample --disable-postproc --disable-avfilter --target-os=mingw32 --enable-cuda-nvcc --enable-nonfree --toolchain=msvc --extra-cflags=-I../nv_sdk --extra-ldflags=" -m32 -L../nv_sdk" --enable-shared --shlibdir=SHARED_LIBS --arch=x86_32 --enable-runtime-cpudetect --enable-w32threads
# make -j8
# make install


  


  first I have a bunch of warnings during the making looking like that :
libavutil/opt.c(1075): warning C4133: 'fonction' : types incompatibles - de 'AVPixelFormat *' à 'int *'

  


  And finally the make install returns :

  


  EXTERN_PREFIX="_" AR="lib.exe" NM="dumpbin.exe -symbols" ./compat/windows/makedef libavutil/libavutil.ver libavutil/adler32.o libavutil/aes.o libavutil/aes_ctr.o libavutil/audio_fifo.o libavutil/avsscanf.o libavutil/avstring.o libavutil/base64.o libavutil/blowfish.o libavutil/bprint.o libavutil/buffer.o libavutil/camellia.o libavutil/cast5.o libavutil/channel_layout.o libavutil/color_utils.o libavutil/cpu.o libavutil/crc.o libavutil/des.o libavutil/detection_bbox.o libavutil/dict.o libavutil/display.o libavutil/dovi_meta.o libavutil/downmix_info.o libavutil/encryption_info.o libavutil/error.o libavutil/eval.o libavutil/fifo.o libavutil/file.o libavutil/file_open.o libavutil/film_grain_params.o libavutil/fixed_dsp.o libavutil/float_dsp.o libavutil/frame.o libavutil/hash.o libavutil/hdr_dynamic_metadata.o libavutil/hdr_dynamic_vivid_metadata.o libavutil/hmac.o libavutil/hwcontext.o libavutil/hwcontext_d3d11va.o libavutil/hwcontext_dxva2.o libavutil/imgutils.o libavutil/integer.o libavutil/intmath.o libavutil/lfg.o libavutil/lls.o libavutil/log.o libavutil/log2_tab.o libavutil/lzo.o libavutil/mastering_display_metadata.o libavutil/mathematics.o libavutil/md5.o libavutil/mem.o libavutil/murmur3.o libavutil/opt.o libavutil/parseutils.o libavutil/pixdesc.o libavutil/pixelutils.o libavutil/random_seed.o libavutil/rational.o libavutil/rc4.o libavutil/reverse.o libavutil/ripemd.o libavutil/samplefmt.o libavutil/sha.o libavutil/sha512.o libavutil/slicethread.o libavutil/spherical.o libavutil/stereo3d.o libavutil/tea.o libavutil/threadmessage.o libavutil/time.o libavutil/timecode.o libavutil/tree.o libavutil/twofish.o libavutil/tx.o libavutil/tx_double.o libavutil/tx_float.o libavutil/tx_int32.o libavutil/utils.o libavutil/version.o libavutil/video_enc_params.o libavutil/x86/cpu.o libavutil/x86/cpuid.o libavutil/x86/fixed_dsp.o libavutil/x86/fixed_dsp_init.o libavutil/x86/float_dsp.o libavutil/x86/float_dsp_init.o libavutil/x86/imgutils.o libavutil/x86/imgutils_init.o libavutil/x86/lls.o libavutil/x86/lls_init.o libavutil/x86/tx_float.o libavutil/x86/tx_float_init.o libavutil/xga_font_data.o libavutil/xtea.o > libavutil/avutil-57.def
Could not create temporary library.
make: *** [ffbuild/library.mak:118: libavutil/avutil-57.dll] Error 1


  


  What am I doing wrong ?
shall I install others packets from pacman ?

  


• How to use the -threads option in fluent-ffmpeg for a windows server ?

  8 janvier 2020, par MetroSlim

  I’m struggling to find the right way to pass the -threads option to fluent-ffmpeg and to make it work nicely on a windows server.

  My actual process is code as follow :

   ffmpeg(video.pathToFile)       
  
          .input(musicFile)        
  
          .output(outputVideoFile)
  
          .outputOptions([
  
            '-c:v libx264',
  
            '-c:a aac',
  
            '-shortest',
  
            '-threads 2',
  
          ])
  
          .on('end', () => {          
  
              console.log("Merge done in : ", Math.round(+new Date()/1000) - unixTimestamp, 'sec');
  
  
  
              video.pathToFile = outputVideoFile;
  
              resolve(video); 
  
          })
  
          .on('error', (error) => { 
  
              reject(error);
  
          })
  
          .on('progress', function(info) {
  
              console.log('progress ' + info.percent + '%');
  
           })
  
          .run();

  But it doesn’t seems to work, I still get a 95% of CPU usage and I have 4 physicals cores on my windows server.

• Windows 10 server ffmpeg configuration

  10 octobre 2019, par Aakash

  FF-MPEG Run-time execution in java not running in windows 10 server.I Have test with my system its working perfectly but in windows 10 server not works.i have also gives the environment variable path in windows 10 but problem is still. my code is following

  I Have try all the possible ways to running ff-mpeg command in run-time java environment but error still continues in windows 10 server

  String cmd = "ffmpeg -i " + source + " -ar 16000 -ac 1 " + pathwav + wavFileName + ".wav" ;

          System.out.println("cmd=> "+cmd);
  
          Process p = Runtime.getRuntime().exec(cmd); 
  
          p.waitFor();
  
          System.out.println("Exit value: " + p.exitValue());
  
          if(p.exitValue()==0)
  
          {
  
              System.out.println(wavFileName + " is Created");
  
              String path = pathwav + wavFileName + ".wav";
  
              return path;
  
          }

  I Expect Wav File is creates in given path but it not created due to not execution of ffmpeg command