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• App crashes while creating FfmpegFrameRecorder object

  21 juillet 2017, par samirk433

  I manually integrated ’javacv’ with Android Studio in my application for live streaming to Youtube.
  When I create FFmpegFrameRecorder instance the app crashes without any exception.
  recorder = new FFmpegFrameRecorder(streamLink, imageWidth, imageHeight, 1);

  I only find these error log after app crashes, and I don’t what does it mean.

  E/dex2oat : Failed to create oat file

  E/Zygote : v2

  Any suggestions ?

• Compiling ffmpeg with NVDIA GPU enabled for windows

  12 octobre 2017, par Guru

  I am working on decoding video using ffmpeg with NVDIA GPU enabled on windows platform.

  Followed below steps as per the document provided by ffmpeg to compile ffmpeg software

  1. Install msys2 from www.msys2.org.
  2. Clone FFMPEG’s public GIT repository. git clone https://git.ffmpeg.org/ffmpeg.git
  3. Create a folder named nv_sdk in the parent directory of FFMPEG and copy all the libraries from C :\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\include to and C :\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\lib\x64 to nv_sdk folder.
  4. Launch the Visual Studio x64 Native Tools Command Prompt.
  5. From the Visual Studio x64 Native Tools Command Prompt, launch the MinGW64 environment by running mingw64.exe from the msys2 installation folder.
  6. In the MinGW64 environment, install the necessary packages. pacman -S diffutil make pkg-config yasm
  7. Add the following paths by running the commands. export PATH="/c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/BIN/amd64/" :$PATH export PATH="/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v8.0/bin/" :$PATH
  8. Go to the FFMPEG installation folder and run the following command. ./configure —enable-nonfree —enable-nvenc —enable-cuda —enable-cuvid —enable-libnpp —extra-cflags=-Ilocal/include —extra-cflags=-I../nv_sdk —extra-ldflags=-L../nv_sdk
  9. Compile the code by executing the following command. make -j 8

  But In the 8th step I am getting below error, please let me know what could be the possible solution for the issue.

  admin@ADMIN-PC MINGW64 /c/ffmpeg
  $ ./configure —enable-nonfree —enable-nvenc —enable-cuda —enable-cuvid —ena ble-libnpp —extra-cflags=-Ilocal/include —extra-cflags=-I../nv_sdk —extra-ldf lags=-L../nv_sdk
  gcc is unable to create an executable file.
  If gcc is a cross-compiler, use the —enable-cross-compile option.
  Only do this if you know what cross compiling means.
  C compiler test failed.

  If you think configure made a mistake, make sure you are using the latest
  version from Git. If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "ffbuild/config.log" produced by configure as this will hel p
  solve the problem.

• how to integrate ffmpeg gl-transition project in my exit project

  17 décembre 2019, par p.jadhav

  i want to add trasition effect between images of video so i used https://github.com/transitive-bullshit/ffmpeg-gl-transition for video trasition effect but Building command not work in my android studio.
  1.git clone http://source.ffmpeg.org/git/ffmpeg.git ffmpeg.
  2.cd ffmpeg.

  first two command run successfully in android studio terminal.
  when try to run "ln -s /ffmpeg-gl-transition/vf_gltransition.c libavfilter/"
  get error :

  screen shot1
  

  when run command "git apply /ffmpeg-gl-transition/ffmpeg.diff"
  get error :

  screen shot2
  
  and run command "./configure —enable-libx264 —enable-gpl —enable-opengl \
  —enable-filter=gltransition —extra-libs=’-lGLEW -lglfw’"
  get error :

  screen shot3
  
  i use com.writingminds:FFmpegAndroid:0.3.2 for create normal video.please tell me how to integrate library in my project or any anotherway to do this