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• Makes video PTS in fmpeg at android

  8 janvier 2019, par Diego

  I am trying make bit slow my video which H264 format in fmpeg at android,When I run below code in cmd prompts it works,but in android it makes slowly and makes error.

  String[] cmd3 = {"-i",h264_path,"-filter:v","setpts=1.25*PTS",h264_new_path};
  
  
  
       try {
  
           executeCommand(cmd3);
  
           } 
  
       catch(FFmpegCommandAlreadyRunningException e) {
  
           e.printStackTrace();
  
           }

• OpenCV license for android platform

  10 novembre 2013, par powerX

  I'm using OpenCV and trying to figure out what its license when using it for Android.

  In this link you can find the license itself.

  BUT - in Android the OpenCV uses FFmpeg, which is partialy under the GPL license. The question is whether or not OpenCV uses the GPL capabillities of FFmpeg and also under the GPL License.

  No documentation about it.

• Compiling x265 with ffmpeg for Android and receiving errors

  5 juillet 2019, par m33ts4k0z

  Trying to compile x265 for use with arm64-v8a. After successuful build of x265 itself, I receive the following error when ffmpeg is about to compile :

  require_pkg_config libx265 x265 x265.h x265_api_get
  
  check_pkg_config libx265 x265 x265.h x265_api_get
  
  test_pkg_config libx265 x265 x265.h x265_api_get
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/ffmpeg-pkg-config --exists --print-errors x265
  
  check_func_headers x265.h x265_api_get -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib -lx265
  
  test_ld cc -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib -lx265
  
  test_cc -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib
  
  BEGIN /tmp/ffconf.xKyjnplW/test.c
  
      1   #include 
  
      2   #include 
  
      3   long check_x265_api_get(void) { return (long) x265_api_get; }
  
      4   int main(void) { int ret = 0;
  
      5    ret |= ((intptr_t)check_x265_api_get) & 0xFFFF;
  
      6   return ret; }
  
  END /tmp/ffconf.xKyjnplW/test.c
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/bin/aarch64-linux-android-clang -DANDROID -fpic -fpie -march=armv8-a --sysroot=/root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/sysroot -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -DANDROID -fpic -fpie -march=armv8-a -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/vpx/android/arm64-v8a/include -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x264/android/arm64-v8a/include/x264 -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/lame/android/arm64-v8a/include -DANDROID -fpic -fpie -march=armv8-a --static -mcpu=cortex-a57 -std=c11 -fPIE -fomit-frame-pointer -fPIC -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib -c -o /tmp/ffconf.xKyjnplW/test.o /tmp/ffconf.xKyjnplW/test.c
  
  clang60: warning: argument unused during compilation: '-L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib' [-Wunused-command-line-argument]
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/bin/aarch64-linux-android-clang -Wl,-z,defs -Wl,--unresolved-symbols=report-all -march=armv8-a -L/root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/sysroot -Wl,-z,relro -Wl,-z,now -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/vpx/android/arm64-v8a/lib -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x264/android/arm64-v8a/lib -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/lame/android/arm64-v8a/lib -Wl,-z,defs -Wl,--unresolved-symbols=report-all -march=armv8-a -L/root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/sysroot -Wl,-z,relro -Wl,-z,now --static --sysroot=/root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/sysroot -mcpu=cortex-a57 -Wl,--as-needed -Wl,-z,noexecstack -fPIE -pie -I/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/include/x265 -L/root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib -o /tmp/ffconf.xKyjnplW/test /tmp/ffconf.xKyjnplW/test.o -lx265 -lgcc
  
  clang60: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: skipping incompatible /root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib/libx265.a when searching for -lx265
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: skipping incompatible /root/ffmpeg_android/ffmpeg-android-1.6.3/jni/x265/android/arm64-v8a/lib/libx265.a when searching for -lx265
  
  /root/ffmpeg_android/ffmpeg-android-1.6.3/toolchain-android/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lx265
  
  clang60: error: linker command failed with exit code 1 (use -v to see invocation)
  
  ERROR: x265 not found using pkg-config

  I use ffmpeg 4.1.3 and the latest version of x265 sources. I use this project to compile and I have succeeded when building without x265. I compile on Debian Buster x64.