Recherche avancée

Sur d’autres sites (13756)

• ffmpeg configure always returns "not found" when using sysroot and cross-prefix options - how to use them correctly ?

  5 août 2014, par user2212461

  I try to build ffmpeg with a cross-compiler. When setting the configure flags I am getting the following errors :

  WARNING: Compiler does not indicate floating-point ABI, guessing soft.
  
  build_it.sh: 29: build_it.sh: --sysroot=/home/android/android-ndk-r9/platforms/
  
      android-9/arch-arm/: not found
  
  build_it.sh: 32: build_it.sh.sh: --cross-prefix=/home/android/android-ndk-r9/
  
      toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-and
  
      roideabi-: not found

  The error message "not found" sounds like the paths dont exist but they are all correct and existing. How can I resolve this error ?

  build_it.sh :

  NDK=/home/android/android-ndk-r9
  
  SYSROOT=$NDK/platforms/android-9/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
  
  CPU=arm
  
  PREFIX=test
  
  ADDI_CFLAGS="-marm"
  
  platform="android-9"
  
  
  
  ./configure \
  
      --disable-asm \
  
      --enable-shared \
  
      --target-os=linux \
  
      --arch=arm \
  
      --enable-cross-compile \
  
      --disable-static \
  
      --sysroot=$SYSROOT \
  
      --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
      --extra-ldflags="$ADDI_LDFLAGS"
  
      --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
      --prefix=$PREFIX \
  
  
  
  ##configure fails here
  
  ...

• Use Google Analytics and risk fines, after CJEU ruling on Privacy Shield

  27 août 2020, par Joselyn Khor — Privacy
  EU websites using Google Analytics and Facebook are being targeted by European privacy group noyb after the invalidation of the Privacy Shield. They filed a complaint against 101 websites for continuing to send data to the US. 

  “A quick analysis of the HTML source code of major EU webpages shows that many companies still use Google Analytics or Facebook Connect one month after a major judgment by the Court of Justice of the European Union (CJEU) - despite both companies clearly falling under US surveillance laws, such as FISA 702. Neither Facebook nor Google seem to have a legal basis for the data transfers.”

  

  The Privacy Shield previously allowed for EU data to be transferred to the US. However, this was invalidated by the Court of Justice of the European Union (CJEU) on July 16, 2020. The CJEU deemed it illegal for any websites to transfer the personal data of European citizens to the US. 

  They also made it clear in a press release that “data subjects can claim compensation for inadmissible data exports (marginal no. 143 of the judgment). This should in particular include non-material damage (“compensation for pain and suffering”) and must be of a deterrent amount under European law.” Which puts extra financial pressure on websites to take the new ruling seriously.

  Immediate action is required after Google Privacy Shield invalidation

  The Berlin Commissioner for Data Protection and Freedom of Information therefore calls on all those responsible under its supervision to observe the decision of the ECJ [CJEU]. Those responsible who transfer personal data to the USA - especially when using cloud services - are now required to immediately switch to service providers in the European Union or in a country with an adequate level of data protection.

  As the ruling is effective immediately, there’s a pressing need for websites using Google Analytics to act, or face getting fined.

  What does this mean for you ?

  If you’re using Google Analytics the safest bet is to stop using it immediately. 

  "Neither Google Analytics nor Facebook Connect are necessary for the operation of these websites and could therefore have been replaced or at least deactivated in the meantime."

  If you still need to use it, then you’ll need to inform your visitors via a clear consent screen. This banner needs to make clear their personal data will be sent to the US, and to educate them about any potential risk related to this. They will then need to explicitly agree to this. 

  Another downside of cookie consent screens is that you may also suffer a damaging loss of visitors. After implementing cookie consent best practices, the UK’s data regulator the Information Commissioner’s Office (ICO) found a 90% drop in traffic, “implying a ninety percent drop in opt-in rates.”

  With an acceptance rate for such consent screens being lower than 10% your analytics becomes guesswork rather than science. 

  Looking for a privacy-respecting alternative to Google Analytics ?

  Privacy compliant Matomo Analytics is one of the best Google Analytics alternatives availalble. 

  With Matomo you’re able to continue using analytics without facing the wrath of both the GDPR and the CJEU. Matomo On-Premise lets you choose where your data is stored, so you can ensure no data is processed in the US. 

  Matomo is privacy-friendly and can be tweaked to comply with all privacy laws. Including the GDPR, HIPAA, CCPA and PECR. The benefits of this include : not needing to use tracking or cookie consent screens (like with GA) ; and avoiding fines because no personal data is collected. You also get 100% accurate data and the ability to protect your user’s privacy.

  Download Matomo

  

  Is your EU business at risk of being fined for using Google Analytics ?

  Email

  Get our assessment guide

• how to call a c function in the C++ function with the same name ?

  25 juillet 2013, par wolfz

  how to call a c function in the C++ function with the same name ?
  calling 'extern "c"' to use c header and ": :"operation to use the c function,
  but the link error occur.

  my code :

  extern "C" {
  
  #include <libavcodec></libavcodec>avcodec.h>
  
  }
  
  ...
  
  class DllAvCodec 
  
  {
  
    public:
  
    ...
  
    virtual void av_free_packet(AVPacket *pkt) { ::av_free_packet(pkt); }
  
    ...
  
  }

  the error :

  D:/player/jni/lib/DllAvCodec.h:143: error: undefined reference to 'av_free_packet(AVPacket*)'

  why the code "::av_free_packet(pkt)" invoke undefined ?

  my Android.mk is :

  LOCAL_PATH := $(call my-dir)
  
  DEFINES += \
  
             -DTARGET_POSIX \
  
             -DTARGET_LINUX \
  
             -D_LINUX \
  
             -DTARGET_ANDROID \
  
             -D__STDC_CONSTANT_MACROS 
  
  
  
  ######################################
  
  #build ffmpeg prebuilt lib
  
  ######################################
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libavcodec
  
  LOCAL_SRC_FILES := lib/lib/libavcodec.a 
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libavfilter  
  
  LOCAL_SRC_FILES := lib/lib/libavfilter.a
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libavformat  
  
  LOCAL_SRC_FILES := lib/lib/libavformat.a  
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libavutil  
  
  LOCAL_SRC_FILES := lib/lib/libavutil.a  
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libpostproc  
  
  LOCAL_SRC_FILES := lib/lib/libpostproc.a   
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libswresample  
  
  LOCAL_SRC_FILES := lib/lib/libswresample.a   
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  include $(CLEAR_VARS)  
  
  LOCAL_MODULE := libswscale  
  
  LOCAL_SRC_FILES := lib/lib/libswscale.a
  
  LOCAL_EXPORT_C_INCLUDES +=$(LOCAL_PATH)/lib/include
  
  include $(PREBUILT_STATIC_LIBRARY)
  
  
  
  
  
  ######################################
  
  #build lib
  
  ######################################
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE:= player
  
  base := $(LOCAL_PATH)
  
  
  
  LOCAL_SRC_FILES += ......
  
  
  
  LOCAL_CPPFLAGS += -Wall -fexceptions $(DEFINES)  
  
  LOCAL_LDLIBS += -llog -lz
  
  LOCAL_LDFLAGS += -L../jni/lib/lib  -lavcodec -lavformat  -lavutil -lavfilter -lpostproc  -lswscale -lswresample
  
  
  
  LOCAL_STATIC_LIBRARIES := libavcodec \
  
                            libavformat \
  
                            libavutil \
  
                            libavfilter \
  
                            libpostproc \
  
                            libswscale \
  
                            libswresample 
  
  
  
  include $(BUILD_SHARED_LIBRARY)