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• "make : *** No rule to make target 'clean'. Stop." error when i want to Build ffmpeg with NDK

  26 avril 2015, par Hossein

  I want to Build ffmpeg with NDK in windows and i use this tutorial.
  i have created "build_android.sh" file into ffmpeg folder, an this is it’s code :

  #!/bin/bash
  
  
  
  NDK=C:/Users/HAKHASIN/Desktop/android-ndk-r10d
  
  
  
  SYSROOT=$NDK/platforms/android-8/arch-arm/
  
  
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/windows
  
  
  
  function build_one
  
  
  
  {
  
  
  
  C:/Users/HAKHASIN/Desktop/android-ndk-r10d/sources/ffmpeg-2.6.2/configure \
  
  
  
  --prefix=$PREFIX \
  
  
  
  --disable-shared \
  
  
  
  --enable-static \
  
  
  
  --disable-doc \
  
  
  
  --disable-ffmpeg \
  
  
  
  --disable-ffplay \
  
  
  
  --disable-ffprobe \
  
  
  
  --disable-ffserver \
  
  
  
  --disable-avdevice \
  
  
  
  --disable-doc \
  
  
  
  --disable-symver \
  
  
  
  --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
  
  
  --target-os=linux \
  
  
  
  --arch=arm \
  
  
  
  --enable-cross-compile \
  
  
  
  --sysroot=$SYSROOT \
  
  
  
  --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
  
  
  --extra-ldflags="$ADDI_LDFLAGS" \
  
  
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  
  
  make clean
  
  
  
  make
  
  
  
  make install
  
  
  
  }
  
  
  
  CPU=arm
  
  
  
  PREFIX=$(pwd)/android/$CPU
  
  
  
  ADDI_CFLAGS="-marm"
  
  
  
  build_one

  when i write commands in cygwin, i have 3 errors :

  

  how can i fix these errors ? thanks

• Download brightcove video

  17 mai 2015, par desert877

  So I have sucessfully downloaded flash videos on in the past but for some reason I am having issues with a local news report. The video I am trying to download is :

  http://www.kens5.com/story/news/2015/04/07/one-dead-after-shooting-at-north-side-auto-body-shop/25444855/

  When I check network sources I get the following output :

  http://kens-vh.akamaihd.net/z/video/25446645/25446645_,350,640,1000,2000,.mp4.csmil/3_5e4ebc852f616aa3_Seg1-Frag7?videoId=4159855028001&lineUpId=&pubId=3616287834001&playerId=3626703558001&affiliateId=&als=16.11,30,12.83,3,2176,13298,30,0,0,114,f,7.9,101.94,f,s,SCJIPJRDQHXW,3.4.0,114&hdcore=3.4.0

  I downloaded a tool recommend to me call ffmpeg and ran a command from a forum that said "Invalid data found when processing input". Unable to figure out issue there.

  Does any one know any scripts/code/tools/methods whatever that I can use to download this video ?

  Any help would be great.

• Integrating ffmpeg with qtcreator on windows

  26 juin 2015, par Mayank Agarwal

  I am making simple application just calling ffmpeg av_register_all in qt project ffmpegexample main.cpp but i am getting the following error :

  main.obj :-1 : error : LNK2019 : unresolved external symbol
  _av_register_all referenced in function _main

  My .pro file is as follows :

  QT       += core
  
  
  
  QT       -= gui
  
  
  
  
  
  QMAKE_CXXFLAGS += -D__STDC_CONSTANT_MACROS
  
  
  
  INCLUDEPATH = -I D:/ffmpeg/dev/include
  
  
  
  LIBS += -LD:/ffmpeg/shared/bin
  
  LIBS += -LD:/ffmpeg/dev/lib
  
  
  
  TARGET = ffmpegexample
  
  CONFIG   += console
  
  CONFIG   -= app_bundle
  
  
  
  TEMPLATE = app
  
  
  
  
  
  SOURCES += main.cpp

  Including the LIBS and DLLs as well as headers from ffmpeg static/dev builds from this location.

  My main file is below :

   #include <qcoreapplication>
  
   extern "C" {
  
   #include <libavutil></libavutil>imgutils.h>
  
   #include <libavutil></libavutil>samplefmt.h>
  
   #include <libavutil></libavutil>timestamp.h>
  
   #include <libavformat></libavformat>avformat.h>
  
   }
  
  
  
   int main(int argc, char *argv[])
  
   {
  
   QCoreApplication a(argc, argv);
  
  
  
   av_register_all();
  
  
  
   return a.exec();
  
   }
  
  </qcoreapplication>

  also run qmake to generate Makefile.debug
  and also copied all the dlls and .libs in folder where project main.cpp is there
  but that also didn’t help
  i am getting error :

  main.obj :-1 : error : LNK2019 : unresolved external symbol
  _av_register_all referenced in function _main File not found main.obj

  Don’t understand why main.obj is not getting generated

  Regards
  Mayank