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• configure : Automatically add -isysroot for darwin if —sysroot is specified

  21 juin 2017, par Martin Storsjö

  configure : Automatically add -isysroot for darwin if —sysroot is specified
  Check the existing flags in the cc/cflags/cppflags/ldflags for
  
  occurrances of -isysroot ; if none is found but —sysroot was specified,
  
  set -isysroot to the same value as —sysroot.
  This simplifies configuring cross-builds for iOS, if the global
  
  environment variable SDKROOT isn’t set.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] configure

• Including ffmpeg in qt project on windows causes the program to unexpectedly finish

  1er avril 2016, par Burn-Man

  I am trying to include ffmpeg in my qt project on windows. I am running QT4 and compiling with microsoft visual compiler 2010 on 32 bit windows 7. I am trying to include ffmpeg 2.8 which I got the dev and shared downloads from zeranoe. When I run it I get the following output :

  Starting (executable path)...
  
  The program has unexpectedly finished.
  
  (executable path) exited with code -1073741819

  I am able to produce this output with the following :

  ffmpeg_test.pro :

  QT += core
  
  TARGET = ffmpeg_test
  
  
  
  INCLUDEPATH += (ffmpeg dev path)/include
  
  LIBS += -L(ffmpeg dev path)/lib
  
  LIBS += -lavformat
  
  
  
  SOURCES += main.cpp

  main.cpp :

  extern "C"
  
  {
  
  #ifndef __STDC_CONSTANT_MACROS
  
  #define __STDC_CONSTANT_MACROS
  
  #endif
  
  #include <libavformat></libavformat>avformat.h>
  
  }
  
  
  
  int main(int argc, char *argv[])
  
  {
  
    av_register_all();
  
    return 0;
  
  }

  I have put the .dll files from the ffmpeg share bin into the same folder that QT builds ffmpeg_test.exe into. I have also confirmed that they are found using dependency walker which shows a question mark when they are not in that directory and the avformat-56.dll file path when they are (the fact that the .dll files are found does not effect the output of the program).

  Dependency walker does reveal that something weird is going on as there are no expected functions, but the functions found in avformat-56.dll look correct. I also have ran Dumpbin.exe /EXPORTS on avformat.lib and it also looks fine (I can post output if it would be helpful). It is worth noting that I have included this version of ffmpeg in a different application on this machine, it was not a qt project however. That project generated its make file with CMake rather than QMake and was built with Microsoft Visual C++ 2010 rather than QT Creator.

  I have also included other .lib/.dll pairs in qt and they have no problems. I am noticing two differences from those pairs. First in the ffmpeg-dev lib folder instead of having only .lib files (as is the case for all my other .lib/.dll pairs) I also have a .def and a .dll.a file for each library. Second ffmpeg is a c library whereas all my other included libraries are c++.

  update 3/29 :

  I have tried replacing the LIBS lines in my .pro with both of the following :

  LIBS += (ffmpeg dev path)/lib/avformat.lib

  LIBS += (ffmpeg dev path)/lib/libavformat.dll.a

  Both give the same error message. I have also tried adding the following to my .pro file also with no effect.

  DEFINES += __STDC_CONSTANT_MACROS
QMAKE_CXX_FLAGS += -D_STDC_CONSTANT_MACROS

  Additionally I tried adding #define inline __inline to main.cpp as suggested on the ffmpeg website. Any ideas of things to try would be hugely appreciated !

  update 3/31 :

  I have tried to start over with a new Windows build environment but the result remains unchanged with the test code above. (The new environment was able to run a hello world program).

  My process for setting up this environment was to install a fresh version of 32 bit windows 7. Install Visual C++ 2010 Express from the Visual Studio 2010 Express All-in-one ISO. Install Qt 4.8.6 for 32 bit windows and Visual Studio 2010. And finally install Qt Creator 2.5.2. To set up Qt creator I went under tools->options and told it where to find the Qt 4.8.6 qmake. I downloaded the dev and shared builds for ffmpeg 2.8 from Zeranoe. I was missing stdint.h and inttypes so I downloaded them and put the files in /include/libavutil. Then I corrected any of the header files that complained from to "stdint.h" ect. I then put the dll files from ffmpeg-2.8-win32-shared/bin into the folder where qt was building ffmpeg_test ffmpeg_test-build-desktop-Qt_4_8_6__4_8_6__Release/release.

• IOException when trying to run ffmpeg command on Android

  20 avril 2020, par Rashid Faheem

  I am using this library through gradle with Android Studio 3.6.

  



  implementation 'com.github.hiteshsondhi88.libffmpeg:FFmpegAndroid:0.2.5'


  



  This is path of input and output file.

  



  String VideoIn = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Download/Ab.mp4";
String VideoOut = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Download/Ab1.avi";


  



  This is code where I load ffmpeg and try to execute command to convert an mp4 into avi. (Same command i use on windows to do this task). But it say IOException (No such file or directory) although input file is present in Download folder.

  



  private void convert(String VideoIn, String VideoOut) {
    ffmpeg = FFmpeg.getInstance(this);
    try {
        ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
            @Override
            public void onFailure() {
                super.onFailure();
            }

            @Override
            public void onSuccess() {
                super.onSuccess();
            }

            @Override
            public void onStart() {
                super.onStart();
            }

            @Override
            public void onFinish() {
                super.onFinish();
            }
        });
    } catch (FFmpegNotSupportedException e) {
        Log.e(TAG, e.getMessage());
    }

    try {
        ffmpeg.execute("-i " + VideoIn + " " + VideoOut, new ExecuteBinaryResponseHandler() {
            @Override
            public void onSuccess(String message) {
                Log.e(TAG, message);
            }

            @Override
            public void onProgress(String message) {
                Log.e(TAG, message);
            }

            @Override
            public void onFailure(String message) {
                Log.e(TAG, message);
            }

            @Override
            public void onStart() {
                Log.e(TAG, "onStart called");
            }

            @Override
            public void onFinish() {
                Log.e(TAG, "onFinish called");
            }
        });
    } catch (FFmpegCommandAlreadyRunningException ex) {
        Log.e(TAG, ex.getMessage());
    }
}


  



  Here is log data for your to understand. I am not that expert in that so I couldn't figure out what is wrong with my code. Path is correct and file is there. Maybe I am calling this command wrong or what ?

  



  I searched google and stack overflow much but nothing helped me solve it. Any help would be appreciated.

  



  04-20 12:08:26.050 12696-12696/com.example.myapplication E/Video to Mp3: Input File Path: 
/storage/emulated/0/Download/Ab.mp4
04-20 12:08:26.050 12696-12696/com.example.myapplication E/Video to Mp3: Output File Path: 
/storage/emulated/0/Download/Ab1.avi
04-20 12:08:26.050 12696-12696/com.example.myapplication E/Video to Mp3: Device not supported
04-20 12:08:26.050 12696-12696/com.example.myapplication E/Video to Mp3: onStart called
04-20 12:08:26.084 12696-13027/com.example.myapplication E/FFmpeg: Exception while trying to run: 
/data/user/0/com.example.myapplication/files/ffmpeg -i /storage/emulated/0/Download/Ab.mp4 
/storage/emulated/0/Download/Ab1.avi
java.io.IOException: Error running exec(). Command: [/data/user/0/com.example.myapplication/files/ffmpeg, -i, /storage/emulated/0/Download/Ab.mp4, /storage/emulated/0/Download/Ab1.avi] Working Directory: null Environment: null
    at java.lang.ProcessManager.exec(ProcessManager.java:211)
    at java.lang.Runtime.exec(Runtime.java:186)
    at java.lang.Runtime.exec(Runtime.java:259)
    at java.lang.Runtime.exec(Runtime.java:202)
    at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10)
    at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38)
    at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10)
    at android.os.AsyncTask$2.call(AsyncTask.java:307)
    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
    at java.lang.Thread.run(Thread.java:833)
 Caused by: java.io.IOException: No such file or directory
    at java.lang.ProcessManager.exec(Native Method)
    at java.lang.ProcessManager.exec(ProcessManager.java:209)
    at java.lang.Runtime.exec(Runtime.java:186) 
    at java.lang.Runtime.exec(Runtime.java:259) 
    at java.lang.Runtime.exec(Runtime.java:202) 
    at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) 
    at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) 
    at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) 
    at android.os.AsyncTask$2.call(AsyncTask.java:307) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:246) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
    at java.lang.Thread.run(Thread.java:833) 
04-20 12:08:26.084 12696-12696/com.example.myapplication E/Video to Mp3: onFinish called