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• Android : Not able to merge two audio files using ffmpeg Android (onFailure)

  1er avril 2019, par Asif Sb

  I am trying to merge two wav audio files into one using FFMPEG library.

  Here is the command I used for merging two audio files.

  String s = "ffmpeg -i "+recordFile+" -i "+audioFromVideo+" -filter_complex amix=inputs=3:duration=first:dropout_transition=3 "+finalAudio;

  Below is my audio merger code :

  public void mergeMediaFiles(Context context,String[] cmd) {
  
              FFmpeg ffmpeg = FFmpeg.getInstance(context);
  
              try {
  
                  try {
  
                      //Load the binary
  
                      ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
  
  
  
                          @Override
  
                          public void onStart() {
  
                          }
  
  
  
                          @Override
  
                          public void onFailure() {
  
                          }
  
  
  
                          @Override
  
                          public void onSuccess() {
  
                          }
  
  
  
                          @Override
  
                          public void onFinish() {
  
                          }
  
                      });
  
                  } catch (FFmpegNotSupportedException e) {
  
                      // Handle if FFmpeg is not supported by device
  
                  }
  
                  // to execute "ffmpeg -version" command you just need to pass "-version"
  
                  ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
  
  
                      @Override
  
                      public void onStart() {
  
                          Log.d("ttt", "onStart:merge ");
  
                      }
  
  
  
                      @Override
  
                      public void onProgress(String message) {
  
                          Log.d("ttt", "onProgress: merge");
  
                      }
  
  
  
                      @Override
  
                      public void onFailure(String message) {
  
                          Log.d("ttt", "onFailure: stock down");
  
                      }
  
  
  
                      @Override
  
                      public void onSuccess(String message) {
  
                          Log.d("ttt", "onSuccess: stock up");
  
                          File file= new File(finalAudio);
  
                          if (file.exists()) {
  
                              Log.d(TAG, "onPostExecute: mila bhai");
  
                              startPlaying(file.getPath());
  
                          }
  
                      }
  
  
  
                      @Override
  
                      public void onFinish() {
  
                          Log.d("ttt", "onFinish: merge ");
  
                      }
  
                  });
  
              } catch (FFmpegCommandAlreadyRunningException e) {
  
                  //
  
              }
  
          }
  
  
  
      }

  When I try to run this code. It always triggers failure callback.
  I just wanted to understand what is the issue with the command and merger code ?

• HD video play in ffmpeg android player

  8 juillet 2017, par Melvin Wong

  I have developed android mediaplayer by using ffmpeg.
  It is working well with local and remote files both.

  But it has some issues when i try to play HD video files.
  The screen shows many rectangles and stopped after a few seconds.

  I think it is video rendering problem on low performance devices.
  In this case, I need to skip some frames and play.

  Please help me whether my thought is right or if you have already experienced this , please teach me.

• Android - Integrating ffmpeg and android-ndk-r9c

  16 juillet 2015, par lgdroid57

  I have seen a lot of posts about FFmpeg and using FFmpeg in Android, but I am finding that a majority of these posts are for older versions of either FFmpeg or Android NDK. I was able to get a result from https://github.com/mconf/android-ffmpeg, which includes the files : "libavcodec.so", "libavformat.so", "libavutil.so", "libswscale.so". However, simply adding these files to my project does not seem to be enough to use FFmpeg. (I followed http://stackoverflow.com/a/21773572/1877798 as a reference guide). It’s possible that either I’ve done something wrong in configuring these files in my project, or I’ve done something wrong in building FFmpeg for Android. (Should there be more files ?)

  I was wondering if there are any recent guides for building or integrating FFmpeg in an Android project. I am using FFmpeg (as of 2/27/14) and Android NDK 9c.
  If not, does anyone have other recommendations for other libraries ? I am trying to take a set of image files and create a video/animated gif programatically.

  Thanks ! :-)

   EDIT 

  I have found http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/comment-page-4/ and a couple others found on GitHub. However, they all seem to struggle in building FFmpeg. I am using Mac OS X

  Here is my script :

  #!/bin/bash
  
  NDK=/Downloads/android-ndk-r9c
  
  SYSROOT=$NDK/platforms/android-18/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/darwin-x86_64
  
  # Note: Change the TOOLCHAIN to match that available for your host system.
  
  # darwin-x86_64 is for Mac OS X, but you knew that.
  
  function build_one
  
  {
  
  ./configure \
  
      --prefix=$PREFIX \
  
      --enable-shared \
  
      --disable-static \
  
      --disable-doc \
  
      --disable-programs \
  
      --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

  Here is the log :

  Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-        dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1
  
  Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1
  
  /Downloads/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-gcc is unable to create an executable file.
  
  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 "config.log" produced by configure as this will help
  
  solving the problem.
  
  Makefile:2: config.mak: No such file or directory
  
  Makefile:48: /common.mak: No such file or directory
  
  Makefile:91: /libavutil/Makefile: No such file or directory
  
  Makefile:91: /library.mak: No such file or directory
  
  Makefile:168: /doc/Makefile: No such file or directory
  
  Makefile:169: /tests/Makefile: No such file or directory
  
  make: *** No rule to make target `/tests/Makefile'.  Stop.
  
  Makefile:2: config.mak: No such file or directory
  
  Makefile:48: /common.mak: No such file or directory
  
  Makefile:91: /libavutil/Makefile: No such file or directory
  
  Makefile:91: /library.mak: No such file or directory
  
  Makefile:168: /doc/Makefile: No such file or directory
  
  Makefile:169: /tests/Makefile: No such file or directory
  
  make: *** No rule to make target `/tests/Makefile'.  Stop.
  
  Makefile:2: config.mak: No such file or directory
  
  Makefile:48: /common.mak: No such file or directory
  
  Makefile:91: /libavutil/Makefile: No such file or directory
  
  Makefile:91: /library.mak: No such file or directory
  
  Makefile:168: /doc/Makefile: No such file or directory
  
  Makefile:169: /tests/Makefile: No such file or directory
  
  make: *** No rule to make target `/tests/Makefile'.  Stop.