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• Error:No such property : targetPlatform for class : com.android.build.gradle.managed.NdkConfig

  30 juillet 2016, par Alder

  I am trying to build FFMPEG into my JNI code with gradle in Android Studio. I have build FFMPEG as a .so file, in order to adapt different platform, I build it for different ABI(arm64-v8a, armeabi-v7a, mip, etc).Then I need to determine the ABI of the current build in the build.gradle file.

  Refer Experimental Plugin User Guide, my build.gradle look like this :

  apply plugin: 'com.android.model.native'    
  
  model{
  
      repositories {
  
          prebuilt(PrebuiltLibraries){
  
              ffmpeg{
  
                  headers.srcDir "src/main/jni/build/${targetPlatform.getName()}/include"
  
                  binaries.withType(SharedLibraryBinary) {
  
                      sharedLibraryFile = file("src/main/jni/build/${targetPlatform.getName()}/libvflibrary.so")
  
                  }
  
              }
  
          }
  
      }
  
      android {
  
          compileSdkVersion = 24
  
          buildToolsVersion = "23.0.3"
  
  
  
          defaultConfig {
  
              minSdkVersion.apiLevel = 15
  
              targetSdkVersion.apiLevel = 24
  
              versionCode = 1
  
              versionName = "1.0"
  
          }
  
  
  
          ndk{
  
              //platformVersion = 21
  
              moduleName = "library-jni"
  
              stl = 'gnustl_static'
  
              toolchain = "clang"
  
              abiFilters.addAll(['armeabi', 'armeabi-v7a', 'arm64-v8a', 'mips'])
  
              cppFlags.addAll(['-std=c++11', '-D__STDC_CONSTANT_MACROS'])
  
              ldLibs.addAll(['log', 'android', 'z', 'EGL', 'GLESv2'])
  
          }
  
  
  
          sources {
  
              main {
  
                  jni {
  
                      source{
  
                          srcDirs 'src/main/jni'
  
                      }
  
                      dependencies {
  
                          library 'ffmpeg' linkage 'shared'
  
                      }
  
                  }
  
              }
  
          }
  
      }
  
  }

  I am getting an error :

  Error:No such property : targetPlatform for class :
  com.android.build.gradle.managed.NdkConfig.

  Does anyone have an idea on how I can solve this, please ?

• How run subprocess in Python 3 on windows for convert video ?

  31 août 2016, par Diego F. Ruiz S.

  I have a little problem, I have trying for a lot time converted a video with FFMPEG in python 3 like this :

  The model,

  class Video(models.Model):
  
     name = models.CharField(max_length=200, null=False)
  
     state = models.CharField(max_length=30, null=False)
  
     user_email = models.CharField(max_length=30, null=False)
  
     uploadDate = models.DateTimeField(null=False)
  
     message = models.CharField(max_length=200, null=False)
  
     original_video = models.FileField(upload_to='video', null=True)
  
     converted = models.BooleanField(default=False)

  And the code of converted.

  video = Video.objects.filter(id=param_id).get()
  
  pathConverted = 'C:\\Users\\diego\\Documents\\GitHub\\convertido.mp4'
  
  cmd = ['ffmpeg', '-i ', video.original_video.path, ' -b 1500k -vcodec ibx264 -g 30', pathConverted]
  
  print('Ejecutando... ', ' '.join(cmd))
  
  try:
  
      proc = subprocess.run(cmd, shell=True, check=True)
  
      proc.subprocess.wait()
  
  except subprocess.CalledProcessError as e:
  
      raise RuntimeError("command '{}' return with error (code {}): {}".format(e.cmd, e.returncode, e.output))

  The error is this.

   raise RuntimeError("command '{}' return with error (code {}): {}".format(e.cmd, e.returncode, e.output)) RuntimeError: command '['ffmpeg', '-i ', 'C:\\Users\\diego\\Documents\\GitHub\\video1.avi', ' -b 1500k -vcodec libx264 -g 30', 'C:\\Users\\diego\\Documents\\GitHub\\convertido.mp4']' return with error (code 1): None

  And also I have tried this :

  video = Video.objects.filter(id=1).get()
  
  pathConverted = 'C:\\Users\\diego\\Documents\\GitHub\\convertido.mp4'
  
  cmd = ['ffmpeg', '-i ', video.original_video.path, ' -b 1500k -vcodec libx264 -g 30', pathConverted]
  
  print('Ejecutando... ', ' '.join(cmd))
  
  proc = subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
  
  proc.subprocess.wait()

  In this case the error is :

  FileNotFoundError: [WinError 2] No such file or directory

  But when I copy the path and paste this in CMD on windows for try this converted the video. It works fine.

  Then, I am confused, I don’t understand what is the error.

  Somebody can help me please ?

• MVC - Audio Convert file from M4A to MP3

  17 octobre 2016, par Matheus Miranda

  In my application I upload an audio file type MP4 from a windows explorer and save it in data base SQL in field VARBINARY. It is OK. I would like to convert it to MP3 before insert in my DB, for these I am using a FFMPEG but i am not able to get success. Can anybody help me ?

  Below is the screenshot where we can see the file and type in my application.

  

  Is possible to use a FFMPEG reading the file directly from MODEL ? Parameter : FileName ?

  What is the best way to convert a audio file as mentioned above via MVC program ?

  Thanks for any suggestion or help.

  Best Regards,