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• Too many FFMPEG process

  21 avril 2014, par Mrslipp3ry

  I have a list of video files and I want to convert them with ffmpeg. This is my code :

      public static void ConvertToMp3(String inputPath, String title)
  
      {
  
          String outputpath = "\"D:\\Mp3\\" + title + ".mp3\"";
  
  
  
          String _out;
  
          Process p = new Process();
  
  
  
          p.StartInfo.UseShellExecute = false;
  
          p.StartInfo.RedirectStandardInput = true;
  
          p.StartInfo.RedirectStandardOutput = true;
  
          p.StartInfo.RedirectStandardError = true;
  
          p.StartInfo.CreateNoWindow = true;
  
          p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
  
          p.StartInfo.FileName = "ffmpeg";
  
          p.StartInfo.Arguments = " -i \"" + inputPath + "\" -vn -f mp3 -ab 192k " + outputpath;
  
  
  
          p.Start();
  
          p.StandardOutput.ReadToEnd();
  
          _out = p.StandardError.ReadToEnd();
  
          p.WaitForExit();
  
  
  
          if(!p.HasExited)
  
              p.Kill();
  
  
  
          Console.WriteLine(_out);   
  
      }

  It works fine, but when I call this function in a loop for n times, it opens too many processes. I want to open only one process at a time and when it’s done, go to the next.

• Grab frame without downloading whole file ?

  12 janvier 2012, par Writecoder

  Is this possible using php + ffmpeg ?

  ffmpeg-php has the ability to :

  Ability to grab frames from movie files and return them as images that
  can be manipulated using PHP's built-in image functions. This is great
  for automatically creating thumbnails for movie files.

  I just don't want to download the whole file before doing so.
  So lets say i want to grab a frame @ 10% of the movie :

  First lets get the size of remote file :

  $ch = curl_init(); 
  
  curl_setopt($ch, CURLOPT_HEADER, true); 
  
  curl_setopt($ch, CURLOPT_NOBODY, true);
  
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 
  
  curl_setopt($ch, CURLOPT_URL, $url); //specify the url
  
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); 
  
  $head = curl_exec($ch);
  
  
  
  $size = curl_getinfo($ch,CURLINFO_CONTENT_LENGTH_DOWNLOAD);

  Then it's quite easy to download only 10% of the .flv or .mov file using curl.

  But the framegrab trick using ffmpeg-php probably won't work because the file probably is corrupted ?

  Any other ideas ?

• Command build failed ndk

  1er janvier 2021, par ALI RAZA

  I want to integrate ffmpeg lib in my android app . So i am using ndk ,but i am stuck on this issue,I dont know why the error is appearing ,Thanks in advance ;

  


  It is the gradle code that i am using in my app and also the ffmpeg-android-maker path is provided

  


  plugins {
id 'com.android.application'


  


  


  android 
compileSdkVersion 30
buildToolsVersion "30.0.3"

  


  defaultConfig {
    applicationId "com.reactive.myapplication"
    minSdkVersion 16
    targetSdkVersion 30
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    externalNativeBuild {
        cmake {
            cppFlags ""
        }
    }
}
flavorDimensions "market"
productFlavors {
    google {
        dimension "market"
        ndk {
            // Since the App Bundle is used, there is no problem in packaging all these ABIs
            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
        }
    }
    amazon {
        dimension "market"
        applicationIdSuffix ".amzn"
        ndk {
            // Amazon Appstore doesn't support multiple APKs for non-Amazon devices.
            // There is no point in x86 support here, as the majority of devices with the
            // Amazon Appstore are ARM-based. And it seems to be a common practice for other
            // apps in this market.
            abiFilters 'armeabi-v7a'
        }
    }
    huawei {
        dimension "market"
        applicationIdSuffix ".huawei"
        ndk {
            // Huawei App Gallery supports App Bundle format
            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
        }
    }
}
sourceSets {
    main {
        // let gradle pack the shared library into the apk
        jniLibs.srcDirs = ['../ffmpeg-android-maker/output/lib']
    }
}

bundle {
    language {
        enableSplit = true
    }
    density {
        enableSplit = true
    }
    abi {
        enableSplit = true
    }
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}
externalNativeBuild {
    cmake {
        path "src/main/cpp/CMakeLists.txt"
        version "3.10.2"
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8

    targetCompatibility JavaVersion.VERSION_1_8
}


  


  


  dependencies

  


  implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'com.google.android.material:material:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'


  


  


  And It is cmake ,


  


  And this is error i am facing :
Build command failed.
Error while executing process /home/ali/Android/Sdk/cmake/3.10.2.4988404/bin/ninja with arguments -C /home/ali/AndroidStudioProjects/FfmpegApp/app/.cxx/cmake/amazonDebug/armeabi-v7a native-lib
ninja : Entering directory `/home/ali/AndroidStudioProjects/FfmpegApp/app/.cxx/cmake/amazonDebug/armeabi-v7a'

  


  ninja : error : '/home/ali/AndroidStudioProjects/FfmpegApp/app/src/main/ffmpeg-android-maker/output/lib/armeabi-v7a/libavutil.so', needed by '/home/ali/AndroidStudioProjects/FfmpegApp/app/build/intermediates/cmake/amazonDebug/obj/armeabi-v7a/libnative-lib.so', missing and no known rule to make it