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• FFMPEG with Gradle Experimental Android plugin

  12 avril 2016, par Spartan

  I extracted ffmpeg in ndk’s source folder then compiled it there only for that I followed this :http://www.roman10.net/2013/08/18/how-to-build-ffmpeg-with-ndk-r9/

  So I successfully(generated android folder with arm/lib and arm/include files).

  After that I created one Android.mk file in $NDK/sources/ffmpeg/android/arm and one Android.mk in my android project(src/main/jni folder).

  My src/main/jni/Android.mk is like this :

  LOCAL_PATH := $(call my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  LOCAL_MODULE    := tutorial01
  
  LOCAL_SRC_FILES := tutorial01.c
  
  LOCAL_LDLIBS := -llog -ljnigraphics -lz
  
  LOCAL_SHARED_LIBRARIES := libavformat libavcodec libswscale libavutil
  
  
  
  include $(BUILD_SHARED_LIBRARY)
  
  $(call import-module,ffmpeg-3.0.1/android/arm)

  Now I stuck here and trying to put these details in build.gradle files like showing in this documentation :
  http://tools.android.com/tech-docs/new-build-system/gradle-experimental

  for example :

  model {
  
  
  
      repositories {
  
  
  
          libs(PrebuiltLibraries) {
  
  
  
              prebuilt {
  
  
  
                  headers.srcDir "path/to/headers"
  
  
  
                  binaries.withType(SharedLibraryBinary) {
  
  
  
                      sharedLibraryFile = file("lib/${targetPlatform.getName()}/prebuilt.so")
  
  
  
                  }
  
  
  
              }
  
  
  
          }
  
  
  
      }
  
  
  
      android.sources {
  
          main {
  
              jniLibs {
  
                  dependencies {
  
                      library "prebuilt"
  
                  }
  
              }
  
          }
  
      }
  
  }

  But not able transform exact Android.mk(src/main/jni) to this and apart from it I have one more Android.mk in my android/arm folder so how I can call this makefile or should I put that details also in my build.gradle like above.

  I tried like this and using ndk-build command successfully generated jniLibs with .so files but I am getting libavcodec/avcodec.h : No such file or directory while building project.

  android.sources {
  
      main {
  
          jni {
  
              source {
  
                  srcDirs = ['src/main/myJni']
  
              }
  
  
  
          }
  
  
  
      }
  
  
  
      main {
  
          jniLibs {
  
              source {
  
                  srcDirs = ['src/main/libs']
  
              }
  
          }
  
      }
  
  
  
  }

• iPhone video conversion to Android supported format using FFMPEG

  21 janvier 2016, par Muhammad Umar

  I have an iPhone video created as follow

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid.mp4':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      creation_time   : 2016-01-20 09:21:08
  
      make            : Apple
  
      make-eng        : Apple
  
      encoder         : 8.2
  
      encoder-eng     : 8.2
  
      date            : 2016-01-20T14:20:57+0500
  
      date-eng        : 2016-01-20T14:20:57+0500
  
      model           : iPhone 5
  
      model-eng       : iPhone 5
  
    Duration: 00:00:10.80, start: 0.000000, bitrate: 765 kb/s
  
      Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-01-20 09:21:08
  
        handler_name    : Core Media Data Handler
  
      Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 320x320, 696 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        creation_time   : 2016-01-20 09:21:08
  
        handler_name    : Core Media Data Handler
  
        encoder         : H.264

  I want to convert it into Android support format so that all iPhone and maximum androids can read it.

  However if i convert to mpeg4 format using

  ffmpeg -i vid.mp4 -s 320x320 -vcodec mpeg4 -acodec aac -strict -2 -ac 2 -ar 44100 -ab 128k output.mp4

  it really degrades the quality

  How can i set the ffmpeg to create atleast as close as possible quality which runs on both android and iPhone

• how to upload a video to google driver use paperclip or carriwave

  14 janvier 2016, par bách trần nguyên

  i want to upload video to google driver.
  code models
  video model

  class Video < ActiveRecord::Base
  
    has_attached_file :video,
  
     :storage => :google_drive,
  
     :google_drive_credentials => {:client_id => AppConfig.gg_drive.client_id,
  
                                :client_secret => AppConfig.gg_drive.client_secret,
  
                                :refresh_token => AppConfig.gg_drive.refresh_token,
  
                                :scope => AppConfig.gg_drive.scope,
  
                                :access_token => Token.cache_access_token_google_drive
  
                                },
  
    :styles => {
  
      :medium => {
  
        :geometry => "640x480",
  
        :format => 'mp4'
  
      },
  
      :thumb => { :geometry => "160x120", :format => 'jpeg', :time => 10} 
  
    },# hello 123
  
    :processors => [:transcoder],
  
    :google_drive_options => {
  
      :path => proc { |style| "#{style}_#{id}_#{image.original_filename}" },
  
      :public_folder_id => '0B0VNyOkzIwUZZFFGeVhycFk0dnc'
  
    }
  
  end

  in Gemfile

  gem 'google-api-client'
  
  gem 'paperclip'
  
  gem 'paperclip-googledrive'
  
  gem 'paperclip-av-transcoder'
  
  gem "paperclip-ffmpeg"

  in controller

  def create
  
      if params[:videos]
  
        params[:videos].each { |video| Video.create(video: video) }
  
      end
  
  end

  when i run , this display error

  [AV] Running command : if command -v avprobe 2>/dev/null ; then echo "true" ; else echo "false" ; fi
  [AV] Running command : if command -v ffmpeg 2>/dev/null ; then echo "true" ; else echo "false" ; fi
  Av::UnableToDetect in AlbumsController#create
  Unable to detect any supported library

  pls. how to fix this errors