Recherche avancée

Sur d’autres sites (4310)

• libavcodec/avcodec.h : No such file or directory(ffmpeg with android studio)

  14 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/ and 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 := libavcodec
  
  
  
  include $(BUILD_SHARED_LIBRARY)
  
  $(call import-module,ffmpeg-3.0.1/android/arm)

  and $NDK/sources/ffmpeg/android/arm/Android.mk is :

  LOCAL_PATH:= $(call my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE:= libavcodec
  
  LOCAL_SRC_FILES:= lib/libavcodec-57.so
  
  LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
  
  include $(PREBUILT_SHARED_LIBRARY)

  I updated my build.gradle like this and successfully generated jniLibs with .so files but I am getting libavcodec/avcodec.h : No such file or directory while building project.

  import org.apache.tools.ant.taskdefs.condition.Os
  
  
  
  apply plugin: 'com.android.model.application'
  
  
  
  model {
  
      android {
  
          compileSdkVersion = 23
  
          buildToolsVersion = "23.0.2"
  
  
  
          defaultConfig.with {
  
              applicationId = "com.example.spartan.hello"
  
              minSdkVersion.apiLevel = 18
  
              targetSdkVersion.apiLevel = 23
  
              versionCode = 1
  
              versionName = "1.0"
  
          }
  
      }
  
      android.buildTypes {
  
          release {
  
              minifyEnabled = false
  
              proguardFiles.add(file('proguard-android.txt'))
  
          }
  
      }
  
  
  
      android.sources {
  
          main {
  
              jni {
  
                  source {
  
                      srcDirs = []
  
                  }
  
  
  
              }
  
  
  
          }
  
  
  
          main {
  
              jniLibs {
  
                  source {
  
                      srcDirs = ['src/main/libs']
  
                  }
  
              }
  
          }
  
  
  
      }
  
  
  
      android.ndk {
  
          moduleName = "tutorial01"
  
          stl = 'gnustl_shared'
  
      }
  
  }
  
  
  
  
  
  task ndkBuild(type: Exec) {
  
      if (Os.isFamily(Os.FAMILY_WINDOWS)) {
  
          commandLine 'ndk-build.cmd', '-C', file('src/main').absolutePath
  
      } else {
  
          commandLine 'ndk-build', '-C', file('src/main').absolutePath
  
      }
  
  }
  
  tasks.withType(JavaCompile) {
  
      compileTask -> compileTask.dependsOn ndkBuild
  
  }
  
  
  
  dependencies {
  
      compile fileTree(include: ['*.jar'], dir: 'libs')
  
      testCompile 'junit:junit:4.12'
  
      compile 'com.android.support:appcompat-v7:23.2.1'
  
  }

  and loading them in my activity like this :

  static {
  
          System.loadLibrary("tutorial01");     
  
          System.loadLibrary("avcodec-57");   
  
      }

  This is the output I am getting(you can see on left side .so files are generated and header error in the right side of the image).
  

  I am new to NDK so, Is it ok if we manually paste header files in jni folder ?

• 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']
  
              }
  
          }
  
      }
  
  
  
  }

• Detect rotation angle and rotate final video using ffmpeg version 2.8

  3 février 2016, par Hemant Kumar

  I used to work on ffmpeg 2.2 until now and was detecting rotation angle of video uploaded from android / iPhone mobiles and rotate the resulting video so that it run perfectly on a correct angle.

  But since I have updated the ffmpeg to version 2.8 I am getting this rotation problem. My queries are not rotating the videos as they were earlier.

  Here’r the commands I was using :

  To check rotation angle :

  ffprobe -of json -show_streams {$input} | grep rotate

  below is my final command to convert a video to mp4

  "ffmpeg -i {$input} -strict -2 -vcodec libx264 -preset slow -vb 500k -maxrate 500k -bufsize 1000k -vf 'scale=-1:480 ".fix_video_orientation($input)."' -threads 0 -ab 64k -s {$resolution}  -movflags faststart -metadata:s:v:0 rotate=0 {$output}";

  "fix_video_orientation" function is given below. It detect the angle of rotation of the initial video and output optimal option for rotating the final video.

  function fix_video_orientation($input){
  
  
  
  $return= ", transpose=1 ";
  
  
  
  $dd= exec("ffprobe -of json -show_streams  {$input}   | grep rotate");
  
  
  
  if(!empty($dd)){
  
  
  
  $dd=explode(":",$dd);
  
  $rotate=str_replace(",","",str_replace('"',"",$dd[1]));
  
  
  
  if($rotate=="90")return $return;
  
  
  
  else if ($rotate=="180") return ", transpose=2,transpose=2 ";
  
  
  
  else if($rotate == "270") return ", transpose=2 ";
  
  }

  Currently above script is supporting "flv","avi","mp4","mkv","mpg","wmv","asf","webm","mov","3gp","3gpp" extensions, also the script is supporting the resulting .mp4 file to play on all browsers and devices.

  Now the ffprobe command is not returning rotation angle and so a portrait video if uploaded from iphone is showing as landscape on the website.

  Output console of ffprobe command :

  ffprobe version N-77455-g4707497 Copyright (c) 2007-2015 the FFmpeg developers
  
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libfreetype --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
  
  libavutil 55. 11.100 / 55. 11.100
  
  libavcodec 57. 20.100 / 57. 20.100
  
  libavformat 57. 20.100 / 57. 20.100
  
  libavdevice 57. 0.100 / 57. 0.100
  
  libavfilter 6. 21.101 / 6. 21.101
  
  libavresample 3. 0. 0 / 3. 0. 0
  
  libswscale 4. 0.100 / 4. 0.100
  
  libswresample 2. 0.101 / 2. 0.101
  
  libpostproc 54. 0.100 / 54. 0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/standard/PORTRAIT.m4v':
  
  Metadata:
  
  major_brand : qt
  
  
  
  minor_version : 0
  
  compatible_brands: qt
  
  
  
  creation_time : 2016-02-03 05:25:18
  
  com.apple.quicktime.make: Apple
  
  com.apple.quicktime.model: iPhone 4S
  
  com.apple.quicktime.software: 9.2.1
  
  com.apple.quicktime.creationdate: 2016-02-03T10:52:11+0530
  
  Duration: 00:00:03.34, start: 0.000000, bitrate: 7910 kb/s
  
  Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
  
  Metadata:
  
  creation_time : 2016-02-03 05:25:18
  
  handler_name : Core Media Data Handler
  
  Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 720x1280 [SAR 1:1 DAR 9:16], 7832 kb/s, 29.97 fps, 29.97 tbr, 600 tbn, 50 tbc (default)
  
  Metadata:
  
  creation_time : 2016-02-03 05:25:18
  
  handler_name : Core Media Data Handler
  
  encoder : H.264
  
  Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
  
  Metadata:
  
  creation_time : 2016-02-03 05:25:18
  
  handler_name : Core Media Data Handler
  
  Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
  
  Metadata:
  
  creation_time : 2016-02-03 05:25:18
  
  handler_name : Core Media Data Handler
  
  Unsupported codec with id 0 for input stream 2
  
  Unsupported codec with id 0 for input stream 3

  If latest version of ffmpeg (2.8) is used to auto rotate the video, can you please suggest me what option I need to add or remove from my final command.