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• How to fix "FFmpeg command cannot work when multiple mp3 file to process into one" on server side

  9 février 2019, par Harshil Dholakiya

  I am using FFmpeg in my php yii2 project. FFmpeg working fine in my project but one major problem is execute FFmpeg command with multiple input file. When i try to use single file to process in ffmpeg command then it works. so, how can i fix this problem ? I am using hostGator shared plan for my project. Please, help if is there any process limit or file open limit on server that i don’t know.

  I have tried using this command in php exec() :

  ffmpeg -y -i /uploads/ac/10122018-09351115-a94rlvlawvikskb4vdrca.mp3 -i /uploads/ac/09012019-035928988-assknyrk8oujccwevir7.mp3 -f lavfi -i anullsrc -filter_complex "[2]atrim=duration=3[g0];[2]atrim=duration=1[g1];[2]atrim=duration=5[g2];[g0][0][g1][1][g2]concat=n=5:v=0:a=1" /uploads/jm/concat.mp3 2>&1

  Above command works local side but not working on server side.

  output on server side with error code 1:
  
  Press [q] to stop, [?] for help
  
  pthread_create failed: Resource temporarily unavailable. Try to increase `ulimit -v` or decrease `ulimit -s`.
  
  Conversion failed!

  ---

  ulimit -v
  
  unlimited
  
  
  
  ulimit -s
  
  15240

• How can I create a stream of my screen on a Windows computer for another device on my network ? [on hold]

  30 novembre 2018, par user279040

  I want to view what is seen on my Windows laptop screen on my tv, which is connected to a device running enigma 2, "screen mirroring". There are no software or plugins that will work on the device for this.

  However the device can play live stream urls of the form :

  http://portal.geniptv.com:8080/live#/abc1/abc2/19517.ts

  I am thinking maybe I could get something to create an expanding .ts file that’s capturing the screen, and then serve this up through http?

  It may also be able to use other protocols like udp :// or other file extensions, I would certainly give them a shot if they reduced lag.

  I spent hours installing different streaming software, none of which worked. I am just looking for a simple solution where I might give ffmpeg a command and it would do all I require. I have python installed as well if I need that to for example set up a http server.

• Android ffmpeg. Linker command failed with exit code 1

  8 juin 2017, par Wilsom Sanders

  I’m trying to build ffmpeg static libraries and link them to an android project in order to implement a video player. Goal is to make a player capable of receiving video file from various sources similar to p2p file sharing networks. (target api is 21 level which is 1 level short from supposed official solution with MediaSource)

  I managed to compile ffmpeg from this repo (all the code used as-is) but later i got stuck on a linking problem. Whenever I try to compile I get list of ffmpeg methods called in my code and a short eloquent message :

  Linker command failed with exit code 1

  I have no clue how to pass -v flag to the linker in android studio. Would be great if somebody hinted me that.

  I use android studio, build with gradle and cmake.

  There’s my files :
  build.gradle (Project)

  // Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  
  
  buildscript {
  
      repositories {
  
          jcenter()
  
      }
  
      dependencies {
  
          classpath 'com.android.tools.build:gradle:2.3.1'
  
  
  
          // NOTE: Do not place your application dependencies here; they belong
  
          // in the individual module build.gradle files
  
      }
  
  }
  
  
  
  allprojects {
  
      repositories {
  
          jcenter()
  
      }
  
  }
  
  
  
  task clean(type: Delete) {
  
      delete rootProject.buildDir
  
  }

  build.gradle (Module)

  apply plugin: 'com.android.application'
  
  
  
      android {
  
          compileSdkVersion 25
  
          buildToolsVersion "25.0.3"
  
          productFlavors {
  
              x86 {
  
                  ndk {
  
                      abiFilter "x86"
  
                  }
  
              }
  
              arm {
  
                  ndk {
  
                      abiFilters "armeabi-v7a"
  
                  }
  
              }
  
              armv7 {
  
                  ndk {
  
                      abiFilters "armeabi-v7a"
  
                  }
  
              }
  
          }
  
          defaultConfig {
  
              applicationId "com.example.ledo.ndkapplication"
  
              minSdkVersion 22
  
              targetSdkVersion 25
  
              versionCode 1
  
              versionName "1.0"
  
              testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  
              externalNativeBuild {
  
                  cmake {
  
                      cppFlags "-std=c++11 -frtti -fexceptions"
  
                      arguments '-DANDROID_PLATFORM=android-16'
  
                  }
  
              }
  
          }
  
          buildTypes {
  
              release {
  
                  minifyEnabled false
  
                  proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
  
              }
  
          }
  
          externalNativeBuild {
  
              cmake {
  
                  path "CMakeLists.txt"
  
              }
  
          }
  
          splits {
  
              abi {
  
                  enable true
  
                  reset()
  
                  include 'x86', 'armeabi-v7a'
  
                  universalApk true
  
              }
  
          }
  
      }
  
  
  
      dependencies {
  
          compile fileTree(dir: 'libs', include: ['*.jar'])
  
          androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
  
              exclude group: 'com.android.support', module: 'support-annotations'
  
          })
  
          compile 'com.android.support:appcompat-v7:25.3.1'
  
          compile 'com.android.support.constraint:constraint-layout:1.0.2'
  
          compile 'com.android.support:design:25.3.1'
  
          compile 'com.writingminds:FFmpegAndroid:0.3.2'
  
          testCompile 'junit:junit:4.12'
  
      }

  CMakeLists.txt

  # For more information about using CMake with Android Studio, read the
  
  # documentation: https://d.android.com/studio/projects/add-native-code.html
  
  
  
  # Sets the minimum version of CMake required to build the native library.
  
  
  
  cmake_minimum_required(VERSION 2.8)
  
  
  
  # Creates and names a library, sets it as either STATIC
  
  # or SHARED, and provides the relative paths to its source code.
  
  # You can define multiple libraries, and CMake builds them for you.
  
  # Gradle automatically packages shared libraries with your APK.
  
  
  
  add_library( # Sets the name of the library.
  
               native-lib
  
  
  
               # Sets the library as a shared library.
  
               SHARED
  
  
  
               # Provides a relative path to your source file(s).
  
               src/main/cpp/native-lib.cpp
  
               src/main/cpp/NativePlayer.h
  
               src/main/cpp/NativePlayer.cpp)
  
  
  
  # Searches for a specified prebuilt library and stores the path as a
  
  # variable. Because CMake includes system libraries in the search path by
  
  # default, you only need to specify the name of the public NDK library
  
  # you want to add. CMake verifies that the library exists before
  
  # completing its build.
  
  
  
  find_library( # Sets the name of the path variable.
  
                log-lib
  
  
  
                # Specifies the name of the NDK library that
  
                # you want CMake to locate.
  
                log )
  
  find_library(png-lib png)
  
  
  
  # Specifies libraries CMake should link to your target library. You
  
  # can link multiple libraries, such as libraries you define in this
  
  # build script, prebuilt third-party libraries, or system libraries.
  
  
  
  #avcodec
  
  #avfilter
  
  #avformat
  
  #avutil
  
  #swresample
  
  #swscale
  
  
  
  #${ANDROID_ABI}
  
  
  
  message(${ANDROID_ABI})
  
  set(FFMPEG_ROOT_DIR src/main/libs/ffmpeg/${ANDROID_ABI})
  
  
  
  add_library(avcodec STATIC IMPORTED)
  
  add_library(avformat STATIC IMPORTED)
  
  add_library(avfilter STATIC IMPORTED)
  
  add_library(avutil STATIC IMPORTED)
  
  add_library(swresample STATIC IMPORTED)
  
  add_library(swscale STATIC IMPORTED)
  
  
  
  #SET_TARGET_PROPERTIES(avcodec PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(avcodec PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libavcodec.a)
  
  #SET_TARGET_PROPERTIES(avfilter PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(avfilter PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libavfilter.a)
  
  #SET_TARGET_PROPERTIES(avformat PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(avformat PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libavformat.a)
  
  #SET_TARGET_PROPERTIES(avutil PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(avutil PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libavutil.a)
  
  #SET_TARGET_PROPERTIES(swresample PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(swresample PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libswresample.a)
  
  #SET_TARGET_PROPERTIES(swscale PROPERTIES LINKER_LANGUAGE C)
  
  set_target_properties(swscale PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib/libswscale.a)
  
  
  
  include_directories( ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/include )
  
  include_directories( ${CMAKE_CURRENT_SOURCE_DIR}/${FFMPEG_ROOT_DIR}/lib )
  
  target_link_libraries( # Specifies the target library.
  
                         native-lib
  
  
  
                         # Links the target library to the log library
  
                         # included in the NDK.
  
                         ${log-lib}
  
                         avcodec
  
                         avformat
  
                         #avfilter
  
                         #swresample
  
                         #swscale
  
                         #avutil
  
                         GLESv2)

  I have .a files in following locations :
  %PROJECT_DIR%/app/src/libs/ffmpeg/armeabi-v7a
  %PROJECT_DIR%/app/src/libs/ffmpeg/armeabi-v7a-neon
  %PROJECT_DIR%/app/src/libs/ffmpeg/x86

  It doesn’t look to me that linker misses files themselves. (I get different out put if I misplace them.)