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• FFMPEG "no such file or directory" on Android

  25 mars 2013, par Feras

  I am trying to use the ffmpeg binary and call it via a native linux command in android. Most of the commands work fine but the problem is that when i need to pass an http url as an input to the -i option i get "No such file or directory" for the url. The url however is existing and running the SAME command on a mac does the job as expected.

  Here is my compile config for the ffmpeg build :

  ./configure \
  
  $DEBUG_FLAG \
  
  --arch=arm \
  
  --cpu=cortex-a8 \
  
  --target-os=linux \
  
  --enable-runtime-cpudetect \
  
  --prefix=$prefix \
  
  --enable-pic \
  
  --disable-shared \
  
  --enable-static \
  
  --cross-prefix=$NDK_TOOLCHAIN_BASE/bin/$NDK_ABI-linux-androideabi- \
  
  --sysroot="$NDK_SYSROOT" \
  
  --extra-cflags="-I../x264 -mfloat-abi=softfp -mfpu=neon" \
  
  --extra-ldflags="-L../x264" \
  
  \
  
  --enable-version3 \
  
  --enable-gpl \
  
  \
  
  --disable-doc \
  
  --enable-yasm \
  
  \
  
  --enable-decoders \
  
  --enable-nonfree \
  
  --enable-encoders \
  
  --enable-muxers \
  
  --enable-demuxers \
  
  --enable-parsers \
  
  --enable-protocols \
  
  --enable-protocol=http \
  
  --enable-filters \
  
  --enable-avresample \
  
  \
  
  --disable-indevs \
  
  --enable-indev=lavfi \
  
  \
  
  --enable-hwaccels \
  
  \
  
  --enable-ffmpeg \
  
  --enable-ffplay \
  
  --enable-libmp3lame \
  
  --enable-network \
  
  \
  
  --enable-libx264 \
  
  --enable-libfaac \
  
  --enable-zlib

  Its based off of this project : https://github.com/guardianproject/android-ffmpeg-java

  Command is something along the lines of that :

  ffmpeg -i "http://someurl" -f mp3 -ab 192000 -vn demoo.mp3

  The idea being to download the audio track from a video and encode it as mp3. I explicitly added multiple enable protocols options but nothing seems to do the job. I tried an alternative config as well, removing everything below enable-gpl just to make sure there arent any conflicts, but it fires the same error. If i give it a normal filesystem path it works fine.

  Following the comments here is the exact output of the command and the output :

  03-25 00:22:08.806: VERBOSE/FFMPEG(16491): /data/data/org.ffmpeg.android/app_bin/ffmpeg -i "http://r6---sn-gvbxgn-tt1d.c.youtube.com/videoplayback?ipbits=8&cp=U0hVSVJLV19KUUNONV9KRUFJOnQ0STMtb0JXc0py&sparams=cp%2Cid%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&id=c0045acebe0c3341&upn=IVAGxSD1hE0&source=youtube&ratebypass=yes&mv=m&key=yt1&expire=1364209857&itag=18&ms=au&ip=99.234.119.90&mt=1364185033&fexp=923418%2C901802%2C906383%2C902000%2C919512%2C913605%2C931202%2C900821%2C900823%2C931203%2C931401%2C908529%2C919373%2C930803%2C920201%2C929602%2C930101%2C930603%2C926403%2C900824%2C910223&sver=3&newshard=yes&signature=838AEB4650D8353B70DBC49341E0C40706DC6153.297639FD70A7F9710F29AE9E278A4FC4A32E0C67" -f mp3 -ab 192000 -vn /data/data/org.ffmpeg.android/files/demoooo.mp3 -loglevel debug
  
  03-25 00:22:08.956: DEBUG/ffmpeg(16491): Process exited with code:1
  
  03-25 00:22:08.966: DEBUG/ffmpeg(16491): Shell output:ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
  
  03-25 00:22:08.976: DEBUG/ffmpeg(16491): Shell output:  built on Mar 24 2013 02:24:38 with gcc 4.6 20120106 (prerelease)
  
  03-25 00:22:08.976: DEBUG/ffmpeg(16491): Shell output:  configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/Users/feribg/Dev/android-ndk-r8d/toolchains/arm-linux-androideabi-4.6/prebuilt/darwin-x86/bin/arm-linux-androideabi- --sysroot=/Users/feribg/Dev/android-ndk-r8d/platforms/android-3/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon' --extra-ldflags=-L../x264 --enable-version3 --enable-gpl
  
  03-25 00:22:08.976: DEBUG/ffmpeg(16491): Shell output:  libavutil      51. 54.100 / 51. 54.100
  
  03-25 00:22:08.976: DEBUG/ffmpeg(16491): Shell output:  libavcodec     54. 23.100 / 54. 23.100
  
  03-25 00:22:08.976: DEBUG/ffmpeg(16491): Shell output:  libavformat    54.  6.100 / 54.  6.100
  
  03-25 00:22:08.986: DEBUG/ffmpeg(16491): Shell output:  libavdevice    54.  0.100 / 54.  0.100
  
  03-25 00:22:08.996: DEBUG/ffmpeg(16491): Shell output:  libavfilter     2. 77.100 /  2. 77.100
  
  03-25 00:22:08.996: DEBUG/ffmpeg(16491): Shell output:  libswscale      2.  1.100 /  2.  1.100
  
  03-25 00:22:08.996: DEBUG/ffmpeg(16491): Shell output:  libswresample   0. 15.100 /  0. 15.100
  
  03-25 00:22:08.996: DEBUG/ffmpeg(16491): Shell output:  libpostproc    52.  0.100 / 52.  0.100
  
  03-25 00:22:08.996: DEBUG/ffmpeg(16491): Shell output:"http://r6---sn-gvbxgn-tt1d.c.youtube.com/videoplayback?ipbits=8&cp=U0hVSVJLV19KUUNONV9KRUFJOnQ0STMtb0JXc0py&sparams=cp%2Cid%2Cip%2Cipbits%2Citag%2Cratebypass%2Csource%2Cupn%2Cexpire&id=c0045acebe0c3341&upn=IVAGxSD1hE0&source=youtube&ratebypass=yes&mv=m&key=yt1&expire=1364209857&itag=18&ms=au&ip=99.234.119.90&mt=1364185033&fexp=923418%2C901802%2C906383%2C902000%2C919512%2C913605%2C931202%2C900821%2C900823%2C931203%2C931401%2C908529%2C919373%2C930803%2C920201%2C929602%2C930101%2C930603%2C926403%2C900824%2C910223&sver=3&newshard=yes&signature=838AEB4650D8353B70DBC49341E0C40706DC6153.297639FD70A7F9710F29AE9E278A4FC4A32E0C67": No such file or directory

• Opencv ffmpeg : Video capture ("Filename.avi") crashes on a non development machine - MAC 10.8.2

  8 mars 2013, par Jerry

  I was trying to deploy a simple Qt Opencv Application, the following is the code :

  Qt : .pro file :

  QT       += core gui
  
  greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
  
  TARGET = opencvVideoTest
  
  TEMPLATE = app
  
  
  
  SOURCES += main.cpp\
  
      mainwindow.cpp
  
  
  
  HEADERS  += mainwindow.h
  
  
  
  FORMS    += mainwindow.ui
  
  
  
  INCLUDEPATH = -I/usr/local/include
  
  
  
  LIBS += -lm -lopencv_core -lopencv_highgui -lopencv_imgproc

  Mainwindow.cpp :

  #include "mainwindow.h"
  
  #include "ui_mainwindow.h"
  
  #include <opencv2></opencv2>core/core.hpp>
  
  #include <opencv></opencv>cv.h>
  
  #include <opencv2></opencv2>highgui/highgui.hpp>
  
  #include <opencv2></opencv2>imgproc/imgproc.hpp>
  
  
  
  
  
  MainWindow::MainWindow(QWidget *parent) :
  
      QMainWindow(parent),
  
      ui(new Ui::MainWindow)
  
  {
  
      ui->setupUi(this);
  
  
  
      cv::Mat img;
  
  
  
     cv::VideoCapture cap("BMWM5.avi");
  
  
  
     if(cap.isOpened()){
  
  
  
     for(;;){
  
         cap.read(img);
  
         cv::resize(img,img,cv::Size(604,480));
  
         cv::imshow("Opencv", img);
  
         cv::waitKey(33);
  
     }
  
     }
  
     else{
  
  
  
     }
  
  
  
  
  
  }
  
  
  
  MainWindow::~MainWindow()
  
  {
  
      delete ui;
  
  }

  The above snippet works fine on the development machine, which by the has Opencv 2.4.3, ffmpeg 1.1.2 & Qt 5.0.1. This what happens when I try to deploy, running the otool before using macdeployqt and the output :

  >   /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
  
   version 169.3.0)   /usr/local/opt/opencv/lib/libopencv_core.2.4.3.dylib
  
   (compatibility version 2.4.0, current version 2.4.3)
  
   >  /usr/local/opt/opencv/lib/libopencv_highgui.2.4.3.dylib
  
   (compatibility version 2.4.0, current version 2.4.3)
  
  >   /usr/local/opt/opencv/lib/libopencv_imgproc.2.4.3.dylib
  
     (compatibility version 2.4.0, current version 2.4.3)
  
  >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtWidgets.framework/Versions/5/QtWidgets
  
    (compatibility version 5.0.0, current version 5.0.1)
  
  >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtGui.framework/Versions/5/QtGui
  
    (compatibility version 5.0.0, current version 5.0.1)
  
  >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtCore.framework/Versions/5/QtCore
  
    (compatibility version 5.0.0, current version 5.0.1)
  
  >   /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
  
    (compatibility version 1.0.0, current version 1.0.0)
  
  >   /System/Library/Frameworks/AGL.framework/Versions/A/AGL
  
    (compatibility version 1.0.0, current version 1.0.0)
  
  >   /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current
  
    version 56.0.0)

  otool after macdeployqt output :

  /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)
  
      @executable_path/../Frameworks/libopencv_core.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
  
    @executable_path/../Frameworks/libopencv_highgui.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
  
    @executable_path/../Frameworks/libopencv_imgproc.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
  
    @executable_path/../Frameworks/QtWidgets.framework/Versions/5/QtWidgets

  (compatibility version 5.0.0, current version 5.0.1)
  @executable_path/../Frameworks/QtGui.framework/Versions/5/QtGui (compatibility version 5.0.0, current version 5.0.1)
  @executable_path/../Frameworks/QtCore.framework/Versions/5/QtCore (compatibility version 5.0.0, current version 5.0.1)
  /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
  /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
  /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 56.0.0)

  But after deploying it, when I try and run the app on the user's machine it crashes, no error reported either, the exact samething used to happen in Windows but when I copied the opencv_ffmpeg.dll into the exe folder it worked fine. I tried to use the same logic here and failed, then I manually addded each lib files of all the ffmpeg and its dependency into the project folder and still failed. Any other solution, please help ? I'm a newbie to mac dpeloyment. Am i missing or overlooked something ?

• Warning "i686-mingw32-pkg-config not found, library detection may fail" while cross compiling ffmpeg

  12 octobre 2015, par S B

  I get the following warning while trying to cross compile ffmpeg as below

  $ ./configure --enable-gpl --enable-version3 --enable-libgsm --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libopencore_amrwb --enable-libopencore_amrnb --arch=x86 --enable-runtime-cpudetect --enable-static --disable-shared --enable-libxvid --enable-libx264 --target-os=mingw32 --enable-avisynth --enable-w32threads --cross-prefix=i686-mingw32- --cc='i686-mingw32-gcc' --enable-memalign-hack --disable-doc --enable-avfilter --disable-ffplay --disable-ffserver --disable-ffprobe

  Configure ran fine but with the following warning

  License: GPL version 3 or later
  
  Creating config.mak and config.h...
  
  libavutil/avconfig.h is unchanged
  
  
  
  WARNING: i686-mingw32-pkg-config not found, library detection may fail.

  How do I provide i686-mingw32-pkg-config to configure ?