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• Change youtube-dl download output (Windows)

  13 avril 2016, par Inforcer25

  I hope you can help me.

  I am using youtube-dl on windows (youtube-dl.exe)
  Downloading the video works great and also just the audio. But what i want is for it to save the audio file in a different place eg. C :\Users*******\Desktop

  I made a batch file with this code :

  :audio
  
  cls
  
  echo.
  
  echo.
  
  echo Your audio vill be downloaded and saved as a .mp3 format
  
  echo.
  
  echo.
  
  set /p audio=Enter Video URL here:
  
  cls
  
  youtube-dl.exe --extract-audio --audio-format mp3 --output C:\Users\*******\Desktop\(ext)s.%(ext)s %audio%
  
  pause
  
  cls
  
  echo.
  
  echo.
  
  echo.
  
  echo.
  
  echo Your audio has now been downloaded.
  
  ping localhost -n 3 >nul
  
  exit

  and then it gives me this

  Usage: youtube-dl.exe [OPTIONS] URL [URL...]
  
  
  
  youtube-dl.exe: error: You must provide at least one URL.
  
  Type youtube-dl --help to see a list of all options.
  
  Press any key to continue . . .

  It works fine if i use this but it saves it in the same folder.

  :audio
  
  cls
  
  echo.
  
  echo.
  
  echo Your audio vill be downloaded and saved as a .mp3 format
  
  echo.
  
  echo.
  
  set /p audio=Enter Video URL here:
  
  cls
  
  youtube-dl.exe --extract-audio --audio-format mp3 %audio%
  
  pause
  
  cls
  
  echo.
  
  echo.
  
  echo.
  
  echo.
  
  echo Your audio has now been downloaded.
  
  ping localhost -n 3 >nul
  
  exit

  Also please keep in mind that it also uses ffprobe.exe and ffmpeg.exe (They are both in the same folder as youtube-dl.exe

• Compiling FFmpeg : libx264 not found

  17 mars 2016, par SaidTagnit

  I hope some one helps me the solve this problems. I was trying to compile FFmpeg 2.2.3 library under ubuntu 12.04LTS for android using android ndk r10e by following this tutorials :

  Tutorial1

  Tutorial2

  here is my build_android.sh file :

  #!/bin/bash
  
  NDK=/home/rango/Desktop/android-ndk-r10e
  
  SYSROOT=$NDK/platforms/android-19/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
  
  
  
  #ADDI_LDFLAGS="-L /usr/local/lib"
  
  #ADDI_CFLAGS="-I /usr/include"
  
  
  
  function build_one
  
  {
  
  ./configure \
  
  --prefix=$PREFIX \
  
  --enable-shared \
  
  --enable-static \
  
  --disable-doc \
  
  --disable-ffmpeg \
  
  --disable-ffplay \
  
  --disable-ffprobe \
  
  --disable-ffserver \
  
  --disable-doc \
  
  --disable-symver \
  
  --enable-protocol=concat \
  
  --enable-protocol=file \
  
  --enable-muxer=mp4 \
  
  --enable-demuxer=mpegts \
  
  --enable-memalign-hack \
  
  --enable-gpl \
  
  --enable-libx264 \
  
  --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
  --target-os=linux \
  
  --arch=arm \
  
  --enable-cross-compile \
  
  --sysroot=$SYSROOT \
  
  --extra-cflags="-Os -fpic -marm $ADDI_CFLAGS" \
  
  --extra-ldflags="$ADDI_LDFLAGS" \
  
  
  
  make clean
  
  make -j4
  
  make install
  
  }
  
  
  
  CPU=arm
  
  PREFIX=$(pwd)/android/$CPU
  
  
  
  build_one

  when i execute buid_android.sh script without —enable-libx264 \ line everything is going well and i can get .a files on android/arm/ folder. but with this line it fails and show the following error in the console :

  ERROR : libx264 not found

  If you think configure made a mistake, make sure you are using the
  latest version from Git. If the latest version fails, report the
  problem to the ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on
  irc.freenode.net. Include the log file "config.log" produced by
  configure as this will help

  it seems like it can’t find where the libraries are, as i get a lot of the following errors in config.log file :

  "LIBNAME".h : No such file or directory
  newlib.h : No such file or
  directory mingw.h : No such file or directory
  x264.h : No such file or
  directory

  Here is the tail of config.log file :

  check_mathfunc truncf 1
  
  check_ld cc
  
  check_cc
  
  BEGIN /tmp/ffconf.zGKqGin6.c
  
      1   #include 
  
      2   float foo(float f, float g) { return truncf(f); }
  
      3   int main(void){ return (int) foo; }
  
  END /tmp/ffconf.zGKqGin6.c
  
  /home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -Os -fpic -marm -march=armv5te -std=c99 -fomit-frame-pointer -fPIC -marm -pthread -c -o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
  
  /home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -Wl,--as-needed -o /tmp/ffconf.3sjTkc5z /tmp/ffconf.8Q9ke3aO.o -lm -lz -pthread
  
  check_lib x264.h x264_encoder_encode -lx264
  
  check_header x264.h
  
  check_cpp
  
  BEGIN /tmp/ffconf.zGKqGin6.c
  
      1   #include 
  
      2   int x;
  
  END /tmp/ffconf.zGKqGin6.c
  
  /home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -Os -fpic -marm -march=armv5te -std=c99 -fomit-frame-pointer -fPIC -marm -pthread -E -o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
  
  /tmp/ffconf.zGKqGin6.c:1:18: fatal error: x264.h: No such file or directory
  
   #include 
  
                    ^
  
  compilation terminated.
  
  ERROR: libx264 not found

• java bufferedimage array data immediately changes

  26 mars 2016, par ken

      import javax.imageio.ImageIO;
  
  
  
      import org.bytedeco.javacv.FFmpegFrameGrabber;
  
  
  
      public class FrameData 
  
      {   
  
  int count = 0;
  
  int picWidth;
  
  int picHeight;
  
  
  
  BufferedImage img = null;
  
  
  
  //GET FRAME COUNT
  
  public int gf_count(int numofFrames, BufferedImage[] frameArray, String fileLocationsent, String videoNamesent) throws IOException
  
  {        
  
      String fileLocation = fileLocationsent;
  
      String videoName = videoNamesent;
  
  
  
      int frameNums = numofFrames;
  
      int totFrames = 0;
  
  
  
              FFmpegFrameGrabber grab = new FFmpegFrameGrabber(fileLocation + videoName);
  
  
  
          try {   grab.start(); } 
  
          catch (Exception e) {   System.out.println("Unable to grab frames");  }
  
  
  
                      for(int i = 0 ; i < frameNums  ; i++) 
  
          {
  
              try 
  
              {                   
  
                  frameArray[i]= grab.grab().getBufferedImage();
  
                  totFrames = i;  
  
                  File outputfile = new File(fileLocation + "GrayScaledImage" + i + ".jpg");
  
                  ImageIO.write(frameArray[i], "jpg", outputfile);
  
              } 
  
              catch (Exception e) {   /*e.printStackTrace();*/    }
  
          }//END for
  
  
  
                  return totFrames;
  
  
  
      }//END METHOD long getFrameCount()

  Hope someone can explain this to me...
  I am just learning java so here goes...
  I wrote this code to count the number of frames in a .mov file and to test my buffered image array I generated files of the images. As the code is, it works as planned... The problem is immediately after the capturing, if I send the bufferedimages out as files, they all seem to be just the first image. see example below...

      for(int i = 0 ; i < frameNums  ; i++) 
  
          {
  
              try 
  
              {                   
  
                  frameArray[i]= grab.grab().getBufferedImage();
  
                  totFrames = i;  
  
                  File outputfile = new File(fileLocation + "GrayScaledImage" + i + ".jpg");
  
                  ImageIO.write(frameArray[i], "jpg", outputfile);
  
              } 
  
              catch (Exception e) {   /*e.printStackTrace();*/    }
  
          }//END for

  And now if I change that to...

      for(int i = 0 ; i < frameNums  ; i++) 
  
          {
  
              try 
  
              {                   
  
                  frameArray[i]= grab.grab().getBufferedImage();
  
                  totFrames = i;  catch (Exception e) {   /*e.printStackTrace();*/    }}
  
      for(int j = 0; j < frameNums; j++)
  
      {
  
      File outputfile = new File(fileLocation + "GrayScaledImage" + j + ".jpg");
  
                  ImageIO.write(frameArray[j], "jpg", outputfile);
  
      }

  I don’t understand why I am getting the same image repeatedly.
  If further information Is required, just lemme know, this is my first programming question online... Usually find what I am looking for that others have asked. Couldn’t find this one.
  Thanks for your time
  Ken