Recherche avancée

Sur d’autres sites (6556)

• How to stream all videos in a folder ?

  30 mai 2015, par Krishnendu

  Hi i want to stream videos over web using ffserver. i got this link as reference.

  Now what i am not able to figure out is how to pass a folder(which content all videos i want to stream) as input to stream all videos. I also want add more videos dynamically to this folder in time to time and streaming should happen(like how it works in Darwin). now i can’t use Darwin because it doesn’t support for iOS.

  please give me a suggestion.

  is there any other open source tool by which i can do this ?

• Mixing video streams with a fade transition effect myself

  28 mai 2013, par AsTeR

  I would like to make a a software setup that would let the user switch between two webcam feeds (or more but let's consider two). I would like a fade in/out effect while switching. My main problem is that I don't know how to start.

  There seems to be some ffmpeg tool that could do the job (like libavfilter) but I don't get how I could setup it.

  What should I consider to use if I want to access frame image to make the transition myself ? Is there some simpler way ?

  I know that this question looks really poorly written, but I'm as lost as I look.

• Error while compile ffmpeg on cygwin for android [closed]

  7 novembre 2011, par Satheesh

  Possible Duplicate :
  Error when run the command ./build.sh in FFmpeg decoder in Android

  I have try to implement the ffmpeg decoding library in my android project.Dowload FFmpeg.I got the ffmpeg library from the bambuser client version and unpack that into the project jni folder.Then i run the extract command(./extract.sh) in cygwin compiler tool(its becoz am using windows os) after that am trying to build ffmpeg library using the command ./build.sh

  I have googled a lot but i cant make it work. Please help me out from this.

  NDK version : NDKr5b Cygwin tool version : 1.7

  My build.sh file is

  /************Command starts here******************/
  
  
  
   #!/bin/bash
  
  
  
  if [ "$NDK" = "" ]; then
  
      echo NDK variable not set, assuming ${HOME}/android-ndk
  
      export NDK=${HOME}/android-ndk
  
  fi
  
  
  
  SYSROOT=$NDK/platforms/android-8/arch-arm
  
   # Expand the prebuilt/* path into the correct one
  
  TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows`
  
  export PATH=$TOOLCHAIN/bin:$PATH
  
  
  
  rm -rf build/ffmpeg
  
  mkdir -p build/ffmpeg
  
  cd ffmpeg
  
  
  
   # Don't build any neon version for now
  
  for version in armv5te armv7a
  
  do
  
  
  
      DEST=../build/ffmpeg
  
      FLAGS="--target-os=linux --arch=arm"
  
      FLAGS="$FLAGS --cross-prefix=arm-linux-androideabi- --arch=arm"
  
      FLAGS="$FLAGS --sysroot=$SYSROOT"
  
      FLAGS="$FLAGS --soname-prefix=/data/data/org.rifluxyss.androiddev.livewallpapaerffmpeg/lib/"
  
      FLAGS="$FLAGS --enable-cross-compile --cc=$TOOLCHAIN/bin/arm-linux-androideabi-gcc"
  
      FLAGS="$FLAGS --enable-shared --disable-symver"
  
      FLAGS="$FLAGS --nm=$TOOLCHAIN/bin/arm-linux-androideabi-nm"
  
      FLAGS="$FLAGS --ar=$TOOLCHAIN/bin/arm-linux-androideabi-ar"
  
      FLAGS="$FLAGS --ranlib=$TOOLCHAIN/bin/arm-linux-androideabi-ranlib"
  
      FLAGS="$FLAGS --enable-small --optimization-flags=-O2"
  
      FLAGS="$FLAGS --enable-encoder=mpeg2video --enable-encoder=nellymoser --enable-memalign-hack "
  
      FLAGS="$FLAGS --disable-ffmpeg --disable-ffplay"
  
      FLAGS="$FLAGS --disable-ffserver --disable-ffprobe --disable-encoders"
  
      FLAGS="$FLAGS --disable-muxers --disable-devices --disable-protocols"
  
      FLAGS="$FLAGS --enable-protocol=file --enable-avfilter"
  
      FLAGS="$FLAGS --disable-network --enable-pthreads --enable-avutil"
  
      FLAGS="$FLAGS --disable-avdevice --disable-asm --extra-libs=-lgcc"
  
  
  
      case "$version" in
  
          neon)
  
              EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=neon"
  
              EXTRA_LDFLAGS="-Wl,--fix-cortex-a8"
  
              # Runtime choosing neon vs non-neon requires
  
              # renamed files
  
              ABI="armeabi-v7a"
  
              ;;
  
          armv7a)
  
              EXTRA_CFLAGS="-march=armv7-a -mfloat-abi=softfp"
  
              EXTRA_LDFLAGS=""
  
              ABI="armeabi-v7a"
  
              ;;
  
          *)
  
              EXTRA_CFLAGS=""
  
              EXTRA_LDFLAGS=""
  
              ABI="armeabi"
  
              ;;
  
      esac
  
      DEST="$DEST/$ABI"
  
      FLAGS="$FLAGS --prefix=$DEST"
  
  
  
      mkdir -p $DEST
  
      echo $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" > $DEST/info.txt
  
      ./configure $FLAGS --extra-cflags="$EXTRA_CFLAGS" --extra-ldflags="$EXTRA_LDFLAGS" | tee $DEST/configuration.txt
  
      [ $PIPESTATUS == 0 ] || exit 1
  
      make clean
  
      make -j4 || exit 1
  
      make install || exit 1
  
  
  
  done
  
  
  
  /****************Command ends here************************/

  While compiling this am getting error when linking the archive files into .so files.

  The error is look like
  "arm-linux-androideabi/bin/ld.exe : cannot find -lavutil
  Collect2:ld returned 1 exit status
  make :[libaswscale/libswscale.so] Error 1
  make : waititng for unfinished jobs...."

  Please anyone help me to out from this.