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• DIY video file streaming from linux/osx to iOS devices

  27 septembre 2016, par sfactor

  This is for a hobby project. I want to learn about video streaming and also create something that’s useful for me as well.

  The project should be able to run a server on my macbook and a client on my iPad that will allow me to watch the videos I’ve got stored on my laptop without having to copy them in my iPad over my wifi.

  I know there are solutions like Plex, Air Video etc. that allow me to do it. But since my goal is to practice writing some client/server code, I want to create something myself with the basic functionality of these apps.

  I figured I’d probably need something like ffmpeg and Apple’s HTTP Live Streaming (HLS), but I don’t have a Apple developer account to be able to use it. I do have Xcode in my mac. So, some free 3rd party library for HLS or something equivalent. I also fond this tool called https://www.bento4.com.

  How would I go about getting started with such an application and what are the libraries I could use to accomplish this ?

• Error when compiling FAAC for iOS

  6 novembre 2014, par 谢小进

  I want to compile FAAC for iOS, including i386, x86_64, armv7, armv7s, arm64. I am using this shell script and when I run it, only i386 and x86_64 are built. The current code is like this :

  #!/bin/sh
  
  
  
  # OS X Mavericks, Xcode 5.1
  
  
  
  set -ex
  
  
  
  VERSION="1.28"
  
  CURRPATH=`pwd`
  
  SOURCE="faac-$VERSION"
  
  DSTDIR="libfaac"
  
  SDKVERSION="7.1"
  
  ARCHS="i386 x86_64 armv7 armv7s arm64"
  
  DEVELOPER="/Applications/Xcode.app/Contents/Developer"
  
  
  
  rm -rf $DSTDIR
  
  mkdir $DSTDIR
  
  
  
  tar jxf $SOURCE.tar.gz
  
  cd $SOURCE
  
  
  
  for ARCH in $ARCHS; do
  
      mkdir -p $CURRPATH/$DSTDIR/$ARCH
  
  
  
      if [ $ARCH == "i386" -o $ARCH == "x86_64" ]; then
  
          PLATFORM="iPhoneSimulator"
  
          if [ $ARCH = "i386" ]; then
  
              HOST="--host=i386-apple-darwin"
  
          fi
  
      else
  
          PLATFORM="iPhoneOS"
  
          HOST="--host=arm-apple-darwin"
  
      fi
  
  
  
      SDK="$DEVELOPER/Platforms/$PLATFORM.platform/Developer/SDKs/$PLATFORM$SDKVERSION.sdk"
  
      IOSMV="-miphoneos-version-min=7.0"
  
      export CC="$DEVELOPER/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang"
  
      export CFLAGS="$IOSMV -arch $ARCH"
  
      export LDFLAGS="$IOSMV -arch $ARCH -isysroot $SDK"
  
      export LIBS="-L$SDK/usr/lib"
  
      export CXXFLAGS="$IOSMV -arch $ARCH -I$SDK/usr/include"
  
  
  
      ./configure \
  
      $HOST \
  
      --prefix=$CURRPATH/$DSTDIR/$ARCH
  
  
  
      make && make install && make clean
  
  done
  
  
  
  cd ..
  
  mkdir -p $DSTDIR/lib
  
  
  
  lipo -create `find $DSTDIR -name libfdk-aac.a` -output $DSTDIR/lib/libfdk-aac.a
  
  
  
  cp -rf $DSTDIR/$ARCH/include $DSTDIR
  
  
  
  for ARCH in $ARCHS; do
  
      rm -rf $DSTDIR/$ARCH
  
  done

  Can somebody tell me why armv7, armv7s, arm64 are not built correct ? If needed, where can I change them ? Maybe it could be like -host= value. but I have used -host=armv7-apple-darwin, -host=armv7s-apple-darwin, and -host=arm64-apple-darwin, it’s not correct either.

• How can I add multiple metadata in video using ffmpeg

  17 janvier 2019, par Raghbendra Nayak

  I am using command to add metadata in a video and its working fine.

  ffmpeg -i '/var/www/html/public/uploads/wp-video/akka.mov' -metadata kKeyContentIdentifier='com.apple.quicktime.content.identifier' '/var/www/html/public/uploads/video-thumb/updated-akka.mov'

  Now I want to add more than one meta data so Just pass the multiple meta like below but its not working

  ffmpeg -i '/var/www/html/public/uploads/wp-video/akka.mov' -metadata kKeyContentIdentifier='com.apple.quicktime.content.identifier' -metadata kKeyStillImageTime = 'com.apple.quicktime.still-image-time' -metadata kKeySpaceQuickTimeMetadata = 'mdta' '/var/www/html/public/uploads/video-thumb/updated-akka.mov'

  Can anyone tell me how can I add ?