Recherche avancée

Sur d’autres sites (8935)

• Android Ndk & FFMPEG - Not able to compile on ubuntu x86

  18 février 2015, par Palak Darji

  I am following this :
  roman10’s android ndk r9d - ffmpeg tutorial
  I am able to run build_android.sh script.. but its not creating that ‘android’ folder in my source/ffmpeg folder !!
  what should I do ? Plz help me.

  Another Doubt : The thing ‘arm’ in that .sh file is supposed to be changed according to machine env ???? If that is the case, can you guide us for x86 ???

  my build_android.sh file :

  #!/bin/bash
  
  NDK=/home/NDK/android-ndk-r9d
  
  SYSROOT=$NDK/platforms/android-19/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-arm
  
  function build_one
  
  {
  
  sudo ./configure \
  
      --target-os=linux \
  
      --prefix=$PREFIX \
  
      --enable-shared \
  
      --disable-static \
  
      --disable-doc \
  
      --disable-ffmpeg \
  
      --disable-ffplay \
  
      --disable-ffprobe \
  
      --disable-ffserver \
  
      --disable-avdevice \
  
      --disable-doc \
  
      --disable-symver \
  
      --cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
  
      --arch=arm \
  
      --enable-cross-compile \
  
      --sysroot=$SYSROOT \
  
      --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
      --extra-ldflags="$ADDI_LDFLAGS" \
  
      $ADDITIONAL_CONFIGURE_FLAG
  
  make clean
  
  make
  
  make install
  
  }
  
  CPU=i686
  
  PREFIX=$(pwd)/android/$CPU 
  
  ADDI_CFLAGS="-marm"
  
  build_one

  I am using Ndk r10, ffmpeg 2.5.4, ubuntu x86.

  Thanks for ur time.

  Palak.

• wait for node server to start up in php

  22 février 2015, par Ortix92

  I have a php script which does the following :

  1. Start peerflix (node server)
  2. Get PID
  3. FFProbe* the server (http://127.0.0.1:8888)

  All of this is done in PHP but there is a slight issue. It seems that after having received the PID, the server is not fully initialized yet, or so it seems. The problem is that FFProbe cannot probe the server. In other words, it’s not accessible at the time of probing.

  What are some possibilities to probe the server when it is actually initialized ? I don’t want to use the arbitrary sleep() method because waiting for 2 seconds on a slow vagrant machine is now the same as waiting for 2 seconds on a blazing vast server.

  FFProbe throws an exception when it can’t probe the server. Perhaps use a try-catch and return back to the try if an exception is thrown ? How would I implement that ?

  *FFProbe is a companion of FFMpeg to get the information of a video file such as duration and codec.

• Is it possible to stream netflix in either an embedded version of chromium or using ffmpeg ?

  24 février 2015, par OzBarry

  I’m looking into building an all-in-one media streaming application for my raspberry pi2, since there are currently very few options, and it’s scalable to other systems. The biggest hurdle I’ve found in requirements gathering is being able to stream netflix.

  There have been very few attempts at getting chromium to stream netflix, and even fewer on armv7h systems, so I’m trying to look at alternatives.

  My first thought is using a combination of curl and ffmpeg, and I think this would somehow work, however this doesn’t solve the issue with the DRM.

  Another option would be to stream from another computer into my application. This solves the DRM issue, but encumbers my software setup, burdens users to have at least one computer that can also stream netflix, and will suffer from lag (netflix -> computer a -> computer b). The last point can be sorted out with buffering, but that may not be ideal, since it adds stress to the raspberry pi machine.

  As a side note, I am using SDL2 for rendering, so I would be fine with a binary library that decodes the frames and audio, and sends it directly to a SDL renderer ad audio stream without allowing me to modify/copy it.

  Does anything like these options exist ? I really just want to get a legit stream from netflix if possible, while not interferring with the DRM.