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• Why cant I feed FFServer(Linux) from FFMpeg (Windows) ?

  14 mars 2018, par Milen

  What I want to do is to stream a (only)video file from Windows 10 using RTSP. First, I tried to use webm HTTP instead. I found that ffserver is not avaiable for Windows, so I configured and run ffserver on a Linux machine (Ubuntu 16.04). Then, I downloaded pre-built ffmpeg for Windows x64 and run a ffmpeg command to feed my rtsp server. The fact is that the command didnt work on my Windows machine

  The same ffmpeg command works well if I run it in my Linux machine.

  The details are descripted below :

  ffserver.conf file :

  HTTPPort 8090                     
  
  HTTPBindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 10000             
  
  
  
  CustomLog -
  
  NoDaemon                      
  
  
  
  <feed>               
  
     File ./feed1.ffm        
  
     FileMaxSize 1G           
  
     ACL allow 127.0.0.1 192.168.0.131 #Windows machine IP address
  
  </feed>
  
  
  
  <stream>        
  
     Feed feed1.ffm  
  
     Format webm
  
  
  
     # Video settings
  
     VideoCodec libvpx
  
     VideoSize 720x576    
  
     VideoFrameRate 25  
  
     AVOptionVideo flags +global_header 
  
  
  
     AVOptionVideo cpu-used 0
  
     AVOptionVideo qmin 10
  
     AVOptionVideo qmax 42
  
     AVOptionVideo quality good
  
     NoAudio
  
  
  
     PreRoll 15
  
     StartSendOnKey
  
     VideoBitRate 400         
  
  </stream>
  
  
  
  <stream> 
  
     Format status
  
  
  
     ACL allow localhost
  
     ACL allow 192.168.0.0 192.168.255.255
  
     ACL allow 192.168.0.131 # my windows machine ip
  
  </stream>
  
  
  
  <redirect> 
  
     URL http://www.ffmpeg.org/
  
  </redirect>

  ffmpeg command to feed server :

  ffmpeg -i video.avi http://192.168.0.119:8090/feed1.ffm

  Error thrown by Windows command line :

   Unable to find a suitable output format for 'http://192.168.0.119:8090/feed1.ffm' .
  
   http://192.168.0.119:8090/feed1.ffm : Invalid argument.

  Someone told me that Windows newest version of FFMpeg doesnt support ffm, Is that true ? I couldnt find a different format example.

• How to compile ffmpeg on Windows 10 ?

  13 février 2018, par Mr.Han

  My development environment is Windows 10 - 64bit. It is set to Android development environment. I am trying to compile ffmpeg.

  I installed cygwin and installed cygwin. gcc related all, dos2unix, make, automake. ffmpeg version is 3-2.10.

  Configure file

  Before

  SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
  
  LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
  
  SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
  
  SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'

  After

  SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
  
  LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
  
  SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
  
  SLIB_INSTALL_LINKS='$(SLIBNAME)'

  build_android.sh

  #!/bin/bash
  
  NDK=c:/Users/storm/AppData/Local/Android/Sdk/ndk-bundle
  
  SYSROOT=$NDK/platforms/android-16/arch-arm/
  
  TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64
  
  CUR=`cygpath -m $(pwd)`
  
  TEMPDIR=`cygpath -m /tmp`
  
  TMP=`cygpath -m /tmp`
  
  function build_one
  
  {
  
  sed -i 's/ln_s="ln -s -f"/ln_s="cp -f"/g' ./configure
  
  ./configure \
  
  --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- \
  
  --target-os=linux \
  
  --arch=arm \
  
  --enable-cross-compile \
  
  --sysroot=$SYSROOT \
  
  --extra-cflags="-Os -fpic $ADDI_CFLAGS" \
  
  --extra-ldflags="$ADDI_LDFLAGS"\
  
  $ADDITIONAL_CONFIGURE_FLAG
  
  sed -i':a;N;$!ba;s/gcc 4.9\r/gcc 4.9/g' ./config.h
  
  sed -i':a;N;$!ba;s/gcc 4.9\r/gcc 4.9/g' ./config.mak
  
  #make clean
  
  #make
  
  #make install
  
  }
  
  CPU=arm
  
  PREFIX=$CUR/android/$CPU
  
  ADDI_CFLAGS="-marm"
  
  build_one

  Where is the problem ?

• How to update/remove ffmpeg on Windows 10

  9 janvier 2018, par C. Wagner

  I found a python script that had to use ffmpeg via cmd.exe thus I "installed" ffmpeg following these instructions. I downloaded the latest version ffmpeg 3.4.1 but would like to replace it with ver 2.4.x. (I think syntax from the .py file is for ver 2.4.x). I replaced the entire folder with files from the older version zip but when I input ffmpeg -version it still shows version 3.4.

  I also tried removing path from environment variables,rebooting, and deleting entire ffmpeg folder to no avail. CMD.exe still displays ffmpeg as version 3.4 even when the entire folder is deleted. I was not able to find anything on ffmepg documentation or on google. I know its not exactly programming related but I thought I would get an answer here rather than in video production.

  Snippet of the code

  system("./ffmpeg -i xxx.ts -c copy -bsf:a aac_adtstoasc xxx.mp4")