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• Xuggle build failed on ubuntu x64 ?

  3 avril 2012, par beginner

  After downloading the source code from GIT hub I setup the enviroment variables
  as Xuggle YouTube Video said so

     export XUGGLE_HOME=/usr/local
  
     export PATH=$XUGGLE_HOME/bin:$PATH
  
     export LD_LIBRARY_PATH=$XUGGLE_HOME

  Then I simply started the ant test by command

  ant run-tests

  Which gave me following output with error in the end ..

  compile-native-do:
  
       [exec] Making all in captive
  
       [exec] make[1]: Entering directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive'
  
       [exec] Making all in libvo-aacenc
  
       [exec] make[2]: Entering directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc'
  
       [exec] Incarcerated package configured: ../../../../../captive/libvo-aacenc
  
       [exec] Incarcerating package ../../../../../captive/libvo-aacenc to fake DESTDIR=/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive
  
       [exec] make[3]: Entering directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc/csrc'
  
       [exec] make  all-am
  
       [exec] make[4]: Entering directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc/csrc'
  
       [exec] make[4]: Leaving directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc/csrc'
  
       [exec] make[3]: Leaving directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc/csrc'
  
       [exec] Incarceration complete: ../../../../../captive/libvo-aacenc
  
       [exec] make[2]: Leaving directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libvo-aacenc'
  
       [exec] Making all in libopencore-amr
  
       [exec] make[2]: Entering directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libopencore-amr'
  
       [exec] Incarcerated package must be reconfigured; regenerating out of date captive Makefile from: ../../../../../captive/libopencore-amr/csrc/configure
  
       [exec] /bin/mkdir -p csrc
  
       [exec] cd csrc && sh ../incarcerate
  
       [exec] Creating release version of libopencore-amr: 
  
       [exec] Copying /home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/../../../../captive/libopencore-amr/csrc to /home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libopencore-amr/csrc
  
       [exec] Configuring libopencore-amr with these options:  --enable-shared
  
       [exec] checking for a BSD-compatible install... /usr/bin/install -c
  
       [exec] checking whether build environment is sane... yes
  
       [exec] checking for a thread-safe mkdir -p... /bin/mkdir -p
  
       [exec] checking for gawk... no
  
       [exec] checking for mawk... mawk
  
       [exec] checking whether make sets $(MAKE)... yes
  
       [exec] checking how to create a ustar tar archive... gnutar
  
       [exec] checking whether to enable maintainer-specific portions of Makefiles... no
  
       [exec] checking build system type... x86_64-unknown-linux-gnu
  
       [exec] checking host system type... x86_64-unknown-linux-gnu
  
       [exec] checking for g++... no
  
       [exec] checking for c++... no
  
       [exec] checking for gpp... no
  
       [exec] checking for aCC... no
  
       [exec] checking for CC... no
  
       [exec] checking for cxx... no
  
       [exec] checking for cc++... no
  
       [exec] checking for cl.exe... no
  
       [exec] checking for FCC... no
  
       [exec] checking for KCC... no
  
       [exec] checking for RCC... no
  
       [exec] checking for xlC_r... no
  
       [exec] checking for xlC... no
  
       [exec] configure: error: in `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libopencore-amr/csrc':
  
       [exec] configure: error: C++ compiler cannot create executables
  
       [exec] See `config.log' for more details.
  
       [exec] make[2]: *** [/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libopencore-amr/csrc/Makefile] Error 1
  
       [exec] make[1]: *** [all-recursive] Error 1
  
       [exec] make: *** [all-recursive] Error 1
  
       [exec] checking for C++ compiler default output file name... 
  
       [exec] Could not configure library: "/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/../../../../captive/libopencore-amr"; you may want to try disabling it or installing your own version
  
       [exec] make[2]: Leaving directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive/libopencore-amr'
  
       [exec] make[1]: Leaving directory `/home/uroot/xuggle/build/native/x86_64-unknown-linux-gnu/captive'
  
  
  
  BUILD FAILED
  
  /home/uroot/xuggle/mk/buildtools/buildhelper.xml:1149: exec returned: 2

• Best Web Video Encoding Practices for IOS (FFMpeg)

  21 juin 2012, par MagicMushroom

  I am working on an online video repository system for a client, written mostly in PHP. At the moment I am building a mobile version of our desktop website. Our desktop site allows users to watch videos in the browser, much like YouTube.

  My client uploads videos through the manager interface I have created, and my application uses FFmpeg on the server to transcode his videos into several resolutions and bitrates. I am no expert on FFmpeg, and while I do not know the ins and outs of each individual setting, I do understand how it works as a whole. Right now, we are using the mp4 container format with the h.264 codec to encode our videos. Our command looks like :

  ffmpeg -y -i "INPUT FILE.mov" -f mp4 -s 640x480 -vcodec libx264 -preset fast -maxrate 1500 -bitrate 1000 -bufsize 4096 -acodec libfaac -ab 192 -ac 2 "OUTPUT_FILE.mp4" >> "FILE.log" 2>&1 &

  I'm hoping to gain information about best practices with encoding video for web streaming on IOS and other mobile devices using FFmpeg. What resolutions and settings make for good mobile streaming video ? How can I ensure maximum compatibility across the sea of Android devices ?

• What's the best way to clip a live HLS feed at a certain date/time ?

  23 mai 2016, par Ryan Detzel

  I can record the whole stream using ffmpeg but I only want to record a certain part, say starting at 10:00:30-04:00 and recording for 30 seconds. I can’t find a way to do this with ffmpeg directly so I’m thinking of using a script to watch the HLS feed and when that time comes (via EXT-X-PROGRAM-DATE-TIME) trigger ffpmeg to start recording for 30 seconds. Is there a better way to do this ?