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• ffmpeg based JAVE video conversion taking a long time

  18 novembre 2015, par Deepak

  I am using ffmpeg to convert videos to mp4 format in my application I have used JAVE and Xuggler for the same. My issue is that, video conversions are taking way too much of time. For example, a 50MB video takes almost 2 hrs to complete the video conversion and upload the same. Also, when i play a video, it takes a longer time to play on safari on mac OS than chrome/firefox.

  What are the possible solutions for this ?
  How to optimize the conversion time/video buffering for playing the video faster

• Can't build ffmpeg

  7 avril 2016, par Dev_Vlad

  I have some problems with building ffmpeg for servestream radio.

  Here’s the log :

  build-ffmpeg:
  
   [exec] arm-linux-androideabi-gcc is unable to create an executable file.
  
   [exec] C compiler test failed.
  
   [exec] 
  
   [exec] If you think configure made a mistake, make sure you are using the latest
  
   [exec] version from Git.  If the latest version fails, report the problem to the
  
   [exec] ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  
   [exec] Include the log file "config.log" produced by configure as this will help
  
   [exec] solving the problem.
  
   [exec] Copying FFmpeg .so files from /home/vlad/WORK/Ubuntu/OnlineRadioSamples/servestream-master-minstrely/submodules/ffmpeg-0.11.1-android-2012-09-18/build/ffmpeg to /home/vlad/WORK/Ubuntu/OnlineRadioSamples/servestream-master-minstrely/jni/ffmpeg/ffmpeg/armeabi
  
   [exec] Copying FFmpeg .so files from /home/vlad/WORK/Ubuntu/OnlineRadioSamples/servestream-master-minstrely/submodules/ffmpeg-0.11.1-android-2012-09-18/build/ffmpeg to /home/vlad/WORK/Ubuntu/OnlineRadioSamples/servestream-master-minstrely/jni/ffmpeg/ffmpeg/armeabi-v7a
  
   [exec] Native build complete, exiting...
  
   [exec] cp: не could not execute stat for «/home/vlad/WORK/Ubuntu/OnlineRadioSamples/servestream-master-minstrely/submodules/ffmpeg-0.11.1-android-2012-09-18/build/ffmpeg/armeabi-v7a»: No such file or catalog
  
  
  
  native-clean:
  
   [exec] Android NDK: WARNING: APP_PLATFORM android-17 is larger than android:minSdkVersion 8 in ./AndroidManifest.xml    
  
   [exec] Android NDK: ERROR:jni/ffmpeg/Android.mk:avcodec: LOCAL_SRC_FILES points to a missing file    
  
   [exec] Android NDK: Check that jni/ffmpeg/ffmpeg/armeabi/lib/libavcodec.so exists  or that its path is correct   
  
   [exec] /home/vlad/android/ndk/build/core/prebuilt-library.mk:45: *** Android NDK: Aborting    .  Stop.

  In arm-build.sh file I edited some lines :

  export NDK=${HOME}/android-ndk

  to

  export NDK=/home/vlad/android/ndk

  next :

  TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86*`

  to

  TOOLCHAIN=`echo $NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86*`

  What’s wrong ?

• FFMPEG command faild

  11 octobre 2015, par Asad kamran

  I am experimenting FFMPEG command to convert any video format to mp4.

  Server admin execute the below command created by me and show me the errors :

  ffmpeg -ss 00:03:00  -i  /home/bbma7roo/public_html/site_data/video/1444107854.mov -c:v libx264 /home/bbma7roo/public_html/site_data/video/player/1444107854.mp4  -vframes 1 /home/bbma7roo/public_html/site_data/video/thumb/1444107854.jpg

  This is error :

  [aac @ 0x2b845a0] The encoder ’aac’ is experimental but experimental
  codecs are not enabled, add ’-strict -2’ if you want to use it.

  how can i avoid this error and also experimental codec, so can any one let me know what can be best codec if i explicitly specify it.

  my ffmpeg and server are as follow :

  ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
  developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)