Recherche avancée

Sur d’autres sites (8033)

• filesize is not growing as expected

  29 juillet 2019, par Oracy Martos

  I am trying to record a stream here on my machine to study ffmpeg library,
  but with(out) success.

  I have a file watcher to clean up bugged streams, that cleanup each 3 minutes files that have been not changed less then 3 minutes.

  The real problem is, if I use the command below :

  /usr/bin/ffmpeg -i http://sysrad.net:10090/ -y test.mp3

  this command doesn’t have any kind of codec or audio transformation, so my target file (test.mp3) become 256k quickly, but, if I use this command below :

  /usr/bin/ffmpeg -i http://sysrad.net:10090/ -y -b:a 8k -ac 1 -ar 11025 test.mp3

  My target file (test.mp3) keep 0k until the record has 256k, I am not sure if this is an Unix problem or ffmpeg problem.

  Other information, if I run in loop :

  while true; do wc -l teste.mp3; sleep 0.5; done;

  test.mp3 file keeps 0 rows, until has 256k size...

  I have no idea how to workaround that, to get the real time file size for each 1k that ffmpeg get from stream with those codecs, does you guys have any idea how can I handle that ?

  Thanks !!!!

• RTSP streaming on Android client using FFMpeg

  7 février 2021, par rurtle

  I am working on a hobby project the goal for which is to develop an Android application capable of streaming live feeds captured through web cams in a LAN setting using FFMpeg as the underlying engine. So far, I did the following -

  



  A. Compiling and generating FFMpeg related libraries for the following releases -

  



  FFMpeg version : 2.0
  
NDK version : r8e & r9
  
Android Platform version : android-16 & android-18thisthisthisthis
  
Toolchain version : 4.6 & 4.8
  
Platform built on : Fedora 18 (x86_64)
  

  



  B. Creating the files Android.mk & Application.mk in appropriate path.

  



  However, when it came to writing the native code for accessing appropriate functionality of FFMpeg from the application layer using Java, I'm stuck with following questions -

  



  a) Which all of FFMpeg's features I need to make available from native to app layer for streaming real-time feeds ?
  
b) In order to compile FFMpeg for Android, I followed this link. Whether the compilation options are sufficient for handling *.sdp streams or do I need to modify it ?
  
c) Do I need to make use of live555 ?
  

  



  I am totally new to FFMpeg and Android application development and this is going to be my first serious project for Android platform. I have been searching for relevant tutorials dealing with RTSP streaming using FFMpeg for a while now without much success. Moreover, I tried the latest development build of VLC player and found it to be great for streaming real-time feeds. However, it's a complex beast and the goal for my project is of quite limited nature, mostly learning - in a short time span.

  



  Could you suggest some pointers (e.g. links, documents or sample code) on how can I write the native code for utilizing FFMpeg library and subsequently use those functionality from the app layer for streaming real-time feeds ? Moreover, will really appreciate if you could let me know the kind of background knowledge necessary for this project from a functional standpoint (in a language agnostic sense).

  


• RTSP streaming on Android client using FFMpeg

  10 août 2013, par rurtle

  I am working on a hobby project the goal for which is to develop an Android application capable of streaming live feeds captured through web cams in a LAN setting using FFMpeg as the underlying engine. So far, I did the following -

  A. Compiling and generating FFMpeg related libraries for the following releases -

  FFMpeg version : 2.0
  NDK version : r8e & r9
  Android Platform version : android-16 & android-18thisthisthisthis
  Toolchain version : 4.6 & 4.8
  Platform built on : Fedora 18 (x86_64)
  

  B. Creating the files Android.mk & Application.mk in appropriate path.

  However, when it came to writing the native code for accessing appropriate functionality of FFMpeg from the application layer using Java, I'm stuck with following questions -

  a) Which all of FFMpeg's features I need to make available from native to app layer for streaming real-time feeds ?
  b) In order to compile FFMpeg for Android, I followed this link. Whether the compilation options are sufficient for handling *.sdp streams or do I need to modify it ?
  c) Do I need to make use of live555 ?
  

  I am totally new to FFMpeg and Android application development and this is going to be my first serious project for Android platform. I have been searching for relevant tutorials dealing with RTSP streaming using FFMpeg for a while now without much success. Moreover, I tried the latest development build of VLC player and found it to be great for streaming real-time feeds. However, it's a complex beast and the goal for my project is of quite limited nature, mostly learning - in a short time span.

  Could you suggest some pointers (e.g. links, documents or sample code) on how can I write the native code for utilizing FFMpeg library and subsequently use those functionality from the app layer for streaming real-time feeds ? Moreover, will really appreciate if you could let me know the kind of background knowledge necessary for this project from a functional standpoint (in a language agnostic sense).