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• RTSP Stream Recording using FFMPEG

  9 juillet 2022, par Shanavas K Abdul Rahman

  I am not in to scripting. It would be really helpful if someone can help with a bash or python script on Raspbian v5 for my below requirement.

  


  I am trying to locally record Eufy Cam human detection using ffmpeg. I have managed to find the command to fetch the stream which is ffmpeg -hide_banner -y -loglevel verbose -rtsp_transport tcp -use_wallclock_as_timestamps 1 -i rtsp://192.168.xx.xx/live0 -vcodec copy -acodec copy -f segment -reset_timestamps 1 -segment_time 900 -segment_format mkv -strftime 1 "/media/pi/hdd/cam_name/camname$(date +"%Y-%m-%d-%H-%M-%S").mkv.

  


  Since these are battery operated cameras I cannot stream continuously. Camera generates stream only when it detects human as per my camera configuration. So when there is no human presence, ffmpeg return error "404 Stream Not Found" which is expected result. I want ffmpeg to reattempt in endless loop if previous attempts returns error 404 Stream Not Found.

  


  When human presence is detected, stream is being recorded to the mentioned location which works well. I need ffmpeg to reconnect even after successful stream fetch to seek for next motion recording. Successful stream download ends as follows.

  


  No more output streams to write to, finishing.

  


  :04.26 bitrate=N/A speed=0.559x    
[segment @ 0x2172d60] segment:'/media/pi/hdd/cam_name/camname2022-07-09-11-13-29.mkv' count:0 ended
[AVIOContext @ 0x2143630] Statistics: 16 seeks, 13 writeouts
frame=   31 fps=4.1 q=-1.0 Lsize=N/A time=00:00:04.26 bitrate=N/A speed=0.559x    
video:359kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Input file #0 (rtsp://192.168.100.16/live0):
  Input stream #0:0 (video): 34 packets read (373534 bytes); 
  Input stream #0:1 (audio): 42 packets read (7884 bytes); 
  Total: 76 packets (381418 bytes) demuxed
Output file #0 (/media/pi/Extreme 900/Gate_View/GateView2022-07-09-11-13-29.mkv):
  Output stream #0:0 (video): 31 packets muxed (367940 bytes); 
  Output stream #0:1 (audio): 42 packets muxed (7884 bytes); 
  Total: 73 packets (375824 bytes) muxed


  


  In summary, I am looking for a script with below conditions.

  


  IF terminal returns 404 Stream Not Found" OR "packets muxed THEN repeat same command in endless loop.

  


  I have several battery operated cameras. Please help with script.

  


  Thanks in advance.

  


  Regards,

  


  Shanavas Abdulrahman

  


• build guardianproject's ffmpeg library using android ndk for android on windows

  25 juillet 2014, par Abdul Qadir

  I need to encode/decode audio files to mp3 inside my android project using ffmpeg, but I encounter the error unknown encoder libmp3lame while doing so. On reading the guidelines on the guardianproject’s ffmpeg github page : https://github.com/guardianproject/android-ffmpeg
  I probably need to add --enable-libmp3lame in the configure_ffmpeg.sh file.

  I’m using windows. I’ve cloned the github project. I’ve edited the configure_ffmpeg.sh file. According to the guidelines to build, the following command in cmd is not working probably because I’m on windows
  github-project-root: path-to-ndk\ndk-build configure_make_everything.sh

  I get the following error :

  Android NDK: Could not find application project directory
Android NDK: Please define NDK_PROJECT_PATH variable to point to it
path-to-ndk\build/core/build-local.mk:/148: *** Android NDK: Aborting. Stop.

  I need to enable libmp3lame so I can encode/decode my audio files to mp3 inside my android project. Any help would be appreciated.

• Ubuntu 16.04 ffmpeg cmake is error [on hold]

  15 septembre 2017, par yang

  I am in ubuntu 16.04 system, the use of apt-get way to install ffmpeg developer library, in the use of cmake build project, the project error.