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• FFMPEG send new segment to NAS while backup localhost [duplicate]

  27 juillet 2020, par BudinDelCielo

  ffmpeg captures my device (Game Capture 4K60 Pro MK.2 Video) on my local disk "D" and generates new segments every 1 hour 24 hours. everything works perfect. I would like to suppose two examples of failures.

  


  Is it possible to send my segments to my brakes simultaneously while it is stored on my D disk ?

  


  What would happen if my NAS were disconnected from the Network ? Could I continue capturing on my D disk, until the smb service is fixed ?

  


  How can I indicate in another batch process that a new segment is now available to copy to the NAS ? File sizes are not always the same because they vary by compression or duration by the -f -segment_time 3600 command. files never have the exact duration of an hour, so I am a bit lost to manage my segments. The new segments are 0kb, but could be due to capture failures, so here is my problem how to get information in another batch about the state of the segments.
Sorry my bad English.

  


  Thank you so much

  


  ffmpeg -hide_banner -guess_layout_max 0 ^
-f dshow -rtbufsize 1024M -video_size 1280x720 -i %DEVICE% ^
-c: v h264 -r 30000/1001 -aspect 16: 9 ^
-preset: v ultrafast -tune zerolatency -pix_fmt yuv420p ^
-c: a aac -ac 1 -ar 48000 -af aresample = async = 250 ^
-f segment -segment_time 3600 -strftime 1 -reset_timestamps 1 ^
-segment_format mp4 D:\%%Y%%m%%d-%%H%%M%%S.mp4


  


  it has not worked for me
FFMPEG : How to stream to multiple outputs with the same encoding independently

  


  Output #0, tee, to '[f=fifo:fifo_format=segment:segment_time=60:segment_atclocktime=1:strftime=1:reset_timestamps=1:segment_format=mp4]%Y%m%d-%H%M%S.mp4|[f=fifo:fifo_format=segment:segment_time=60:segment_atclocktime=1:strftime=1:reset_timestamps=1:segment_format=mp4]C :\Users\Home\Desktop\2%Y%m%d-%H%M%S.mp4' :
Output file #0 does not contain any stream

  


• ffmpeg 'av_seek_frame()' not work in bink video

  19 juillet 2020, par ghoflvhxj

  I'm trying to play video in my game by using ffmpeg-avformatlib library.

  


  'av_seek_frame()' work correctly when open '.avi' file.

  


  but if open .bik file, it's not work however the function return 0(success) and seek to 0 frame.

  


  anyone who know about this problem ? :( please tell me please...

  


  void CMovie::Play(const Time startFrame, const Time endFrame, const bool loop/* = false*/)
{
    ...
    if (m_bStart)
    {
        av_seek_frame(GetFormatContext(), GetVideoStreamIndex(), startFrame, AVSEEK_FLAG_FRAME);
        m_bStart = false;
    }
    ...
}


  


  i uploaded sample video player and video which call 'av_seek_frame()' to seek.

  


  play fire.bik and click left or right button, you can see seek to 0 frame. it's same as my program.

  


  check it please.
https://drive.google.com/file/d/1DVrX3EOzjxSfEA4EYpeSREaE2RLhB28Q/view?usp=sharing

  


• Audio effect ( a 20ms delay between right and the left channel) using Web Audio API or any Javascript Audio Library like howler.js, tone.js ?

  15 juillet 2020, par questionare_101

  I was wondering if there any option in howler.js, tone.js or any other javascript audio library which I can use to add a 20ms delay between the right and the left channel which makes the audio listening experience more immersive.

  


  Can it be achieved using Audio sprites with howler.js ? (but I guess it can't separate the right and the left channels)
https://medium.com/game-development-stuff/how-to-create-audiosprites-to-use-with-howler-js-beed5d006ac1

  


  Is there any ?

  


  Have also asked the same quest here : https://github.com/goldfire/howler.js/issues/1374

  


  I usually enable this option under ffdshow audio processor while playing audio using MPC-HC (Mega Version) on my pc. I was wondering how can I do it using Web Audio API or howler.js ?

  


  

  


  Somewhat like this kind of effect : Just delay the either channel by 20ms
Like we do in Adobe Audition