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• is there a way to auto trim parts of my video when a specefic color or text shows up on those parts

  10 novembre 2022, par Yousif K Al Ameen 1

  I play a game and record it, but unfortunately many parts of that recording is when my internet connection gets lost for several seconds. During that period it only shows a text that says "connection lost". Then the game resumes normally in few seconds after the connection is back.
Is there a software or a way that allows me to auto trim these connection lost periods from my viedeo ? Please help I need to trim a lot of these periods so that I can post cool gaming videos online without the "connection lost" scenes included.

  


  I tried searching on youtube and found some ffmpeg, python, and opencv methods but none of which is suitabal or easy to apply for my situation

  


• lavc/opusdsp : RISC-V V (128-bit) postfilter

  5 octobre 2022, par Rémi Denis-Courmont

  lavc/opusdsp : RISC-V V (128-bit) postfilter
  This is implemented for a vector size of 128-bit. Since the scalar
  
  product in the inner loop covers 5 samples or 160 bits, we need a group
  
  multipler of 2.
  To avoid reconfiguring the vector type, the outer loop, which loads
  
  multiple input samples sticks to the same multipler. Consequently, the
  
  outer loop loads 8 samples per iteration. This is safe since the minimum
  
  period of the CELT codec is 15 samples.
  The same code would also work, albeit needlessly inefficiently with a
  
  vector length of 256 bits. A proper implementation will follow instead.
  

  • [DH] libavcodec/opusdsp.c
  • [DH] libavcodec/opusdsp.h
  • [DH] libavcodec/riscv/Makefile
  • [DH] libavcodec/riscv/opusdsp_init.c
  • [DH] libavcodec/riscv/opusdsp_rvv.S

• FFMPEG stream to youtube crashing

  29 septembre 2022, par jakeb

  We have a script that runs FFMPEG and broadcasts a tab recording from puppeteer, it will run fine for a period of time, but if the chromium tab from puppeteer ends up doing certain things (playing a youtube video, for example) FFMPEG crashes. It doesn't matter if the video is 4k 60 FPS, or if it's a 480i video from 2009, the result seems to be the same.

  


  This is the FFMPEG command we're running :

  


  ffmpeg -loglevel info -i - -c:v libx264 -b:v 15000k -preset ultrafast -tune animation -force_key_frames "expr:gte(t,n_forced*2)" -sc_threshold 0 -c:a aac -minrate 15000k -s 1920x1080 -r 60 -vsync 1 -max_muxing_queue_size 1024 -max_interleave_delta 0 -f flv -flvflags no_duration_filesize "rtmps://a.rtmps.youtube.com/live2/*****"


  


  This is the output when it crashes :

  


  frame= 6554 fps= 57 q=0.0 size=   17033kB time=00:02:00.02 bitrate=1162. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6564 fps= 56 q=1.0 size=   17189kB time=00:02:01.02 bitrate=1163. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6566 fps= 56 q=0.0 size=   17224kB time=00:02:02.05 bitrate=1156. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6570 fps= 56 q=1.0 size=   17276kB time=00:02:03.07 bitrate=1149. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6580 fps= 55 q=2.0 size=   17431kB time=00:02:04.10 bitrate=1150. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6602 fps= 55 q=0.0 size=   17730kB time=00:02:05.12 bitrate=1160. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6648 fps= 55 q=1.0 size=   18802kB time=00:02:06.12 bitrate=1221. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6710 fps= 55 q=0.0 size=   18824kB time=00:02:07.15 bitrate=1212. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6770 fps= 55 q=0.0 size=   19539kB time=00:02:08.17 bitrate=1248. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 6831 fps= 55 q=1.0 size=   19560kB time=00:02:09.19 bitrate=1240. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7013 fps= 56 q=0.0 size=   21011kB time=00:02:10.39 bitrate=1320. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7256 fps= 58 q=0.0 size=   22483kB time=00:02:10.52 bitrate=1411. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7625 fps= 60 q=0.0 size=   24692kB time=00:02:10.58 bitrate=1549. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7828 fps= 62 q=2.0 size=   25456kB time=00:02:10.82 bitrate=1594. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7895 fps= 62 q=0.0 size=   35079kB time=00:02:12.03 bitrate=2176. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7936 fps= 62 q=2.0 size=   42929kB time=00:02:12.83 bitrate=2647. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 7981 fps= 62 q=2.0 size=   53139kB time=00:02:13.53 bitrate=3259. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8030 fps= 62 q=0.0 size=   63944kB time=00:02:14.32 bitrate=3899. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8081 fps= 62 q=0.0 size=   74523kB time=00:02:15.16 bitrate=4516. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8128 fps= 62 q=2.0 size=   84385kB time=00:02:15.94 bitrate=5084. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8145 fps= 62 q=1.0 size=   87711kB time=00:02:16.24 bitrate=5273. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8193 fps= 62 q=1.0 size=   98046kB time=00:02:17.01 bitrate=5862. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8204 fps= 62 q=0.0 size=  100564kB time=00:02:17.27 bitrate=6001. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8252 fps= 62 q=0.0 size=  110255kB time=00:02:18.04 bitrate=6543. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
frame= 8266 fps= 62 q=2.0 size=  113024kB time=00:02:18.29 bitrate=6695. 5d7095f4-8035-4dc5-85e1-535f90d1935b   
[tls @ 0x563ee0299440] Error in the push function.
av_interleaved_write_frame(): Input/output error
    Last message repeated 2 times
Error writing trailer of rtmps://a.rtmps.youtube.com/live2/****: Input/output error
frame= 8311 fps= 62 q=2.0 Lsize=  123071kB time=00:02:19.02 bitrate=7252.1kbits/s dup=7716 drop=1 speed=1.04x    
video:123035kB audio:202kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[tls @ 0x563ee0299440] The specified session has been invalidated for some reason.
    Last message repeated 1 times
[libx264 @ 0x563ee026fe80] frame I:70    Avg QP: 0.31  size:221022
[libx264 @ 0x563ee026fe80] frame P:2770  Avg QP: 0.05  size: 29868
[libx264 @ 0x563ee026fe80] frame B:5471  Avg QP: 1.56  size:  6271
[libx264 @ 0x563ee026fe80] consecutive B-frames:  0.8%  1.7% 97.5%
[libx264 @ 0x563ee026fe80] mb I  I16..4: 100.0%  0.0%  0.0%
[libx264 @ 0x563ee026fe80] 
mb P  I16..4:  1.8%  0.0%  0.0%  P16..4:  5.2%  0.0%  0.0%  0.0%  0.0%    skip:93.0%
[libx264 @ 0x563ee026fe80] mb B  I16..4:  0.1%  0.0%  0.0%  B16..8:  0.6%  0.0%  0.0%  direct: 2.8%  skip:96.5%  L0:46.8% L1:38.5% BI:14.7%
[libx264 @ 0x563ee026fe80] final ratefactor: -5.03
[libx264 @ 0x563ee026fe80] coded y,uvDC,uvAC intra: 50.9% 43.8% 40.5% inter: 2.3% 1.8% 1.7%
[libx264 @ 0x563ee026fe80] i16 v,h,dc,p: 53% 30%  4% 12%
[libx264 @ 0x563ee026fe80] i8c dc,h,v,p: 58% 24%  8% 10%
[libx264 @ 0x563ee026fe80] kb/s:7653.50
[aac @ 0x563ee0282500] Qavg: 61059.410
Conversion failed!
[ERROR] 16:33:59 Error: write EPIPE