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• ffmpeg posting to nginx hangs after 90 minutes

  22 octobre 2018, par Harnek Gulati

  I’m using a very simple program to push an ffmpeg stream from my raspberry pi camera to a nginx server. However, it fails after 90 minutes, with almost every single Raspberry Pi I use (I have this code on 12 Raspberry Pis).
  Here is my ffmpeg command :

  raspivid -o - -t 0 -w 640 -h 480 -fps 25 | ffmpeg -re -i - -vcodec copy -hls_time 4 -f hls -hls_list_size 5 -hls_wrap 5 -threads 0  -timeout 5000 -max_reload 20000 -method PUT http://{}:{}/live/{}

  And here is my configuration for nginx.conf :

  #user nobody;
  
  load_module /usr/lib/nginx/modules/ndk_http_module.so;
  
  load_module /usr/lib/nginx/modules/ngx_http_lua_module.so;
  
  
  
  worker_processes auto;
  
  env CONTROL_SERVER_IP;
  
  
  
  
  
  #error_log /var/log/nginx/error.log;
  
  error_log /dev/stdout info;
  
  events {
  
      worker_connections 1024;
  
  }
  
  
  
  http {
  
      include     mime.types;
  
      default_type    application/octet-stream;
  
      access_log /dev/stdout;
  
      sendfile on;
  
      keepalive_requests 100000;
  
      keepalive_timeout 30;
  
  
  
    client_max_body_size 10M;
  
    server {
  
      listen 80;
  
      server_name localhost;
  
  
  
      location /live {
  
        root /var/static;
  
              client_body_temp_path   /var/static/client_temp;
  
  
  
              dav_methods PUT;
  
              create_full_put_path on;
  
              dav_access user:rw  group:r     all:r;
  
  
  
              types {
  
                  application/vnd.apple.mpegurl m3u8;
  
              }
  
  
  
              # Disable Cache
  
              add_header Cache-Control no-cache;
  
              include cors.conf;
  
    }
  
    }
  
  }
  
  
  
  daemon off;

  If anyone can help me, I would deeply appreciate it. I’ve been pulling my hair out trying to figure out this bug. On the raspberry pi, it hangs on this :

  [hls @ 0x25a8c90] Opening 'http://192.168.8.1:80/live/c35d8935-0a31-4d22-b71a-ad3f4f1d47631.ts' for writing
  
  frame=105609 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105518 speed=1.02xframe=105623 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105532 speed=1.02xframe=105636 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105545 speed=1.02xframe=105648 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105557 speed=1.02xframe=105662 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105571 speed=1.02xframe=105674 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105583 speed=1.02xframe=105688 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105597 speed=1.02xframe=105700 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105609 speed=1.02xframe=105714 fps= 25 q=-1.0 q=1.6 size=N/A time=01:11:40.00 bitrate=N/A dup=0 drop=105623 speed=1.02x[hls muxer @ 0x25a9200] Duplicated segment filename detected: c35d8935-0a31-4d22-b71a-ad3f4f1d47631.ts
  
  [hls @ 0x25a8c90] Opening 'http://192.168.8.1:80/live/c35d8935-0a31-4d22-b71a-ad3f4f1d47632.ts' for writing

  And on the nginx logs, I get :

  192.168.10.242 - - [21/Oct/2018:22:34:01 +0000] "PUT /live/c35d8935-0a31-4d22-b71a-ad3f4f1d4763.m3u8 HTTP/1.1" 204 0 "-" "Lavf/57.83.100"
  
  192.168.10.242 - - [21/Oct/2018:22:35:04 +0000] "PUT /live/c35d8935-0a31-4d22-b71a-ad3f4f1d47633.ts HTTP/1.1" 408 0 "-" "Lavf/57.83.100"

  I need to set up a way to either a) keep consistent connections longer than 90 minutes or b) detect when the 408 error happens and stop it from hanging.

  FFMPEG version : 3.4.1

• crop, rearrange middle of video frame with ffmpeg

  14 juin 2021, par Gavriel

  I have a few hundred video files from a security camera. Let's say here's the full frame :

  



  +---------------------+-------------------------+
| 2018-10-10 03:02:12 |                         |
+---------------------+                         |
|                         +--------------+      |
|                         | IMPORTANT    |      |
|                         +--------------+      |
|                                               |
+-----------------------------------------------+


  



  I have 2 areas that I want to keep : the date and the inner box.
I know how to crop to either of them, for example :

  



  ffmpeg -i in.mp4 -filter:v "crop=1120:320:40:60" -c:a copy out.mpg


  



  However what I'd like to be able to do is to rearrange the frame to get this in the output :

  



  +---------------------+
| 2018-10-10 03:02:12 |
+------+--------------+
| X X X|  IMPORTANT   |
+------+--------------+


  



  (X X X would be just black, or if that's hard to do then it can be whatever part of the original video)
Any idea how can I do this ?

  


• Files gets corrupted after resizing with ffmpeg

  26 octobre 2018, par Liam

  I’m making a bot that sends videos to instagram. However instagram only allows 1:1 aspect ratio videos, so I’m trying to use ffmpeg in python (ffmpy module) to resize the video (.mp4) file.

  This is the ffmpeg code I’m using
  -analyzeduration 20M -probesize 20M -y -i FILE.MP4 -vf "scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2:white NEW_FILE.MP4

  However this corrupts the file ? The size of the file before resizing is 1.815305 MB but after the ffmpeg job it’s 0.058714 MB. So what gives ?

  (I also tried using -aspect 1:1 but that corrupts the file too)

  Ffmpy seems to work fine, because sometimes if the file is over 20 MB i run this to reduce the file size -y -i FILE.MP4 -vcodec libx264 -crf 24 NEW_FILE.MP4 and that works fine.

  Here’s the full log if needed :

  Oct 23 07:32:03 test-instabot app/worker.1: MP4 SIZE BEFORE ASPECT RESIZE IS: 1.815305 MB 
  
  Oct 23 07:32:03 test-instabot app/worker.1: ffmpeg version 4.0.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libavutil      56. 14.100 / 56. 14.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libavcodec     58. 18.100 / 58. 18.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libavformat    58. 12.100 / 58. 12.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libavdevice    58.  3.100 / 58.  3.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libavfilter     7. 16.100 /  7. 16.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libswscale      5.  1.100 /  5.  1.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libswresample   3.  1.100 /  3.  1.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   libpostproc    55.  1.100 / 55.  1.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './media/t4nYbas.mp4': 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   Metadata: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     major_brand     : isom 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     minor_version   : 512 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     compatible_brands: isomiso2avc1mp41 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     encoder         : Lavf58.12.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   Duration: 00:00:06.04, start: 0.000000, bitrate: 2404 kb/s 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x854, 2402 kb/s, 29.98 fps, 29.98 tbr, 19184 tbn, 59.95 tbc (default) 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     Metadata: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:       handler_name    : VideoHandler 
  
  Oct 23 07:32:03 test-instabot app/worker.1: Stream mapping: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264)) 
  
  Oct 23 07:32:03 test-instabot app/worker.1: Press [q] to stop, [?] for help 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [swscaler @ 0x6882200] Warning: data is not aligned! This can lead to a speed loss 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] profile High, level 3.2 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 
  
  Oct 23 07:32:03 test-instabot app/worker.1: Output #0, mp4, to './media/t4nYbas.mp4': 
  
  Oct 23 07:32:03 test-instabot app/worker.1:   Metadata: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     major_brand     : isom 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     minor_version   : 512 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     compatible_brands: isomiso2avc1mp41 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     encoder         : Lavf58.12.100 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1080x1080, q=-1--1, 29.98 fps, 19184 tbn, 29.98 tbc (default) 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     Metadata: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:       handler_name    : VideoHandler 
  
  Oct 23 07:32:03 test-instabot app/worker.1:       encoder         : Lavc58.18.100 libx264 
  
  Oct 23 07:32:03 test-instabot app/worker.1:     Side data: 
  
  Oct 23 07:32:03 test-instabot app/worker.1:       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 
  
  Oct 23 07:32:03 test-instabot app/worker.1: frame=    1 fps=0.0 q=29.0 Lsize=      57kB time=00:00:00.00 bitrate=9032923.1kbits/s speed=7.89e-05x     
  
  Oct 23 07:32:03 test-instabot app/worker.1: video:57kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.383109% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] frame I:1     Avg QP:29.91  size: 57223 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] mb I  I16..4: 12.6% 74.9% 12.5% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] 8x8 transform intra:74.9% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] coded y,uvDC,uvAC intra: 52.6% 24.4% 1.0% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i16 v,h,dc,p: 94%  0%  5%  1% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 10% 28%  4%  6%  5%  7%  5%  7% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 17% 15%  7%  9%  7%  9%  7%  9% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] i8c dc,h,v,p: 78%  9% 12%  2% 
  
  Oct 23 07:32:03 test-instabot app/worker.1: [libx264 @ 0x66c99c0] kb/s:13722.08 
  
  Oct 23 07:32:03 test-instabot app/worker.1: MP4 SIZE AFTER ASPECT RESIZE IS: 0.058714 MB