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• How to use FFmpeg & "tee" to UDP video (only) stream to another computer while recording to computer with USB camera

  13 juillet 2020, par pomptondrive

  I'm trying to get "tee muxer" to work with FFmpeg, but I'm not having much luck. Basically I would like to stream a USB camera with UDP to another computer with an decent/acceptable result to monitor, while recording around 15 FPS in an economical (compressed) fashion that won't take up too much disk space. Honestly, I don't understand the entire syntax of using "tee"—I guess that's obvious. I have looked at some of the FFmpeg documentation, but it doesn't seem comprehensive enough in this instance.

  


  So, currently, I have experimented a little and this works for streaming (picking up with VLC on the other computer) :

  


  ffmpeg -f v4l2 -i /dev/video0 -profile:v high -pix_fmt yuvj420p -level:v 4.1 -preset ultrafast -tune zerolatency -vcodec libx264 -r 15 -b:v 512k -s 640x480 -f mpegts -flush_packets 0 udp://192.168.0.19:5000?pkt_size=1316


  


  I've also checked and this records OK (I do NOT actually want it to ffplay on this machine ; this was just some code I found to test.) :

  


  ffmpeg -f v4l2 -i /dev/video0 -map 0 -c:v libx264 -f tee "Documents/video01.mkv|[f=nut]pipe:" | ffplay pipe:


  


  So the next objective is to combine the two with tee, and do a UDP stream to the other computer, while recording an mkv file to the computer with the camera. I've tried several ways to do this with no success ; results have been just one or the other, because my syntax is crap, or I'm just particularly inept at this particular task. ;-)

  


  After that (icing on the cake) would be to create separate *.mkv files at 15-minute intervals, and have them self-destruct after a couple of days.

  


  Any help with the tee business would be greatly appreciated.

  


• FFmpeg HLS input stream shows "Packet corrupt" and "timestamp discontinuity" errors when pushing to RTMP server [closed]

  22 mai, par Amul Bhatia

  I'm trying to restream an HLS URL (https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1') into my RTMP server with FFmpeg. The command I use is :

  


  ffmpeg -i "https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1" -c:v libx264 -preset veryfast -b:v 1000k -c:a aac -b:a 128k -f flv rtmp://69.62.85.241/live/streamkey


  


  getting error

  


  ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
  configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
[hls @ 0x60992c0c8880] Skip ('#EXT-X-VERSION:3')
[hls @ 0x60992c0c8880] Skip ('#EXT-X-DISCONTINUITY')
    Last message repeated 9 times
[hls @ 0x60992c0c8880] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
    Last message repeated 1 times
Input #0, hls, from 'https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1':
  Duration: 00:01:00.00, start: 1.466667, bitrate: 0 kb/s
  Program 0
    Metadata:
      variant_bitrate : 0
  Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, unknown/bt709/iec61966-2-1), 854x480 [SAR 1:1 DAR 427:240], 30 fps, 30 tbr, 90k tbn
    Metadata:
      variant_bitrate : 0
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x60992cd68b00] using SAR=1/1
[libx264 @ 0x60992cd68b00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x60992cd68b00] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x60992cd68b00] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://69.62.85.241/live/streamkey':
  Metadata:
    encoder         : Lavf60.16.100
  Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p(tv, unknown/bt709/iec61966-2-1, progressive), 854x480 [SAR 1:1 DAR 427:240], q=2-31, 1000 kb/s, 30 fps, 1k tbn
    Metadata:
      variant_bitrate : 0
      encoder         : Lavc60.31.102 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: N/A
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 6000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 12000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 18000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 24000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 30000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 36000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 42000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 48000000
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 54000000
[flv @ 0x60992c88a340] Failed to update header with correct duration.44.8kbits/s speed=22.6x
[flv @ 0x60992c88a340] Failed to update header with correct filesize.
[out#0/flv @ 0x60992cc36180] video:304kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 11.671993%
frame= 1800 fps=685 q=-1.0 Lsize=     339kB time=00:00:59.90 bitrate=  46.4kbits/s speed=22.8x
[libx264 @ 0x60992cd68b00] frame I:8     Avg QP: 2.07  size: 20330
[libx264 @ 0x60992cd68b00] frame P:454   Avg QP: 0.23  size:   218
[libx264 @ 0x60992cd68b00] frame B:1338  Avg QP: 0.21  size:    37
[libx264 @ 0x60992cd68b00] consecutive B-frames:  0.9%  0.0%  0.0% 99.1%
[libx264 @ 0x60992cd68b00] mb I  I16..4: 86.7%  0.3% 13.0%
[libx264 @ 0x60992cd68b00] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  1.4%  0.0%  0.0%  0.0%  0.0%    skip:98.6%
[libx264 @ 0x60992cd68b00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.1%  0.0%  0.0%  direct: 0.1%  skip:99.8%  L0:59.9% L1:40.1% BI: 0.0%
[libx264 @ 0x60992cd68b00] final ratefactor: -25.04
[libx264 @ 0x60992cd68b00] 8x8 transform intra:0.3% inter:1.8%
[libx264 @ 0x60992cd68b00] coded y,uvDC,uvAC intra: 13.5% 0.0% 0.0% inter: 0.2% 0.0% 0.0%
[libx264 @ 0x60992cd68b00] i16 v,h,dc,p: 90%  6%  4%  0%
[libx264 @ 0x60992cd68b00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 59% 12% 28%  0%  1%  1%  0%  0%  0%
[libx264 @ 0x60992cd68b00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 18% 19%  4%  4%  4%  3%  4%  3%
[libx264 @ 0x60992cd68b00] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 0x60992cd68b00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x60992cd68b00] kb/s:41.38


  


  However, I get repeated errors like :

  


  Packet corrupt (stream = 0, dts = xxxx)

  


  timestamp discontinuity (stream id=0)

  


  corrupt input packet in stream 0

  


  The stream partially works but seems unstable. How can I fix this error ?

  


  my nginx.conf

  


  rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live {
            live on;
            record off;

            hls on;
            hls_path /var/www/hls;
            hls_fragment 5;                  # each TS segment = 5s
            hls_playlist_length 120;         # keep last 2 minutes of stream
            hls_cleanup off;                 # do not delete old segments
        }
    }
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile on;
    keepalive_timeout 65;

    server {
        listen 81;

        location /hls {
            root /var/www;
            types {
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }

            add_header Cache-Control no-cache;
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
            add_header Access-Control-Allow-Headers 'Range';
            add_header Access-Control-Expose-Headers 'Content-Length, Content-Range';
        }
    }
}


  


  The same url is working fine when used in browser, but extracting the stream and putting it in RTMP server and accessing my RTMP server at rtmp ://69.62.85.241/live/streamkey not working

  


• Revert "configure : Disable -Wbool-operation."

  9 octobre 2017, par Mark Thompson

  Revert "configure : Disable -Wbool-operation."
  This reverts commit c2d155e11ee5ec732d471982f2dee43703bcd5a7.
  GCC 6 incorrectly passes the configure test and then logs many warnings
  
  of the form :
  src/libavformat/dump.c : At top level :
  
  cc1 : warning : unrecognized command line option ‘-Wno-bool-operation’
  

  • [DH] configure