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• Streaming an IP camera through node.js

  18 juillet 2021, par Jacob

  I am trying to get an IP camera stream to run in the browser, and eventually phones. However, I am running into a problem accessing the RTSP stream through ffmpeg.
I am running the command below, substituting the correct info. I changed the camera to a static IP address and copied the IP address to STATIC_IP.

  


  /opt/homebrew/bin/ffmpeg -i rtsp://USER:PASS@STATIC_IP:554/stream1 -fflags flush_packets -max_delay 5 -flags -global_header -hls_time 5 -hls_list_size 3 -vcodec copy -y .\videos\ipcam\index.m3u8


  


  The build is logging the following :

  


  ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[rtsp @ 0x11b008200] CSeq 2 expected, 1 received.
rtsp://USER:PASS@STATIC_IP:554/stream1: Server returned 400 Bad Request


  


  I do not know what the CSeq 2 expected 1 received line is referring to so I am having trouble diagnosing the problem. Any help is appreciated.

  


• Documented ffmpeg commands not recognized by ffmpeg

  2 avril 2020, par agconti

  I'm trying to use options like, ldash and http_opts, as the dash muxer docs describe but FFmpeg doesn't recognize them. I'm on the latest released version of ffmpeg, v4.2.2. I see the changes in the ffmpeg master branch but not in the v4.2 release branch. Does ffmpeg not recognize them because they haven't been released yet ?

  



  Here's the dash muxer docs for reference : https://ffmpeg.org/ffmpeg-all.html#dash-2

  



  Here's a minimal example command with uncut output :

  



  Andrews-MacBook-Pro :: dev/test ‹master› » ffmpeg -re -i test.mp4 \                                   
-map 0 -map 0 -c:a libfdk_aac -c:v libx264 \
-b:v:0 800k -b:v:1 300k -s:v:1 320x170 -profile:v:1 baseline \
-profile:v:0 main -bf 1 \
-b_strategy 0 -ar:a:1 22050 \
-adaptation_sets "id=0,streams=v id=1,streams=a" \
-ldash 1 \
-f dash ./output/out.mpd

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Unrecognized option 'ldash'.
Error splitting the argument list: Option not found


  


• TLS issue with ffmpeg

  22 mai 2017, par true_gler

  I try to use TLS to verify a stream... (ffmpeg.org/ffmpeg-protocols.html#tls)

  ca_file, cafile=filename
  A file containing certificate authority (CA) root certificates to treat as trusted. If the linked TLS library contains a default this might not need to be specified for verification to work, but not all libraries and setups have defaults built in. The file must be in OpenSSL PEM format.

  tls_verify=1|0
  If enabled, try to verify the peer that we are communicating with. Note, if using OpenSSL, this currently only makes sure that the peer certificate is signed by one of the root certificates in the CA database, but it does not validate that the certificate actually matches the host name we are trying to connect to. (With GnuTLS, the host name is validated as well.)

  This is disabled by default since it requires a CA database to be provided by the caller in many cases.

  cert_file, cert=filename
  A file containing a certificate to use in the handshake with the peer. (When operating as server, in listen mode, this is more often required by the peer, while client certificates only are mandated in certain setups.)

  key_file, key=filename
  A file containing the private key for the certificate.

  listen=1|0
  If enabled, listen for connections on the provided port, and assume the server role in the handshake instead of the client role.

  Generally, i try to grab the screen at my client, send the captured via live stream to the server and display it there (with e.g. ffplay).
  All this happens in a LAN.

  I am a little bit confused...

  • What are the parameters at the client side (ffmpeg) ?
  • What are the parameters at the server side for display (ffplay) ? (Don’t i need here the ca_file specification ??)

  My commands I used so far, I am pretty sure I miss something ?!

  sudo ffmpeg -r 60 -f x11grab -s 1920x1080 -i :0.0 -c:v libx264 -b:v 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k -pix_fmt yuv420p -preset ultrafast -tune zerolatency -bsf:v h264_mp4toannexb -f mpegts "tls://localhost:8888?listen&cert=server-cert.pem&key=server-privatekey.pem"
  
  
  
  
  
  sudo ffplay -f mpegts "tls://localhost:8888"