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• Restream a rtsp stream to a rtmp server

  26 septembre 2022, par Sayan Chakraborty

  I have few hikvision cameras, I want to access it remotely in an app that I wrote. I am able to get the camera feed when I am connected to the network which has the camera. So I have setup a rtmp server in ec2 with Nginx, where I will be broadcasting the camera video feed through the raspberry pi, and would Be able to fetch the feed in my app.

  


  I used obs to stream the camera feed to the ramp server and was able to successfully get the video feed from the ec2 instance, but when using ffmpeg I am getting the following error.

  


  pi@raspberrypi:~$ ffmpeg -re -i rtsp://admin:pass@192.168.0.253/ISAPI/Streaming/channels/101 -an -c:v libx264 -f flv rtmp://ec2instanceip/live
ffmpeg version 4.2.7-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
  configuration: --prefix=/usr --extra-version=0ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  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
[rtsp @ 0x55dd3b126300] Missing PPS in sprop-parameter-sets, ignoring
[rtsp @ 0x55dd3b126300] UDP timeout, retrying with TCP
[rtsp @ 0x55dd3b126300] method PAUSE failed: 551 Option not supported
[rtsp @ 0x55dd3b126300] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://admin:pass@192.168.0.253/ISAPI/Streaming/channels/101':
  Metadata:
    title           : Media Presentation
  Duration: N/A, bitrate: 64 kb/s
    Stream #0:0: Video: h264, none, 90k tbr, 90k tbn, 180k tbc
    Stream #0:1: Audio: pcm_mulaw, 8000 Hz, mono, s16, 64 kb/s
Output #0, flv, to 'rtmp://ec2instanceip/live':
Output file #0 does not contain any stream


  


• Is it posible to add an HTML page as an overlay in a RTMP stream using Nginx and FFMPEG ?

  4 août 2021, par tanowalla

  I have already installed Nginx on a EC2 instance (Ubuntu 18.04) for livestreaming to Youtube using RTMP. I want to setup a HTML page with a world clock and transparent background.

  


  I installed Nginx using this tutorial.

  


  https://www.scaleway.com/en/docs/setup-rtmp-streaming-server/

  


  Would it be possible to load the HTML page using NGINX and FFMPEG so i can overlay it over the RTMP livestream incoming from a camera and push it to Youtube ?

  


  I hope someone gets the idea, i apologize for my english, it is not my native language and have really no idea if this is even possible.

  


  Thank you very much in advance.

  


• Is there a way to encode multiple audio and sub streams managed by language

  17 juillet 2020, par ScarVite

  so, i have a folder full of .mkv's, i have a one liner which can convert them all to mp4's
these new files now have multiple audio and subtitle streams, one eng, one ger one jap and for subtitles the same, is there an way with which i can easily specify use f.e. German audio and burn eng subtitles.
My One Liner :

  


  for /R %f IN (*.mkv) DO ffmpeg -i "%f" -c copy "%~nf.mp4"


  


  How would i have to modify this one Liner for it to work.
I found out that with -vf subtitles=foo.ass i can hardcode subtitles, but how do i select one audio and or subtitle stream from included with the file ?
and how would i select f.e. a audio atream but none subtitle stream

  


  I found out, that with

  


  -map 0:V -map 0:a:m:language:ger -map 0:s


  


  I can get a file with which only has the german audio files, but now i need the same for the subtitles, to only include the english ones