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• FFMPEG or GStreamer - HLS to UDP [closed]

  24 août 2023, par Alex Romero

  I can't manage to input HLS and output UDP on these two softwares correctly.

  


  I'm trying to understand how to use these two softwares. I got better results using FFMPEG but somehow, I didn't manage adding a hls playlist that started with "https". It works with "http". What I found facsinating about this was that FFMPEG can even output UDP through the Ethernet port, by indicating the destination IP, which would be another computer/server. I'm not sure if GStreamer has this capability, since I'm starting to understand how it works.

  


  I know HLS means HTTP Live Streaming and UDP stands for User Datagram Protocol.

  


  Here are 2 of the examples I used for each software :

  


  FFMPEG

  


  ffmpeg -i https://hls_source -c:v libx264 -crf 23 -preset fast -c:a aac -s 1280x720 -f mpegts -bufsize 4000k -max_delay 1000000 -fflags nobuffer udp ://destination_ip:port ?pkt_size=1316

  


  GStreamer(runs but not work)

  


  gst-launch-1.0 souphttpsrc location=http://hls_source ! hlsdemux ! udpsink host=ip port=1234

  


  I want to know if there's any way I can fix the FFMPEG playlist issue. If there isn't any solution, how can I fix the issue I'm having on GStreamer. All the testing was done through VLC Media Player. Any suggestions or recommendations are gratefully accepted. If I have to try another software that is focused on this, please let me know.

  


• Convert MKV to HLS with all audio tracks and subtitles available

  4 novembre 2023, par Tutifruti

  For the past few weeks, I've been trying to convert MKV and HLS files. Currently, I'm burning the first available subtitle track of the file in the video and keeping only the first audio track.

  


  What i would like to do :
Input an MKV file and convert it to HLS while keeping all the audio tracks and all the subtitle tracks of the MKV file in question.

  


  So, I'd like to know how to : input an MKV file to convert it to HLS while keeping all the audio tracks and subtitles in the MKV file in question, and then group them together in a master.m3u8 file that would include the video, audio and subtitles.

  


  I've read the ffmpeg documentation, but as I've only been using it for a short time, I can't manage to do this.

  


  Thanks to anyone who can help or give me advice.

  


  Have a nice day

  


  I tried using ffprobe to get information about the MKV.

  


  I then selected the audio/subtitle tracks and tried to make a loop in python/PHP-ffmpeg to extract the subtitles in WebVTT format and the same for the audio tracks, then linked the whole thing once the video had been converted to HLS.

  


  I got nothing but errors, the script just didn't work...

  


• ffmpeg Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000)

  1er juillet 2021, par NOYEAH

  enter image description here

  


  It works well with a regular rtsp ip.

  


  ex)ffmpeg -y -re -rtsp_transport tcp -i rtsp ://admin:123456@192.168.199.200/stream -i rtsp ://admin:123456@192.168.199.200/stream -filter_complex hstack -f mpegts -vcodec mpeg1video -s 960x540 -b:v 1000k -qmin 1 -qmax 50 -maxrate 1000k -bufsize 1000k -an -r 50 -bf 0 -codec:a mp2 -ar 44100 -b:a 128k http://localhost:8081/password

  


  It does not work when the DDNS and port-forwarding address is applied.

  


  ex)ffmpeg -y -re -rtsp_transport tcp -i rtsp ://admin:123456@testofficecctv.iptime.org:554/stream1 -i rtsp ://admin:123456@testofficecctv.iptime.org:554/stream1 -filter_complex hstack -f mpegts -vcodec mpeg1video -s 960x540 -b:v 1000k -qmin 1 -qmax 50 -maxrate 1000k -bufsize 1000k -an -r 25 -bf 0 -codec:a mp2 -ar 44100 -b:a 128k http://localhost:8081/password

  


  I need your help.

  


  Thanks !