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• creating mp4 url from m3u8 url from ffmpeg

  17 mai 2016, par user3440716

  I have a m3u8 url :

  http://esioslive6-i.akamaihd.net/hls/live/202874/AL_P_ESP1_INTER_ENG/playlist_1000.m3u8

  and i am trying to convert this link to mp4 in url form.

  what i am trying :

  ffmpeg -i  http://esioslive6-i.akamaihd.net/hls/live/202874/AL_P_ESP1_INTER_ENG/playlist_1000.m3u8 -c copy -bsf:a aac_adtstoasc http://esioslive6-i.akamaihd.net/hls/live/202874/AL_P_ESP1_INTER_ENG/output.mp4

  is it possible ?

  code which i am trying :

  <?php
  
  $i = "ffmpeg -i  http://esioslive6-i.akamaihd.net/hls/live/202874/AL_P_ESP1_INTER_ENG/playlist_1000.m3u8 -c copy -bsf:a aac_adtstoasc http://esioslive6-i.akamaihd.net/hls/live/202874/AL_P_ESP1_INTER_ENG/output.mp4";
  
  
  
  ?>
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  <video controls="controls" tabindex="0" autoplay="autoplay" loop="loop">
  
  <source src="&lt;?php">></source></video>

  I am new and I also saw this post FFMPEG mp4 from http live streaming m3u8 file ? but i dont understand why something is not happening.

• Transcode to virtual device/memory in VLC

  27 septembre 2013, par Atrotygma

  I have a unicast h264 stream from a video transmitter. Now, I would like to view the stream in a web browser using HTML5s tag. For this, I have to transcode it first via VLC to theora/ogg and then streaming it out as a HTTP stream. This works fine for 1 client, but since HTTP streaming isn't multicast, I have the fear that my server will break down really quick because VLC will transcode the input stream for every additional client request.

  For this reason, I'd like to write the transcoded stream in something like a 'virtual device' or memory or any other form of temporary storage (but dear god, NO files, I don't want to destroy my hard disk). Then, I would like to grab the transcoded stream with a secondary VLC instance and stream it via HTTP, so that in the end, I have to transcode it only once for all clients.

  In steps :

  1. [DONE] Grab H.264 unicast stream from transmitter via RTSP
  2. VLC instance 1 transcodes it to theora/ogg and writes it to a temporary memory
  3. VLC instance 2 reads from the memory and streams it via HTTP
  4. [DONE] Browser requests HTTP stream via HTTP live Streaming (html5 video).

  Is this possible in any way ?

• How to Dynamically Control FFmpeg Encoding Bitrate Based on Current Network Bandwidth ? [closed]

  26 novembre 2024, par Stove Fire

  I’ve implemented a program using FFmpeg where the server encodes OpenGL render results and sends them to the client. The client then decodes the video and renders the result onto a texture using OpenGL. What I’m trying to achieve is to adjust the encoding bitrate dynamically based on the current network bandwidth — higher bandwidth results in higher bitrate encoding, and lower bandwidth results in lower bitrate encoding.

  


  I use libx264 encoder and rtsp.

  


  I found the iperf tool online, which is useful for measuring network bandwidth, but it is a command-line tool and does not have a readily available API for programmatic use.

  


  My questions are :

  


  How can I monitor the current network bandwidth programmatically in my application (preferably in C++) ?

  


  Is there a way to integrate bandwidth monitoring into my FFmpeg encoding process so I can adjust the bitrate dynamically based on the current network conditions ?