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• How do I convert RTSP stream for iOS browser viewing

  6 mars 2017, par humble_coder

  TL ;DR

  I need to convert full RTSP (A/V) stream from Axis IP cameras to be viewed in a fully-contained/not-full-screen div in an iOS browser. Think : "Youtube live stream as viewed from iOS browser". I’ve seen several links that hint at the issue. . .

  • Streaming via RTSP or RTP in HTML5
  • RTSP tunneled HTTP, FFMPEG
  • How can I display an RTSP video stream in a web page ?
  • Embed RTSP Stream into Browser

  . . .but they’re either "incomplete" or out of date.

  The solution must be local and remain behind site firewall (so no external services).

  MORE DETAIL

  I’m currently writing a custom "Axis IP Camera Manager" Vue/Laravel web app for a client. The initial requirements were very simple :

  1. scan network for axis devices and store addresses/info for future use

  2. display grid of MJPEG for selected camera(s).

  The initial requirements were fairly straightforward. Now, though, there are additional requirements :

  3. Record RTSP stream to [seconds] long MP4 streams.

  4. Convert an RTSP stream from AXIS IP CAMERA to something viewable in both desktop and mobile browsers with full A/V.

  I’ve successfully managed #3 by using ffmpeg to capture and store the stream to MP4. However, I’m no video aficionado, and the nature of #4 is still a bit fuzzy to me. Per my understanding I can’t watch RTSP streams in a browser in iOS, but I also can’t stream an "in-process" MP4 over HTTP. I’ve seen references to several items such as Red5, Live555, Wowza, ffserver (discontinued ?), etc. but I’m completely unfamiliar with them. In the short term, I’m looking for a quick "live" conversion solution. In the long term, I’m interested in a deeper understanding of the issue(s) at hand. Any current info/expertise/links/manuals would be appreciated.

• avutil/log : added av_log_format_line2 which returns buffer length

  27 avril 2016, par Andreas Weis

  avutil/log : added av_log_format_line2 which returns buffer length
  The new function behaves the same as av_log_format_line, but also forwards
  
  the return value from the underlying snprintf call. This will allow
  
  callers to accurately determine the size requirements for the line buffer.
  Signed-off-by : Andreas Weis <github@ghulbus-inc.de>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] doc/APIchanges
  • [DH] libavutil/log.c
  • [DH] libavutil/log.h
  • [DH] libavutil/version.h

• ffmpeg command for overlaying a video onto am image with blend

  6 décembre 2022, par tebowner

  I have these requirements but cant seem to get this even close :

  


  

  • ffmpeg to produce a mp4 video

  


  • inputs : an image of varying size, an audio wav of X length, a video for the overlay such as particles or dust

  


  • create an mp4 with the image as the final video size, the overlay video light blended into the image using zoom/crop (no stretching of size), length of video is size of audio

  


  • assume the video overlay is bigger than the image as far as height and width