Recherche avancée

Sur d’autres sites (6668)

• ffmpeg open remote video with high latency while gstreamer not

  30 octobre 2014, par madcc

  I use MJPEG-Streamer to send my remote camera video via wifi. I use such command to see video :

  gstreamer :

  gst-launch -v souphttpsrc location= "http://192.168.1.1:8080/?action=stream&type=.mjpg" do-timestamp=true is_live=true ! multipartdemux ! jpegdec ! autovideosink

  ffmpeg :

   ffplay "http://192.168.1.1:8080/?action=stream&type=.mjpg"

  or :

   ffplay "http://192.168.1.1:8080/?action=stream&type=.mjpg" -fflags nobuffer

  however the ffplay has a high latency up to 3 10 seconds in my test, while the gstreamer
  show almost no latency.

  when using localhost MJPEG-Streamer, both two methods show low latency. so what’s the reason ? and how to decrease the latency ?

  more detail :

  I want to use opencv to capture a remote camera,my opencv compile with ffmpeg support but without gstreamer support ( I tried but failed,the cmake seemed to not find my gstreamer,I don’t know which gstreamer library to install in opensuse 13.1), I can get the video in opencv but with high latency,so I compared ffmpeg with gstreamer,the result is as above.so how to decrease the latency ? I read this link,but still no solution.

  thank you.

• I use ffmpeg dinamically to edit a local hosted video to be streamed on iPhone over 3G [on hold]

  3 octobre 2014, par Luchian Chivoiu

  I use ffmpeg dinamically to edit a local hosted video to be streamed on iPhone over 3G .

  I use this line :
  "ffmpeg -i C :\file1.mp4 -s 640x480 -r 30000/1001 -b:a 56k -bt 40k -b:v 50k -maxrate 10M -bufsize 10M -coder 0 -bf 0 -refs 1 -ar 48000 -ab 52k C :\file2.mp4" and it doesn’t work to open on iPhone the transformed file called "file2.mp4".
  I use Web Api and C# to call the ffmpeg locally and the resulted file opens on the browser but still doesn’t want to stream to an iPhone over 3G only if it’s over WiFi.

  Here Apple explains the process but I still didn’t get it work .

  https://developer.apple.com/library/safari/documentation/AppleApplications/Reference/SafariWebContent/CreatingVideoforSafarioniPhone/CreatingVideoforSafarioniPhone.html

  One example that can’t be played on IPhone is this one : http://www.starlety.com/Videos/8ada5277-424a-e411-b2e5-00ff91d7f3dd.mp4

• bindProcessToNetwork does not work for live555's rtspclient

  19 février 2020, par apan

  When my phone is connected to the WiFi camera, the Android system will recognise the WiFi network as an unavailable network, and then automatically switch to mobile data, so I use bindProcessToNetwork to bind the network to the WiFi connection. When I use ffmpeg’s rtsp module to connect to the WiFi camera, bindProcessToNetwork works well, but when I port live555 to the android platform, bindProcessToNetwork does not work when using rtspclient, it looks like rtspclient is still using mobile data connection instead of WiFi connection. How should I solve this problem ?