Newest 'ffmpeg' Questions - Stack Overflow

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• How to use ffplay to play a rtp stream without sdp ?

  8 octobre 2019, par Morris

  Is there any command line options that I can use to tell ffplay the video stream format of the RTP stream?

  With a simple SDP file like bellow, I can play the stream very well.

  c=IN IP4 0.0.0.0
  m=video 9170 RTP/AVP 96
  a=rtpmap:96 H264/90000
  

• Generating a short preview of a .webm movie

  8 octobre 2019, par urbciech

  I would like to improve my website so I would like to replace the existing .jpg thumbnails with a live preview like in youtube.After hovering over the movie, a short video showing what's going on in the movie is shown. Do you have any idea or tip on how I can achieve this effect with ffmpeg?

• av_interleaved_write_frame hang forver when network broken

  8 octobre 2019, par DJI_lover

  I am using ffmpeg to stream video to rtmp server.But when network broken,my streaming program seem to hang on in av_interleaved_write_frame() and there is no error output.if I recover the network within seconds,the program resume to work within seconds.But if I recover the network after 20 seconds or even longer，my program freeze forever with no error.I want to interupt the av_interleaved_write_frame() when it hang up for a period of time and restart my whole streaming program.Could someone tell me how to do ,thanks!!

• ASP.NET Core Video Editor : Editing and Preview Changes

  8 octobre 2019, par Tabby

  I am making a video editor which takes a video mute its audio on some specific time and after that it uses user selected audios which could be more than one. User defines the time for each audio file on the video through some drag and dropping and then trimming.

  1. How would i preview the changes that i am making?
  2. Is there any similar video editor or sample code available in .Net?
  3. I am opting ffmpeg for editing video. Is there any other better library/tool which i might be missing?

• How to run ffmpeg command in ios ?

  8 octobre 2019, par virus

  We can run ffmpeg command in Android but I am trying to do same thing in iOS but I didn't get a straight way for the same. Any help would be really appreciated.

  Basically I would like to do following task using ffmpeg library

  1. Add overlay image to video and export
  2. Scale existing video and export
  3. Add text layer to video and export
  4. Add gif to video and export

  command ex :

  ffmpeg -i input.avi -b:v 64k -bufsize 64k output.avi