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• Save video from rtsp and play in exoplayer simultaneously [closed]

  25 janvier 2024, par Julian Peña Gallego

  I am trying to receive a live stream via RTSP from an IP camera in Android Kotlin, I am recording the video to a local file with ffmpegkit but I must additionally view the live stream.

  


  When I record the live stream with ffmpeg without playing the stream through exoplayer it works fine, but when both processes are running there is packet loss in the video recording or in the exoplayer.

  


  Then I tried to get exoplayer to play the video that ffmpeg was recording, but it gave me an error since the file has not been closed yet.

  


  Could you provide me with a solution ? I have found on the internet that it is possible with server sockets but they do not indicate how to do it.

  


• ffmpeg returns "Invalid data found when processing input" when creating RTSP stream from H.264

  22 mars 2019, par Ahm23

  I’m trying to create an RTSP stream from an H.264 source on Ubuntu using ffmpeg, however, I keep getting the error prompt "Invalid data found when processing input". I’m working on an AWS DeepLens.

  There seem to be some solutions on the internet for similar problems but none of them seem to be working.

  Executed Command :

  ffmpeg -loglevel error -re -f concat -safe 0 -i /opt/awscam/out/ch1_out.h264 -c:v copy -flags +global_header -rtsp_transport tcp -f rtsp "RTSP"

  Where "RTSP" is the rtsp path/url.

• MP4 moof fragment headers

  23 juillet 2019, par Ariana

  I have a MP4 parser software that get’s a fragmented .mp4 video, parses the MOOV and fragment headers and streams it. I have generated a .mp4 file myself using FFMPEG and MP4Box/bento4, but the software has problems processing it.

  ffmpeg -i input.mp4 -g 25 -c:v libx264 -c:a copy out1.mp4
  
  
  
  mp4fragment out1.mp4 --fragment-duration 1000 --track 'video' output.mp4

  Using the MP4 Explorer software, I noticed in my generated .mp4 file, for all moof.traf.trun, sample duration is set to 0, but in the Track Fragment Header box, it sets the default_sample_duration to 512. While in the another .mp4 file which works fine, there is no default_sample_duration field, but each individual sample has a duration of size 512. Looks like this might cause the problem. The right figure shows the working mp4, and the left one is my generated mp4.

  Is this an update in the newer versions of FFMPEG (or MP4Box or bento4) ? Is there any ways to force setting the sample duration in samples ?

  My .mp4 file

  The working .mp4 file