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• Save RTSP stream continuously into multi mp4 files with specific length (10 minutes) in ffmpeg

  31 juillet 2019, par ThanhPhan

  I’m recording RTSP stream from camera into .mp4 files using ffmpeg and I want to roll it into multi files with 10 minutes long every videos.

  Currently I have a solution for this : I’m setting a time length ’00:10:00’, after it finished then I will restart below command with new process.
  Sample :

  ffmpeg -rtsp_transport tcp -i  -acodec copy -vcodec  copy  -t 00:10:00 D:\video_test.mp4

  But this solution makes camera becoming unstable, RTSP stream uasually corrupted with this error :

  rtsp://10.96.41.14:9024/user=xxxx_password=xxx_channel=1_stream=0.sdp?real_stream: Operation not permitted

  I want to find better solution to keep connection to RTSP stream continuously (not create new process with a -t flag).

  Does anyone have better idea to keep recording stream continuously ?
  Thanks

• how use pipe instead of save method in fluent-ffmpeg ?

  27 juin 2019, par Mohsen Rahnamaei

  I gonna use fluent ffmpeg to write something on video
  I use this cod

  var proc = ffmpeg(req.filePath). videoFilters(
  
    {
  
      filter: 'drawtext',
  
      options: {
  
        text: 'VERY LONG TEXT VERY VERY VERY VERY LOL!!!',
  
        fontsize: 36,
  
        fontcolor: 'white',
  
        x: '(main_w/2-text_w/2)',
  
        y: '(text_h/2)+15',
  
        shadowcolor: 'black',
  
        shadowx: 2,
  
        shadowy: 2
  
      }}
  
  
  
  )
  
  // use the 'flashvideo' preset (located in /lib/presets/flashvideo.js)
  
  .on('end', function() {
  
    console.log('file has been converted succesfully');
  
  })
  
  .on('error', function(err) {
  
    console.log('an error happened: ' + err.message);
  
  }).save('/home/gheidar/Desktop/ffmpeg_test/rt.ts');

  and everything is correct
  but I want to export this output to stream for the response of the request
  means that I want to use pipe() instead of save method

  something like this :

  var proc = ffmpeg(req.filePath). videoFilters(
  
    {
  
      filter: 'drawtext',
  
      options: {
  
        text: 'VERY LONG TEXT VERY VERY VERY VERY LOL!!!',
  
        fontsize: 36,
  
        fontcolor: 'white',
  
        x: '(main_w/2-text_w/2)',
  
        y: '(text_h/2)+15',
  
        shadowcolor: 'black',
  
        shadowx: 2,
  
        shadowy: 2
  
      }}
  
  
  
  )
  
  // use the 'flashvideo' preset (located in /lib/presets/flashvideo.js)
  
  .on('end', function() {
  
    console.log('file has been converted succesfully');
  
  })
  
  .on('error', function(err) {
  
    console.log('an error happened: ' + err.message);
  
  }).pipe(res)

  its just change in the last line
  and I get this error :

  an error happened: ffmpeg exited with code 1: pipe:1: Invalid argument

  how can export this ffmpeg command to stream response ????

• How to save video recording(webcam) and screen recording to directly Mp4 in windows ?

  10 juillet 2019, par SaddamBinSyed

  I have an applicaiton which running as a windows service which is responsible for Recording the video/audio and screen capture as well.

  now I am using DirectX lib and Aforge dll to save recorded file to AVI format which is not supported by HTML 5 so I am then converting the same to mp4 using NVideoConverter dll.

  now I am facing high CPU utilization (30% -recording service) FFmpeg (30% conversion task).

  So I wanting a solution/method to directly record as an MP4 format to get rid of conversion part as well as CPU utilization.

  I couldn’t use FFmpeg directly to the record since when user logoff/signout the current recording will get corrupted.

  So How can I record as an Mp4 in windows 7 and 10 ?

  also, I came across that win10 default camera application is saving the recording directly as Mp4 file which is playing well in both IE and chrome.

  so it means there is a way in windows 10.

  If anyone implemented/knows about the same please advise me.

  help highly appreciated.

  thanks.