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• I am trying to add draggable text view on video

  24 septembre 2021, par Naveed

  I am trying to add draggable textview on video but unable to get
cordinates of textview according to the video I am using ffmpeg for
adding text to video.

  


  val xPos = width?.let {
           (binding.edtXPos.text.toString().toFloat().times(it)).div(100)
      }
val yPos = height?.let {
          (binding.edtYPos.text.toString().toFloat().times(it)).div(100)
     }
Log.e(TAG, "addTextProcess: x=$xPos and y=$yPos", )


  


  I entering percentage of x and y axis to put but I want to get position of dragable textview cordinated according to video pixels.

  


• FFmpeg is slowing down a video in output and I cannot figure out why

  23 août 2020, par S M

  I'm making a python program that uses FFmpeg for I/O. Right now the problem I'm getting is an input video is 3s but output is 9s. Both line up if I stretch them out manually in premiere pro but I want to fix this with ffmpeg. I know my array is 223 frames and I only give FFmpeg the argument "-r 60", but when the command is run and the video is made, it repeats every frame about 3 times, making the resulting video much longer. I can't just add command to make it play video 3 times faster because its not exactly 3 (I don't know what the exact multiplier for difference is). Is there anything I can do to make it not repeat frames ?

  


  Edit : I'm using skvideo.vwrite so I'm not really sure what's happening with FFmpeg but this is the code I have :
  
skvideo.io.vwrite("out.mp4", arr, outputdict = '-r' :'60')
  
Where arr has shape (854, 256, 256, 3)

  


• ffmpeg issue when decode YUV4:4:4 stream

  26 octobre 2022, par Enes Tezcan

  There is an Encoder that streaming other monitors screen to my pc with rtsp protocol. Everything is ok when streaming format YUV422p or lower, but when I configurate it as YUV444P getting error such as bellow :

  


  


  ffmpeg -i rtsp://10.1.10.14:3049/S1 out.mp4

  


  


  [h264 @ 0000020ad88e9500] separate color planes are not supported

Last message repeated 2 times

[h264 @ 0000020ad88e9500] Error decoding the extradata        
[h264 @ 0000020ad88e9500] separate color planes are not supported 

Last message repeated 2 times

[h264 @ 0000020ad88e9500] non-existing PPS 2 referenced           
Last message repeated 1 times
[h264 @ 0000020ad88e9500] decode_slice_header error           
[h264 @ 0000020ad88e9500] non-existing PPS 2 referenced       
[h264 @ 0000020ad88e9500] decode_slice_header error           
[h264 @ 0000020ad88e9500] no frame!
[h264 @ 0000020ad88e9500] non-existing PPS 2 referenced           
Last message repeated 1 times
[h264 @ 0000020ad88e9500] decode_slice_header error           
[h264 @ 0000020ad88e9500] non-existing PPS 2 referenced       
[h264 @ 0000020ad88e9500] decode_slice_header error           
[h264 @ 0000020ad88e9500] no frame! 


  


  I tried
ffprobe -show_format to see streams' details but it gives same error.

  


  I'm waiting for your precious helps.

  


  Best Regards

  


  about YUV

  


  similar but was can't solved issues