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• Splitting audio by vocal / voice

  1er octobre 2020, par ML85

  I am working with audio file using webrtcvad and pydub. The split of any fragment is by silence of the sentence.
Is there any way by which the split can be done at each vocal (after each spoken word) ?
If librosa/ffmpeg/pydub has any feature like this, can split is possible at each vocal ? but after split, I need start and end time of the vocal exactly what that vocal part has positioned in the original file.
One simple solution or way to split by ffmpeg is also defined by :

  


  https://gist.github.com/vadimkantorov/00bf4fbe4323360722e3d2220cc2915e

  


  but this is also splitting by silence, and with each padding number or the frame size, the split is different. I am trying split by vocal.

  


• Getting disordered frame (see image) when using FFMPEG and OpenCV inside docker

  29 juin 2023, par Alvaro Alfaro

  I am consuming an UDP video streaming (from my windows host), when I use the FFMPEG and OpenCV in windows to get the frames, everything is working as expected (completed frames and right colours).

  


  Once I introduce the solution to a docker container, the frames that I am getting are similar to this one :

  


  disorder images parts in the frame

  


  Also, as in the video we have data stream and video, we are using this ffmepg command to receive raw video frames in another process :

  


  process = sp.Popen(shlex.split('ffmpeg -hide_banner '                        # Set loglevel to quiet for disabling the prints ot stderr
                                   '-i "udp://localhost:13437?pkt_size=1348" '                                        # Input stream
                                   '-map 0:v:0 -c:v rawvideo -pix_fmt bgr24 -f:v rawvideo pipe:2  ' # rawvideo format is mapped to stderr pipe (raw video codec with bgr24 pixel format)
                                   #'-map 0:d -c copy -copy_unknown -f:d data pipe:1 '            # Copy the data without ddecoding.
                                   '-report'),                                                   # Create a log file (because we can't the statuses that are usually printed to stderr).
                                    stdout=sp.PIPE, stderr=sp.PIPE)


  


  I have tested by reducing the packet size but the problem persists.

  


  Thanks in advance !

  


• lavc/rscc : Support pal8 in rscc.

  19 septembre 2016, par Carl Eugen Hoyos

  lavc/rscc : Support pal8 in rscc.
  Fixes the colours of the sample for ticket #5611.
  

  • [DH] libavcodec/rscc.c
  • [DH] libavcodec/version.h