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• how do we check similarity between hash values of two audio files in python ?

  14 avril 2022, par Reshma Walhekar

  About the data :
we have 2 video files which are same and audio of these files is also same but they differ in quality.
that is one is in 128kbps and 320kbps respectively.

  


  we have used ffmpeg to extract the audio from video, and generated the hash values for both the audio file using the code : ffmpeg -loglevel error -i 320kbps.wav -map 0 -f hash -
the output was : SHA256=4c77a4a73f9fa99ee219f0019e99a367c4ab72242623f10d1dc35d12f3be726c
similarly we did it for another audio file to which we have to compare ,
C :\FFMPEG>ffmpeg -loglevel error -i 128kbps.wav -map 0 -f hash -
SHA256=f8ca7622da40473d375765e1d4337bdf035441bbd01187b69e4d059514b2d69a

  


  Now we know that these audio files and hash values are different but we want to know how much different/similar they are actually , for eg : like some distance in a-b is say 3

  


  can someone help with this ?

  


• Crop layout for Videos using touch for a Video Editor like Video Show or Filmora Go in android studio [closed]

  26 août 2020, par Rayhan Khan

  I am new to the android studio (Java) and video editing application. I am developing a video editor in android studio with FFMpeg Library.

  


  I want to create a crop layout with a rectangle layer on top of it to measure the details like :

  


  

crop video width : 900
crop video height : 500
left distance (x value) : 190
top distance (y value) : 110

                                    1280
****************************************************************************
*FULL VIDEO                           |                                    *
*                                    110                                   *
*                                     |                                    *
*            **************************************************            *
*            *                       900                      *            *
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*----190-----*                     CONTENT                500 *----190-----* 720
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*            *                                                *            *
*            **************************************************            *
*                                     |                                    *
*                                    110                                   *
*                                     |                                    *
****************************************************************************


  


  Please help. Thank you.

  


  Screenshot 1 :

  


  

  


  Screenshot 2 :

  


  

  


• How to sync two videos of different length

  26 août 2020, par Huhngut

  I got two video files. The first one has good resolution but the wrong language and the second one has bad resolution but the wished language. Both of the files got a few seconds of black screen at the beginning but these seconds are different. I got a lot of these files and the intro seems to be always of a different length so I can't say always remove 2 seconds of audio and 3 seconds of video and then merge them.

  


  So I am wondering if there's some tool out there which s able to sync these files automatically.

  


  But it won't be enough to simply search for two identical images and calculate the time distance because the resolution is different (might its possible to scale the better one down for comparison) but even in this case, the program has to evaluate if the image has enough detail for comparison so it won't compare 2 black images. It would be good if the program scales the images to 50x50 to save time while comparing

  


  Does someone know any tool or has suggestions might even some python/java code for developing one. Any search suggestions or name ideas