Recherche avancée

Sur d’autres sites (12711)

• Sony Launches Less Useful Z5U

  18 novembre 2009

  Sony today announced the NXCAM, an AVCHD-based "professional" camera which bears a striking resemblance to the EX1 and Z5U.

  You get 1080p exmor CMOS chips (presumably 1/3" ?) and records AVCHD to the highly popular (sarcasm) Memory Stick media.

  Pricing hasn’t been announced, but presumably it’ll be in the $4000 range like the Z5U. I’ll be curious to see how this shakes out in the market.

• How to use ffmpeg Library in electron？

  24 avril 2022, par MrL

  I use ffmpeg in electronic, but uwp can't use the command line, so I want to use ffmpeg library instead, and install "FFI NaPi". After testing, it can call the library, but I don't know C language and how to call ffmpeg library. Can anyone help me ?

  


  This is my test of "ffi napi". It can really succeed：

  


  c++ code :

  


  extern "C" __declspec(dllexport) int add(int a, int b) {

    return 20;
};


  


  electron js :

  


   var ffi = require('ffi-napi');
    var libm = ffi.Library('Dll1.dll', {
      'add': [ 'int', [ 'int', 'int' ] ],
    });
    
    var rel = libm.add(1,2); // 20
    console.error('rel:',rel);


  


  This is the download website of ffmpeg library：
https://github.com/wang-bin/avbuild

  


  [enter image description here][1]
[enter image description here][2]
[enter image description here][3]
[enter image description here][4]


  [1]: https://i.stack.imgur.com/HTMhK.png
  [2]: https://i.stack.imgur.com/hxsw4.png
  [3]: https://i.stack.imgur.com/5mDLx.png
  [4]: https://i.stack.imgur.com/HAjPE.png


  


  I have no programming knowledge of C + + and do not know how to call these libraries. I just want to edit a video, for example :

  


  ffmpeg -i a.mp4 -c -copy b.mp4


  


• Prevent libavformat (FFmpeg) from adding "ENCODER" tag to output / help stripping the tags

  9 juillet 2021, par Wyatt Ward

  I made a bash script that transfers audio or video metadata from one file to another, regardless of media container format, via FFMpeg. My problem is that FFMpeg consistently adds a 'ENCODER' tag.

  



  Example :

  



  Before running through FFMpeg :

  



   File : track01.cdda.flac

  



    Metadata:
    ALBUM           : Wish You Were Here
    ARTIST          : Pink Floyd
    COPYRIGHT       : 1975 Harvest Records
    DATE            : 1975
    GENRE           : Experimental Rock
    TITLE           : Shine On You Crazy Diamond
    track           : 1


  



  After running through FFMpeg :

  



   File : track01-iphone-alac.m4a

  



    Metadata:
    ALBUM=Wish You Were Here
    ARTIST=Pink Floyd
    COPYRIGHT=1975 Harvest Records
    DATE=1975
    GENRE=Experimental Rock
    TITLE=Shine On You Crazy Diamond
    track=1
    ENCODER=Lavf55.12.100


  



  So really, I want to either force FFMpeg to not add the 'ENCODER' tag, or I want to strip that tag off afterwards. Is there a way to do this ? I really don't want to spend hours trying to compile FFMpeg again on my Pentium 4 HT - the only working computer I have at the moment. I'd prefer not to have to use another program unless it's related enough to FFMpeg or MPlayer/Mencoder that I won't have to install anything new if I have those installed.