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• Warning in converting YUV color format to RGB in FFmpeg

  9 janvier 2015, par deepak

  I have YUV420P to RGB format conversion algorithm (given below), but this is giving
  following warning while compiling.. Also showing memory leaks in valgrind..

  warning : ‘SwsContext* sws_getContext(int, int, PixelFormat, int, int, PixelFormat, int, SwsFilter*, SwsFilter*, const double*)’ is deprecated (declared at /opt/ffmpeg.h264/include/libswscale/swscale.h:191)

  void YUV2RGB(const IplImage *yuvImg, IplImage *rgbImg) const
  
  {
  
    //code
  
    struct SwsContext *img_convert_ctx = sws_getContext(w, h, PIX_FMT_YUV420P,
  
                                                         w, h, PIX_FMT_BGR24,
  
                                                         SWS_BICUBIC,NULL, NULL, NULL);
  
    //code
  
  
  
  
  
  }

  Can anybody tell how to correct the memory leak and remove the warning

• Node 18 or Node 20 break ffmpeg (in google cloud functions -> ffprobe was killed with signal SIGSEGV)

  10 janvier 2024, par user20206929

  Please see below, the code is working on node js 16, but not when upgrading to node 18 or 20.

  


  const ffmpeg = require("fluent-ffmpeg");

// Following is inside a .https.onRequest Google Cloud function with enough memory

try {
  const duration = new Promise((resolve, reject) => {
  ffmpeg.ffprobe(videoUrl, async (err, metadata) => {
    if (err) {
      if (res.headersSent) {
        console.error("Response already sent");
        return;
      } else {
        console.log("Metadata:", metadata);
        console.log("err: " + err);
        res.status(400).send("Error getting video metadata");
        return;
      }
    }
  const duration = metadata.format.duration;
  console.log("video duration in second: " + duration);
  resolve(duration);
  });
});
  videoDuration = await duration;
} catch (err) {
  console.log(err);
  throw err;
}


  


  When upgrading to node 18/20 (No other change than upgrading node), the error "ffprobe not found" appears.

  


  But setting the path manually using ffmpeg.setFfprobePath(ffprobePath) ;
trigger the error : Error : ffprobe was killed with signal SIGSEGV

  


  So it seem its a permissions issue.

  


  However, I tried a lot of different solutions, none of them made this work.
For instance i tried to download manually the ffprobe from the official website https://ffbinaries.com/downloads. Then manually add it to the code.

  


  I tried to use https://www.npmjs.com/package/@ffprobe-installer/ffprobe or others package like https://www.npmjs.com/package/ffprobe-static

  


  I also tried to download the ffprobe file to the temporary folder of google cloud, and change the permission of this folder.

  


  All of those was doing the same error.

  


  None of what i could think of made any difference.

  


  Please help because i need to update node 16 to 18 or 20 before google remove node 16 on january 31 2024 and for now i don't see a solution.

  


  I also looked for other solution to get this duration from a video file url, but using ffmpeg seem to be the only one that should work out of the box. As it is working on node 16.

  


  Thank you,

  


  UPDATE - 11/26/2023

  


  GCP Functions NodeJS 16 runtime uses Ubuntu 18.04 with FFMpeg installed.
NodeJS 18/20 use Ubuntu 22.04, and Google decided not to include FFMpeg.

  


  https://cloud.google.com/functions/docs/runtime-support#node.js
https://cloud.google.com/functions/docs/reference/system-packages

  


  No workaround or solutions found as of now

  


  UPDATE - 01/10/2024

  


  Google added back ffmpeg to latest version, this is working as before now.

  


• avcodec/pngdec : avoid erroring with sBIT on indexed-color images

  12 juillet 2024, par Leo Izen

  avcodec/pngdec : avoid erroring with sBIT on indexed-color images
  Indexed color images use three colors for sBIT, but the function
  
  ff_png_get_nb_channels returns 1 in this case. We should avoid erroring
  
  out on valid files in this scenario.
  Regression since 84b454935fae2633a8a5dd075e22393f3e8f932f.
  Signed-off-by : Leo Izen <leo.izen@gmail.com>
  
  Reported-by : Ramiro Polla <ramiro.polla@gmail.com>
  
  Reviewed-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavcodec/pngdec.c