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• ffmpeg tcp error -138 and HTTP error 503 while downloading from https source

  15 juin 2022, par PeterM

  i'm trying to download media (video) files from sharepoint (i have view access), but during the process i get several "Connection to tcp ://xxx.xxxxx.ms:443 failed : Error number -138 occurred" or "HTTP error 503 Service Unavailable" errors

  


  tcp error

  


  HTTP error 503

  


  i get more errors with the following parameters :

  


  ffmpeg -i "https://theURLtoTheManifestYouCopiedHere" -codec copy downloadedVideo.mp4


  


  less errors with :

  


  ffmpeg -re -vsync 1 -i "https://theURLtoTheManifestYouCopiedHere" -codec copy downloadedVideo.mp4


  


  the options suggested in this article didn't help : https://medium.com/intrasonics/robust-continuous-audio-recording-c1948895bb49

  


  the output video is ok, but sound seems to be missing occasionally (a few seconds worth)

  


  ffmpeg version 2022-06-12-git-4d45f5acbd-essentials_build-www.gyan.dev

  


  any advice ?

  


• FFMPEG S3 AWS Laravel Unable to check existence

  18 avril 2023, par Moomen Aldahdouh

  the error in logs laravel file
[2023-04-18 14:11:22] production.ERROR : Unable to check existence for : videos/643ea50862566/643ea50862566_0_300_%05d.ts "exception" :"[object] (League\Flysystem\UnableToCheckFileExistence(code : 0) : Unable to check existence for : videos/643ea50862566/643ea50862566_0_300_%05d.ts at C :\inetpub\mysite\vendor\league\flysystem\src\UnableToCheckExistence.php:19)
[stacktrace]

  


  I'm trying to upload a video on S3 service using Laravel FFMPEG and convert the video to multi-resolution after adding Frames, the error appears on the server, but on localhost not appear, and working very well locally.

  


  `FFMpeg::fromDisk('s3')//uploads
    ->open($this->data["storage_path_full"])
        ->exportForHLS()
        ->addFormat($lowBitrate, function ($media) {
            $media->addFilter('scale=256:144'); 
        })
        ->addFormat($superLowBitrate, function ($media) {
            $media->addFilter('scale=426:240'); 
        })
        ->addFormat($midBitrate, function ($media) {
            $media->addFilter('scale=480:360'); 
        })
        ->addFormat($superMidBitrate, function ($media) {
            $media->addFilter('scale=640:480'); 
        })
        ->addFormat($highBitrate, function ($media) {
            $media->addFilter('scale=1280:720'); 
        })
        ->addFormat($superHighBitrate, function ($media) {
            $media->addFilter('scale=1920:1080'); 
        })
        ->toDisk('s3')
        ->save($this->data["storage_path_video"]);`


  


• FFmpeg av_interleaved_write_frame invalid parameter -22

  21 octobre 2017, par Frank Natoli

  Windows 7 64 bit environment. C# Windows Forms application calling FFmpeg libraries through C++ bridge DLL including avcodec-57.dll, avformat-57.dll, avutil-55.dll, swresample-2.dll and swscale-4.dll to write MPEG-4 file using H.264/MPEG-4 AVC codec. When writing a single MP4 file, never a problem. When writing multiple MP4 files concurrently, via multiple C# threads, occasionally get av_interleaved_write_frame failure -22 which is invalid parameter on one or two but never all files. Needless to say, the parameters never change. Does FFmpeg use temporary files ? Is it possible that there is a fratricidal effect when using the same DLLs to write multiple files concurrently ?
  Edit : placed mutex at entry/exit to my write frame function, see source below, and can no longer reproduce the problem. It would appear something about FFmpeg is not thread-safe.

  extern "C" __declspec(dllexport) int ffmpeg_write_video_frame(FFMPEG_CONTEXT *ffmpegContext, uint8_t *frameBuffer)
  
  {
  
  #ifdef SINGLE_THREAD
  
      WaitForSingleObject(hMutex, INFINITE);
  
  #endif
  
      AVFrame *frame = ffmpeg_get_video_frame(&ffmpegContext->video, frameBuffer);
  
      if (frame == NULL)
  
      {
  
          MessageBox(GetActiveWindow(), "ffmpeg_get_video_frame returned NULL", "ffmpeg_write_video_frame", MB_OK);
  
  #ifdef SINGLE_THREAD
  
          ReleaseMutex(hMutex);
  
  #endif
  
          return(-1);
  
      }
  
  
  
      AVPacket pkt = { 0 };
  
      av_init_packet(&pkt);
  
  
  
      // encode the image
  
      int got_packet = 0;
  
      int result = avcodec_encode_video2(ffmpegContext->video.avCodecContext, &pkt, frame, &got_packet);
  
      if (result < 0)
  
      {
  
          char text[256];
  
          sprintf_s(text, sizeof(text), "avcodec_encode_videos failure=%d", result);
  
          MessageBox(GetActiveWindow(), text, "ffmpeg_write_video_frame", MB_OK);
  
  #ifdef SINGLE_THREAD
  
          ReleaseMutex(hMutex);
  
  #endif
  
          return(result);
  
      }
  
  
  
      // if the encoder has produced an output packet
  
      if (got_packet)
  
      {
  
          result = ffmpeg_write_frame(ffmpegContext->avFormatContext, &ffmpegContext->video.avCodecContext->time_base, ffmpegContext->video.avStream, &pkt);
  
          if (result < 0)
  
          {
  
              char text[256];
  
              sprintf_s(text, sizeof(text), "ffmpeg_write_frame failure=%d", result);
  
              MessageBox(GetActiveWindow(), text, "ffmpeg_write_video_frame", MB_OK);
  
  #ifdef SINGLE_THREAD
  
              ReleaseMutex(hMutex);
  
  #endif
  
              return(result);
  
          }
  
      }
  
  #ifdef SINGLE_THREAD
  
      ReleaseMutex(hMutex);
  
  #endif
  
      return (0);
  
  }
  
  
  
  extern "C" int ffmpeg_write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)
  
  {
  
      /* rescale output packet timestamp values from codec to stream timebase */
  
      av_packet_rescale_ts(pkt, *time_base, st->time_base);
  
      pkt->stream_index = st->index;
  
  
  
      /* Write the compressed frame to the media file. */
  
  #if 0
  
      log_packet(fmt_ctx, pkt);
  
  #endif
  
      int result = av_interleaved_write_frame(fmt_ctx, pkt);
  
      if (result < 0)
  
      {
  
          char text[256];
  
          sprintf_s(text, sizeof(text), "av_interleaved_write_frame failure=%d", result);
  
          MessageBox(GetActiveWindow(), text, "ffmpeg_write_frame", MB_OK);
  
      }
  
      return(result);
  
  }