Recherche avancée

Sur d’autres sites (9772)

• Video thumbnail rotated output for videos uploaded from IOS application

  21 février 2018, par Rubin Porwal

  I am working on implementation of REST API of mobile application implemented into both IOS and Android platforms.Mobile Application encapsulates a feature of video upload and it needs to be published into feeds .
  REST API of video upload features contains implementation of video upload feature along with feature of thumbnail generation of video using ffmpeg tool.
  Thumbnail is generated properly from API for videos uploaded from Android Application but for videos uploaded from IOS application output is in form of rotated thumbnail image. I searched for it but still struggling for an appropriate solution compatible with both platforms

  Below mentioned are detailed specifications of ffmpeg installed into my server

  ffmpeg version 2.4.3-1ubuntu1 trusty6 Copyright (c) 2000-2014 the
  FFmpeg developers built on Nov 22 2014 17:07:19 with gcc 4.8 (Ubuntu
  4.8.2-19ubuntu1) configuration : —prefix=/usr —extra-version=’1ubuntu1 trusty6’ —build-suffix=-ffmpeg —toolchain=hardened —extra-cflags= —extra-cxxflags= —libdir=/usr/lib/x86_64-linux-gnu —shlibdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —enable-gpl —enable-shared —disable-stripping —enable-avresample —enable-avisynth —enable-fontconfig —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-opengl —enable-x11grab —enable-libxvid —enable-libx265 —enable-libdc1394 —enable-libiec61883 —enable-libzvbi —enable-libzmq —enable-frei0r —enable-libx264 —enable-libsoxr —enable-openal —enable-libopencv libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56.
  1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libavresample 2.
  1. 0 / 2. 1. 0 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53.
  0.100

• Converting and Compressing a Video with FFmpeg

  29 avril 2019, par Supercoder54551

  I’m using FFmpeg to convert and compress a video. Everything converts/compresses fine, but my video has no sound when I try to play it on a mobile device. But it has sound when I play it on a desktop. I don’t know if this has to do with the codec that I am using, I don’t know. Can someone help me ? I appreciate it. Thank you.

  The format that I am using in FFmpeg :

  $request->video->move(public_path('/app'), $filename);
  
          $name_file=uniqid().'intro_video.mp4';
  
       $ffp=FFMpeg::open($filename)
  
  ->addFilter(function ($filters) {
  
      $filters->resize(new \FFMpeg\Coordinate\Dimension(640, 480));
  
  })
  
  ->export()
  
  ->toDisk('s3')
  
  ->inFormat(new \FFMpeg\Format\Audio\Aac)
  
  ->save($name_file);

• Python OpenCV real-time blurring with saving to output

  10 janvier 2024, par Oleg Novosad

  I have a live video stream via RTSP from my IP camera. I want to blur faces on that stream and output for mobile usage (HLS, H.264, etc). All this should ideally happen in real-time — with the minimum of resources consumed. I plan to deploy this later to some cloud, so the less money I spend on resources the better.

  


  Currently I have a working solution like so :

  


  

  • I capture video using OpenCV

  


  • I update every frame with Gaussian Blur and save it to some folder

  


  • After some amount of frames I create MP4 / AVI / whatever video and make it accessible via HTTP URL

  


  • All of it is running on Django for now

  


  


  I know I am doing something wrong, can someone suggest a better solution ?