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• Tube site like thumbnails for videos- hover over and show rotating thumbnails from the movie

  13 novembre 2012, par slycat

  A lot of adult sites (and mainstream tube sites) have thumbnails of videos, and when you hover over them they cycle through a few differnt thumbnails so you know what is in the video.

  Does anyone know what the name for this is called, and if there is a good library for doing this (either something that captures the images (eg with ffmpeg) or some JS library for this ?

• Video tube site on wordpress dedicated server mp4 only streams on android firefox

  9 mai 2015, par Steven Minix

  I have a video tube site that is quite popular and I am having an issue with my mp4 files streaming on android devices. When using Mozilla Firefox on android my videos play and seek perfectly. When using google chrome or default Android browser they do not play at all. I ran one of my videos through mp4box with a few settings and I got it to play on those browser in Android but they break when trying to seek. So at this stage the videos still play fine on Firefox in Android but now even though the video will start playing rather quickly on the other two browsers the videos will not seek properly as seeking will cause the video to break and restart itself. I am in a wordpress installation on a dedicated server.

  server specs:
  
  PHP 5.2.4 or greater
  
  MySQL 5.0 or greater
  
  PHP cURL extension
  
  PHP Zlib extension
  
  Unix-like OS (Windows is not supported)
  
  PHP 5.3, 5.4, 5.5 yes
  
  IonCube Loader 4.6.1 or above yes
  
  Mysql 5.0 or above and its support in PHP yes
  
  FFmpeg 1.0 or above with libx264, libavfilter and AAC codec (libfaac, libfdk_aac or native ffmpeg aac codec) yes
  
  cURL and its support in PHP yes
  
  Apache + mod_rewrite + (MultiViews option disabled) yes, not sure about multi views, please ask how this is done.
  
  Zlib library yes
  
  XML extension yes
  
  GD2 with true type font (required!) yes
  
  Ability to exec PHP from CLI using exec() command yes
  
  PHP register_globals off yes
  
  PHP magic_quotes_gpc off yes
  
  PHP safe_mode off yes
  
  PHP file_uploads on yes
  
  PHP allow_url_fopen on yes

  The files are MP4 with the meta data at the front of the file and playing in the standard wordpress video player(or any html5 based player as I have tried quite a few and all have the same result)

  I had to ask my server admin to install ffmpeg for my streaming is it possible they did not add the right commands ?

  I have no idea what my videos are doing on Apple devices but I assume it is okay since Google Analytics shows a low bounce rate from that devices.

  If any issue is on service side I want to contact them armed with facts. I appreciate your help in this matter.

  EDIT : FFMPEG SERVER CONFIGURATION :
  root@dwhsv160 [ /ffmpeginstaller.8.0]# ffmpeg -version
  ffmpeg version N-71403-g415f1fa-syslint Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
  configuration : —prefix=/usr/local/cpffmpeg —enable-shared —enable-nonfree —enable-gpl —enable-pthreads —enable-libopencore-amrnb —enable-decoder=liba52 —enable-libopencore-amrwb —enable-libfaac —enable-libmp3lame —enable-libtheora —enable-libvorbis —enable-libx264 —enable-libxvid —extra-cflags=-I/usr/local/cpffmpeg/include/ —extra-ldflags=-L/usr/local/cpffmpeg/lib —enable-version3 —extra-version=syslint
  libavutil 54. 22.101 / 54. 22.101
  libavcodec 56. 34.100 / 56. 34.100
  libavformat 56. 30.100 / 56. 30.100
  libavdevice 56. 4.100 / 56. 4.100
  libavfilter 5. 13.101 / 5. 13.101
  libswscale 3. 1.101 / 3. 1.101
  libswresample 1. 1.100 / 1. 1.100
  libpostproc 53. 3.100 / 53. 3.100

  The few things I tried with the mp4 that got them to play but still not seek properly were running them through mp4box with no special settings and simply remuxing them. I also tried a couple special settings like adding a hint track and other things none resulted in the file streaming properly in chrome or default android browser. AGAIN my files stream fine on all desktops and in FIREFOX on android but DO NOT work in chrome on android or default android browser.

• Concatenating two videos with different width and height

  7 mai 2018, par Tahtakafa

  If i try to concatenate two videos it throws an error due to different screen sizes of the videos. I have put a setdat=16/9 parameter like described here for each two video. Then i got the error below. How can i concatenate two videos with different screen sizes ?

  code :

  ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4

  error :

  pi@raspberrypi:/var/www/html/GetVideo $ ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4
  
  ffmpeg version git-2018-05-06-652b857 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
    libavutil      56. 18.100 / 56. 18.100
  
    libavcodec     58. 19.101 / 58. 19.101
  
    libavformat    58. 13.101 / 58. 13.101
  
    libavdevice    58.  4.100 / 58.  4.100
  
    libavfilter     7. 21.100 /  7. 21.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
    libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/reklam/muzikli1.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
    Duration: 00:00:13.35, start: 0.000000, bitrate: 244 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 918x512 [SAR 1:1 DAR 459:256], 110 kb/s, 5 fps, 5 tbr, 5k tbn, 10k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : AVC Coding
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 129 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/tempvideo/sample.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.65.100
  
    Duration: 00:00:25.57, start: 0.000000, bitrate: 1015 kb/s
  
      Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 896 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 113 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  [AVFilterGraph @ 0x2fa9a20] No such filter: ' '
  
  Error initializing complex filters.
  
  Invalid argument