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• mp4 not playing in Firefox 35 on Mac, wrong MIME type ?

  5 février 2015, par Andy

  I got two mp4-Videos, both with the same codes (h264 for video and aac for audio), which are returning different mime types on linux :

  $ file --mime-type one.mp4
  
  one.mp4: video/mp4
  
  
  
  $ file --mime-type two.mp4
  
  two.mp4: video/qicktime

  two.mp4 wont play in Firefox 35 on a certain Windows installation and a Mac OS X 10.10 installation, while one.mp4 does.

  I compared the videos with ffmpeg, and the Video-Stream lines are :

  one.mp4 :

  Stream #0:0(und) : Video : h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 735 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)

  Metadata:
  
    handler_name    : VideoHandler

  two.mp4 :

  Stream #0:1(eng) : Video : h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv), 1024x576 [SAR 1:1 DAR 16:9], 1002 kb/s, 25 fps, 25 tbr, 600 tbn, 50 tbc (default)

  Metadata:
  
    creation_time   : 2015-01-23 14:16:08
  
    handler_name    : Apple Alias Data Handler
  
    encoder         : MainConcept H.264

  Can this be a reason for the difference in MIME-Type ?
  And what could I do to change that ?

  Merci beaucoup.

• ffmpeg using exec() output must be realtime

  5 janvier 2015, par gadss

  Hi I am suing windows and linux OS and I am using php for uploading videos, using ffmpeg I can convert videos to other file type. in commandline I can convert and thru php code, but I have problem in displaying the output executed data in my php, it cannot be done in echo this is my code. :

  $webm = 'ffmpeg -i c:\xampp\htdocs\vidcon\video.mp4 -acodec libvorbis -aq 5 -ac 2 -qmax 25 -threads 2 c:\xampp\htdocs\vidcon\new\myvideo.webm';
  
      echo exec ($webm); 

  but when I run it, it doesn’t have any display.. what I want to display is like this... something like a progress in converting the video displaying in php...

  ffmpeg version N-68810-g75cc57f Copyright (c) 2000-2014 the FFmpeg developers
 built on Jan  1 2015 22:02:35 with gcc 4.9.2 (GCC)
 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab
le-zlib
 libavutil      54. 15.100 / 54. 15.100
 libavcodec     56. 19.100 / 56. 19.100
 libavformat    56. 16.102 / 56. 16.102
 libavdevice    56.  3.100 / 56.  3.100
 libavfilter     5.  6.100 /  5.  6.100
 libswscale      3.  1.101 /  3.  1.101
 libswresample   1.  1.100 /  1.  1.100
 libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'c:\xampp\htdocs\vidcon\video.mp4':
 Metadata:
   major_brand     : mp42
   minor_version   : 0
   compatible_brands: mp42mp41isomavc1
   creation_time   : 2014-03-04 20:25:21
 Duration: 00:02:33.09, start: 0.000000, bitrate: 2661 kb/s
   Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709)
, 1280x720 [SAR 1:1 DAR 16:9], 2499 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 t
bc (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Video Handler
     encoder         : AVC Coding
   Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, flt
p, 160 kb/s (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Audio Handler
[libvpx @ 0292c560] v1.3.0
Output #0, webm, to 'c:\xampp\htdocs\vidcon\new\myvideo2.webm':
 Metadata:
   major_brand     : mp42
   minor_version   : 0
   compatible_brands: mp42mp41isomavc1
   encoder         : Lavf56.16.102
   Stream #0:0(und): Video: vp8 (libvpx), yuv420p, 1280x720 [SAR 1:1 DAR 16:9],
q=-1-25, 200 kb/s, 29.97 fps, 1k tbn, 29.97 tbc (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Video Handler
     encoder         : Lavc56.19.100 libvpx
   Stream #0:1(und): Audio: vorbis (libvorbis), 48000 Hz, stereo, fltp (default
)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Audio Handler
     encoder         : Lavc56.19.100 libvorbis
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
 Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
frame=   12 fps=0.0 q=0.0 size=       5kB time=00:00:00.40 bitrate=  97.1kbits/s
frame=   22 fps= 21 q=0.0 size=       5kB time=00:00:00.73 bitrate=  52.9kbits/s
frame=   31 fps= 19 q=0.0 size=     153kB time=00:00:01.03 bitrate=1213.8kbits/s
frame=   41 fps= 19 q=0.0 size=     153kB time=00:00:01.36 bitrate= 917.5kbits/s

  does anyone had an idea about my case ? thanks in advance...

• How to configure Red5-Server 1.0.5 RELEASE and Red5-Client 1.0.5 RELEASE ? [on hold]

  25 juillet 2015, par Gerardo Barzola

  I have a big problem. Recently my friend and i we would try to configure Red5-client 1.0.5 RELEASE and Red5-server 1.0.5 RELEASE.

  We are using :

  • Ubuntu 12.04.5 LTS
  • ruby 2.0.0p643
  • Rails 4.2.1
  • Server Apache/2.2.22 (Ubuntu)
  • Phusion Passenger 5.0.7
  • FFMPEG version git-2015-05-22-ebb08f3

  And the configuration of the red5 server is good.
  But we have problems to configure red5 client. We dont know how to install and configure. We need to configure and webcamera screenshot and webcamera capture video.

  Do you give me and steps that how to install and configure ?

  Thanks a lot,

  Gerardo