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• Microsoft SmoothStreaming video on Apache ?

  2 juin 2014, par earizon

  I created what I consider to be a valid smooth streaming output using ffmpeg with the smooth streaming muxer and also alternatively through the ismindex utility (included in ffmpeg sources).

  I’m trying to use an standard web server like Apache instead of IIS and its S.S. extensions. The output is segmented content (each fragment is split to is own file) so theoretically this is possible. Now comes my first problem where I’m stuck.

  How can I test the result using for example a Window Phone 8 ?. I tried to open the index.ism url from I.Explorer, but the extension ism and the mime-type (application/vnd.ms-sstr+xml) is not recognized and I.Explorer just dump the xml instead of opening the media player.
  I was waiting for a similar behaviour to that of Android/iOS when the (HLS) index.m3u8 URL is clicked. In this case the browser/OS detects the extension and open the player.

  Thanks in advance for any help, hint or link !

• ffplay playing videos very slow and choppy

  2 juin 2014, par Pavan K

  I am trying to compile ffplay from sources to run on pcduino running ubuntu

  If I install ffplay via sudo apt-get install ffmpeg the videos play perfectly But I tried to compile ffplay from the sources using the guide here ffmpeg compilation the videos play terribly slowand look very very choppy.

  Do I have to use some specific flags for compilation. I just would like a bare bones video player ffplay. I do not want to encode or do any heavy computation with the binary.

  ffplay verison is

      ./ffplay -version    
  
  ffplay version git-2013-06-14-d891d35
  
  built on Jun  2 2014 14:15:57 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
  configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
  
  libavutil      52. 35.101 / 52. 35.101
  
  libavcodec     55. 16.100 / 55. 16.100
  
  libavformat    55.  8.102 / 55.  8.102
  
  libavdevice    55.  2.100 / 55.  2.100
  
  libavfilter     3. 77.101 /  3. 77.101
  
  libswscale      2.  3.100 /  2.  3.100
  
  libswresample   0. 17.102 /  0. 17.102
  
  libpostproc    52.  3.100 / 52.  3.100

  And this is from apt-get

  ffplay -version 
  
  avplay version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2003-2013 the Libav developers
  
    built on Feb  6 2014 21:09:10 with gcc 4.6.3
  
  avplay 0.8.10-4:0.8.10-0ubuntu0.12.04.1
  
  libavutil    51. 22. 2 / 51. 22. 2
  
  libavcodec   53. 35. 0 / 53. 35. 0
  
  libavformat  53. 21. 1 / 53. 21. 1
  
  libavdevice  53.  2. 0 / 53.  2. 0
  
  libavfilter   2. 15. 0 /  2. 15. 0
  
  libswscale    2.  1. 0 /  2.  1. 0
  
  libpostproc  52.  0. 0 / 52.  0. 0

  i have the following error when I play with the built ffplay

  ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred  0B f=0/0
  
  ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred  0B f=0/0

• ffplay compilation with extra flags

  21 mai 2014, par Pavan K

  I would like to compile ffplay with an external header which is written in c++

  ffplay.c

  #include "oscpkt.hh"
  
  //rest of the file

  oscpkt.hh

  #include <cstring>
  
  //rest of the file
  
  </cstring>

  The error is

  CC  ffplay.o
  
  In file included from ffplay.c:59:0:
  
  oscpkt.hh:69:19: fatal error: cstring: No such file or directory
  
  compilation terminated.
  
  make: *** [ffplay.o] Error 1

  I think I have to provide -lstdc++ externally to pickup the cstring library

  Could anyone tell me how to add this in the makefile of ffmpeg compilation. There are no flags that I could add to, maybe I am missing something.

  You can find the sources here :

  makefile
  oscpkt.hh