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• Can I make calls to APIs such as youtube-dl and ffmpeg from a chrome-app ?

  8 janvier 2015, par ErickR

  First of all, I haven’t started the implementation of the system I’m about to describe, as I didn’t want to commit on implementing something I did not know if was possible.

  So, what I’m trying to achieve is to build a chrome-app to download the audio from certain websites (e.g. youtube and soundcloud) using youtube-dl, post process it using ffmpeg and then upload it to a cloud service via some api. The reason I want to do it via a chrome-app is because I could do all the work on the client side (no need for servers) and I’d have the ability to insert javascript into the pages using content scripts, which would make the app pretty simple to use (I could create buttons such as ’download song’ and stuff like that).

  Although I have already read the documentation explaining the NaCl Technical Overview and some of the Application Structure, I still am not sure as to whether I would be able to make these calls via some C/C++ module or if I would get denied due to security reasons.

  To summarize : considering that the user has the needed dependencies in his system (youtube-dl, python, ffmpeg and etc.), is it possible to make calls to third party APIs such as the ones described before via a chrome-app using NaCl ?

  Thank you all in advance,

• lavc : remove libschroedinger encoding and decoding wrappers

  28 mai 2017, par Rostislav Pehlivanov

  lavc : remove libschroedinger encoding and decoding wrappers
  The library has stopped being developed and Debian has removed it
  
  from its repositories citing security issues.
  
  The native Dirac decoder supports everything the library has and basic
  
  encoding support is still provided via the native vc2 (Dirac Pro, intra
  
  only version of Dirac) encoder. Hence, there's no reason to still support
  
  linking to the library and potentially leading users into security issues.
  

  • [DH] Changelog
  • [DH] MAINTAINERS
  • [DH] configure
  • [DH] doc/general.texi
  • [DH] doc/platform.texi
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/allcodecs.c
  • [DH] libavcodec/libschroedinger.c
  • [DH] libavcodec/libschroedinger.h
  • [DH] libavcodec/libschroedingerdec.c
  • [DH] libavcodec/libschroedingerenc.c

• php exec() works on some calls, not other similar ones

  15 mai 2013, par Kyle

  I have a php script that cuts up video. Here are three exec() commands - two execute properly while one does not :

  Works :

  sudo ffmpeg -i /home/vidserver/videos/$filename.mp4 -ss $ctime -t 00:00:06 -acodec copy -vcodec copy -y /var/vidcache/test$x.mp4

  Works :

  sudo ffmpeg -i /var/vidcache/test$x.mp4 -qscale:v 1
  /var/vidcache/i$x.mpg

  Does not work :

  sudo ffmpeg -i
  concat :"i0.mpg|i1.mpg"
  -qscale:v 1 /var/vidcache/output.mpg

  /var/vidcache has 777 privs and www-data is in the sudoers file with NOPASSWD (yes, I know - this is just for debug purposes before I lock down security).

  When I run the last command from a php script from the command line by itself, it DOES work. (Running as www-data or root.) But when I try to put it in a function called from a web page, it does NOT work.

  Any ideas ?