RE: preventing aac playback

Hi John,

 

In that case, you can apply your patch in CAACFileFormat::HXCreateInstance()
function in datatype\aac\fileformat\aacff.cpp. I recommend adding and using
a preference e.g. "DisableAACSupport" 

 

Thanks,

Jyotsana

 

  _____  

From: John Stirling [mailto:[email protected]] 
Sent: Wednesday, September 10, 2008 12:51 AM
To: Jyotsana Rathore
Cc: [email protected]
Subject: Re: [Helix-client-dev] preventing aac playback

 

Hi Jyotsana,

We ideally want a way of doing this dynamically rather than at compile time.

Can anyone point me at the relevant bit of code ?

John


Jyotsana Rathore wrote: 

Hi John,

 

One way to disable the AAC support would be to remove the two macros, by
adding 

project.RemoveDefines('HELIX_FEATURE_AUDIO_CODEC_RAAC')

project.RemoveDefines('HELIX_FEATURE_AUDIO_CODEC_AAC')

in the profile file and rebuilding. Then HXR_NO_RENDERER error will be
returned.

 

Thanks,

Jyotsana

 

  _____  

From: [email protected]
[mailto:[email protected]] On Behalf Of John
Stirling
Sent: Monday, September 08, 2008 1:25 AM
To: [email protected]
Subject: Re: [Helix-client-dev] preventing aac playback

 

Any response to this ?


John Stirling wrote: 

We've been applying this patch in order to selectively disable playback of
AAC content. 

This does prevent AAC content from playing. It currently just starts the
stream, doesn't play anything and sticks there without reporting any errors
to the TLC. We'd like it to behave as if the raac.so plugin didn't exist
(HXR_NO_RENDERER). 

I've tried a few things, but can't seem to find the correct thing to make
this work. Can someone advise on how to do this. 

John 














 
 
 





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? datatype/aac/codec/fixpt/decoder/Makefile
? datatype/aac/codec/fixpt/decoder/Umakefil.upp
? datatype/aac/codec/fixpt/decoder/armv4l-rel
? datatype/aac/codec/fixpt/decoder/rel
? datatype/aac/codec/fixpt/decoder/hxwrap/Makefile
? datatype/aac/codec/fixpt/decoder/hxwrap/Umakefil.upp
? datatype/aac/codec/fixpt/decoder/hxwrap/armv4l-rel
? datatype/aac/codec/fixpt/decoder/hxwrap/raac.exp
? datatype/aac/codec/fixpt/decoder/hxwrap/rel
? datatype/aac/codec/fixpt/decoder/hxwrap/rlink
? datatype/aac/codec/fixpt/decoder/hxwrap/umake_dll.mak
? datatype/aac/codec/fixpt/decoder/hxwrap/umake_dll.upp
? datatype/aac/codec/fixpt/decoder/hxwrap/umake_lib.mak
? datatype/aac/codec/fixpt/decoder/hxwrap/umake_lib.upp
? datatype/aac/fileformat/Makefile
? datatype/aac/fileformat/Umakefil.upp
? datatype/aac/fileformat/aacff.exp
? datatype/aac/fileformat/aacffdll.mak
? datatype/aac/fileformat/aacffdll.upp
? datatype/aac/fileformat/armv4l-rel
? datatype/aac/fileformat/rel
? datatype/aac/fileformat/rlink
? datatype/aac/parser/Makefile
? datatype/aac/parser/Umakefil.upp
? datatype/aac/parser/armv4l-rel
? datatype/aac/parser/rel
? datatype/aac/payload/Makefile
? datatype/aac/payload/Umakefil.upp
? datatype/aac/payload/armv4l-rel
? datatype/aac/payload/rel
Index: datatype/aac/codec/fixpt/decoder/hxwrap/aacdecdll.cpp
===================================================================
RCS file:
/nexus/proj/InternetRadio/cvs/helix_cayenne_20070820/datatype/aac/codec/fixp
t/decoder/hxwrap/aacdecdll.cpp,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 aacdecdll.cpp
--- datatype/aac/codec/fixpt/decoder/hxwrap/aacdecdll.cpp      1 Jul 2008
15:35:05 -0000     1.1.1.1
+++ datatype/aac/codec/fixpt/decoder/hxwrap/aacdecdll.cpp      2 Sep 2008
10:46:15 -0000
@@ -46,6 +46,10 @@
 #include "aacdecdll.h"
 #include "aacconstants.h"
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
 const char* const CAACDec::m_pszCodecName = "RealAudio 10";
 
 CAACDec::CAACDec()
@@ -80,6 +84,15 @@
 //
 STDMETHODIMP CAACDec::QueryInterface(REFIID riid, void** ppvObj)
 {
+  /* This file controls whether we are allowed to use the AAC plugin */
+  #define ENABLE_FILE "/tmp/enable_plugin_aac"
+
+  /* Only allow AAC plugin to be used if there if file
+   * /tmp/enable_plugin_aac exists */    
+  struct stat s;
+  if (stat(ENABLE_FILE, &s) == 0)
+  {
+    printf("HELIX: AAC Plugin Manually Enabled\n");
     if (IsEqualIID(riid, IID_IHXAudioDecoder))
     {
         AddRef();
@@ -92,6 +105,11 @@
         *ppvObj = this;
         return HXR_OK;
     }
+  }
+  else
+  {
+    printf("HELIX: AAC Plugin Manually Disabled\n");
+  }
 
     *ppvObj = NULL;
 
  
 
 
 





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