opus - Apr 2011 - Can I use VBR option to change byte_per_packet dynamically ?

Hi,I have been trying some different sample rate and bitrate combinations to get
a feel for how CELT behaves,too, like Andrew Lentvorski.  But I want to use VBR
option.I want to ask a question about VBR in CELT codec.Can we use VBR option in
CELT ??? "byte_per_packet"  variable in code means constant bit rate,
does not it ?In this code : bytes_per_packet is constant.len = celt_encode(enc,
in_short, frame_size, data, bytes_per_packet);....."len" is equal
"bte_per_packet" evey time.
celt_encoder_ctl(st, CELT_SET_VBR(1);celt_encoder_ctl(st,
CELT_SET_VBR_CONSTRAINT(0);May I write two lines codes to active VBR ?Selami
Tastan
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Hi ,
I want to test  a fixed-point version of CELT on TI C55x DSP. I create a
config.h file that defines all the features that CCS compiler. This is right
???Can anyone only  write any example codes (conf  .h file) for that issue  ?In
my opinion, I can not compile CELT on TI C55 because of memory allocation. Can
anyone help ???

#define CELT_BUILD            1
/* Version extra */#define CELT_EXTRA_VERSION ""
/* Version major */#define CELT_MAJOR_VERSION 0 /* Version micro */#define
CELT_MICRO_VERSION 2
/* Version minor */#define CELT_MINOR_VERSION 5
/* Complete version string */#define CELT_VERSION "0.6.0"
//#define restrict #define INLINE	inline#define inline  inline
#define USE_ALLOCA            1
/* Enable support for TI C55X DSP */#define CONFIG_TI_C55X
/* Comment out the next line for floating-point code */#define FIXED_POINT      
1
#define OPUS_BUILD            1
/* Get rid of the CELT VS compile warnings */
#define CUSTOM_MODES
/* We don't support visibility on Win32 */#define EXPORT

 		 	   		  
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If you don't post the error, there's no way anyone can help you. Also,

 > /* We don't support visibility on Win32 */< /div>

the </div> surely doesn't help.

	Jean-Marc

On 11-04-27 11:24 AM, selami tastan wrote:
> Hi ,
>
> I want to test a fixed-point version of CELT on TI C55x DSP.
> I create a config.h file that defines all the features that CCS
> compiler. This is right ???
> Can anyone only write any example codes (conf .h file) for that issue ?
> In my opinion, I can not compile CELT on TI C55 because of memory
> allocation. Can anyone help ???
>
>
> #define CELT_BUILD 1
>
> /* Version extra */
> #define CELT_EXTRA_VERSION ""
>
> /* Version major */
> #define CELT_MAJOR_VERSION 0
> /* Version micro */
> #define CELT_MICRO_VERSION 2
>
> /* Version minor */
> #define CELT_MINOR_VERSION 5
>
> /* Complete version string */
> #define CELT_VERSION "0.6.0"
>
> //#define restrict
> #define INLINEinline
> #define inline inline
>
> #define USE_ALLOCA 1
>
> /* Enable support for TI C55X DSP */
> #define CONFIG_TI_C55X
>
> /* Comment out the next line for floating-point code */
> #define FIXED_POINT 1
>
> #define OPUS_BUILD 1
>
> /* Get rid of the CELT VS compile warnings */
>
> #define CUSTOM_MODES
>
> /* We don't support visibility on Win32 */< /div>
> #define EXPORT
>
>
>
>
> _______________________________________________
> celt-dev mailing list
> celt-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/celt-dev

I defined USE_ALLOCA  in config.h. Error is in stach_alloc.h.

Error : unresolved symbol _alloca, first referenced in ./libcelt/vq.obj

The code is in stack_alloc.h :
#if defined(VAR_ARRAYS)..........#elif defined(USE_ALLOCA)
#define VARDECL(type, var) type *var
# ifdef WIN32#  define ALLOC(var, size, type) var =
((type*)_alloca(sizeof(type)*(size)))# else#  define ALLOC(var, size, type) var
= ((type*)alloca(sizeof(type)*(size)))# endif
#define SAVE_STACK#define RESTORE_STACK#define ALLOC_STACK
#else..........#endif /*VAR_ARRAYS*/

CELT has been build when I changed  "#  define ALLOC(var, size, type) var =
((type*)alloca(sizeof(type)*(size)))"with          "#  define
ALLOC(var, size, type) var = ((type*)calloc(sizeof(type)*(size),1))"and
then    "#  define ALLOC(var, size, type) var =
((type*)malloc(sizeof(type)*(size)))",but application is broken down. I
think this is because of bad memory allocation.
> Date: Wed, 27 Apr 2011 11:54:27 -0400
> From: jmvalin at jmvalin.ca
> To: selami-tastan at windowslive.com
> CC: celt-dev at xiph.org
> Subject: Re: [CELT-dev] Compile  a fixed-point version of CELT on TI C55
DSP ?
> 
> If you don't post the error, there's no way anyone can help you.
Also,
> 
>  > /* We don't support visibility on Win32 */< /div>
> 
> the </div> surely doesn't help.
> 
> 	Jean-Marc
> 
> On 11-04-27 11:24 AM, selami tastan wrote:
> > Hi ,
> >
> > I want to test a fixed-point version of CELT on TI C55x DSP.
> > I create a config.h file that defines all the features that CCS
> > compiler. This is right ???
> > Can anyone only write any example codes (conf .h file) for that issue
?
> > In my opinion, I can not compile CELT on TI C55 because of memory
> > allocation. Can anyone help ???
> >
> >
> > #define CELT_BUILD 1
> >
> > /* Version extra */
> > #define CELT_EXTRA_VERSION ""
> >
> > /* Version major */
> > #define CELT_MAJOR_VERSION 0
> > /* Version micro */
> > #define CELT_MICRO_VERSION 2
> >
> > /* Version minor */
> > #define CELT_MINOR_VERSION 5
> >
> > /* Complete version string */
> > #define CELT_VERSION "0.6.0"
> >
> > //#define restrict
> > #define INLINEinline
> > #define inline inline
> >
> > #define USE_ALLOCA 1
> >
> > /* Enable support for TI C55X DSP */
> > #define CONFIG_TI_C55X
> >
> > /* Comment out the next line for floating-point code */
> > #define FIXED_POINT 1
> >
> > #define OPUS_BUILD 1
> >
> > /* Get rid of the CELT VS compile warnings */
> >
> > #define CUSTOM_MODES
> >
> > /* We don't support visibility on Win32 */< /div>
> > #define EXPORT
> >
> >
> >
> >
> > _______________________________________________
> > celt-dev mailing list
> > celt-dev at xiph.org
> > http://lists.xiph.org/mailman/listinfo/celt-dev
 		 	   		  
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2011/4/28 selami tastan <selami-tastan at
windowslive.com>:
> I defined?USE_ALLOCA??in config.h. Error is in stach_alloc.h.
>
> Error :?unresolved symbol _alloca, first referenced in ./libcelt/vq.obj
If your system does not support ALLOCA then do not define USE_ALLOCA.