ntv2dolbyplayer.cpp File Reference

Implementation of NTV2DolbyPlayer class. More...

#include "ntv2dolbyplayer.h"
#include "ntv2utils.h"
#include "ntv2formatdescriptor.h"
#include "ntv2debug.h"
#include "ntv2testpatterngen.h"
#include "ntv2devicescanner.h"
#include "ajabase/system/debug.h"
#include "ajabase/system/systemtime.h"
#include "ajabase/system/process.h"
#include "ajabase/common/timebase.h"

Include dependency graph for ntv2dolbyplayer.cpp:

Go to the source code of this file.

Macros
#define	TCFAIL(_expr_)   AJA_sERROR (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)
#define	TCWARN(_expr_)   AJA_sWARNING(AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)
#define	TCNOTE(_expr_)   AJA_sNOTICE (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)
#define	TCINFO(_expr_)   AJA_sINFO (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)
#define	TCDBG(_expr_)   AJA_sDEBUG (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Functions
static const uint32_t	AUDIOBYTES_MAX_48K (201 *1024)
	The maximum number of bytes of 48KHz audio that can be transferred for a single frame. Worst case, assuming 16 channels of audio (max), 4 bytes per sample, and 67 msec per frame (assuming the lowest possible frame rate of 14.98 fps)... 48,000 samples per second requires 3,204 samples x 4 bytes/sample x 16 = 205,056 bytes 201K will suffice, with 768 bytes to spare. More...
static const uint32_t	AUDIOBYTES_MAX_192K (824 *1024)
	The maximum number of bytes of 192KHz audio that can be transferred for a single frame. Worst case, assuming 8 channels of audio (max), 4 bytes per sample, and 67 msec per frame (assuming the lowest possible frame rate of 14.98 fps)... 96,000 samples per second requires 12,864 samples x 4 bytes/sample x 16 = 823,296 bytes 824K will suffice. More...
static const ULWord	kAppSignature (((((uint32_t)( 'D'))<< 24)|(((uint32_t)( 'E'))<< 16)|(((uint32_t)( 'M'))<< 8)|(((uint32_t)( 'O'))<< 0)))
	Used when reserving the AJA device, this specifies the application signature. More...
static const ULWord	gNumFrequencies (sizeof(gFrequencies)/sizeof(double))

Variables
static const double	gFrequencies [] = {250.0, 500.0, 1000.0, 2000.0}
static const double	gAmplitudes []

Detailed Description

Implementation of NTV2DolbyPlayer class.

Copyright

(C) 2013-2022 AJA Video Systems, Inc. All rights reserved.

Definition in file ntv2dolbyplayer.cpp.

Macro Definition Documentation

TCDBG

#define TCDBG

(

_expr_

)

AJA_sDEBUG (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Definition at line 26 of file ntv2dolbyplayer.cpp.

TCFAIL

#define TCFAIL

(

_expr_

)

AJA_sERROR (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Definition at line 22 of file ntv2dolbyplayer.cpp.

TCINFO

#define TCINFO

(

_expr_

)

AJA_sINFO (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Definition at line 25 of file ntv2dolbyplayer.cpp.

TCNOTE

#define TCNOTE

(

_expr_

)

AJA_sNOTICE (AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Definition at line 24 of file ntv2dolbyplayer.cpp.

TCWARN

#define TCWARN

(

_expr_

)

AJA_sWARNING(AJA_DebugUnit_TimecodeGeneric, AJAFUNC << ": " << _expr_)

Definition at line 23 of file ntv2dolbyplayer.cpp.

Function Documentation

AUDIOBYTES_MAX_192K()

static const uint32_t AUDIOBYTES_MAX_192K ( 824 *  1024 )

static

The maximum number of bytes of 192KHz audio that can be transferred for a single frame. Worst case, assuming 8 channels of audio (max), 4 bytes per sample, and 67 msec per frame (assuming the lowest possible frame rate of 14.98 fps)... 96,000 samples per second requires 12,864 samples x 4 bytes/sample x 16 = 823,296 bytes 824K will suffice.

AUDIOBYTES_MAX_48K()

static const uint32_t AUDIOBYTES_MAX_48K ( 201 *  1024 )

static

The maximum number of bytes of 48KHz audio that can be transferred for a single frame. Worst case, assuming 16 channels of audio (max), 4 bytes per sample, and 67 msec per frame (assuming the lowest possible frame rate of 14.98 fps)... 48,000 samples per second requires 3,204 samples x 4 bytes/sample x 16 = 205,056 bytes 201K will suffice, with 768 bytes to spare.

gNumFrequencies()

static const ULWord gNumFrequencies ( sizeof(gFrequencies)/sizeof(double)  )

static

kAppSignature()

static const ULWord kAppSignature ( ((((uint32_t)('D'))<< 24)|(((uint32_t)('E'))<< 16)|(((uint32_t)('M'))<< 8)|(((uint32_t)('O'))<< 0))  )

static

Used when reserving the AJA device, this specifies the application signature.

Variable Documentation

gAmplitudes

const double gAmplitudes[]

static

Initial value:

=   {   0.10, 0.15,     0.20, 0.25,     0.30, 0.35,     0.40, 0.45,     0.50, 0.55,     0.60, 0.65,     0.70, 0.75,     0.80, 0.85,
                                            0.85, 0.80,     0.75, 0.70,     0.65, 0.60,     0.55, 0.50,     0.45, 0.40,     0.35, 0.30,     0.25, 0.20,     0.15, 0.10}

Definition at line 526 of file ntv2dolbyplayer.cpp.

gFrequencies

const double gFrequencies[] = {250.0, 500.0, 1000.0, 2000.0}

static

Definition at line 524 of file ntv2dolbyplayer.cpp.