ntv2streamplayer.cpp File Reference

Implementation of NTV2StreamPlayer class. More...

#include "ntv2streamplayer.h"
#include "ntv2debug.h"
#include "ntv2devicescanner.h"
#include "ntv2testpatterngen.h"
#include "ajabase/common/timebase.h"
#include "ajabase/system/process.h"
#include "ajaanc/includes/ancillarydata_hdr_sdr.h"
#include "ajaanc/includes/ancillarydata_hdr_hdr10.h"
#include "ajaanc/includes/ancillarydata_hdr_hlg.h"
#include <fstream>

Include dependency graph for ntv2streamplayer.cpp:

Go to the source code of this file.

Macros
#define	NTV2_BUFFER_LOCKING
#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 ULWord	gAncMaxSizeBytes (NTV2_ANCSIZE_MAX)
	The maximum number of bytes of ancillary data that can be transferred for a single field. Each driver instance sets this maximum to the 8K default at startup. It can be changed at runtime, so it's sampled and reset in SetUpVideo. More...
static const uint32_t	gAudMaxSizeBytes (256 *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 min will suffice, with 768 bytes to spare But it could be more efficient for page-aligned (and page-locked) memory to round to 256K. More...
static const bool	BUFFER_PAGE_ALIGNED (true)
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 NTV2StreamPlayer class.

Header file for NTV2StreamPlayer demonstration class.

Copyright

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

Definition in file ntv2streamplayer.cpp.

Macro Definition Documentation

NTV2_BUFFER_LOCKING

#define NTV2_BUFFER_LOCKING

Definition at line 21 of file ntv2streamplayer.cpp.

TCDBG

#define TCDBG

(

_expr_

)

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

Definition at line 28 of file ntv2streamplayer.cpp.

TCFAIL

#define TCFAIL

(

_expr_

)

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

Definition at line 24 of file ntv2streamplayer.cpp.

TCINFO

#define TCINFO

(

_expr_

)

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

Definition at line 27 of file ntv2streamplayer.cpp.

TCNOTE

#define TCNOTE

(

_expr_

)

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

Definition at line 26 of file ntv2streamplayer.cpp.

TCWARN

#define TCWARN

(

_expr_

)

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

Definition at line 25 of file ntv2streamplayer.cpp.

Function Documentation

BUFFER_PAGE_ALIGNED()

static const bool BUFFER_PAGE_ALIGNED ( true  )

static

gAncMaxSizeBytes()

static ULWord gAncMaxSizeBytes ( NTV2_ANCSIZE_MAX  )

static

The maximum number of bytes of ancillary data that can be transferred for a single field. Each driver instance sets this maximum to the 8K default at startup. It can be changed at runtime, so it's sampled and reset in SetUpVideo.

gAudMaxSizeBytes()

static const uint32_t gAudMaxSizeBytes ( 256 *  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 min will suffice, with 768 bytes to spare But it could be more efficient for page-aligned (and page-locked) memory to round to 256K.

gNumFrequencies()

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

static

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 52 of file ntv2streamplayer.cpp.

gFrequencies

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

static

Definition at line 50 of file ntv2streamplayer.cpp.