SequenceHeader Class Reference

#include <pespacket.h>

List of all members.

Public Member Functions
uint	width (void) const
uint	height (void) const
uint	aspectNum (void) const
uint	fpsNum (void) const
float	fps (void) const
float	aspect (bool mpeg1) const
	Returns the screen aspect ratio.
Private Member Functions
	SequenceHeader ()
	~SequenceHeader ()
Private Attributes
unsigned char	data [11]
Static Private Attributes
static const float	mpeg1_aspect [16]
static const float	mpeg2_aspect [16]
	The negative values are screen aspect ratios, while the positive ones are pixel aspect ratios.
static const float	mpeg2_fps [16]

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Detailed Description

Definition at line 288 of file pespacket.h.

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Constructor & Destructor Documentation

SequenceHeader::SequenceHeader

(

)

[inline, private]

Definition at line 299 of file pespacket.h.

SequenceHeader::~SequenceHeader

(

)

[inline, private]

Definition at line 300 of file pespacket.h.

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Member Function Documentation

uint SequenceHeader::width

(

void

)

const [inline]

Definition at line 291 of file pespacket.h.

Referenced by aspect(), and AvFormatDecoder::MpegPreProcessPkt().

uint SequenceHeader::height

(

void

)

const [inline]

Definition at line 292 of file pespacket.h.

Referenced by aspect(), and AvFormatDecoder::MpegPreProcessPkt().

uint SequenceHeader::aspectNum

(

void

)

const [inline]

Definition at line 293 of file pespacket.h.

Referenced by aspect().

uint SequenceHeader::fpsNum

(

void

)

const [inline]

Definition at line 294 of file pespacket.h.

Referenced by fps().

float SequenceHeader::fps

(

void

)

const [inline]

Definition at line 295 of file pespacket.h.

Referenced by AvFormatDecoder::MpegPreProcessPkt().

float SequenceHeader::aspect

(

bool

mpeg1

)

const

Returns the screen aspect ratio.

Definition at line 194 of file pespacket.cpp.

Referenced by AvFormatDecoder::MpegPreProcessPkt().

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Member Data Documentation

unsigned char SequenceHeader::data[11] [private]

Definition at line 302 of file pespacket.h.

Referenced by aspectNum(), fpsNum(), height(), and width().

const float SequenceHeader::mpeg1_aspect [static, private]

Initial value:

{
    0.0000f,       1.0000f,       0.6735f,       0.7031f,
    0.7615f,       0.8055f,       0.8437f,       0.8935f,
    0.9157f,       0.9815f,       1.0255f,       1.0695f,
    1.0950f,       1.1575f,       1.2015f,       0.0000f,
}

Definition at line 303 of file pespacket.h.

Referenced by aspect().

const float SequenceHeader::mpeg2_aspect [static, private]

Initial value:

{
    0.0000f,       1.0000f,       -3.0/4.0,     -9.0/16.0,
    -1.0/2.21,     0.0000f,       0.0000f,       0.0000f,
    0.0000f,       0.0000f,       0.0000f,       0.0000f,
    0.0000f,       0.0000f,       0.0000f,       0.0000f,
}

The negative values are screen aspect ratios, while the positive ones are pixel aspect ratios.

Definition at line 304 of file pespacket.h.

Referenced by aspect().

const float SequenceHeader::mpeg2_fps [static, private]

Initial value:

{
    0.0f,          24000/1001.0f, 24.0f,        25.0f,
    30000/1001.0f, 30.0f,         50.0f,        60000/1001.0f,
    60.0f,         1.0f,          1.0f,         1.0f,
    1.0f,          1.0f,          1.0f,         1.0f,
}

Definition at line 305 of file pespacket.h.

Referenced by fps().

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The documentation for this class was generated from the following files:

• pespacket.h
• pespacket.cpp