roc::audio::PcmMapper Class Reference

PCM format mapper. Convert between PCM formats. More...

#include <pcm_mapper.h>

Inheritance diagram for roc::audio::PcmMapper:

Collaboration diagram for roc::audio::PcmMapper:

Public Member Functions
	PcmMapper (PcmFormat input_fmt, PcmFormat output_fmt)
	Initialize. More...
PcmFormat	input_format () const
	Get input format. More...
PcmFormat	output_format () const
	Get output format. More...
size_t	input_sample_count (size_t input_bytes) const
	Get number of input samples per channel for given number of bytes. More...
size_t	output_sample_count (size_t output_bytes) const
	Get number of input samples per channel for given number of bytes. More...
size_t	input_byte_count (size_t input_samples) const
	Get number of input bytes for given number of samples per channel. More...
size_t	output_byte_count (size_t output_samples) const
	Get number of output bytes for given number of samples per channel. More...
size_t	input_bit_count (size_t input_samples) const
	Get number of input bits for given number of samples per channel. More...
size_t	output_bit_count (size_t output_samples) const
	Get number of output bits for given number of samples per channel. More...
size_t	map (const void *in_data, size_t in_byte_size, size_t &in_bit_off, void *out_data, size_t out_byte_size, size_t &out_bit_off, size_t n_samples)
	Map samples from input to output format. More...

Detailed Description

PCM format mapper. Convert between PCM formats.

Definition at line 24 of file pcm_mapper.h.

Constructor & Destructor Documentation

PcmMapper()

roc::audio::PcmMapper::PcmMapper	(	PcmFormat	input_fmt,
		PcmFormat	output_fmt
	)

Initialize.

Precondition

input_fmt and output_fmt should be PCM formats.

Member Function Documentation

input_bit_count()

size_t roc::audio::PcmMapper::input_bit_count

(

size_t

input_samples

)

const

Get number of input bits for given number of samples per channel.

input_byte_count()

size_t roc::audio::PcmMapper::input_byte_count

(

size_t

input_samples

)

const

Get number of input bytes for given number of samples per channel.

input_format()

PcmFormat roc::audio::PcmMapper::input_format

(

)

const

Get input format.

input_sample_count()

size_t roc::audio::PcmMapper::input_sample_count

(

size_t

input_bytes

)

const

Get number of input samples per channel for given number of bytes.

map()

size_t roc::audio::PcmMapper::map	(	const void *	in_data,
		size_t	in_byte_size,
		size_t &	in_bit_off,
		void *	out_data,
		size_t	out_byte_size,
		size_t &	out_bit_off,
		size_t	n_samples
	)

Map samples from input to output format.

Remarks

in_data is a pointer to input buffer in_byte_size is size of input buffer in bytes in_bit_off is an offset in input buffer in bits out_data is a pointer to output buffer out_byte_size is size of output buffer in bytes out_bit_off is an offset in output buffer in bits n_samples is number of input and output samples for all channels

Returns

number of samples actually mapped, which may be truncated if input or output buffer is smaller than requested

Note

updates in_bit_off and out_bit_off

output_bit_count()

size_t roc::audio::PcmMapper::output_bit_count

(

size_t

output_samples

)

const

Get number of output bits for given number of samples per channel.

output_byte_count()

size_t roc::audio::PcmMapper::output_byte_count

(

size_t

output_samples

)

const

Get number of output bytes for given number of samples per channel.

output_format()

PcmFormat roc::audio::PcmMapper::output_format

(

)

const

Get output format.

output_sample_count()

size_t roc::audio::PcmMapper::output_sample_count

(

size_t

output_bytes

)

const

Get number of input samples per channel for given number of bytes.

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

• roc_audio/pcm_mapper.h