sox_format_handler_t Struct Reference

Client API: Handler structure defined by each format. More...

#include <sox_ng.h>

Public Attributes
unsigned	sox_lib_version_code
	Checked on load; must be 1st in struct.
char const *	description
	short description of format
char const *const *	names
	null-terminated array of filename extensions that are handled by this format
unsigned int	flags
	File flags (SOX_FILE_* values).
sox_format_handler_startread	startread
	called to initialize reader (decoder)
sox_format_handler_read	read
	called to read (decode) a block of samples
sox_format_handler_stopread	stopread
	called to close reader (decoder); may be null if no closing necessary
sox_format_handler_startwrite	startwrite
	called to initialize writer (encoder)
sox_format_handler_write	write
	called to write (encode) a block of samples
sox_format_handler_stopwrite	stopwrite
	called to close writer (decoder); may be null if no closing necessary
sox_format_handler_seek	seek
	called to reposition reader; may be null if not supported
unsigned const *	write_formats
	Array of values indicating the encodings and precisions supported for writing (encoding).
sox_rate_t const *	write_rates
	Array of sample rates (samples per second) supported for writing (encoding).
size_t	priv_size
	SoX will automatically allocate a buffer in which the handler can store data.

Detailed Description

Client API: Handler structure defined by each format.

Member Data Documentation

priv_size

size_t priv_size

SoX will automatically allocate a buffer in which the handler can store data.

Specify the size of the buffer needed here. Usually this will be sizeof(your_struct). The buffer will be allocated and zeroed before the call to startread/startwrite. The buffer will be freed after the call to stopread/stopwrite. The buffer will be provided via format.priv in each call to the handler.

write_formats

unsigned const* write_formats

Array of values indicating the encodings and precisions supported for writing (encoding).

Precisions specified with default precision first. Encoding, precision, precision, ..., 0, repeat. End with one more 0. Example: unsigned const * formats = { SOX_ENCODING_SIGN2, 16, 24, 0, // Support SIGN2 at 16 and 24 bits, default to 16 bits. SOX_ENCODING_UNSIGNED, 8, 0, // Support UNSIGNED at 8 bits, default to 8 bits. 0 // No more supported encodings. };

write_rates

sox_rate_t const* write_rates

Array of sample rates (samples per second) supported for writing (encoding).

NULL if all (or almost all) rates are supported. End with 0.

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

• src/sox_ng.h