libsndfile-samples

Samples for reading & writing audio data which use libsndfile.

Overview

This is the samples which use libsndfile.
These samples are used basic functions in the libsndfile programming interface.
I wish it makes the programmer understood how to use libsndfile.
Issues, Pull requests, Stars and Forks are welcome!

Sample lists

libsndfile programming interface is described in this link.

No.	File name	Description	Scope function
1	sample01_readinfo.c	Print sfinfo members from sound file.	SNDFILE* sf_open(const char *path, int mode, SF_INFO *sfinfo);
2	sample02_formatcheck.c	Check sf_format_check() function.	int sf_format_check(const SF_INFO *info);
3	sample03_seek.c	Print the amplitude of seeked data.	sf_count_t sf_seek(SNDFILE *sndfile, sf_count_t frames, int whence);
4	sample04_errorcheck.c	Check whether sndfile struct is valid or NOT.	int sf_error(SNDFILE *sndfile);
5	sample05_readshort.c	Read the audio data as short data type.	sf_count_t sf_read_short(SNDFILE *sndfile, short *ptr, sf_count_t items);
6	sample06_readfshort.c	Read the audio data as short data type.	sf_count_t sf_readf_short(SNDFILE *sndfile, short *ptr, sf_count_t frames);
7	sample07_readint.c	Read the audio data as int data type.	sf_count_t sf_read_int(SNDFILE *sndfile, int *ptr, sf_count_t items);
8	sample08_readfint.c	Read the audio data as int data type.	sf_count_t sf_readf_int(SNDFILE *sndfile, int *ptr, sf_count_t frames);
9	sample09_readfloat.c	Read the audio data as float data type.	sf_count_t sf_read_float(SNDFILE *sndfile, float *ptr, sf_count_t items);
10	sample10_readffloat.c	Read the audio data as float data type.	sf_count_t sf_readf_float(SNDFILE *sndfile, float *ptr, sf_count_t frames);
11	sample11_readdouble.c	Read the audio data as double data type.	sf_count_t sf_read_double(SNDFILE *sndfile, double *ptr, sf_count_t items);
12	sample12_readfdouble.c	Read the audio data as double data type.	sf_count_t sf_readf_double(SNDFILE *sndfile, double *ptr, sf_count_t frames);
13	sample13_writeshort.c	Write audio data from short data type.	sf_count_t sf_write_short(SNDFILE *sndfile, short *ptr, sf_count_t items);
14	sample14_writefshort.c	Write audio data from short data type.	sf_count_t sf_writef_short(SNDFILE *sndfile, short *ptr, sf_count_t frames);
15	sample15_writeint.c	Write audio data from int data type.	sf_count_t sf_write_int(SNDFILE *sndfile, int *ptr, sf_count_t items);
16	sample16_writefint.c	Write audio data from int data type.	sf_count_t sf_writef_int(SNDFILE *sndfile, int *ptr, sf_count_t frames);
17	sample17_writefloat.c	Write audio data from float data type.	sf_count_t sf_write_float(SNDFILE *sndfile, float *ptr, sf_count_t items);
18	sample18_writeffloat.c	Write audio data from float data type.	sf_count_t sf_writef_float(SNDFILE *sndfile, float *ptr, sf_count_t frames);
19	sample19_writedouble.c	Write audio data from double data type.	sf_count_t sf_write_double(SNDFILE *sndfile, double *ptr, sf_count_t items);
20	sample20_writefdouble.c	Write audio data from double data type.	sf_count_t sf_writef_double(SNDFILE *sndfile, double *ptr, sf_count_t frames);
21	sample21_setstring.c	Add basic string metadata to the written audio file.	int sf_set_string(SNDFILE *sndfile, int str_type, const char *str);
22	sample22_getstring.c	Get basic string metadata to the written audio file.	const char* sf_get_string(SNDFILE *sndfile, int str_type);
23	sample23_versionstring.c	Get libsndfile version string.	const char *sf_version_string(void);
24	sample24_byterate.c	Return the current byterate at this point in the file.	int sf_current_byterate(SNDFILE *sndfile);
25	sample25_setchunk.c	Set the specified chunk info.	int sf_set_chunk(SNDFILE *sndfile, const SF_CHUNK_INFO *chunk_info);
26	sample26_getchunkiterator.c	Get an iterator for all chunks matching chunk_info.	SF_CHUNK_ITERATOR *sf_get_chunk_iterator(SNDFILE *sndfile, const SF_CHUNK_INFO *chunk_info);
27	sample27_getchunksize.c	Get the size of the specified chunk.	int sf_get_chunk_size(const SF_CHUNK_ITERATOR *it, SF_CHUNK_INFO *chunk_info);
28	sample28_getchunkdata.c	Get the specified chunk data.	int sf_get_chunk_data(const SF_CHUNK_ITERATOR *it, SF_CHUNK_INFO *chunk_info);
29	sample29_nextchunkiterator.c	Iterate through chunks by incrementing the iterator.	SF_CHUNK_ITERATOR *sf_next_chunk_iterator (SF_CHUNK_ITERATOR *iterator);
30	sample30_errornumber.c	Convert error number to string.	const char *sf_error_number(int errnum);

Audio files

This is the list of audio files used with the above samples.

No.	File name	Format	Channel	Sample rate(Hz)	Bits	Description
1	Fox.wav	WAV	2	44100	16	The file embedded string chunk as "Test" chunk.
2	Getstring.flac	FLAC	2	44100	16	The file embedded some metadata.
3	TestSound_44100_16.wav	WAV	2	44100	16	The file with 1000Hz Test tone.
4	TestSound_48000_8_Mono.wav	WAV	1	48000	8	The file with 1000Hz Test tone.
5	TestSound_96000_24_Mono.wav	WAV	1	96000	24	The file with 1000Hz Test tone.
6	TestSound_96000_24_Stereo.flac	FLAC	2	96000	24	The "FLAC" file with 1000Hz Test tone