apps/camogm2/camogm_wav.c File Reference

#include <endian.h>
#include <byteswap.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include "camogm_wav.h"
#include "camogm.h"
#include <alsa/asoundlib.h>

Include dependency graph for camogm_wav.c:

Go to the source code of this file.

Data Structures
struct	WaveHeader
struct	WaveFmtBody
struct	WaveChunkHeader
Defines
#define	COMPOSE_ID(a, b, c, d)   ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
#define	LE_SHORT(v)   (v)
#define	LE_INT(v)   (v)
#define	BE_SHORT(v)   bswap_16(v)
#define	BE_INT(v)   bswap_32(v)
#define	WAV_RIFF   COMPOSE_ID('R','I','F','F')
#define	WAV_WAVE   COMPOSE_ID('W','A','V','E')
#define	WAV_FMT   COMPOSE_ID('f','m','t',' ')
#define	WAV_DATA   COMPOSE_ID('d','a','t','a')
#define	WAV_PCM_CODE   1
Functions
static int	begin_wave (int fd, size_t cnt)
static void	end_wave (int fd)
void	wave_begin (const char *fname)
void	wave_push (void *buf, int len)
void	wave_end ()
Variables
long long	fdcount = 0
int	wave_fd

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Define Documentation

#define BE_INT

(

v

)

bswap_32(v)

Definition at line 20 of file camogm_wav.c.

#define BE_SHORT

(

v

)

bswap_16(v)

Definition at line 19 of file camogm_wav.c.

#define COMPOSE_ID	(	a,
		b,
		c,
		d		)	((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))

Definition at line 16 of file camogm_wav.c.

#define LE_INT

(

v

)

(v)

Definition at line 18 of file camogm_wav.c.

Referenced by begin_wave(), and end_wave().

#define LE_SHORT

(

v

)

(v)

Definition at line 17 of file camogm_wav.c.

Referenced by begin_wave().

#define WAV_DATA   COMPOSE_ID('d','a','t','a')

Definition at line 34 of file camogm_wav.c.

Referenced by begin_wave(), and end_wave().

#define WAV_FMT   COMPOSE_ID('f','m','t',' ')

Definition at line 33 of file camogm_wav.c.

Referenced by begin_wave().

#define WAV_PCM_CODE   1

Definition at line 35 of file camogm_wav.c.

Referenced by begin_wave().

#define WAV_RIFF   COMPOSE_ID('R','I','F','F')

Definition at line 31 of file camogm_wav.c.

Referenced by begin_wave().

#define WAV_WAVE   COMPOSE_ID('W','A','V','E')

Definition at line 32 of file camogm_wav.c.

Referenced by begin_wave().

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Function Documentation

static int begin_wave	(	int	fd,
		size_t	cnt
	)			[static]

Definition at line 64 of file camogm_wav.c.

References camogm_state::audio_channels, camogm_state::audio_format, camogm_state::audio_rate, f, LE_INT, LE_SHORT, WaveChunkHeader::length, WaveHeader::length, WaveHeader::magic, state, WaveChunkHeader::type, WaveHeader::type, WAV_DATA, WAV_FMT, WAV_PCM_CODE, WAV_RIFF, WAV_WAVE, and write.

Referenced by wave_begin().

static void end_wave

(

int

fd

)

[static]

Definition at line 135 of file camogm_wav.c.

References fdcount, LE_INT, WaveChunkHeader::length, SEEK_SET, WaveChunkHeader::type, WAV_DATA, and write.

Referenced by wave_end().

void wave_begin

(

const char *

fname

)

Definition at line 157 of file camogm_wav.c.

References begin_wave(), stderr, and wave_fd.

Referenced by audio_start().

void wave_end

(

)

Definition at line 167 of file camogm_wav.c.

References end_wave(), and wave_fd.

Referenced by audio_end().

void wave_push	(	void *	buf,
		int	len
	)

Definition at line 163 of file camogm_wav.c.

References fdcount, wave_fd, and write.

Referenced by audio_process().

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Variable Documentation

long long fdcount = 0

Definition at line 61 of file camogm_wav.c.

Referenced by end_wave(), and wave_push().

int wave_fd

Definition at line 155 of file camogm_wav.c.

Referenced by wave_begin(), wave_end(), and wave_push().

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