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get_audio.c File Reference

#include <config.h>
#include <assert.h>
#include <stdio.h>
#include <math.h>
#include <sys/stat.h>
#include "lame.h"
#include "main.h"
#include "get_audio.h"
#include "portableio.h"
#include "timestatus.h"
#include "lametime.h"
#include "console.h"

Include dependency graph for get_audio.c:

Go to the source code of this file.

Defines

#define strchr   index

#define strrchr   rindex

#define memcpy(d, s, n)   bcopy ((s), (d), (n))

#define memmove(d, s, n)   bcopy ((s), (d), (n))

#define MAX_U_32_NUM   0xFFFFFFFF

#define GA_URS_IFLOOP(ga_urs_bps)

#define IFF_ID_FORM   0x464f524d

#define IFF_ID_AIFF   0x41494646

#define IFF_ID_AIFC   0x41494643

#define IFF_ID_COMM   0x434f4d4d

#define IFF_ID_SSND   0x53534e44

#define IFF_ID_MPEG   0x4d504547

#define IFF_ID_NONE   0x4e4f4e45 /* "NONE" */

#define IFF_ID_2CBE   0x74776f73 /* "twos" */

#define IFF_ID_2CLE   0x736f7774 /* "sowt" */

#define WAV_ID_RIFF   0x52494646

#define WAV_ID_WAVE   0x57415645

#define WAV_ID_FMT   0x666d7420

#define WAV_ID_DATA   0x64617461

Functions

char * strchr ()

char ** strrchr ()

int lame_decode_initfile (FILE *fd, mp3data_struct *mp3data, int *enc_delay, int *enc_padding)

int lame_decode_fromfile (FILE *fd, short int pcm_l[], short int pcm_r[], mp3data_struct *mp3data)

static int read_samples_pcm (FILE *musicin, int sample_buffer[2304], int frame_size, int samples_to_read)

static int read_samples_mp3 (lame_global_flags *const gfp, FILE *const musicin, short int mpg123pcm[2][1152], int num_chan)

void CloseSndFile (sound_file_format input, FILE *musicin)

FILE * OpenSndFile (lame_global_flags *gfp, char *, int *enc_delay, int *enc_padding)

static int fskip (FILE *fp, long offset, int whence)

FILE * init_outfile (char *outPath, int decode)

void init_infile (lame_global_flags *gfp, char *inPath, int *enc_delay, int *enc_padding)

void close_infile (void)

void SwapBytesInWords (short *ptr, int short_words)

static int get_audio_common (lame_global_flags *const gfp, int buffer[2][1152], short buffer16[2][1152])

int get_audio (lame_global_flags *const gfp, int buffer[2][1152])

int get_audio16 (lame_global_flags *const gfp, short buffer[2][1152])

int WriteWaveHeader (FILE *const fp, const int pcmbytes, const int freq, const int channels, const int bits)

static int unpack_read_samples (const int samples_to_read, const int bytes_per_sample, const int swap_order, int *sample_buffer, FILE *pcm_in)

static int parse_wave_header (lame_global_flags *gfp, FILE *sf)

int aiff_check2 (IFF_AIFF *const pcm_aiff_data)

static int parse_aiff_header (lame_global_flags *gfp, FILE *sf)

void parse_file_header (lame_global_flags *gfp, FILE *sf)

Variables

int count_samples_carefully

int pcmbitwidth

int pcmswapbytes = 0

unsigned int num_samples_read

FILE * musicin

Define Documentation

#define GA_URS_IFLOOP ( ga_urs_bps )

Value:

if( bytes_per_sample == ga_urs_bps ) \
        for( i = samples_read * bytes_per_sample; (i -= bytes_per_sample) >=0;)

Referenced by unpack_read_samples().

#define IFF_ID_2CBE 0x74776f73 /* "twos" */

Definition at line 1021 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_2CLE 0x736f7774 /* "sowt" */

Definition at line 1022 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_AIFC 0x41494643

Definition at line 1015 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_AIFF 0x41494646

Definition at line 1014 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_COMM 0x434f4d4d

Definition at line 1016 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_FORM 0x464f524d

Definition at line 1013 of file get_audio.c.

Referenced by parse_file_header().

#define IFF_ID_MPEG 0x4d504547

Definition at line 1018 of file get_audio.c.

#define IFF_ID_NONE 0x4e4f4e45 /* "NONE" */

Definition at line 1020 of file get_audio.c.

Referenced by parse_aiff_header().

#define IFF_ID_SSND 0x53534e44

Definition at line 1017 of file get_audio.c.

Referenced by aiff_check2(), and parse_aiff_header().

#define MAX_U_32_NUM 0xFFFFFFFF

Definition at line 53 of file get_audio.c.

#define memcpy	(	d,
		s,
		n	)	bcopy ((s), (d), (n))

Definition at line 47 of file get_audio.c.

#define memmove	(	d,
		s,
		n	)	bcopy ((s), (d), (n))

Definition at line 48 of file get_audio.c.

#define strchr index

Definition at line 42 of file get_audio.c.

#define strrchr rindex

Definition at line 43 of file get_audio.c.

#define WAV_ID_DATA 0x64617461

Definition at line 1027 of file get_audio.c.

Referenced by parse_wave_header().

#define WAV_ID_FMT 0x666d7420

Definition at line 1026 of file get_audio.c.

Referenced by parse_wave_header().

#define WAV_ID_RIFF 0x52494646

Definition at line 1024 of file get_audio.c.

Referenced by parse_file_header().

#define WAV_ID_WAVE 0x57415645

Definition at line 1025 of file get_audio.c.

Referenced by parse_wave_header().

Function Documentation

int aiff_check2 ( IFF_AIFF *const pcm_aiff_data )

Definition at line 1137 of file get_audio.c.

References IFF_AIFF_struct::blkAlgn, blockAlign_struct::blockSize, error_printf(), IFF_ID_SSND, IFF_AIFF_struct::numChannels, IFF_AIFF_struct::sampleSize, IFF_AIFF_struct::sampleType, and silent.

Referenced by parse_aiff_header().

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void close_infile ( void )

Definition at line 226 of file get_audio.c.

References CloseSndFile(), input_format, and musicin.

Referenced by main().

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void CloseSndFile	(	sound_file_format	input,
		FILE *	musicin
	)

Definition at line 1344 of file get_audio.c.

References error_printf(), and silent.

Referenced by close_infile().

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static int fskip	(	FILE *	fp,
		long	offset,
		int	whence
	)			`[static]`

Definition at line 108 of file get_audio.c.

References error_printf(), Min, and silent.

Referenced by parse_aiff_header(), and parse_wave_header().

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int get_audio	(	lame_global_flags *const	gfp,
		int	buffer[2][1152]
	)

Definition at line 300 of file get_audio.c.

References get_audio_common(), and gfp.

Referenced by lame_encoder(), and main().

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int get_audio16	(	lame_global_flags *const	gfp,
		short	buffer[2][1152]
	)

Definition at line 310 of file get_audio.c.

References get_audio_common(), and gfp.

Referenced by gtkmakeframe(), and lame_decoder().

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static int get_audio_common	(	lame_global_flags *const	gfp,
		int	buffer[2][1152],
		short	buffer16[2][1152]
	)			`[static]`

Definition at line 325 of file get_audio.c.

References count_samples_carefully, gfp, i, input_format, is_mpeg_file_format(), lame_get_framesize(), lame_get_num_channels(), lame_get_num_samples(), MAX_U_32_NUM, Min, musicin, num_samples_read, read_samples_mp3(), and read_samples_pcm().

Referenced by get_audio(), and get_audio16().

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void init_infile	(	lame_global_flags *	gfp,
		char *	inPath,
		int *	enc_delay,
		int *	enc_padding
	)

Definition at line 215 of file get_audio.c.

References count_samples_carefully, gfp, in_bitwidth, musicin, num_samples_read, OpenSndFile(), pcmbitwidth, pcmswapbytes, and swapbytes.

Referenced by init_files(), and main().

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FILE* init_outfile	(	char *	outPath,
		int	decode
	)

Definition at line 178 of file get_audio.c.

References lame_set_stream_binary_mode().

Referenced by init_files().

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int lame_decode_fromfile	(	FILE *	fd,
		short int	pcm_l[],
		short int	pcm_r[],
		mp3data_struct *	mp3data
	)

Referenced by read_samples_mp3().

int lame_decode_initfile	(	FILE *	fd,
		mp3data_struct *	mp3data,
		int *	enc_delay,
		int *	enc_padding
	)

Referenced by OpenSndFile().

FILE * OpenSndFile	(	lame_global_flags *	gfp,
		char *	,
		int *	enc_delay,
		int *	enc_padding
	)

Definition at line 1359 of file get_audio.c.

References mp3data_struct::bitrate, console_printf(), error_printf(), gfp, input_format, is_mpeg_file_format(), lame_decode_initfile(), lame_get_file_size(), lame_get_in_samplerate(), lame_get_num_channels(), lame_get_num_samples(), lame_set_in_samplerate(), lame_set_num_channels(), lame_set_num_samples(), lame_set_stream_binary_mode(), MAX_U_32_NUM, mp3input_data, mp3data_struct::nsamp, parse_file_header(), pcmswapbytes, mp3data_struct::samplerate, sf_ogg, sf_raw, sf_unknown, silent, mp3data_struct::stereo, and swapbytes.

Referenced by init_infile().

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static int parse_aiff_header	(	lame_global_flags *	gfp,
		FILE *	sf
	)			`[static]`

Definition at line 1183 of file get_audio.c.

References aiff_check2(), error_printf(), fskip(), gfp, IFF_ID_2CBE, IFF_ID_2CLE, IFF_ID_AIFC, IFF_ID_AIFF, IFF_ID_COMM, IFF_ID_NONE, IFF_ID_SSND, lame_set_in_samplerate(), lame_set_num_channels(), lame_set_num_samples(), pcmbitwidth, pcmswapbytes, Read16BitsHighLow(), Read32BitsHighLow(), ReadIeeeExtendedHighLow(), silent, and swapbytes.

Referenced by parse_file_header().

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void parse_file_header	(	lame_global_flags *	gfp,
		FILE *	sf
	)

Definition at line 1295 of file get_audio.c.

References count_samples_carefully, error_printf(), gfp, IFF_ID_FORM, input_format, parse_aiff_header(), parse_wave_header(), Read32BitsHighLow(), sf_aiff, sf_raw, sf_wave, silent, and WAV_ID_RIFF.

Referenced by OpenSndFile().

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static int parse_wave_header	(	lame_global_flags *	gfp,
		FILE *	sf
	)			`[static]`

Definition at line 1042 of file get_audio.c.

References error_printf(), fskip(), gfp, lame_set_in_samplerate(), lame_set_num_channels(), lame_set_num_samples(), pcmbitwidth, Read16BitsLowHigh(), Read32BitsHighLow(), Read32BitsLowHigh, silent, WAV_ID_DATA, WAV_ID_FMT, and WAV_ID_WAVE.

Referenced by parse_file_header().

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int read_samples_mp3	(	lame_global_flags *const	gfp,
		FILE *const	musicin,
		short int	mpg123pcm[2][1152],
		int	num_chan
	)			`[static]`

Definition at line 446 of file get_audio.c.

References error_printf(), gfp, lame_decode_fromfile(), lame_get_in_samplerate(), lame_get_num_channels(), mp3input_data, mp3data_struct::samplerate, silent, and mp3data_struct::stereo.

Referenced by get_audio_common().

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int read_samples_pcm	(	FILE *	musicin,
		int	sample_buffer[2304],
		int	frame_size,
		int	samples_to_read
	)			`[static]`

Definition at line 963 of file get_audio.c.

References error_printf(), in_endian, input_format, order_bigEndian, order_littleEndian, order_unknown, pcmbitwidth, pcmswapbytes, sf_wave, silent, and unpack_read_samples().

Referenced by get_audio_common().

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char* strchr ( )

char* * strrchr ( )

void SwapBytesInWords	(	short *	ptr,
		int	short_words
	)

Definition at line 233 of file get_audio.c.

static int unpack_read_samples	(	const int	samples_to_read,
		const int	bytes_per_sample,
		const int	swap_order,
		int *	sample_buffer,
		FILE *	pcm_in
	)			`[static]`

Definition at line 905 of file get_audio.c.

References GA_URS_IFLOOP, and i.

Referenced by read_samples_pcm().

int WriteWaveHeader	(	FILE *const	fp,
		const int	pcmbytes,
		const int	freq,
		const int	channels,
		const int	bits
	)

Definition at line 485 of file get_audio.c.

References Write16BitsLowHigh(), and Write32BitsLowHigh().

Referenced by lame_decoder().

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Variable Documentation

int count_samples_carefully

Definition at line 78 of file get_audio.c.

Referenced by get_audio_common(), init_infile(), and parse_file_header().

FILE* musicin

Definition at line 82 of file get_audio.c.

Referenced by close_infile(), get_audio_common(), and init_infile().

unsigned int num_samples_read

Definition at line 81 of file get_audio.c.

Referenced by get_audio_common(), and init_infile().

int pcmbitwidth

Definition at line 79 of file get_audio.c.

Referenced by init_infile(), parse_aiff_header(), parse_wave_header(), and read_samples_pcm().

int pcmswapbytes = 0

Definition at line 80 of file get_audio.c.

Referenced by init_infile(), OpenSndFile(), parse_aiff_header(), and read_samples_pcm().

Generated on Sun Dec 2 11:34:37 2007 for LAME by

1.5.2


Defines
#define	strchr index
#define	strrchr rindex
#define	memcpy(d, s, n) bcopy ((s), (d), (n))
#define	memmove(d, s, n) bcopy ((s), (d), (n))
#define	MAX_U_32_NUM 0xFFFFFFFF
#define	GA_URS_IFLOOP(ga_urs_bps)
#define	IFF_ID_FORM 0x464f524d
#define	IFF_ID_AIFF 0x41494646
#define	IFF_ID_AIFC 0x41494643
#define	IFF_ID_COMM 0x434f4d4d
#define	IFF_ID_SSND 0x53534e44
#define	IFF_ID_MPEG 0x4d504547
#define	IFF_ID_NONE 0x4e4f4e45 /* "NONE" */
#define	IFF_ID_2CBE 0x74776f73 /* "twos" */
#define	IFF_ID_2CLE 0x736f7774 /* "sowt" */
#define	WAV_ID_RIFF 0x52494646
#define	WAV_ID_WAVE 0x57415645
#define	WAV_ID_FMT 0x666d7420
#define	WAV_ID_DATA 0x64617461
Functions
char *	strchr ()
char **	strrchr ()
int	lame_decode_initfile (FILE fd, mp3data_struct mp3data, int enc_delay, int enc_padding)
int	lame_decode_fromfile (FILE fd, short int pcm_l[], short int pcm_r[], mp3data_struct mp3data)
static int	read_samples_pcm (FILE *musicin, int sample_buffer[2304], int frame_size, int samples_to_read)
static int	read_samples_mp3 (lame_global_flags const gfp, FILE const musicin, short int mpg123pcm[2][1152], int num_chan)
void	CloseSndFile (sound_file_format input, FILE *musicin)
FILE *	OpenSndFile (lame_global_flags gfp, char , int enc_delay, int enc_padding)
static int	fskip (FILE *fp, long offset, int whence)
FILE *	init_outfile (char *outPath, int decode)
void	init_infile (lame_global_flags gfp, char inPath, int enc_delay, int enc_padding)
void	close_infile (void)
void	SwapBytesInWords (short *ptr, int short_words)
static int	get_audio_common (lame_global_flags *const gfp, int buffer[2][1152], short buffer16[2][1152])
int	get_audio (lame_global_flags *const gfp, int buffer[2][1152])
int	get_audio16 (lame_global_flags *const gfp, short buffer[2][1152])
int	WriteWaveHeader (FILE *const fp, const int pcmbytes, const int freq, const int channels, const int bits)
static int	unpack_read_samples (const int samples_to_read, const int bytes_per_sample, const int swap_order, int sample_buffer, FILE pcm_in)
static int	parse_wave_header (lame_global_flags gfp, FILE sf)
int	aiff_check2 (IFF_AIFF *const pcm_aiff_data)
static int	parse_aiff_header (lame_global_flags gfp, FILE sf)
void	parse_file_header (lame_global_flags gfp, FILE sf)
Variables
int	count_samples_carefully
int	pcmbitwidth
int	pcmswapbytes = 0
unsigned int	num_samples_read
FILE *	musicin