enc_base.h File Reference

Go to the source code of this file.

Data Structures

struct aiff_enc_config

encoder config structures More...

struct mp3_enc_config

struct wav_enc_config

struct wavpack_enc_config

struct encoder_config

struct enc_chunk_hdr

struct enc_file_event_data

encoder can write extra data to the file such as headers or more encoded samples and must update sizes and samples accordingly. More...

struct enc_buffer_event_data

encoder may add some data to the end of the last and start of the next but must never yield when called so any encoding done should be absolutely minimal. More...

struct enc_inputs

Callbacks called by encoder codec. More...

struct enc_parameters

Defines

#define SKIPBYTES(p, count)   ((typeof (p))((char *)(p) + (count)))

#define P2_M1(p2)   ((1 << (p2))-1)

#define ALIGN_DOWN_P2(n, p2)   ((n) & ~P2_M1(p2))

#define ALIGN_UP_P2(n, p2)   ALIGN_DOWN_P2((n) + P2_M1(p2),p2)

#define MP3_BITR_CAP_8   (1 << 0)

mp3_enc.codec

#define MP3_BITR_CAP_16   (1 << 1)

#define MP3_BITR_CAP_24   (1 << 2)

#define MP3_BITR_CAP_32   (1 << 3)

#define MP3_BITR_CAP_40   (1 << 4)

#define MP3_BITR_CAP_48   (1 << 5)

#define MP3_BITR_CAP_56   (1 << 6)

#define MP3_BITR_CAP_64   (1 << 7)

#define MP3_BITR_CAP_80   (1 << 8)

#define MP3_BITR_CAP_96   (1 << 9)

#define MP3_BITR_CAP_112   (1 << 10)

#define MP3_BITR_CAP_128   (1 << 11)

#define MP3_BITR_CAP_144   (1 << 12)

#define MP3_BITR_CAP_160   (1 << 13)

#define MP3_BITR_CAP_192   (1 << 14)

#define MP3_BITR_CAP_224   (1 << 15)

#define MP3_BITR_CAP_256   (1 << 16)

#define MP3_BITR_CAP_320   (1 << 17)

#define MP3_ENC_NUM_BITR   18

#define MPEG1_SAMPR_CAPS   (SAMPR_CAP_32 | SAMPR_CAP_48 | SAMPR_CAP_44)

#define MPEG1_BITR_CAPS

#define MPEG2_SAMPR_CAPS   (SAMPR_CAP_22 | SAMPR_CAP_24 | SAMPR_CAP_16)

#define MPEG2_BITR_CAPS

#define MP3_ENC_SAMPR_CAPS   (MPEG1_SAMPR_CAPS | MPEG2_SAMPR_CAPS)

#define MP3_ENC_NUM_SAMPR   6

#define MP3_ENC_BITRATE_CFG_DEFAULT   11

#define MP3_ENC_BITRATE_CFG_VALUE_LIST

#define WAV_ENC_SAMPR_CAPS   SAMPR_CAP_ALL

wav_enc.codec

#define WAVPACK_ENC_SAMPR_CAPS   SAMPR_CAP_ALL

wavpack_enc.codec

#define CHUNKF_START_FILE   0x0001ul

Encoder chunk macros and definitions.

#define CHUNKF_END_FILE   0x0002ul

#define CHUNKF_PRERECORD   0x0010ul

#define CHUNKF_ABORT   0x0020ul

#define CHUNKF_ERROR   (~0ul ^ (~0ul >> 1))

#define CHUNKF_ALLFLAGS   (0x0033ul | CHUNKF_ERROR)

#define ENC_CHUNK_HDR_SIZE   ALIGN_UP_P2(sizeof (struct enc_chunk_hdr), 2)

#define ENC_CHUNK_SKIP_HDR(t, hdr)   ((typeof (t))((char *)hdr + ENC_CHUNK_HDR_SIZE))

#define ENC_CHUNK_HDR(p)   ((struct enc_chunk_hdr *)(p))

#define PCM_MAX_FEED_SIZE   20000

Enumerations

enum enc_events { ENC_START_FILE = 0, ENC_WRITE_CHUNK, ENC_END_FILE, ENC_REC_NEW_STREAM }

Functions

void enc_get_inputs (struct enc_inputs *inputs)

void enc_set_parameters (struct enc_parameters *params)

struct enc_chunk_hdr * enc_get_chunk (void)

void enc_finish_chunk (void)

unsigned char * enc_get_pcm_data (size_t size)

size_t enc_unget_pcm_data (size_t size)

Variables

const unsigned long mp3_enc_sampr [6]

const unsigned long mp3_enc_bitr [18]

Define Documentation

#define ALIGN_DOWN_P2	(	n,
		p2		)	((n) & ~P2_M1(p2))

#define ALIGN_UP_P2	(	n,
		p2		)	ALIGN_DOWN_P2((n) + P2_M1(p2),p2)

#define CHUNKF_ABORT 0x0020ul

#define CHUNKF_ALLFLAGS (0x0033ul | CHUNKF_ERROR)

#define CHUNKF_END_FILE 0x0002ul

#define CHUNKF_ERROR (~0ul ^ (~0ul >> 1))

#define CHUNKF_PRERECORD 0x0010ul

#define CHUNKF_START_FILE 0x0001ul

Encoder chunk macros and definitions.

Referenced by encode_frame().

#define ENC_CHUNK_HDR ( p ) ((struct enc_chunk_hdr *)(p))

#define ENC_CHUNK_HDR_SIZE ALIGN_UP_P2(sizeof (struct enc_chunk_hdr), 2)

#define ENC_CHUNK_SKIP_HDR	(	t,
		hdr		)	((typeof (t))((char *)hdr + ENC_CHUNK_HDR_SIZE))

Referenced by EncodeFrame().

#define MP3_BITR_CAP_112 (1 << 10)

#define MP3_BITR_CAP_128 (1 << 11)

#define MP3_BITR_CAP_144 (1 << 12)

#define MP3_BITR_CAP_16 (1 << 1)

#define MP3_BITR_CAP_160 (1 << 13)

#define MP3_BITR_CAP_192 (1 << 14)

#define MP3_BITR_CAP_224 (1 << 15)

#define MP3_BITR_CAP_24 (1 << 2)

#define MP3_BITR_CAP_256 (1 << 16)

#define MP3_BITR_CAP_32 (1 << 3)

#define MP3_BITR_CAP_320 (1 << 17)

#define MP3_BITR_CAP_40 (1 << 4)

#define MP3_BITR_CAP_48 (1 << 5)

#define MP3_BITR_CAP_56 (1 << 6)

#define MP3_BITR_CAP_64 (1 << 7)

#define MP3_BITR_CAP_8 (1 << 0)

mp3_enc.codec

#define MP3_BITR_CAP_80 (1 << 8)

#define MP3_BITR_CAP_96 (1 << 9)

#define MP3_ENC_BITRATE_CFG_DEFAULT 11

#define MP3_ENC_BITRATE_CFG_VALUE_LIST

Value:

"8,16,24,32,40,48,56,64,80,96," \
                                        "112,128,144,160,192,224,256,320"

#define MP3_ENC_NUM_BITR 18

#define MP3_ENC_NUM_SAMPR 6

#define MP3_ENC_SAMPR_CAPS (MPEG1_SAMPR_CAPS | MPEG2_SAMPR_CAPS)

#define MPEG1_BITR_CAPS

Value:

(MP3_BITR_CAP_32  | MP3_BITR_CAP_40  | MP3_BITR_CAP_48  | \
                             MP3_BITR_CAP_56  | MP3_BITR_CAP_64  | MP3_BITR_CAP_80  | \
                             MP3_BITR_CAP_96  | MP3_BITR_CAP_112 | MP3_BITR_CAP_128 | \
                             MP3_BITR_CAP_160 | MP3_BITR_CAP_192 | MP3_BITR_CAP_224 | \
                             MP3_BITR_CAP_256 | MP3_BITR_CAP_320)

#define MPEG1_SAMPR_CAPS (SAMPR_CAP_32 | SAMPR_CAP_48 | SAMPR_CAP_44)

#define MPEG2_BITR_CAPS

Value:

(MP3_BITR_CAP_8   | MP3_BITR_CAP_16  | MP3_BITR_CAP_24  | \
                             MP3_BITR_CAP_32  | MP3_BITR_CAP_40  | MP3_BITR_CAP_48  | \
                             MP3_BITR_CAP_56  | MP3_BITR_CAP_64  | MP3_BITR_CAP_80  | \
                             MP3_BITR_CAP_96  | MP3_BITR_CAP_112 | MP3_BITR_CAP_128 | \
                             MP3_BITR_CAP_144 | MP3_BITR_CAP_160)

#define MPEG2_SAMPR_CAPS (SAMPR_CAP_22 | SAMPR_CAP_24 | SAMPR_CAP_16)

#define P2_M1 ( p2 ) ((1 << (p2))-1)

#define PCM_MAX_FEED_SIZE 20000

#define SKIPBYTES	(	p,
		count		)	((typeof (p))((char *)(p) + (count)))

Referenced by byte_swap_frame32().

#define WAV_ENC_SAMPR_CAPS SAMPR_CAP_ALL

wav_enc.codec

#define WAVPACK_ENC_SAMPR_CAPS SAMPR_CAP_ALL

wavpack_enc.codec

Enumeration Type Documentation

enum enc_events

Enumerator:

ENC_START_FILE
ENC_WRITE_CHUNK
ENC_END_FILE
ENC_REC_NEW_STREAM

Function Documentation

void enc_finish_chunk ( void )

struct enc_chunk_hdr* enc_get_chunk ( void ) [read]

void enc_get_inputs ( struct enc_inputs * inputs )

unsigned char* enc_get_pcm_data ( size_t size )

void enc_set_parameters ( struct enc_parameters * params )

size_t enc_unget_pcm_data ( size_t size )

Variable Documentation

const unsigned long mp3_enc_bitr[18]

const unsigned long mp3_enc_sampr[6]


Data Structures
struct	aiff_enc_config
	encoder config structures More...
struct	mp3_enc_config
struct	wav_enc_config
struct	wavpack_enc_config
struct	encoder_config
struct	enc_chunk_hdr
struct	enc_file_event_data
	encoder can write extra data to the file such as headers or more encoded samples and must update sizes and samples accordingly. More...
struct	enc_buffer_event_data
	encoder may add some data to the end of the last and start of the next but must never yield when called so any encoding done should be absolutely minimal. More...
struct	enc_inputs
	Callbacks called by encoder codec. More...
struct	enc_parameters
Defines
#define	SKIPBYTES(p, count) ((typeof (p))((char *)(p) + (count)))
#define	P2_M1(p2) ((1 << (p2))-1)
#define	ALIGN_DOWN_P2(n, p2) ((n) & ~P2_M1(p2))
#define	ALIGN_UP_P2(n, p2) ALIGN_DOWN_P2((n) + P2_M1(p2),p2)
#define	MP3_BITR_CAP_8 (1 << 0)
	mp3_enc.codec
#define	MP3_BITR_CAP_16 (1 << 1)
#define	MP3_BITR_CAP_24 (1 << 2)
#define	MP3_BITR_CAP_32 (1 << 3)
#define	MP3_BITR_CAP_40 (1 << 4)
#define	MP3_BITR_CAP_48 (1 << 5)
#define	MP3_BITR_CAP_56 (1 << 6)
#define	MP3_BITR_CAP_64 (1 << 7)
#define	MP3_BITR_CAP_80 (1 << 8)
#define	MP3_BITR_CAP_96 (1 << 9)
#define	MP3_BITR_CAP_112 (1 << 10)
#define	MP3_BITR_CAP_128 (1 << 11)
#define	MP3_BITR_CAP_144 (1 << 12)
#define	MP3_BITR_CAP_160 (1 << 13)
#define	MP3_BITR_CAP_192 (1 << 14)
#define	MP3_BITR_CAP_224 (1 << 15)
#define	MP3_BITR_CAP_256 (1 << 16)
#define	MP3_BITR_CAP_320 (1 << 17)
#define	MP3_ENC_NUM_BITR 18
#define	MPEG1_SAMPR_CAPS (SAMPR_CAP_32 \| SAMPR_CAP_48 \| SAMPR_CAP_44)
#define	MPEG1_BITR_CAPS
#define	MPEG2_SAMPR_CAPS (SAMPR_CAP_22 \| SAMPR_CAP_24 \| SAMPR_CAP_16)
#define	MPEG2_BITR_CAPS
#define	MP3_ENC_SAMPR_CAPS (MPEG1_SAMPR_CAPS \| MPEG2_SAMPR_CAPS)
#define	MP3_ENC_NUM_SAMPR 6
#define	MP3_ENC_BITRATE_CFG_DEFAULT 11
#define	MP3_ENC_BITRATE_CFG_VALUE_LIST
#define	WAV_ENC_SAMPR_CAPS SAMPR_CAP_ALL
	wav_enc.codec
#define	WAVPACK_ENC_SAMPR_CAPS SAMPR_CAP_ALL
	wavpack_enc.codec
#define	CHUNKF_START_FILE 0x0001ul
	Encoder chunk macros and definitions.
#define	CHUNKF_END_FILE 0x0002ul
#define	CHUNKF_PRERECORD 0x0010ul
#define	CHUNKF_ABORT 0x0020ul
#define	CHUNKF_ERROR (~0ul ^ (~0ul >> 1))
#define	CHUNKF_ALLFLAGS (0x0033ul \| CHUNKF_ERROR)
#define	ENC_CHUNK_HDR_SIZE ALIGN_UP_P2(sizeof (struct enc_chunk_hdr), 2)
#define	ENC_CHUNK_SKIP_HDR(t, hdr) ((typeof (t))((char *)hdr + ENC_CHUNK_HDR_SIZE))
#define	ENC_CHUNK_HDR(p) ((struct enc_chunk_hdr *)(p))
#define	PCM_MAX_FEED_SIZE 20000
Enumerations
enum	enc_events { ENC_START_FILE = 0, ENC_WRITE_CHUNK, ENC_END_FILE, ENC_REC_NEW_STREAM }
Functions
void	enc_get_inputs (struct enc_inputs *inputs)
void	enc_set_parameters (struct enc_parameters *params)
struct enc_chunk_hdr *	enc_get_chunk (void)
void	enc_finish_chunk (void)
unsigned char *	enc_get_pcm_data (size_t size)
size_t	enc_unget_pcm_data (size_t size)
Variables
const unsigned long	mp3_enc_sampr [6]
const unsigned long	mp3_enc_bitr [18]