aacps_common.c File Reference

#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/thread.h"
#include "aacps.h"
#include "get_bits.h"
#include "aacpsdata.c"

Go to the source code of this file.

Macros
#define	READ_PAR_DATA(PAR, OFFSET, MASK, ERR_CONDITION, NB_BITS, MAX_DEPTH)
#define	PS_INIT_VLC_STATIC(num, nb_bits, size)
#define	PS_VLC_ROW(name)   { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }

Enumerations
enum	{   huff_iid_df1, huff_iid_dt1, huff_iid_df0, huff_iid_dt0,   huff_icc_df, huff_icc_dt, huff_ipd_df, huff_ipd_dt,   huff_opd_df, huff_opd_dt }

Functions
static int	read_iid_data (AVCodecContext *avctx, GetBitContext *gb, PSCommonContext *ps, int8_t(*iid)[34], int table_idx, int e, int dt)
static int	read_icc_data (AVCodecContext *avctx, GetBitContext *gb, PSCommonContext *ps, int8_t(*icc)[34], int table_idx, int e, int dt)
static int	read_ipdopd_data (AVCodecContext *avctx, GetBitContext *gb, PSCommonContext *ps, int8_t(*ipdopd)[34], int table_idx, int e, int dt)
static int	ps_read_extension_data (GetBitContext *gb, PSCommonContext *ps, int ps_extension_id)
int	ff_ps_read_data (AVCodecContext *avctx, GetBitContext *gb_host, PSCommonContext *ps, int bits_left)
static av_cold void	ps_init_common (void)
av_cold void	ff_ps_init_common (void)

Variables
static const int8_t	num_env_tab [2][4]
static const int8_t	nr_iidicc_par_tab []
static const int8_t	nr_iidopd_par_tab []
static const int	huff_iid []
static VLC	vlc_ps [10]

Macro Definition Documentation

READ_PAR_DATA

#define READ_PAR_DATA	(		PAR,
			OFFSET,
			MASK,
			ERR_CONDITION,
			NB_BITS,
			MAX_DEPTH
	)

Definition at line 64 of file aacps_common.c.

PS_INIT_VLC_STATIC

#define PS_INIT_VLC_STATIC	(		num,
			nb_bits,
			size
	)

Value:

    INIT_VLC_STATIC(&vlc_ps[num], nb_bits, ps_tmp[num].table_size / ps_tmp[num].elem_size,    \
                    ps_tmp[num].ps_bits, 1, 1,                                          \
                    ps_tmp[num].ps_codes, ps_tmp[num].elem_size, ps_tmp[num].elem_size, \
                    size);

Definition at line 281 of file aacps_common.c.

PS_VLC_ROW

#define PS_VLC_ROW

(

name

)

{ name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }

Definition at line 287 of file aacps_common.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
huff_iid_df1
huff_iid_dt1
huff_iid_df0
huff_iid_dt0
huff_icc_df
huff_icc_dt
huff_ipd_df
huff_ipd_dt
huff_opd_df
huff_opd_dt

Definition at line 42 of file aacps_common.c.

Function Documentation

read_iid_data()

static int read_iid_data ( AVCodecContext *  avctx, GetBitContext *  gb, PSCommonContext *  ps, int8_t(*)  iid[34], int  table_idx, int  e, int  dt  )

static

• Read Inter-channel Intensity Difference/Inter-Channel Coherence/ * Inter-channel Phase Difference/Overall Phase Difference parameters from the * bitstream. * *

  Parameters

  avctx	contains the current codec context *
  gb	pointer to the input bitstream *
  ps	pointer to the Parametric Stereo context *
  iid	pointer to the parameter to be read *
  e	envelope to decode *
  dt	1: time delta-coded, 0: frequency delta-coded

Definition at line 97 of file aacps_common.c.

read_icc_data()

static int read_icc_data ( AVCodecContext *  avctx, GetBitContext *  gb, PSCommonContext *  ps, int8_t(*)  icc[34], int  table_idx, int  e, int  dt  )

static

• Read Inter-channel Intensity Difference/Inter-Channel Coherence/ * Inter-channel Phase Difference/Overall Phase Difference parameters from the * bitstream. * *

  Parameters

  avctx	contains the current codec context *
  gb	pointer to the input bitstream *
  ps	pointer to the Parametric Stereo context *
  icc	pointer to the parameter to be read *
  e	envelope to decode *
  dt	1: time delta-coded, 0: frequency delta-coded

Definition at line 98 of file aacps_common.c.

read_ipdopd_data()

static int read_ipdopd_data ( AVCodecContext *  avctx, GetBitContext *  gb, PSCommonContext *  ps, int8_t(*)  ipdopd[34], int  table_idx, int  e, int  dt  )

static

• Read Inter-channel Intensity Difference/Inter-Channel Coherence/ * Inter-channel Phase Difference/Overall Phase Difference parameters from the * bitstream. * *

  Parameters

  avctx	contains the current codec context *
  gb	pointer to the input bitstream *
  ps	pointer to the Parametric Stereo context *
  ipdopd	pointer to the parameter to be read *
  e	envelope to decode *
  dt	1: time delta-coded, 0: frequency delta-coded

Definition at line 99 of file aacps_common.c.

Referenced by ff_ps_read_data().

ps_read_extension_data()

static int ps_read_extension_data ( GetBitContext *  gb, PSCommonContext *  ps, int  ps_extension_id  )

static

Definition at line 101 of file aacps_common.c.

ff_ps_read_data()

int ff_ps_read_data	(	AVCodecContext *	avctx,
		GetBitContext *	gb_host,
		PSCommonContext *	ps,
		int	bits_left
	)

Definition at line 123 of file aacps_common.c.

Referenced by read_sbr_extension().

ps_init_common()

static av_cold void ps_init_common ( void  )

static

Definition at line 290 of file aacps_common.c.

ff_ps_init_common()

av_cold void ff_ps_init_common

(

void

)

Definition at line 321 of file aacps_common.c.

Referenced by ff_ps_init().

Variable Documentation

num_env_tab

const int8_t num_env_tab[2][4]

static

Initial value:

= {
    { 0, 1, 2, 4, },
    { 1, 2, 3, 4, },
}

Definition at line 29 of file aacps_common.c.

nr_iidicc_par_tab

const int8_t nr_iidicc_par_tab[]

static

Initial value:

= {
    10, 20, 34, 10, 20, 34,
}

Definition at line 34 of file aacps_common.c.

nr_iidopd_par_tab

const int8_t nr_iidopd_par_tab[]

static

Initial value:

= {
     5, 11, 17,  5, 11, 17,
}

Definition at line 38 of file aacps_common.c.

huff_iid

const int huff_iid[]

static

Initial value:

= {
    huff_iid_df0,
    huff_iid_df1,
    huff_iid_dt0,
    huff_iid_dt1,
}

Definition at line 55 of file aacps_common.c.

vlc_ps

VLC vlc_ps[10]

static

Definition at line 62 of file aacps_common.c.