gsmdec_template.c File Reference

GSM decoder. More...

#include "get_bits.h"
#include "gsm.h"
#include "gsmdec_data.h"

Go to the source code of this file.

Functions
static void	apcm_dequant_add (GetBitContext *gb, int16_t *dst, const int *frame_bits)
static int	gsm_mult (int a, int b)
static void	long_term_synth (int16_t *dst, int lag, int gain_idx)
static int	decode_log_area (int coded, int factor, int offset)
static av_noinline int	get_rrp (int filtered)
static int	filter_value (int in, int rrp[8], int v[9])
static void	short_term_synth (GSMContext *ctx, int16_t *dst, const int16_t *src)
static int	postprocess (int16_t *data, int msr)
static int	gsm_decode_block (AVCodecContext *avctx, int16_t *samples, GetBitContext *gb, int mode)

Variables
static const int	requant_tab [4][8]

Detailed Description

GSM decoder.

Definition in file gsmdec_template.c.

Function Documentation

static void apcm_dequant_add ( GetBitContext *  gb, int16_t *  dst, const int *  frame_bits  )

static

Definition at line 38 of file gsmdec_template.c.

Referenced by gsm_decode_block().

static int gsm_mult ( int  a, int  b  )

inlinestatic

Definition at line 49 of file gsmdec_template.c.

Referenced by decode_log_area(), filter_value(), long_term_synth(), and postprocess().

static void long_term_synth ( int16_t *  dst, int  lag, int  gain_idx  )

static

Definition at line 54 of file gsmdec_template.c.

Referenced by gsm_decode_block().

static int decode_log_area ( int  coded, int  factor, int  offset  )

inlinestatic

Definition at line 63 of file gsmdec_template.c.

Referenced by gsm_decode_block().

static av_noinline int get_rrp ( int  filtered )

static

Definition at line 70 of file gsmdec_template.c.

Referenced by short_term_synth().

static int filter_value ( int  in, int  rrp[8], int  v[9]  )

static

Definition at line 79 of file gsmdec_template.c.

Referenced by short_term_synth(), vp3_h_loop_filter_c(), and vp3_v_loop_filter_c().

static void short_term_synth ( GSMContext *  ctx, int16_t *  dst, const int16_t *  src  )

static

Definition at line 90 of file gsmdec_template.c.

Referenced by gsm_decode_block().

static int postprocess ( int16_t *  data, int  msr  )

static

Definition at line 119 of file gsmdec_template.c.

Referenced by gsm_decode_block().

static int gsm_decode_block ( AVCodecContext *  avctx, int16_t *  samples, GetBitContext *  gb, int  mode  )

static

Definition at line 129 of file gsmdec_template.c.

Referenced by ff_msgsm_decode_block(), and gsm_decode_frame().

Variable Documentation

const int requant_tab[4][8]

static

Initial value:

= {
    { 0 },
    { 0, 7 },
    { 0, 2, 5, 7 },
    { 0, 1, 2, 3, 4, 5, 6, 7 }
}

Definition at line 31 of file gsmdec_template.c.

Referenced by apcm_dequant_add().