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Split some SIPR structs to a header file for the upcoming SIPR16k commit

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Originally committed as revision 21232 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak
2010-01-16 03:40:25 +00:00
parent 06cb7a1c8f
commit 65323ed279
2 changed files with 84 additions and 53 deletions
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54
libavcodec/sipr.c
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@ -37,28 +37,11 @@
#include "acelp_filters.h"
#include "celp_filters.h"
#define LSFQ_DIFF_MIN (0.0125 * M_PI)
#define LP_FILTER_ORDER 10
/** Number of past samples needed for excitation interpolation */
#define L_INTERPOL (LP_FILTER_ORDER + 1)
/** Subframe size for all modes except 16k */
#define SUBFR_SIZE 48
#define MAX_SUBFRAME_COUNT 5
#include "sipr.h"
#include "siprdata.h"
typedef enum {
MODE_16k,
MODE_8k5,
MODE_6k5,
MODE_5k0,
MODE_COUNT
} SiprMode;
typedef struct {
const char *mode_name;
uint16_t bits_per_frame;
@ -127,41 +110,6 @@ static const SiprModeParam modes[MODE_COUNT] = {
}
};
typedef struct {
AVCodecContext *avctx;
DSPContext dsp;
SiprMode mode;
float past_pitch_gain;
float lsf_history[LP_FILTER_ORDER];
float excitation[L_INTERPOL + PITCH_DELAY_MAX + 5*SUBFR_SIZE];
DECLARE_ALIGNED_16(float, synth_buf[LP_FILTER_ORDER + 5*SUBFR_SIZE + 6]);
float lsp_history[LP_FILTER_ORDER];
float gain_mem;
float energy_history[4];
float highpass_filt_mem[2];
float postfilter_mem[PITCH_DELAY_MAX + LP_FILTER_ORDER];
/* 5k0 */
float tilt_mem;
float postfilter_agc;
float postfilter_mem5k0[PITCH_DELAY_MAX + LP_FILTER_ORDER];
float postfilter_syn5k0[LP_FILTER_ORDER + SUBFR_SIZE*5];
} SiprContext;
typedef struct {
int vq_indexes[5];
int pitch_delay[5]; ///< pitch delay
int gp_index[5]; ///< adaptive-codebook gain indexes
int16_t fc_indexes[5][10]; ///< fixed-codebook indexes
int gc_index[5]; ///< fixed-codebook gain indexes
} SiprParameters;
static void dequant(float *out, const int *idx, const float *cbs[])
{
int i;