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Code Issues Releases Activity

Move lpc_compute_autocorr() from DSPContext to a new struct LPCContext.

Browse Source 
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 56f8952b25)
This commit is contained in:
Justin Ruggles 2011-01-21 00:11:44 +00:00 committed by Michael Niedermayer
parent d3058be6ee
commit 0d8837bdda
12 changed files with 63 additions and 43 deletions
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14
libavcodec/alacenc.c
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@ -51,11 +51,11 @@ typedef struct RiceContext {
int rice_modifier;
} RiceContext;
typedef struct LPCContext {
typedef struct AlacLPCContext {
int lpc_order;
int lpc_coeff[ALAC_MAX_LPC_ORDER+1];
int lpc_quant;
} LPCContext;
} AlacLPCContext;
typedef struct AlacEncodeContext {
int compression_level;
@ -69,8 +69,8 @@ typedef struct AlacEncodeContext {
int interlacing_leftweight;
PutBitContext pbctx;
RiceContext rc;
LPCContext lpc[MAX_CHANNELS];
DSPContext dspctx;
AlacLPCContext lpc[MAX_CHANNELS];
LPCContext lpc_ctx;
AVCodecContext *avctx;
} AlacEncodeContext;
@ -141,7 +141,7 @@ static void calc_predictor_params(AlacEncodeContext *s, int ch)
s->lpc[ch].lpc_coeff[4] = 80;
s->lpc[ch].lpc_coeff[5] = -25;
} else {
opt_order = ff_lpc_calc_coefs(&s->dspctx, s->sample_buf[ch],
opt_order = ff_lpc_calc_coefs(&s->lpc_ctx, s->sample_buf[ch],
s->avctx->frame_size,
s->min_prediction_order,
s->max_prediction_order,
@ -237,7 +237,7 @@ static void alac_stereo_decorrelation(AlacEncodeContext *s)
static void alac_linear_predictor(AlacEncodeContext *s, int ch)
{
int i;
LPCContext lpc = s->lpc[ch];
AlacLPCContext lpc = s->lpc[ch];
if(lpc.lpc_order == 31) {
s->predictor_buf[0] = s->sample_buf[ch][0];
@ -455,7 +455,7 @@ static av_cold int alac_encode_init(AVCodecContext *avctx)
avctx->coded_frame->key_frame = 1;
s->avctx = avctx;
dsputil_init(&s->dspctx, avctx);
ff_lpc_init(&s->lpc_ctx);
return 0;
}

12
libavcodec/arm/asm-offsets.h
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@ -33,16 +33,16 @@
#define Y_DC_SCALE 0xab4
#define C_DC_SCALE 0xab8
#define AC_PRED 0xae0
#define BLOCK_LAST_INDEX 0x21c0
#define INTER_SCANTAB_RASTER_END 0x23c0
#define H263_AIC 0x2670
#define BLOCK_LAST_INDEX 0x21bc
#define INTER_SCANTAB_RASTER_END 0x23bc
#define H263_AIC 0x2668
#elif defined(__APPLE__)
#define Y_DC_SCALE 0xa70
#define C_DC_SCALE 0xa74
#define AC_PRED 0xa9c
#define BLOCK_LAST_INDEX 0x217c
#define INTER_SCANTAB_RASTER_END 0x237c
#define H263_AIC 0x2620
#define BLOCK_LAST_INDEX 0x2178
#define INTER_SCANTAB_RASTER_END 0x2378
#define H263_AIC 0x261c
#endif
#endif

4
libavcodec/dsputil.c
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@ -36,7 +36,6 @@
#include "mathops.h"
#include "mpegvideo.h"
#include "config.h"
#include "lpc.h"
#include "ac3dec.h"
#include "vorbis.h"
#include "png.h"
@ -4430,9 +4429,6 @@ av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
#endif
#if CONFIG_AC3_DECODER
c->ac3_downmix = ff_ac3_downmix_c;
#endif
#if CONFIG_LPC
c->lpc_compute_autocorr = ff_lpc_compute_autocorr;
#endif
c->vector_fmul = vector_fmul_c;
c->vector_fmul_reverse = vector_fmul_reverse_c;

2
libavcodec/dsputil.h
View File

@ -374,8 +374,6 @@ typedef struct DSPContext {
/* assume len is a multiple of 4, and arrays are 16-byte aligned */
void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
void (*ac3_downmix)(float (*samples)[256], float (*matrix)[2], int out_ch, int in_ch, int len);
/* no alignment needed */
void (*lpc_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);
/* assume len is a multiple of 8, and arrays are 16-byte aligned */
void (*vector_fmul)(float *dst, const float *src, int len);
void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);

7
libavcodec/flacenc.c
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@ -23,7 +23,6 @@
#include "libavutil/md5.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
#include "golomb.h"
#include "lpc.h"
#include "flac.h"
@ -95,7 +94,7 @@ typedef struct FlacEncodeContext {
FlacFrame frame;
CompressionOptions options;
AVCodecContext *avctx;
DSPContext dsp;
LPCContext lpc_ctx;
struct AVMD5 *md5ctx;
} FlacEncodeContext;
@ -217,7 +216,7 @@ static av_cold int flac_encode_init(AVCodecContext *avctx)
s->avctx = avctx;
dsputil_init(&s->dsp, avctx);
ff_lpc_init(&s->lpc_ctx);
if (avctx->sample_fmt != AV_SAMPLE_FMT_S16)
return -1;
@ -902,7 +901,7 @@ static int encode_residual_ch(FlacEncodeContext *s, int ch)
/* LPC */
sub->type = FLAC_SUBFRAME_LPC;
opt_order = ff_lpc_calc_coefs(&s->dsp, smp, n, min_order, max_order,
opt_order = ff_lpc_calc_coefs(&s->lpc_ctx, smp, n, min_order, max_order,
s->options.lpc_coeff_precision, coefs, shift, s->options.lpc_type,
s->options.lpc_passes, omethod,
MAX_LPC_SHIFT, 0);

13
libavcodec/lpc.c
View File

@ -20,7 +20,6 @@
*/
#include "libavutil/lls.h"
#include "dsputil.h"
#define LPC_USE_DOUBLE
#include "lpc.h"
@ -55,7 +54,7 @@ static void apply_welch_window(const int32_t *data, int len, double *w_data)
* Calculate autocorrelation data from audio samples
* A Welch window function is applied before calculation.
*/
void ff_lpc_compute_autocorr(const int32_t *data, int len, int lag,
static void lpc_compute_autocorr_c(const int32_t *data, int len, int lag,
double *autoc)
{
int i, j;
@ -162,7 +161,7 @@ static int estimate_best_order(double *ref, int min_order, int max_order)
* 1 = LPC with coeffs determined by Levinson-Durbin recursion
* 2+ = LPC with coeffs determined by Cholesky factorization using (use_lpc-1) passes.
*/
int ff_lpc_calc_coefs(DSPContext *s,
int ff_lpc_calc_coefs(LPCContext *s,
const int32_t *samples, int blocksize, int min_order,
int max_order, int precision,
int32_t coefs[][MAX_LPC_ORDER], int *shift,
@ -236,3 +235,11 @@ int ff_lpc_calc_coefs(DSPContext *s,
return opt_order;
}
av_cold void ff_lpc_init(LPCContext *s)
{
s->lpc_compute_autocorr = lpc_compute_autocorr_c;
if (HAVE_MMX)
ff_lpc_init_x86(s);
}

24
libavcodec/lpc.h
View File

@ -36,18 +36,36 @@
#define MAX_LPC_ORDER 32
typedef struct LPCContext {
/**
* Perform autocorrelation on input samples with delay of 0 to lag.
* @param data input samples.
* no alignment needed.
* @param len number of input samples to process
* @param lag maximum delay to calculate
* @param autoc output autocorrelation coefficients.
* constraints: array size must be at least lag+1.
*/
void (*lpc_compute_autocorr)(const int32_t *data, int len, int lag,
double *autoc);
} LPCContext;
/**
* Calculate LPC coefficients for multiple orders
*/
int ff_lpc_calc_coefs(DSPContext *s,
int ff_lpc_calc_coefs(LPCContext *s,
const int32_t *samples, int blocksize, int min_order,
int max_order, int precision,
int32_t coefs[][MAX_LPC_ORDER], int *shift,
enum AVLPCType lpc_type, int lpc_passes,
int omethod, int max_shift, int zero_shift);
void ff_lpc_compute_autocorr(const int32_t *data, int len, int lag,
double *autoc);
/**
* Initialize LPCContext.
*/
void ff_lpc_init(LPCContext *s);
void ff_lpc_init_x86(LPCContext *s);
#ifdef LPC_USE_DOUBLE
#define LPC_TYPE double

4
libavcodec/ra144.h
View File

@ -23,7 +23,7 @@
#define AVCODEC_RA144_H
#include <stdint.h>
#include "dsputil.h"
#include "lpc.h"
#define NBLOCKS 4 ///< number of subblocks within a block
#define BLOCKSIZE 40 ///< subblock size in 16-bit words
@ -34,7 +34,7 @@
typedef struct {
AVCodecContext *avctx;
DSPContext dsp;
LPCContext lpc_ctx;
unsigned int old_energy; ///< previous frame energy

5
libavcodec/ra144enc.c
View File

@ -29,7 +29,6 @@
#include "avcodec.h"
#include "put_bits.h"
#include "lpc.h"
#include "celp_filters.h"
#include "ra144.h"
@ -53,7 +52,7 @@ static av_cold int ra144_encode_init(AVCodecContext * avctx)
ractx->lpc_coef[0] = ractx->lpc_tables[0];
ractx->lpc_coef[1] = ractx->lpc_tables[1];
ractx->avctx = avctx;
dsputil_init(&ractx->dsp, avctx);
ff_lpc_init(&ractx->lpc_ctx);
return 0;
}
@ -451,7 +450,7 @@ static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,
energy = ff_energy_tab[quantize(ff_t_sqrt(energy >> 5) >> 10, ff_energy_tab,
32)];
ff_lpc_calc_coefs(&ractx->dsp, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
ff_lpc_calc_coefs(&ractx->lpc_ctx, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
LPC_ORDER, 16, lpc_coefs, shift, AV_LPC_TYPE_LEVINSON,
0, ORDER_METHOD_EST, 12, 0);
for (i = 0; i < LPC_ORDER; i++)

3
libavcodec/x86/dsputil_mmx.h
View File

@ -200,9 +200,6 @@ void ff_vc1dsp_init_mmx(DSPContext* dsp, AVCodecContext *avctx);
void ff_put_vc1_mspel_mc00_mmx(uint8_t *dst, const uint8_t *src, int stride, int rnd);
void ff_avg_vc1_mspel_mc00_mmx2(uint8_t *dst, const uint8_t *src, int stride, int rnd);
void ff_lpc_compute_autocorr_sse2(const int32_t *data, int len, int lag,
double *autoc);
void ff_mmx_idct(DCTELEM *block);
void ff_mmxext_idct(DCTELEM *block);

4
libavcodec/x86/dsputilenc_mmx.c
View File

@ -1166,10 +1166,6 @@ void dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
#endif
}
if (CONFIG_LPC && mm_flags & (AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW)) {
c->lpc_compute_autocorr = ff_lpc_compute_autocorr_sse2;
}
#if HAVE_SSSE3
if(mm_flags & AV_CPU_FLAG_SSSE3){
if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

14
libavcodec/x86/lpc_mmx.c
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@ -20,7 +20,8 @@
*/
#include "libavutil/x86_cpu.h"
#include "dsputil_mmx.h"
#include "libavutil/cpu.h"
#include "libavcodec/lpc.h"
static void apply_welch_window_sse2(const int32_t *data, int len, double *w_data)
{
@ -68,7 +69,7 @@ static void apply_welch_window_sse2(const int32_t *data, int len, double *w_data
#undef WELCH
}
void ff_lpc_compute_autocorr_sse2(const int32_t *data, int len, int lag,
static void lpc_compute_autocorr_sse2(const int32_t *data, int len, int lag,
double *autoc)
{
double tmp[len + lag + 2];
@ -141,3 +142,12 @@ void ff_lpc_compute_autocorr_sse2(const int32_t *data, int len, int lag,
}
}
}
av_cold void ff_lpc_init_x86(LPCContext *c)
{
int mm_flags = av_get_cpu_flags();
if (mm_flags & (AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW)) {
c->lpc_compute_autocorr = lpc_compute_autocorr_sse2;
}
}