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Merge commit '4cb6964244fd6c099383d8b7e99731e72cc844b9' 

* commit '4cb6964244fd6c099383d8b7e99731e72cc844b9':
  dcadec: simplify decoding of VQ high frequencies

Conflicts:
	configure
	libavcodec/dcadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
tags/n2.2-rc1
Michael Niedermayer 11 years ago
parent
ffb7d7195b 4cb6964244
commit
fb3c33f3cd
7 changed files with 80 additions and 76 deletions
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  1. +0
    -2
      configure
  2. +0
    -23
      libavcodec/arm/dca.h
  3. +7
    -23
      libavcodec/dcadec.c
  4. +16
    -6
      libavcodec/dcadsp.c
  5. +7
    -1
      libavcodec/dcadsp.h
  6. +38
    -15
      libavcodec/x86/dcadsp.asm
  7. +12
    -6
      libavcodec/x86/dcadsp_init.c

+ 0
- 2
configure View File

@@ -1540,7 +1540,6 @@ HAVE_LIST="
altivec_h
arpa_inet_h
asm_mod_q
asm_mod_y
asm_types_h
atomic_cas_ptr
atomics_native
@@ -4147,7 +4146,6 @@ EOF
$ARCH_EXT_LIST_ARM

check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'

[ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic



+ 0
- 23
libavcodec/arm/dca.h View File

@@ -79,27 +79,4 @@ static inline int decode_blockcodes(int code1, int code2, int levels,

#endif

#if HAVE_NEON_INLINE && HAVE_ASM_MOD_Y

#define int8x8_fmul_int32 int8x8_fmul_int32
static inline void int8x8_fmul_int32(av_unused DCADSPContext *dsp,
float *dst, const int8_t *src, int scale)
{
__asm__ ("vcvt.f32.s32 %2, %2, #4 \n"
"vld1.8 {d0}, [%1,:64] \n"
"vmovl.s8 q0, d0 \n"
"vmovl.s16 q1, d1 \n"
"vmovl.s16 q0, d0 \n"
"vcvt.f32.s32 q0, q0 \n"
"vcvt.f32.s32 q1, q1 \n"
"vmul.f32 q0, q0, %y2 \n"
"vmul.f32 q1, q1, %y2 \n"
"vst1.32 {q0-q1}, [%m0,:128] \n"
: "=Um"(*(float (*)[8])dst)
: "r"(src), "x"(scale)
: "d0", "d1", "d2", "d3");
}

#endif

#endif /* AVCODEC_ARM_DCA_H */

+ 7
- 23
libavcodec/dcadec.c View File

@@ -49,14 +49,10 @@
#if ARCH_ARM
# include "arm/dca.h"
#endif
#if ARCH_X86
# include "x86/dca.h"
#endif

//#define TRACE

#define DCA_PRIM_CHANNELS_MAX (7)
#define DCA_SUBBANDS (64)
#define DCA_ABITS_MAX (32) /* Should be 28 */
#define DCA_SUBSUBFRAMES_MAX (4)
#define DCA_SUBFRAMES_MAX (16)
@@ -403,7 +399,7 @@ typedef struct {
int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs
int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index
int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients)
int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient)
int32_t scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2];///< scale factors (2 if transient)
int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook
int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors
float downmix_coef[DCA_PRIM_CHANNELS_MAX + 1][2]; ///< stereo downmix coefficients
@@ -416,7 +412,7 @@ typedef struct {
uint8_t core_downmix_amode; ///< audio channel arrangement of embedded downmix
uint16_t core_downmix_codes[DCA_PRIM_CHANNELS_MAX + 1][4]; ///< embedded downmix coefficients (9-bit codes)

int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands
int32_t high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands

float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data
int lfe_scale_factor;
@@ -1249,14 +1245,6 @@ static int decode_blockcodes(int code1, int code2, int levels, int32_t *values)
static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 };
static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 };

#ifndef int8x8_fmul_int32
static inline void int8x8_fmul_int32(DCADSPContext *dsp, float *dst,
const int8_t *src, int scale)
{
dsp->int8x8_fmul_int32(dst, src, scale);
}
#endif

static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
{
int k, l;
@@ -1381,20 +1369,16 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
/*
* Decode VQ encoded high frequencies
*/
for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
/* 1 vector -> 32 samples but we only need the 8 samples
* for this subsubframe. */
int hfvq = s->high_freq_vq[k][l];

if (s->subband_activity[k] > s->vq_start_subband[k]) {
if (!s->debug_flag & 0x01) {
av_log(s->avctx, AV_LOG_DEBUG,
"Stream with high frequencies VQ coding\n");
s->debug_flag |= 0x01;
}
int8x8_fmul_int32(&s->dcadsp, subband_samples[k][l],
&high_freq_vq[hfvq][subsubframe * 8],
s->scale_factor[k][l][0]);
s->dcadsp.decode_hf(subband_samples[k], s->high_freq_vq[k],
high_freq_vq, subsubframe * 8,
s->scale_factor[k], s->vq_start_subband[k],
s->subband_activity[k]);
}
}



+ 16
- 6
libavcodec/dcadsp.c View File

@@ -24,12 +24,22 @@
#include "libavutil/intreadwrite.h"
#include "dcadsp.h"

static void int8x8_fmul_int32_c(float *dst, const int8_t *src, int scale)
static void decode_hf_c(float dst[DCA_SUBBANDS][8],
const int32_t vq_num[DCA_SUBBANDS],
const int8_t hf_vq[1024][32], intptr_t vq_offset,
int32_t scale[DCA_SUBBANDS][2],
intptr_t start, intptr_t end)
{
float fscale = scale / 16.0;
int i;
for (i = 0; i < 8; i++)
dst[i] = src[i] * fscale;
int i, l;

for (l = start; l < end; l++) {
/* 1 vector -> 32 samples but we only need the 8 samples
* for this subsubframe. */
const int8_t *ptr = &hf_vq[vq_num[l]][vq_offset];
float fscale = scale[l][0] * (1 / 16.0);
for (i = 0; i < 8; i++)
dst[l][i] = ptr[i] * fscale;
}
}

static inline void
@@ -96,7 +106,7 @@ av_cold void ff_dcadsp_init(DCADSPContext *s)
s->lfe_fir[0] = dca_lfe_fir0_c;
s->lfe_fir[1] = dca_lfe_fir1_c;
s->qmf_32_subbands = dca_qmf_32_subbands;
s->int8x8_fmul_int32 = int8x8_fmul_int32_c;
s->decode_hf = decode_hf_c;
if (ARCH_ARM) ff_dcadsp_init_arm(s);
if (ARCH_X86) ff_dcadsp_init_x86(s);
}

+ 7
- 1
libavcodec/dcadsp.h View File

@@ -22,6 +22,8 @@
#include "avfft.h"
#include "synth_filter.h"

#define DCA_SUBBANDS 64

typedef struct DCADSPContext {
void (*lfe_fir[2])(float *out, const float *in, const float *coefs);
void (*qmf_32_subbands)(float samples_in[32][8], int sb_act,
@@ -30,7 +32,11 @@ typedef struct DCADSPContext {
int *synth_buf_offset, float synth_buf2[32],
const float window[512], float *samples_out,
float raXin[32], float scale);
void (*int8x8_fmul_int32)(float *dst, const int8_t *src, int scale);
void (*decode_hf)(float dst[DCA_SUBBANDS][8],
const int32_t vq_num[DCA_SUBBANDS],
const int8_t hf_vq[1024][32], intptr_t vq_offset,
int32_t scale[DCA_SUBBANDS][2],
intptr_t start, intptr_t end);
} DCADSPContext;

void ff_dcadsp_init(DCADSPContext *s);


+ 38
- 15
libavcodec/x86/dcadsp.asm View File

@@ -26,18 +26,35 @@ pf_inv16: times 4 dd 0x3D800000 ; 1/16

SECTION_TEXT

; void int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale)
%macro INT8X8_FMUL_INT32 0
cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale
cvtsi2ss m0, scalem
; void decode_hf(float dst[DCA_SUBBANDS][8], const int32_t vq_num[DCA_SUBBANDS],
; const int8_t hf_vq[1024][32], intptr_t vq_offset,
; int32_t scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end)

%macro DECODE_HF 0
cglobal decode_hf, 6,6,5, dst, num, src, offset, scale, start, end
lea srcq, [srcq + offsetq]
shl startq, 2
mov offsetd, endm
%define DICT offsetq
shl offsetq, 2
mov endm, offsetq
.loop:
%if ARCH_X86_64
mov offsetd, [scaleq + 2 * startq]
cvtsi2ss m0, offsetd
%else
cvtsi2ss m0, [scaleq + 2 * startq]
%endif
mov offsetd, [numq + startq]
mulss m0, [pf_inv16]
shl DICT, 5
shufps m0, m0, 0
%if cpuflag(sse2)
%if cpuflag(sse4)
pmovsxbd m1, [srcq+0]
pmovsxbd m2, [srcq+4]
pmovsxbd m1, [srcq + DICT + 0]
pmovsxbd m2, [srcq + DICT + 4]
%else
movq m1, [srcq]
movq m1, [srcq + DICT]
punpcklbw m1, m1
mova m2, m1
punpcklwd m1, m1
@@ -48,8 +65,8 @@ cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale
cvtdq2ps m1, m1
cvtdq2ps m2, m2
%else
movd mm0, [srcq+0]
movd mm1, [srcq+4]
movd mm0, [srcq + DICT + 0]
movd mm1, [srcq + DICT + 4]
punpcklbw mm0, mm0
punpcklbw mm1, mm1
movq mm2, mm0
@@ -67,27 +84,33 @@ cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale
cvtpi2ps m3, mm2
cvtpi2ps m4, mm3
shufps m0, m0, 0
emms
shufps m1, m3, q1010
shufps m2, m4, q1010
%endif
mulps m1, m0
mulps m2, m0
mova [dstq+ 0], m1
mova [dstq+16], m2
mova [dstq + 8 * startq + 0], m1
mova [dstq + 8 * startq + 16], m2
add startq, 4
cmp startq, endm
jl .loop
.end:
%if notcpuflag(sse2)
emms
%endif
REP_RET
%endmacro

%if ARCH_X86_32
INIT_XMM sse
INT8X8_FMUL_INT32
DECODE_HF
%endif

INIT_XMM sse2
INT8X8_FMUL_INT32
DECODE_HF

INIT_XMM sse4
INT8X8_FMUL_INT32
DECODE_HF

; %1=v0/v1 %2=in1 %3=in2
%macro FIR_LOOP 2-3


+ 12
- 6
libavcodec/x86/dcadsp_init.c View File

@@ -23,9 +23,15 @@
#include "libavutil/x86/cpu.h"
#include "libavcodec/dcadsp.h"

void ff_int8x8_fmul_int32_sse(float *dst, const int8_t *src, int scale);
void ff_int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale);
void ff_int8x8_fmul_int32_sse4(float *dst, const int8_t *src, int scale);
void ff_decode_hf_sse(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
const int8_t hf_vq[1024][32], intptr_t vq_offset,
int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
void ff_decode_hf_sse2(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
const int8_t hf_vq[1024][32], intptr_t vq_offset,
int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
void ff_decode_hf_sse4(float dst[DCA_SUBBANDS][8], const int vq_num[DCA_SUBBANDS],
const int8_t hf_vq[1024][32], intptr_t vq_offset,
int scale[DCA_SUBBANDS][2], intptr_t start, intptr_t end);
void ff_dca_lfe_fir0_sse(float *out, const float *in, const float *coefs);
void ff_dca_lfe_fir1_sse(float *out, const float *in, const float *coefs);

@@ -35,18 +41,18 @@ av_cold void ff_dcadsp_init_x86(DCADSPContext *s)

if (EXTERNAL_SSE(cpu_flags)) {
#if ARCH_X86_32
s->int8x8_fmul_int32 = ff_int8x8_fmul_int32_sse;
s->decode_hf = ff_decode_hf_sse;
#endif
s->lfe_fir[0] = ff_dca_lfe_fir0_sse;
s->lfe_fir[1] = ff_dca_lfe_fir1_sse;
}

if (EXTERNAL_SSE2(cpu_flags)) {
s->int8x8_fmul_int32 = ff_int8x8_fmul_int32_sse2;
s->decode_hf = ff_decode_hf_sse2;
}

if (EXTERNAL_SSE4(cpu_flags)) {
s->int8x8_fmul_int32 = ff_int8x8_fmul_int32_sse4;
s->decode_hf = ff_decode_hf_sse4;
}
}



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