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https://github.com/FFmpeg/FFmpeg.git
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aacenc: add SIMD optimizations for abs_pow34 and quantization
Performance improvements: quant_bands: with: 681 decicycles in quant_bands, 8388453 runs, 155 skips without: 1190 decicycles in quant_bands, 8388386 runs, 222 skips Around 42% for the function Twoloop coder: abs_pow34: with/without: 7.82s/8.17s Around 4% for the entire encoder Both: with/without: 7.15s/8.17s Around 12% for the entire encoder Fast coder: abs_pow34: with/without: 3.40s/3.77s Around 10% for the entire encoder Both: with/without: 3.02s/3.77s Around 20% faster for the entire encoder Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com> Tested-by: Michael Niedermayer <michael@niedermayer.cc> Reviewed-by: James Almer <jamrial@gmail.com>
This commit is contained in:
parent
3b02f6dd7b
commit
d2ae5f77c6
@ -88,7 +88,7 @@ static void encode_window_bands_info(AACEncContext *s, SingleChannelElement *sce
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float next_minrd = INFINITY;
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int next_mincb = 0;
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abs_pow34_v(s->scoefs, sce->coeffs, 1024);
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s->abs_pow34(s->scoefs, sce->coeffs, 1024);
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start = win*128;
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for (cb = 0; cb < CB_TOT_ALL; cb++) {
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path[0][cb].cost = 0.0f;
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@ -299,7 +299,7 @@ static void search_for_quantizers_anmr(AVCodecContext *avctx, AACEncContext *s,
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}
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}
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idx = 1;
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abs_pow34_v(s->scoefs, sce->coeffs, 1024);
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s->abs_pow34(s->scoefs, sce->coeffs, 1024);
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for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
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start = w*128;
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for (g = 0; g < sce->ics.num_swb; g++) {
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@ -446,7 +446,7 @@ static void search_for_quantizers_fast(AVCodecContext *avctx, AACEncContext *s,
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if (!allz)
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return;
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abs_pow34_v(s->scoefs, sce->coeffs, 1024);
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s->abs_pow34(s->scoefs, sce->coeffs, 1024);
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ff_quantize_band_cost_cache_init(s);
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for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
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@ -652,8 +652,8 @@ static void search_for_pns(AACEncContext *s, AVCodecContext *avctx, SingleChanne
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s->fdsp->vector_fmul_scalar(PNS, PNS, scale, sce->ics.swb_sizes[g]);
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pns_senergy = s->fdsp->scalarproduct_float(PNS, PNS, sce->ics.swb_sizes[g]);
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pns_energy += pns_senergy;
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abs_pow34_v(NOR34, &sce->coeffs[start_c], sce->ics.swb_sizes[g]);
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abs_pow34_v(PNS34, PNS, sce->ics.swb_sizes[g]);
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s->abs_pow34(NOR34, &sce->coeffs[start_c], sce->ics.swb_sizes[g]);
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s->abs_pow34(PNS34, PNS, sce->ics.swb_sizes[g]);
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dist1 += quantize_band_cost(s, &sce->coeffs[start_c],
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NOR34,
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sce->ics.swb_sizes[g],
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@ -757,8 +757,9 @@ static void search_for_ms(AACEncContext *s, ChannelElement *cpe)
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{
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int start = 0, i, w, w2, g, sid_sf_boost, prev_mid, prev_side;
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uint8_t nextband0[128], nextband1[128];
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float M[128], S[128];
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float *L34 = s->scoefs, *R34 = s->scoefs + 128, *M34 = s->scoefs + 128*2, *S34 = s->scoefs + 128*3;
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float *M = s->scoefs + 128*0, *S = s->scoefs + 128*1;
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float *L34 = s->scoefs + 128*2, *R34 = s->scoefs + 128*3;
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float *M34 = s->scoefs + 128*4, *S34 = s->scoefs + 128*5;
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const float lambda = s->lambda;
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const float mslambda = FFMIN(1.0f, lambda / 120.f);
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SingleChannelElement *sce0 = &cpe->ch[0];
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@ -789,8 +790,8 @@ static void search_for_ms(AACEncContext *s, ChannelElement *cpe)
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S[i] = M[i]
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- sce1->coeffs[start+(w+w2)*128+i];
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}
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abs_pow34_v(M34, M, sce0->ics.swb_sizes[g]);
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abs_pow34_v(S34, S, sce0->ics.swb_sizes[g]);
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s->abs_pow34(M34, M, sce0->ics.swb_sizes[g]);
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s->abs_pow34(S34, S, sce0->ics.swb_sizes[g]);
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for (i = 0; i < sce0->ics.swb_sizes[g]; i++ ) {
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Mmax = FFMAX(Mmax, M34[i]);
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Smax = FFMAX(Smax, S34[i]);
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@ -833,10 +834,10 @@ static void search_for_ms(AACEncContext *s, ChannelElement *cpe)
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- sce1->coeffs[start+(w+w2)*128+i];
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}
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abs_pow34_v(L34, sce0->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
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abs_pow34_v(R34, sce1->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
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abs_pow34_v(M34, M, sce0->ics.swb_sizes[g]);
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abs_pow34_v(S34, S, sce0->ics.swb_sizes[g]);
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s->abs_pow34(L34, sce0->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
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s->abs_pow34(R34, sce1->coeffs+start+(w+w2)*128, sce0->ics.swb_sizes[g]);
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s->abs_pow34(M34, M, sce0->ics.swb_sizes[g]);
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s->abs_pow34(S34, S, sce0->ics.swb_sizes[g]);
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dist1 += quantize_band_cost(s, &sce0->coeffs[start + (w+w2)*128],
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L34,
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sce0->ics.swb_sizes[g],
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@ -70,7 +70,7 @@ static void codebook_trellis_rate(AACEncContext *s, SingleChannelElement *sce,
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float next_minbits = INFINITY;
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int next_mincb = 0;
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abs_pow34_v(s->scoefs, sce->coeffs, 1024);
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s->abs_pow34(s->scoefs, sce->coeffs, 1024);
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start = win*128;
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for (cb = 0; cb < CB_TOT_ALL; cb++) {
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path[0][cb].cost = run_bits+4;
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@ -291,7 +291,7 @@ static void search_for_quantizers_twoloop(AVCodecContext *avctx,
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if (!allz)
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return;
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abs_pow34_v(s->scoefs, sce->coeffs, 1024);
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s->abs_pow34(s->scoefs, sce->coeffs, 1024);
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ff_quantize_band_cost_cache_init(s);
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for (i = 0; i < sizeof(minsf) / sizeof(minsf[0]); ++i)
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@ -1033,6 +1033,12 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
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ff_lpc_init(&s->lpc, 2*avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON);
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s->random_state = 0x1f2e3d4c;
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s->abs_pow34 = abs_pow34_v;
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s->quant_bands = quantize_bands;
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if (ARCH_X86)
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ff_aac_dsp_init_x86(s);
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if (HAVE_MIPSDSP)
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ff_aac_coder_init_mips(s);
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@ -127,11 +127,17 @@ typedef struct AACEncContext {
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uint16_t quantize_band_cost_cache_generation;
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AACQuantizeBandCostCacheEntry quantize_band_cost_cache[256][128]; ///< memoization area for quantize_band_cost
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void (*abs_pow34)(float *out, const float *in, const int size);
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void (*quant_bands)(int *out, const float *in, const float *scaled,
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int size, int is_signed, int maxval, const float Q34,
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const float rounding);
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struct {
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float *samples;
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} buffer;
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} AACEncContext;
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void ff_aac_dsp_init_x86(AACEncContext *s);
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void ff_aac_coder_init_mips(AACEncContext *c);
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void ff_quantize_band_cost_cache_init(struct AACEncContext *s);
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@ -59,9 +59,9 @@ struct AACISError ff_aac_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
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float minthr = FFMIN(band0->threshold, band1->threshold);
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for (i = 0; i < sce0->ics.swb_sizes[g]; i++)
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IS[i] = (L[start+(w+w2)*128+i] + phase*R[start+(w+w2)*128+i])*sqrt(ener0/ener01);
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abs_pow34_v(L34, &L[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
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abs_pow34_v(R34, &R[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
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abs_pow34_v(I34, IS, sce0->ics.swb_sizes[g]);
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s->abs_pow34(L34, &L[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
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s->abs_pow34(R34, &R[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
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s->abs_pow34(I34, IS, sce0->ics.swb_sizes[g]);
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maxval = find_max_val(1, sce0->ics.swb_sizes[g], I34);
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is_band_type = find_min_book(maxval, is_sf_idx);
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dist1 += quantize_band_cost(s, &L[start + (w+w2)*128], L34,
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@ -190,8 +190,8 @@ void ff_aac_search_for_ltp(AACEncContext *s, SingleChannelElement *sce,
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FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
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for (i = 0; i < sce->ics.swb_sizes[g]; i++)
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PCD[i] = sce->coeffs[start+(w+w2)*128+i] - sce->lcoeffs[start+(w+w2)*128+i];
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abs_pow34_v(C34, &sce->coeffs[start+(w+w2)*128], sce->ics.swb_sizes[g]);
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abs_pow34_v(PCD34, PCD, sce->ics.swb_sizes[g]);
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s->abs_pow34(C34, &sce->coeffs[start+(w+w2)*128], sce->ics.swb_sizes[g]);
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s->abs_pow34(PCD34, PCD, sce->ics.swb_sizes[g]);
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dist1 += quantize_band_cost(s, &sce->coeffs[start+(w+w2)*128], C34, sce->ics.swb_sizes[g],
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sce->sf_idx[(w+w2)*16+g], sce->band_type[(w+w2)*16+g],
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s->lambda/band->threshold, INFINITY, &bits_tmp1, NULL, 0);
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@ -270,7 +270,7 @@ void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
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continue;
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/* Normal coefficients */
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abs_pow34_v(O34, &sce->coeffs[start_coef], num_coeffs);
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s->abs_pow34(O34, &sce->coeffs[start_coef], num_coeffs);
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dist1 = quantize_and_encode_band_cost(s, NULL, &sce->coeffs[start_coef], NULL,
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O34, num_coeffs, sce->sf_idx[sfb],
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cb_n, s->lambda / band->threshold, INFINITY, &cost1, NULL, 0);
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@ -279,7 +279,7 @@ void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
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/* Encoded coefficients - needed for #bits, band type and quant. error */
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for (i = 0; i < num_coeffs; i++)
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SENT[i] = sce->coeffs[start_coef + i] - sce->prcoeffs[start_coef + i];
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abs_pow34_v(S34, SENT, num_coeffs);
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s->abs_pow34(S34, SENT, num_coeffs);
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if (cb_n < RESERVED_BT)
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cb_p = av_clip(find_min_book(find_max_val(1, num_coeffs, S34), sce->sf_idx[sfb]), cb_min, cb_max);
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else
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@ -291,7 +291,7 @@ void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
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/* Reconstructed coefficients - needed for distortion measurements */
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for (i = 0; i < num_coeffs; i++)
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sce->prcoeffs[start_coef + i] += QERR[i] != 0.0f ? (sce->prcoeffs[start_coef + i] - QERR[i]) : 0.0f;
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abs_pow34_v(P34, &sce->prcoeffs[start_coef], num_coeffs);
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s->abs_pow34(P34, &sce->prcoeffs[start_coef], num_coeffs);
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if (cb_n < RESERVED_BT)
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cb_p = av_clip(find_min_book(find_max_val(1, num_coeffs, P34), sce->sf_idx[sfb]), cb_min, cb_max);
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else
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@ -74,10 +74,10 @@ static av_always_inline float quantize_and_encode_band_cost_template(
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return cost * lambda;
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}
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if (!scaled) {
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abs_pow34_v(s->scoefs, in, size);
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s->abs_pow34(s->scoefs, in, size);
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scaled = s->scoefs;
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}
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quantize_bands(s->qcoefs, in, scaled, size, Q34, !BT_UNSIGNED, aac_cb_maxval[cb], ROUNDING);
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s->quant_bands(s->qcoefs, in, scaled, size, !BT_UNSIGNED, aac_cb_maxval[cb], Q34, ROUNDING);
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if (BT_UNSIGNED) {
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off = 0;
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} else {
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@ -63,7 +63,7 @@ static inline int quant(float coef, const float Q, const float rounding)
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}
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static inline void quantize_bands(int *out, const float *in, const float *scaled,
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int size, float Q34, int is_signed, int maxval,
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int size, int is_signed, int maxval, const float Q34,
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const float rounding)
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{
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int i;
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@ -42,6 +42,7 @@ OBJS-$(CONFIG_XMM_CLOBBER_TEST) += x86/w64xmmtest.o
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# decoders/encoders
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OBJS-$(CONFIG_AAC_DECODER) += x86/aacpsdsp_init.o \
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x86/sbrdsp_init.o
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OBJS-$(CONFIG_AAC_ENCODER) += x86/aacencdsp_init.o
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OBJS-$(CONFIG_ADPCM_G722_DECODER) += x86/g722dsp_init.o
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OBJS-$(CONFIG_ADPCM_G722_ENCODER) += x86/g722dsp_init.o
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OBJS-$(CONFIG_ALAC_DECODER) += x86/alacdsp_init.o
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@ -132,6 +133,7 @@ YASM-OBJS-$(CONFIG_VP8DSP) += x86/vp8dsp.o \
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# decoders/encoders
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YASM-OBJS-$(CONFIG_AAC_DECODER) += x86/aacpsdsp.o \
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x86/sbrdsp.o
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YASM-OBJS-$(CONFIG_AAC_ENCODER) += x86/aacencdsp.o
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YASM-OBJS-$(CONFIG_ADPCM_G722_DECODER) += x86/g722dsp.o
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YASM-OBJS-$(CONFIG_ADPCM_G722_ENCODER) += x86/g722dsp.o
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YASM-OBJS-$(CONFIG_ALAC_DECODER) += x86/alacdsp.o
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86
libavcodec/x86/aacencdsp.asm
Normal file
86
libavcodec/x86/aacencdsp.asm
Normal file
@ -0,0 +1,86 @@
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;******************************************************************************
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;* SIMD optimized AAC encoder DSP functions
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;*
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;* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_RODATA
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float_abs_mask: times 4 dd 0x7fffffff
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SECTION .text
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;*******************************************************************
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;void ff_abs_pow34(float *out, const float *in, const int size);
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;*******************************************************************
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INIT_XMM sse
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cglobal abs_pow34, 3, 3, 3, out, in, size
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mova m2, [float_abs_mask]
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shl sizeq, 2
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add inq, sizeq
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add outq, sizeq
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neg sizeq
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.loop:
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andps m0, m2, [inq+sizeq]
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sqrtps m1, m0
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mulps m0, m1
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sqrtps m0, m0
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mova [outq+sizeq], m0
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add sizeq, mmsize
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jl .loop
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RET
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;*******************************************************************
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;void ff_aac_quantize_bands(int *out, const float *in, const float *scaled,
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; int size, int is_signed, int maxval, const float Q34,
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; const float rounding)
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;*******************************************************************
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INIT_XMM sse2
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cglobal aac_quantize_bands, 5, 5, 6, out, in, scaled, size, is_signed, maxval, Q34, rounding
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%if UNIX64 == 0
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movss m0, Q34m
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movss m1, roundingm
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cvtsi2ss m3, dword maxvalm
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%else
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cvtsi2ss m3, maxvald
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%endif
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shufps m0, m0, 0
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shufps m1, m1, 0
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shufps m3, m3, 0
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shl is_signedd, 31
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movd m4, is_signedd
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shufps m4, m4, 0
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shl sized, 2
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add inq, sizeq
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add outq, sizeq
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add scaledq, sizeq
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neg sizeq
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.loop:
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mulps m2, m0, [scaledq+sizeq]
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addps m2, m1
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minps m2, m3
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andps m5, m4, [inq+sizeq]
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orps m2, m5
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cvttps2dq m2, m2
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mova [outq+sizeq], m2
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add sizeq, mmsize
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jl .loop
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RET
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43
libavcodec/x86/aacencdsp_init.c
Normal file
43
libavcodec/x86/aacencdsp_init.c
Normal file
@ -0,0 +1,43 @@
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/*
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* AAC encoder assembly optimizations
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* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "libavutil/float_dsp.h"
|
||||
#include "libavutil/x86/cpu.h"
|
||||
#include "libavcodec/aacenc.h"
|
||||
|
||||
void ff_abs_pow34_sse(float *out, const float *in, const int size);
|
||||
|
||||
void ff_aac_quantize_bands_sse2(int *out, const float *in, const float *scaled,
|
||||
int size, int is_signed, int maxval, const float Q34,
|
||||
const float rounding);
|
||||
|
||||
av_cold void ff_aac_dsp_init_x86(AACEncContext *s)
|
||||
{
|
||||
int cpu_flags = av_get_cpu_flags();
|
||||
|
||||
if (EXTERNAL_SSE(cpu_flags))
|
||||
s->abs_pow34 = ff_abs_pow34_sse;
|
||||
|
||||
if (EXTERNAL_SSE2(cpu_flags))
|
||||
s->quant_bands = ff_aac_quantize_bands_sse2;
|
||||
}
|
Loading…
Reference in New Issue
Block a user