gifdec: port to bytestream2 API

[ffmpeg] / libavcodec / aacsbr.c

diff --git a/libavcodec/aacsbr.c b/libavcodec/aacsbr.c
index ceff2eaa5b01cfa7e8ccd0ca2ba6a7223140d271..714e48c1ffe1ac44de1474a4ca09226f933f7ed2 100644 (file)
--- a/libavcodec/aacsbr.c
+++ b/libavcodec/aacsbr.c
@@ -76,7 +76,6 @@ enum {
 static VLC vlc_sbr[10];
 static const int8_t vlc_sbr_lav[10] =
     { 60, 60, 24, 24, 31, 31, 12, 12, 31, 12 };
-static const DECLARE_ALIGNED(16, float, zero64)[64];
 
 #define SBR_INIT_VLC_STATIC(num, size) \
     INIT_VLC_STATIC(&vlc_sbr[num], 9, sbr_tmp[num].table_size / sbr_tmp[num].elem_size,     \
@@ -142,7 +141,6 @@ static void sbr_turnoff(SpectralBandReplication *sbr) {
 
 av_cold void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr)
 {
-    float mdct_scale;
     if(sbr->mdct.mdct_bits)
         return;
     sbr->kx[0] = sbr->kx[1];
@@ -152,9 +150,8 @@ av_cold void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr)
     /* SBR requires samples to be scaled to +/-32768.0 to work correctly.
      * mdct scale factors are adjusted to scale up from +/-1.0 at analysis
      * and scale back down at synthesis. */
-    mdct_scale = ac->avctx->sample_fmt == AV_SAMPLE_FMT_FLT ? 32768.0f : 1.0f;
-    ff_mdct_init(&sbr->mdct,     7, 1, 1.0 / (64 * mdct_scale));
-    ff_mdct_init(&sbr->mdct_ana, 7, 1, -2.0 * mdct_scale);
+    ff_mdct_init(&sbr->mdct,     7, 1, 1.0 / (64 * 32768.0));
+    ff_mdct_init(&sbr->mdct_ana, 7, 1, -2.0 * 32768.0);
     ff_ps_ctx_init(&sbr->ps);
     ff_sbrdsp_init(&sbr->dsp);
 }
@@ -340,9 +337,6 @@ static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
     } else
         temp = 5000;
 
-    start_min = ((temp << 7) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
-    stop_min  = ((temp << 8) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
-
     switch (sbr->sample_rate) {
     case 16000:
         sbr_offset_ptr = sbr_offset[0];
@@ -368,6 +362,9 @@ static int sbr_make_f_master(AACContext *ac, SpectralBandReplication *sbr,
         return -1;
     }
 
+    start_min = ((temp << 7) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
+    stop_min  = ((temp << 8) + (sbr->sample_rate >> 1)) / sbr->sample_rate;
+
     sbr->k[0] = start_min + sbr_offset_ptr[spectrum->bs_start_freq];
 
     if (spectrum->bs_stop_freq < 14) {
@@ -1161,10 +1158,9 @@ static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
  */
 static void sbr_qmf_analysis(DSPContext *dsp, FFTContext *mdct,
                              SBRDSPContext *sbrdsp, const float *in, float *x,
-                             float z[320], float W[2][32][32][2])
+                             float z[320], float W[2][32][32][2], int buf_idx)
 {
     int i;
-    memcpy(W[0], W[1], sizeof(W[0]));
     memcpy(x    , x+1024, (320-32)*sizeof(x[0]));
     memcpy(x+288, in,         1024*sizeof(x[0]));
     for (i = 0; i < 32; i++) { // numTimeSlots*RATE = 16*2 as 960 sample frames
@@ -1173,7 +1169,7 @@ static void sbr_qmf_analysis(DSPContext *dsp, FFTContext *mdct,
         sbrdsp->sum64x5(z);
         sbrdsp->qmf_pre_shuffle(z);
         mdct->imdct_half(mdct, z, z+64);
-        sbrdsp->qmf_post_shuffle(W[1][i], z);
+        sbrdsp->qmf_post_shuffle(W[buf_idx][i], z);
         x += 32;
     }
 }
@@ -1183,7 +1179,7 @@ static void sbr_qmf_analysis(DSPContext *dsp, FFTContext *mdct,
  * (14496-3 sp04 p206)
  */
 static void sbr_qmf_synthesis(DSPContext *dsp, FFTContext *mdct,
-                              SBRDSPContext *sbrdsp,
+                              SBRDSPContext *sbrdsp, AVFloatDSPContext *fdsp,
                               float *out, float X[2][38][64],
                               float mdct_buf[2][64],
                               float *v0, int *v_off, const unsigned int div)
@@ -1214,7 +1210,7 @@ static void sbr_qmf_synthesis(DSPContext *dsp, FFTContext *mdct,
             mdct->imdct_half(mdct, mdct_buf[1], X[1][i]);
             sbrdsp->qmf_deint_bfly(v, mdct_buf[1], mdct_buf[0]);
         }
-        dsp->vector_fmul_add(out, v                , sbr_qmf_window               , zero64, 64 >> div);
+        fdsp->vector_fmul   (out, v                , sbr_qmf_window                       , 64 >> div);
         dsp->vector_fmul_add(out, v + ( 192 >> div), sbr_qmf_window + ( 64 >> div), out   , 64 >> div);
         dsp->vector_fmul_add(out, v + ( 256 >> div), sbr_qmf_window + (128 >> div), out   , 64 >> div);
         dsp->vector_fmul_add(out, v + ( 448 >> div), sbr_qmf_window + (192 >> div), out   , 64 >> div);
@@ -1309,7 +1305,8 @@ static void sbr_chirp(SpectralBandReplication *sbr, SBRData *ch_data)
 
 /// Generate the subband filtered lowband
 static int sbr_lf_gen(AACContext *ac, SpectralBandReplication *sbr,
-                      float X_low[32][40][2], const float W[2][32][32][2])
+                      float X_low[32][40][2], const float W[2][32][32][2],
+                      int buf_idx)
 {
     int i, k;
     const int t_HFGen = 8;
@@ -1317,14 +1314,15 @@ static int sbr_lf_gen(AACContext *ac, SpectralBandReplication *sbr,
     memset(X_low, 0, 32*sizeof(*X_low));
     for (k = 0; k < sbr->kx[1]; k++) {
         for (i = t_HFGen; i < i_f + t_HFGen; i++) {
-            X_low[k][i][0] = W[1][i - t_HFGen][k][0];
-            X_low[k][i][1] = W[1][i - t_HFGen][k][1];
+            X_low[k][i][0] = W[buf_idx][i - t_HFGen][k][0];
+            X_low[k][i][1] = W[buf_idx][i - t_HFGen][k][1];
         }
     }
+    buf_idx = 1-buf_idx;
     for (k = 0; k < sbr->kx[0]; k++) {
         for (i = 0; i < t_HFGen; i++) {
-            X_low[k][i][0] = W[0][i + i_f - t_HFGen][k][0];
-            X_low[k][i][1] = W[0][i + i_f - t_HFGen][k][1];
+            X_low[k][i][0] = W[buf_idx][i + i_f - t_HFGen][k][0];
+            X_low[k][i][1] = W[buf_idx][i + i_f - t_HFGen][k][1];
         }
     }
     return 0;
@@ -1672,8 +1670,8 @@ void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
         /* decode channel */
         sbr_qmf_analysis(&ac->dsp, &sbr->mdct_ana, &sbr->dsp, ch ? R : L, sbr->data[ch].analysis_filterbank_samples,
                          (float*)sbr->qmf_filter_scratch,
-                         sbr->data[ch].W);
-        sbr_lf_gen(ac, sbr, sbr->X_low, sbr->data[ch].W);
+                         sbr->data[ch].W, sbr->data[ch].Ypos);
+        sbr_lf_gen(ac, sbr, sbr->X_low, sbr->data[ch].W, sbr->data[ch].Ypos);
         sbr->data[ch].Ypos ^= 1;
         if (sbr->start) {
             sbr_hf_inverse_filter(&sbr->dsp, sbr->alpha0, sbr->alpha1, sbr->X_low, sbr->k[0]);
@@ -1709,12 +1707,14 @@ void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
         nch = 2;
     }
 
-    sbr_qmf_synthesis(&ac->dsp, &sbr->mdct, &sbr->dsp, L, sbr->X[0], sbr->qmf_filter_scratch,
+    sbr_qmf_synthesis(&ac->dsp, &sbr->mdct, &sbr->dsp, &ac->fdsp,
+                      L, sbr->X[0], sbr->qmf_filter_scratch,
                       sbr->data[0].synthesis_filterbank_samples,
                       &sbr->data[0].synthesis_filterbank_samples_offset,
                       downsampled);
     if (nch == 2)
-        sbr_qmf_synthesis(&ac->dsp, &sbr->mdct, &sbr->dsp, R, sbr->X[1], sbr->qmf_filter_scratch,
+        sbr_qmf_synthesis(&ac->dsp, &sbr->mdct, &sbr->dsp, &ac->fdsp,
+                          R, sbr->X[1], sbr->qmf_filter_scratch,
                           sbr->data[1].synthesis_filterbank_samples,
                           &sbr->data[1].synthesis_filterbank_samples_offset,
                           downsampled);