]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/aacdec.c
projects / ffmpeg / blobdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | inline | side by side
x86: h264qpel: Move stray comment to the right spot and clarify it
[ffmpeg] / libavcodec / aacdec.c
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index d2a31cae0b148e097e44d2b55a912d1098aba48d..5afc9b820e0d94d50fc913013c22b3fe7c588183 100644 (file)
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -181,7 +181,7 @@ static int frame_configure_elements(AVCodecContext *avctx)
 
     /* get output buffer */
     ac->frame.nb_samples = 2048;
-    if ((ret = avctx->get_buffer(avctx, &ac->frame)) < 0) {
+    if ((ret = ff_get_buffer(avctx, &ac->frame)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;
     }
@@ -787,7 +787,8 @@ static int decode_audio_specific_config(AACContext *ac,
  */
 static av_always_inline int lcg_random(int previous_val)
 {
-    return previous_val * 1664525 + 1013904223;
+    union { unsigned u; int s; } v = { previous_val * 1664525u + 1013904223 };
+    return v.s;
 }
 
 static av_always_inline void reset_predict_state(PredictorState *ps)
@@ -894,7 +895,6 @@ static av_cold int aac_decode_init(AVCodecContext *avctx)
 
     ff_aac_sbr_init();
 
-    ff_dsputil_init(&ac->dsp, avctx);
     ff_fmt_convert_init(&ac->fmt_conv, avctx);
     avpriv_float_dsp_init(&ac->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
 
@@ -1357,9 +1357,9 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
                         cfo[k] = ac->random_state;
                     }
 
-                    band_energy = ac->dsp.scalarproduct_float(cfo, cfo, off_len);
+                    band_energy = ac->fdsp.scalarproduct_float(cfo, cfo, off_len);
                     scale = sf[idx] / sqrtf(band_energy);
-                    ac->dsp.vector_fmul_scalar(cfo, cfo, scale, off_len);
+                    ac->fdsp.vector_fmul_scalar(cfo, cfo, scale, off_len);
                 }
             } else {
                 const float *vq = ff_aac_codebook_vector_vals[cbt_m1];
@@ -1505,7 +1505,7 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
                             }
                         } while (len -= 2);
 
-                        ac->dsp.vector_fmul_scalar(cfo, cfo, sf[idx], off_len);
+                        ac->fdsp.vector_fmul_scalar(cfo, cfo, sf[idx], off_len);
                     }
                 }
 
@@ -1692,9 +1692,9 @@ static void apply_mid_side_stereo(AACContext *ac, ChannelElement *cpe)
             if (cpe->ms_mask[idx] &&
                     cpe->ch[0].band_type[idx] < NOISE_BT && cpe->ch[1].band_type[idx] < NOISE_BT) {
                 for (group = 0; group < ics->group_len[g]; group++) {
-                    ac->dsp.butterflies_float(ch0 + group * 128 + offsets[i],
-                                              ch1 + group * 128 + offsets[i],
-                                              offsets[i+1] - offsets[i]);
+                    ac->fdsp.butterflies_float(ch0 + group * 128 + offsets[i],
+                                               ch1 + group * 128 + offsets[i],
+                                               offsets[i+1] - offsets[i]);
                 }
             }
         }
@@ -1729,10 +1729,10 @@ static void apply_intensity_stereo(AACContext *ac, ChannelElement *cpe, int ms_p
                         c *= 1 - 2 * cpe->ms_mask[idx];
                     scale = c * sce1->sf[idx];
                     for (group = 0; group < ics->group_len[g]; group++)
-                        ac->dsp.vector_fmul_scalar(coef1 + group * 128 + offsets[i],
-                                                   coef0 + group * 128 + offsets[i],
-                                                   scale,
-                                                   offsets[i + 1] - offsets[i]);
+                        ac->fdsp.vector_fmul_scalar(coef1 + group * 128 + offsets[i],
+                                                    coef0 + group * 128 + offsets[i],
+                                                    scale,
+                                                    offsets[i + 1] - offsets[i]);
                 }
             } else {
                 int bt_run_end = sce1->band_type_run_end[idx];
@@ -2002,7 +2002,7 @@ static void apply_tns(float coef[1024], TemporalNoiseShaping *tns,
     int w, filt, m, i;
     int bottom, top, order, start, end, size, inc;
     float lpc[TNS_MAX_ORDER];
-    float tmp[TNS_MAX_ORDER];
+    float tmp[TNS_MAX_ORDER + 1];
 
     for (w = 0; w < ics->num_windows; w++) {
         bottom = ics->num_swb;
@@ -2066,9 +2066,9 @@ static void windowing_and_mdct_ltp(AACContext *ac, float *out,
         ac->fdsp.vector_fmul(in + 448, in + 448, swindow_prev, 128);
     }
     if (ics->window_sequence[0] != LONG_START_SEQUENCE) {
-        ac->dsp.vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
+        ac->fdsp.vector_fmul_reverse(in + 1024, in + 1024, lwindow, 1024);
     } else {
-        ac->dsp.vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
+        ac->fdsp.vector_fmul_reverse(in + 1024 + 448, in + 1024 + 448, swindow, 128);
         memset(in + 1024 + 576, 0, 448 * sizeof(float));
     }
     ac->mdct_ltp.mdct_calc(&ac->mdct_ltp, out, in);
@@ -2121,17 +2121,17 @@ static void update_ltp(AACContext *ac, SingleChannelElement *sce)
     if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
         memcpy(saved_ltp,       saved, 512 * sizeof(float));
         memset(saved_ltp + 576, 0,     448 * sizeof(float));
-        ac->dsp.vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
+        ac->fdsp.vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
         for (i = 0; i < 64; i++)
             saved_ltp[i + 512] = ac->buf_mdct[1023 - i] * swindow[63 - i];
     } else if (ics->window_sequence[0] == LONG_START_SEQUENCE) {
         memcpy(saved_ltp,       ac->buf_mdct + 512, 448 * sizeof(float));
         memset(saved_ltp + 576, 0,                  448 * sizeof(float));
-        ac->dsp.vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
+        ac->fdsp.vector_fmul_reverse(saved_ltp + 448, ac->buf_mdct + 960,     &swindow[64],      64);
         for (i = 0; i < 64; i++)
             saved_ltp[i + 512] = ac->buf_mdct[1023 - i] * swindow[63 - i];
     } else { // LONG_STOP or ONLY_LONG
-        ac->dsp.vector_fmul_reverse(saved_ltp,       ac->buf_mdct + 512,     &lwindow[512],     512);
+        ac->fdsp.vector_fmul_reverse(saved_ltp,       ac->buf_mdct + 512,     &lwindow[512],     512);
         for (i = 0; i < 512; i++)
             saved_ltp[i + 512] = ac->buf_mdct[1023 - i] * lwindow[511 - i];
     }
@@ -2172,35 +2172,35 @@ static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce)
      */
     if ((ics->window_sequence[1] == ONLY_LONG_SEQUENCE || ics->window_sequence[1] == LONG_STOP_SEQUENCE) &&
             (ics->window_sequence[0] == ONLY_LONG_SEQUENCE || ics->window_sequence[0] == LONG_START_SEQUENCE)) {
-        ac->dsp.vector_fmul_window(    out,               saved,            buf,         lwindow_prev, 512);
+        ac->fdsp.vector_fmul_window(    out,               saved,            buf,         lwindow_prev, 512);
     } else {
-        memcpy(                        out,               saved,            448 * sizeof(float));
+        memcpy(                         out,               saved,            448 * sizeof(float));
 
         if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
-            ac->dsp.vector_fmul_window(out + 448 + 0*128, saved + 448,      buf + 0*128, swindow_prev, 64);
-            ac->dsp.vector_fmul_window(out + 448 + 1*128, buf + 0*128 + 64, buf + 1*128, swindow,      64);
-            ac->dsp.vector_fmul_window(out + 448 + 2*128, buf + 1*128 + 64, buf + 2*128, swindow,      64);
-            ac->dsp.vector_fmul_window(out + 448 + 3*128, buf + 2*128 + 64, buf + 3*128, swindow,      64);
-            ac->dsp.vector_fmul_window(temp,              buf + 3*128 + 64, buf + 4*128, swindow,      64);
-            memcpy(                    out + 448 + 4*128, temp, 64 * sizeof(float));
+            ac->fdsp.vector_fmul_window(out + 448 + 0*128, saved + 448,      buf + 0*128, swindow_prev, 64);
+            ac->fdsp.vector_fmul_window(out + 448 + 1*128, buf + 0*128 + 64, buf + 1*128, swindow,      64);
+            ac->fdsp.vector_fmul_window(out + 448 + 2*128, buf + 1*128 + 64, buf + 2*128, swindow,      64);
+            ac->fdsp.vector_fmul_window(out + 448 + 3*128, buf + 2*128 + 64, buf + 3*128, swindow,      64);
+            ac->fdsp.vector_fmul_window(temp,              buf + 3*128 + 64, buf + 4*128, swindow,      64);
+            memcpy(                     out + 448 + 4*128, temp, 64 * sizeof(float));
         } else {
-            ac->dsp.vector_fmul_window(out + 448,         saved + 448,      buf,         swindow_prev, 64);
-            memcpy(                    out + 576,         buf + 64,         448 * sizeof(float));
+            ac->fdsp.vector_fmul_window(out + 448,         saved + 448,      buf,         swindow_prev, 64);
+            memcpy(                     out + 576,         buf + 64,         448 * sizeof(float));
         }
     }
 
     // buffer update
     if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
-        memcpy(                    saved,       temp + 64,         64 * sizeof(float));
-        ac->dsp.vector_fmul_window(saved + 64,  buf + 4*128 + 64, buf + 5*128, swindow, 64);
-        ac->dsp.vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, swindow, 64);
-        ac->dsp.vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, swindow, 64);
-        memcpy(                    saved + 448, buf + 7*128 + 64,  64 * sizeof(float));
+        memcpy(                     saved,       temp + 64,         64 * sizeof(float));
+        ac->fdsp.vector_fmul_window(saved + 64,  buf + 4*128 + 64, buf + 5*128, swindow, 64);
+        ac->fdsp.vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, swindow, 64);
+        ac->fdsp.vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, swindow, 64);
+        memcpy(                     saved + 448, buf + 7*128 + 64,  64 * sizeof(float));
     } else if (ics->window_sequence[0] == LONG_START_SEQUENCE) {
-        memcpy(                    saved,       buf + 512,        448 * sizeof(float));
-        memcpy(                    saved + 448, buf + 7*128 + 64,  64 * sizeof(float));
+        memcpy(                     saved,       buf + 512,        448 * sizeof(float));
+        memcpy(                     saved + 448, buf + 7*128 + 64,  64 * sizeof(float));
     } else { // LONG_STOP or ONLY_LONG
-        memcpy(                    saved,       buf + 512,        512 * sizeof(float));
+        memcpy(                     saved,       buf + 512,        512 * sizeof(float));
     }
 }
 
Unnamed repository; edit this file 'description' to name the repository.