Remove a few if (p) av_free(p) forms

[ffmpeg] / libavcodec / aacpsy.c

diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c
index 77eebb92d783f3fe06e7fbd7e4a4f345596b1b84..a987be0abbe75b22bc4e4fa7a25bb914f4f05cb9 100644 (file)
--- a/libavcodec/aacpsy.c
+++ b/libavcodec/aacpsy.c
@@ -39,8 +39,8 @@
  * constants for 3GPP AAC psychoacoustic model
  * @{
  */
-#define PSY_3GPP_SPREAD_LOW  1.5f // spreading factor for ascending threshold spreading  (15 dB/Bark)
-#define PSY_3GPP_SPREAD_HI   3.0f // spreading factor for descending threshold spreading (30 dB/Bark)
+#define PSY_3GPP_SPREAD_HI   1.5f // spreading factor for ascending threshold spreading  (15 dB/Bark)
+#define PSY_3GPP_SPREAD_LOW  3.0f // spreading factor for descending threshold spreading (30 dB/Bark)
 
 #define PSY_3GPP_RPEMIN      0.01f
 #define PSY_3GPP_RPELEV      2.0f
@@ -404,7 +404,6 @@ static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
             band->energy = 0.0f;
             for (i = 0; i < band_sizes[g]; i++)
                 band->energy += coefs[start+i] * coefs[start+i];
-            band->energy *= 1.0f / (512*512);
             band->thr     = band->energy * 0.001258925f;
             start        += band_sizes[g];
 
@@ -415,9 +414,9 @@ static void psy_3gpp_analyze(FFPsyContext *ctx, int channel,
     for (w = 0; w < wi->num_windows*16; w += 16) {
         AacPsyBand *band = &pch->band[w];
         for (g = 1; g < num_bands; g++)
-            band[g].thr = FFMAX(band[g].thr, band[g-1].thr * coeffs->spread_low[g-1]);
+            band[g].thr = FFMAX(band[g].thr, band[g-1].thr * coeffs->spread_hi [g]);
         for (g = num_bands - 2; g >= 0; g--)
-            band[g].thr = FFMAX(band[g].thr, band[g+1].thr * coeffs->spread_hi [g]);
+            band[g].thr = FFMAX(band[g].thr, band[g+1].thr * coeffs->spread_low[g]);
         for (g = 0; g < num_bands; g++) {
             band[g].thr_quiet = band[g].thr = FFMAX(band[g].thr, coeffs->ath[g]);
             if (!(wi->window_type[0] == LONG_STOP_SEQUENCE || (wi->window_type[1] == LONG_START_SEQUENCE && !w)))