[FFmpeg-cvslog] r25621 - trunk/libavcodec/aacpsy.c
alexc
subversion
Mon Nov 1 08:39:32 CET 2010
Author: alexc
Date: Mon Nov 1 08:39:31 2010
New Revision: 25621
Log:
aacenc: cosmetics: Swap spreading_hi/low name to match the 3GPP spec.
Patch by: Nathan Caldwell <saintdev at gmail.com>
Modified:
trunk/libavcodec/aacpsy.c
Modified: trunk/libavcodec/aacpsy.c
==============================================================================
--- trunk/libavcodec/aacpsy.c Mon Nov 1 00:37:15 2010 (r25620)
+++ trunk/libavcodec/aacpsy.c Mon Nov 1 08:39:31 2010 (r25621)
@@ -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
@@ -414,9 +414,9 @@ static void psy_3gpp_analyze(FFPsyContex
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-1]);
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)))
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