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ffmpeg.wasm-core
Commit 3ea12f65 authored by Nathan Caldwell's avatar Nathan Caldwell Committed by Alex Converse
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aacenc: cosmetics: Swap spreading_hi/low name to match the 3GPP spec. 

Patch by: Nathan Caldwell <saintdev@gmail.com>

Originally committed as revision 25621 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent a4ece893
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Showing with 4 additions and 4 deletions
libavcodec/aacpsy.c
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......@@ -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(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-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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