[FFmpeg-soc] [soc]: r4938 - amr/amrnbdec.c

[cmcq]

Author: cmcq
Date: Tue Aug  4 02:37:55 2009
New Revision: 4938

Log:
Do excitation emphasis in-place

Modified:
   amr/amrnbdec.c

Modified: amr/amrnbdec.c
==============================================================================
--- amr/amrnbdec.c	Tue Aug  4 02:36:55 2009	(r4937)
+++ amr/amrnbdec.c	Tue Aug  4 02:37:55 2009	(r4938)
@@ -911,7 +911,6 @@ static int synthesis(AMRContext *p, floa
 
     // emphasize pitch vector contribution
     if (p->pitch_gain[4] > 0.5 && !overflow) {
-        float exc_emph[AMR_SUBFRAME_SIZE]; // FIXME: unnecessary tmp buffer
         float energy = ff_energyf(excitation, AMR_SUBFRAME_SIZE);
         float pitch_factor = (p->cur_frame_mode == MODE_122 ? 0.25 : 0.5)
             * FFMIN(p->pitch_gain[4],
@@ -919,9 +918,9 @@ static int synthesis(AMRContext *p, floa
             * p->pitch_gain[4];
 
         for (i = 0; i < AMR_SUBFRAME_SIZE; i++)
-            exc_emph[i] = excitation[i] + pitch_factor * p->pitch_vector[i];
+            excitation[i] += pitch_factor * p->pitch_vector[i];
 
-        ff_set_energyf(excitation, exc_emph, energy, AMR_SUBFRAME_SIZE);
+        ff_set_energyf(excitation, excitation, energy, AMR_SUBFRAME_SIZE);
     }
 
     ff_celp_lp_synthesis_filterf(samples, lpc, excitation, AMR_SUBFRAME_SIZE,