Support for Signal calls.

Merge in RedPhone // FREEBIE
2025-08-25 17:37:57 +00:00 · 2015-09-09 13:54:29 -07:00
parent 3d4ae60d81
commit d83a3d71bc
2585 changed files with 803492 additions and 45 deletions
--- a/jni/webrtc/modules/audio_coding/codecs/ilbc/enh_upsample.c
+++ b/jni/webrtc/modules/audio_coding/codecs/ilbc/enh_upsample.c
@@ -0,0 +1,110 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/******************************************************************
+
+ iLBC Speech Coder ANSI-C Source Code
+
+ WebRtcIlbcfix_EnhUpsample.c
+
+******************************************************************/
+
+#include "defines.h"
+#include "constants.h"
+
+/*----------------------------------------------------------------*
+ * upsample finite array assuming zeros outside bounds
+ *---------------------------------------------------------------*/
+
+void WebRtcIlbcfix_EnhUpsample(
+    int32_t *useq1, /* (o) upsampled output sequence */
+    int16_t *seq1 /* (i) unupsampled sequence */
+                                ){
+  int j;
+  int32_t *pu1, *pu11;
+  int16_t *ps, *w16tmp;
+  const int16_t *pp;
+
+  /* filtering: filter overhangs left side of sequence */
+  pu1=useq1;
+  for (j=0;j<ENH_UPS0; j++) {
+    pu11=pu1;
+    /* i = 2 */
+    pp=WebRtcIlbcfix_kEnhPolyPhaser[j]+1;
+    ps=seq1+2;
+    (*pu11) = WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    pu11+=ENH_UPS0;
+    /* i = 3 */
+    pp=WebRtcIlbcfix_kEnhPolyPhaser[j]+1;
+    ps=seq1+3;
+    (*pu11) = WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    pu11+=ENH_UPS0;
+    /* i = 4 */
+    pp=WebRtcIlbcfix_kEnhPolyPhaser[j]+1;
+    ps=seq1+4;
+    (*pu11) = WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--,*pp++);
+    pu1++;
+  }
+
+  /* filtering: simple convolution=inner products
+     (not needed since the sequence is so short)
+  */
+
+  /* filtering: filter overhangs right side of sequence */
+
+  /* Code with loops, which is equivivalent to the expanded version below
+
+     filterlength = 5;
+     hf1 = 2;
+     for(j=0;j<ENH_UPS0; j++){
+     pu = useq1 + (filterlength-hfl)*ENH_UPS0 + j;
+     for(i=1; i<=hfl; i++){
+     *pu=0;
+     pp = polyp[j]+i;
+     ps = seq1+dim1-1;
+     for(k=0;k<filterlength-i;k++) {
+     *pu += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+     }
+     pu+=ENH_UPS0;
+     }
+     }
+  */
+  pu1 = useq1 + 12;
+  w16tmp = seq1+4;
+  for (j=0;j<ENH_UPS0; j++) {
+    pu11 = pu1;
+    /* i = 1 */
+    pp = WebRtcIlbcfix_kEnhPolyPhaser[j]+2;
+    ps = w16tmp;
+    (*pu11) = WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    pu11+=ENH_UPS0;
+    /* i = 2 */
+    pp = WebRtcIlbcfix_kEnhPolyPhaser[j]+3;
+    ps = w16tmp;
+    (*pu11) = WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    (*pu11) += WEBRTC_SPL_MUL_16_16(*ps--, *pp++);
+    pu11+=ENH_UPS0;
+
+    pu1++;
+  }
+}