Added G.722 codec from the WebRTC code.
git-svn-id: http://yate.null.ro/svn/yate/trunk@6363 acf43c95-373e-0410-b603-e72c3f656dc1divo
paulc
parent
2066fb6e37
commit
828ea4ddfa
17
configure.ac
17
configure.ac
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@ -1082,6 +1082,23 @@ fi
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AC_SUBST(HAVE_ISAC)
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AC_SUBST(ISAC_INC)
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HAVE_G722WR=no
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G722WR_INC=""
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AC_ARG_ENABLE(g722-webrtc,AC_HELP_STRING([--enable-g722-webrtc],[Enable G.722 webrtc codec (default: yes)]),want_g722_webrtc=$enableval,want_g722_webrtc=yes)
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if [[ "x$want_g722_webrtc" = "xyes" ]]; then
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AC_MSG_CHECKING([for G.722 miniwebrtc in libs])
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basedir=`cd "$srcdir" && pwd`
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incg722="libs/miniwebrtc/audio/coding_g722"
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if [[ -f "$basedir/$incg722/g722_interface.h" ]]; then
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HAVE_G722WR=yes
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basedir=`echo "$basedir" | sed 's/\([[^\]]\)\([[[:space:]\$\"'\'']]\)/\1\\\2/g'`
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G722WR_INC="-I$basedir/$incg722"
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fi
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AC_MSG_RESULT([$HAVE_G722WR])
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fi
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AC_SUBST(HAVE_G722WR)
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AC_SUBST(G722WR_INC)
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HAVE_SPEEX=no
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SPEEX_INC=""
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SPEEX_LIB="-lspeex"
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@ -58,6 +58,9 @@ OBJS := audio/common/resampler/resampler.o \
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audio/common/vad/vad_gmm.o \
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audio/common/vad/vad_sp.o \
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audio/common/vad/webrtc_vad.o \
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audio/coding_g722/g722_decode.o \
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audio/coding_g722/g722_encode.o \
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audio/coding_g722/g722_interface.o \
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audio/coding_isac/fix/arith_routines.o \
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audio/coding_isac/fix/arith_routines_hist.o \
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audio/coding_isac/fix/arith_routines_logist.o \
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@ -0,0 +1,408 @@
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/*
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* SpanDSP - a series of DSP components for telephony
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*
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* g722_decode.c - The ITU G.722 codec, decode part.
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2005 Steve Underwood
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*
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* Despite my general liking of the GPL, I place my own contributions
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* to this code in the public domain for the benefit of all mankind -
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* even the slimy ones who might try to proprietize my work and use it
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* to my detriment.
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*
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* Based in part on a single channel G.722 codec which is:
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*
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* Copyright (c) CMU 1993
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* Computer Science, Speech Group
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* Chengxiang Lu and Alex Hauptmann
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*
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* $Id: g722_decode.c,v 1.15 2006/07/07 16:37:49 steveu Exp $
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*
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* Modifications for WebRtc, 2011/04/28, by tlegrand:
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* -Removed usage of inttypes.h and tgmath.h
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* -Changed to use WebRtc types
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* -Changed __inline__ to __inline
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* -Added saturation check on output
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*/
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/*! \file */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <memory.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "g722_enc_dec.h"
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#include "typedefs.h"
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#if !defined(FALSE)
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#define FALSE 0
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#endif
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#if !defined(TRUE)
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#define TRUE (!FALSE)
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#endif
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static __inline int16_t saturate(int32_t amp)
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{
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int16_t amp16;
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/* Hopefully this is optimised for the common case - not clipping */
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amp16 = (int16_t) amp;
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if (amp == amp16)
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return amp16;
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if (amp > WEBRTC_INT16_MAX)
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return WEBRTC_INT16_MAX;
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return WEBRTC_INT16_MIN;
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}
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/*- End of function --------------------------------------------------------*/
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static void block4(G722DecoderState *s, int band, int d);
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static void block4(G722DecoderState *s, int band, int d)
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{
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int wd1;
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int wd2;
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int wd3;
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int i;
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/* Block 4, RECONS */
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s->band[band].d[0] = d;
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s->band[band].r[0] = saturate(s->band[band].s + d);
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/* Block 4, PARREC */
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s->band[band].p[0] = saturate(s->band[band].sz + d);
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/* Block 4, UPPOL2 */
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for (i = 0; i < 3; i++)
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s->band[band].sg[i] = s->band[band].p[i] >> 15;
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wd1 = saturate(s->band[band].a[1] << 2);
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wd2 = (s->band[band].sg[0] == s->band[band].sg[1]) ? -wd1 : wd1;
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if (wd2 > 32767)
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wd2 = 32767;
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wd3 = (s->band[band].sg[0] == s->band[band].sg[2]) ? 128 : -128;
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wd3 += (wd2 >> 7);
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wd3 += (s->band[band].a[2]*32512) >> 15;
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if (wd3 > 12288)
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wd3 = 12288;
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else if (wd3 < -12288)
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wd3 = -12288;
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s->band[band].ap[2] = wd3;
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/* Block 4, UPPOL1 */
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s->band[band].sg[0] = s->band[band].p[0] >> 15;
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s->band[band].sg[1] = s->band[band].p[1] >> 15;
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wd1 = (s->band[band].sg[0] == s->band[band].sg[1]) ? 192 : -192;
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wd2 = (s->band[band].a[1]*32640) >> 15;
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s->band[band].ap[1] = saturate(wd1 + wd2);
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wd3 = saturate(15360 - s->band[band].ap[2]);
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if (s->band[band].ap[1] > wd3)
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s->band[band].ap[1] = wd3;
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else if (s->band[band].ap[1] < -wd3)
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s->band[band].ap[1] = -wd3;
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/* Block 4, UPZERO */
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wd1 = (d == 0) ? 0 : 128;
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s->band[band].sg[0] = d >> 15;
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for (i = 1; i < 7; i++)
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{
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s->band[band].sg[i] = s->band[band].d[i] >> 15;
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wd2 = (s->band[band].sg[i] == s->band[band].sg[0]) ? wd1 : -wd1;
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wd3 = (s->band[band].b[i]*32640) >> 15;
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s->band[band].bp[i] = saturate(wd2 + wd3);
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}
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/* Block 4, DELAYA */
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for (i = 6; i > 0; i--)
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{
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s->band[band].d[i] = s->band[band].d[i - 1];
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s->band[band].b[i] = s->band[band].bp[i];
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}
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for (i = 2; i > 0; i--)
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{
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s->band[band].r[i] = s->band[band].r[i - 1];
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s->band[band].p[i] = s->band[band].p[i - 1];
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s->band[band].a[i] = s->band[band].ap[i];
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}
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/* Block 4, FILTEP */
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wd1 = saturate(s->band[band].r[1] + s->band[band].r[1]);
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wd1 = (s->band[band].a[1]*wd1) >> 15;
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wd2 = saturate(s->band[band].r[2] + s->band[band].r[2]);
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wd2 = (s->band[band].a[2]*wd2) >> 15;
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s->band[band].sp = saturate(wd1 + wd2);
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/* Block 4, FILTEZ */
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s->band[band].sz = 0;
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for (i = 6; i > 0; i--)
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{
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wd1 = saturate(s->band[band].d[i] + s->band[band].d[i]);
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s->band[band].sz += (s->band[band].b[i]*wd1) >> 15;
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}
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s->band[band].sz = saturate(s->band[band].sz);
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/* Block 4, PREDIC */
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s->band[band].s = saturate(s->band[band].sp + s->band[band].sz);
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}
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/*- End of function --------------------------------------------------------*/
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G722DecoderState* WebRtc_g722_decode_init(G722DecoderState* s,
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int rate,
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int options) {
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if (s == NULL)
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{
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if ((s = (G722DecoderState *) malloc(sizeof(*s))) == NULL)
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return NULL;
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}
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memset(s, 0, sizeof(*s));
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if (rate == 48000)
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s->bits_per_sample = 6;
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else if (rate == 56000)
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s->bits_per_sample = 7;
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else
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s->bits_per_sample = 8;
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if ((options & G722_SAMPLE_RATE_8000))
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s->eight_k = TRUE;
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if ((options & G722_PACKED) && s->bits_per_sample != 8)
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s->packed = TRUE;
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else
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s->packed = FALSE;
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s->band[0].det = 32;
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s->band[1].det = 8;
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return s;
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}
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/*- End of function --------------------------------------------------------*/
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int WebRtc_g722_decode_release(G722DecoderState *s)
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{
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free(s);
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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int WebRtc_g722_decode(G722DecoderState *s, int16_t amp[],
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const uint8_t g722_data[], int len)
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{
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static const int wl[8] = {-60, -30, 58, 172, 334, 538, 1198, 3042 };
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static const int rl42[16] = {0, 7, 6, 5, 4, 3, 2, 1,
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7, 6, 5, 4, 3, 2, 1, 0 };
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static const int ilb[32] =
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{
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2048, 2093, 2139, 2186, 2233, 2282, 2332,
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2383, 2435, 2489, 2543, 2599, 2656, 2714,
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2774, 2834, 2896, 2960, 3025, 3091, 3158,
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3228, 3298, 3371, 3444, 3520, 3597, 3676,
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3756, 3838, 3922, 4008
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};
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static const int wh[3] = {0, -214, 798};
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static const int rh2[4] = {2, 1, 2, 1};
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static const int qm2[4] = {-7408, -1616, 7408, 1616};
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static const int qm4[16] =
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{
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0, -20456, -12896, -8968,
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-6288, -4240, -2584, -1200,
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20456, 12896, 8968, 6288,
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4240, 2584, 1200, 0
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};
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static const int qm5[32] =
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{
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-280, -280, -23352, -17560,
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-14120, -11664, -9752, -8184,
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-6864, -5712, -4696, -3784,
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-2960, -2208, -1520, -880,
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23352, 17560, 14120, 11664,
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9752, 8184, 6864, 5712,
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4696, 3784, 2960, 2208,
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1520, 880, 280, -280
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};
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static const int qm6[64] =
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{
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-136, -136, -136, -136,
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-24808, -21904, -19008, -16704,
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-14984, -13512, -12280, -11192,
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-10232, -9360, -8576, -7856,
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-7192, -6576, -6000, -5456,
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-4944, -4464, -4008, -3576,
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-3168, -2776, -2400, -2032,
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-1688, -1360, -1040, -728,
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24808, 21904, 19008, 16704,
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14984, 13512, 12280, 11192,
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10232, 9360, 8576, 7856,
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7192, 6576, 6000, 5456,
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4944, 4464, 4008, 3576,
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3168, 2776, 2400, 2032,
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1688, 1360, 1040, 728,
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432, 136, -432, -136
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};
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static const int qmf_coeffs[12] =
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{
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3, -11, 12, 32, -210, 951, 3876, -805, 362, -156, 53, -11,
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};
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int dlowt;
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int rlow;
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int ihigh;
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int dhigh;
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int rhigh;
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int xout1;
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int xout2;
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int wd1;
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int wd2;
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int wd3;
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int code;
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int outlen;
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int i;
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int j;
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outlen = 0;
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rhigh = 0;
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for (j = 0; j < len; )
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{
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if (s->packed)
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{
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/* Unpack the code bits */
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if (s->in_bits < s->bits_per_sample)
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{
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s->in_buffer |= (g722_data[j++] << s->in_bits);
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s->in_bits += 8;
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}
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code = s->in_buffer & ((1 << s->bits_per_sample) - 1);
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s->in_buffer >>= s->bits_per_sample;
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s->in_bits -= s->bits_per_sample;
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}
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else
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{
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code = g722_data[j++];
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}
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switch (s->bits_per_sample)
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{
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default:
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case 8:
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wd1 = code & 0x3F;
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ihigh = (code >> 6) & 0x03;
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wd2 = qm6[wd1];
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wd1 >>= 2;
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break;
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case 7:
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wd1 = code & 0x1F;
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ihigh = (code >> 5) & 0x03;
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wd2 = qm5[wd1];
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wd1 >>= 1;
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break;
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case 6:
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wd1 = code & 0x0F;
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ihigh = (code >> 4) & 0x03;
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wd2 = qm4[wd1];
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break;
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}
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/* Block 5L, LOW BAND INVQBL */
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wd2 = (s->band[0].det*wd2) >> 15;
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/* Block 5L, RECONS */
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rlow = s->band[0].s + wd2;
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/* Block 6L, LIMIT */
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if (rlow > 16383)
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rlow = 16383;
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else if (rlow < -16384)
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rlow = -16384;
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/* Block 2L, INVQAL */
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wd2 = qm4[wd1];
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dlowt = (s->band[0].det*wd2) >> 15;
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/* Block 3L, LOGSCL */
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wd2 = rl42[wd1];
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wd1 = (s->band[0].nb*127) >> 7;
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wd1 += wl[wd2];
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if (wd1 < 0)
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wd1 = 0;
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else if (wd1 > 18432)
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wd1 = 18432;
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s->band[0].nb = wd1;
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/* Block 3L, SCALEL */
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wd1 = (s->band[0].nb >> 6) & 31;
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wd2 = 8 - (s->band[0].nb >> 11);
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wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2);
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s->band[0].det = wd3 << 2;
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block4(s, 0, dlowt);
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if (!s->eight_k)
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{
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/* Block 2H, INVQAH */
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wd2 = qm2[ihigh];
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dhigh = (s->band[1].det*wd2) >> 15;
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/* Block 5H, RECONS */
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rhigh = dhigh + s->band[1].s;
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/* Block 6H, LIMIT */
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if (rhigh > 16383)
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rhigh = 16383;
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else if (rhigh < -16384)
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rhigh = -16384;
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/* Block 2H, INVQAH */
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wd2 = rh2[ihigh];
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wd1 = (s->band[1].nb*127) >> 7;
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wd1 += wh[wd2];
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if (wd1 < 0)
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wd1 = 0;
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else if (wd1 > 22528)
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wd1 = 22528;
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s->band[1].nb = wd1;
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/* Block 3H, SCALEH */
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wd1 = (s->band[1].nb >> 6) & 31;
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wd2 = 10 - (s->band[1].nb >> 11);
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wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2);
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s->band[1].det = wd3 << 2;
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block4(s, 1, dhigh);
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}
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if (s->itu_test_mode)
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{
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amp[outlen++] = (int16_t) (rlow << 1);
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amp[outlen++] = (int16_t) (rhigh << 1);
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}
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else
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{
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if (s->eight_k)
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{
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amp[outlen++] = (int16_t) (rlow << 1);
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}
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else
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{
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/* Apply the receive QMF */
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for (i = 0; i < 22; i++)
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s->x[i] = s->x[i + 2];
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s->x[22] = rlow + rhigh;
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s->x[23] = rlow - rhigh;
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xout1 = 0;
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xout2 = 0;
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for (i = 0; i < 12; i++)
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{
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xout2 += s->x[2*i]*qmf_coeffs[i];
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xout1 += s->x[2*i + 1]*qmf_coeffs[11 - i];
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}
|
||||
/* We shift by 12 to allow for the QMF filters (DC gain = 4096), less 1
|
||||
to allow for the 15 bit input to the G.722 algorithm. */
|
||||
/* WebRtc, tlegrand: added saturation */
|
||||
amp[outlen++] = saturate(xout1 >> 11);
|
||||
amp[outlen++] = saturate(xout2 >> 11);
|
||||
}
|
||||
}
|
||||
}
|
||||
return outlen;
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
/*- End of file ------------------------------------------------------------*/
|
||||
|
|
@ -0,0 +1,160 @@
|
|||
/*
|
||||
* SpanDSP - a series of DSP components for telephony
|
||||
*
|
||||
* g722.h - The ITU G.722 codec.
|
||||
*
|
||||
* Written by Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* Copyright (C) 2005 Steve Underwood
|
||||
*
|
||||
* Despite my general liking of the GPL, I place my own contributions
|
||||
* to this code in the public domain for the benefit of all mankind -
|
||||
* even the slimy ones who might try to proprietize my work and use it
|
||||
* to my detriment.
|
||||
*
|
||||
* Based on a single channel G.722 codec which is:
|
||||
*
|
||||
***** Copyright (c) CMU 1993 *****
|
||||
* Computer Science, Speech Group
|
||||
* Chengxiang Lu and Alex Hauptmann
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
* Modifications for WebRtc, 2011/04/28, by tlegrand:
|
||||
* -Changed to use WebRtc types
|
||||
* -Added new defines for minimum and maximum values of short int
|
||||
*/
|
||||
|
||||
|
||||
/*! \file */
|
||||
|
||||
#if !defined(_G722_ENC_DEC_H_)
|
||||
#define _G722_ENC_DEC_H_
|
||||
|
||||
#include "typedefs.h"
|
||||
|
||||
/*! \page g722_page G.722 encoding and decoding
|
||||
\section g722_page_sec_1 What does it do?
|
||||
The G.722 module is a bit exact implementation of the ITU G.722 specification for all three
|
||||
specified bit rates - 64000bps, 56000bps and 48000bps. It passes the ITU tests.
|
||||
|
||||
To allow fast and flexible interworking with narrow band telephony, the encoder and decoder
|
||||
support an option for the linear audio to be an 8k samples/second stream. In this mode the
|
||||
codec is considerably faster, and still fully compatible with wideband terminals using G.722.
|
||||
|
||||
\section g722_page_sec_2 How does it work?
|
||||
???.
|
||||
*/
|
||||
|
||||
#define WEBRTC_INT16_MAX 32767
|
||||
#define WEBRTC_INT16_MIN -32768
|
||||
|
||||
enum
|
||||
{
|
||||
G722_SAMPLE_RATE_8000 = 0x0001,
|
||||
G722_PACKED = 0x0002
|
||||
};
|
||||
|
||||
typedef struct
|
||||
{
|
||||
/*! TRUE if the operating in the special ITU test mode, with the band split filters
|
||||
disabled. */
|
||||
int itu_test_mode;
|
||||
/*! TRUE if the G.722 data is packed */
|
||||
int packed;
|
||||
/*! TRUE if encode from 8k samples/second */
|
||||
int eight_k;
|
||||
/*! 6 for 48000kbps, 7 for 56000kbps, or 8 for 64000kbps. */
|
||||
int bits_per_sample;
|
||||
|
||||
/*! Signal history for the QMF */
|
||||
int x[24];
|
||||
|
||||
struct
|
||||
{
|
||||
int s;
|
||||
int sp;
|
||||
int sz;
|
||||
int r[3];
|
||||
int a[3];
|
||||
int ap[3];
|
||||
int p[3];
|
||||
int d[7];
|
||||
int b[7];
|
||||
int bp[7];
|
||||
int sg[7];
|
||||
int nb;
|
||||
int det;
|
||||
} band[2];
|
||||
|
||||
unsigned int in_buffer;
|
||||
int in_bits;
|
||||
unsigned int out_buffer;
|
||||
int out_bits;
|
||||
} G722EncoderState;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
/*! TRUE if the operating in the special ITU test mode, with the band split filters
|
||||
disabled. */
|
||||
int itu_test_mode;
|
||||
/*! TRUE if the G.722 data is packed */
|
||||
int packed;
|
||||
/*! TRUE if decode to 8k samples/second */
|
||||
int eight_k;
|
||||
/*! 6 for 48000kbps, 7 for 56000kbps, or 8 for 64000kbps. */
|
||||
int bits_per_sample;
|
||||
|
||||
/*! Signal history for the QMF */
|
||||
int x[24];
|
||||
|
||||
struct
|
||||
{
|
||||
int s;
|
||||
int sp;
|
||||
int sz;
|
||||
int r[3];
|
||||
int a[3];
|
||||
int ap[3];
|
||||
int p[3];
|
||||
int d[7];
|
||||
int b[7];
|
||||
int bp[7];
|
||||
int sg[7];
|
||||
int nb;
|
||||
int det;
|
||||
} band[2];
|
||||
|
||||
unsigned int in_buffer;
|
||||
int in_bits;
|
||||
unsigned int out_buffer;
|
||||
int out_bits;
|
||||
} G722DecoderState;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
G722EncoderState* WebRtc_g722_encode_init(G722EncoderState* s,
|
||||
int rate,
|
||||
int options);
|
||||
int WebRtc_g722_encode_release(G722EncoderState *s);
|
||||
int WebRtc_g722_encode(G722EncoderState *s,
|
||||
uint8_t g722_data[],
|
||||
const int16_t amp[],
|
||||
int len);
|
||||
|
||||
G722DecoderState* WebRtc_g722_decode_init(G722DecoderState* s,
|
||||
int rate,
|
||||
int options);
|
||||
int WebRtc_g722_decode_release(G722DecoderState *s);
|
||||
int WebRtc_g722_decode(G722DecoderState *s,
|
||||
int16_t amp[],
|
||||
const uint8_t g722_data[],
|
||||
int len);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,434 @@
|
|||
/*
|
||||
* SpanDSP - a series of DSP components for telephony
|
||||
*
|
||||
* g722_encode.c - The ITU G.722 codec, encode part.
|
||||
*
|
||||
* Written by Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* Copyright (C) 2005 Steve Underwood
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Despite my general liking of the GPL, I place my own contributions
|
||||
* to this code in the public domain for the benefit of all mankind -
|
||||
* even the slimy ones who might try to proprietize my work and use it
|
||||
* to my detriment.
|
||||
*
|
||||
* Based on a single channel 64kbps only G.722 codec which is:
|
||||
*
|
||||
***** Copyright (c) CMU 1993 *****
|
||||
* Computer Science, Speech Group
|
||||
* Chengxiang Lu and Alex Hauptmann
|
||||
*
|
||||
* $Id: g722_encode.c,v 1.14 2006/07/07 16:37:49 steveu Exp $
|
||||
*
|
||||
* Modifications for WebRtc, 2011/04/28, by tlegrand:
|
||||
* -Removed usage of inttypes.h and tgmath.h
|
||||
* -Changed to use WebRtc types
|
||||
* -Added option to run encoder bitexact with ITU-T reference implementation
|
||||
*/
|
||||
|
||||
/*! \file */
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
|
||||
#include <memory.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "g722_enc_dec.h"
|
||||
#include "typedefs.h"
|
||||
|
||||
#if !defined(FALSE)
|
||||
#define FALSE 0
|
||||
#endif
|
||||
#if !defined(TRUE)
|
||||
#define TRUE (!FALSE)
|
||||
#endif
|
||||
|
||||
static __inline int16_t saturate(int32_t amp)
|
||||
{
|
||||
int16_t amp16;
|
||||
|
||||
/* Hopefully this is optimised for the common case - not clipping */
|
||||
amp16 = (int16_t) amp;
|
||||
if (amp == amp16)
|
||||
return amp16;
|
||||
if (amp > WEBRTC_INT16_MAX)
|
||||
return WEBRTC_INT16_MAX;
|
||||
return WEBRTC_INT16_MIN;
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
static void block4(G722EncoderState *s, int band, int d)
|
||||
{
|
||||
int wd1;
|
||||
int wd2;
|
||||
int wd3;
|
||||
int i;
|
||||
|
||||
/* Block 4, RECONS */
|
||||
s->band[band].d[0] = d;
|
||||
s->band[band].r[0] = saturate(s->band[band].s + d);
|
||||
|
||||
/* Block 4, PARREC */
|
||||
s->band[band].p[0] = saturate(s->band[band].sz + d);
|
||||
|
||||
/* Block 4, UPPOL2 */
|
||||
for (i = 0; i < 3; i++)
|
||||
s->band[band].sg[i] = s->band[band].p[i] >> 15;
|
||||
wd1 = saturate(s->band[band].a[1] << 2);
|
||||
|
||||
wd2 = (s->band[band].sg[0] == s->band[band].sg[1]) ? -wd1 : wd1;
|
||||
if (wd2 > 32767)
|
||||
wd2 = 32767;
|
||||
wd3 = (wd2 >> 7) + ((s->band[band].sg[0] == s->band[band].sg[2]) ? 128 : -128);
|
||||
wd3 += (s->band[band].a[2]*32512) >> 15;
|
||||
if (wd3 > 12288)
|
||||
wd3 = 12288;
|
||||
else if (wd3 < -12288)
|
||||
wd3 = -12288;
|
||||
s->band[band].ap[2] = wd3;
|
||||
|
||||
/* Block 4, UPPOL1 */
|
||||
s->band[band].sg[0] = s->band[band].p[0] >> 15;
|
||||
s->band[band].sg[1] = s->band[band].p[1] >> 15;
|
||||
wd1 = (s->band[band].sg[0] == s->band[band].sg[1]) ? 192 : -192;
|
||||
wd2 = (s->band[band].a[1]*32640) >> 15;
|
||||
|
||||
s->band[band].ap[1] = saturate(wd1 + wd2);
|
||||
wd3 = saturate(15360 - s->band[band].ap[2]);
|
||||
if (s->band[band].ap[1] > wd3)
|
||||
s->band[band].ap[1] = wd3;
|
||||
else if (s->band[band].ap[1] < -wd3)
|
||||
s->band[band].ap[1] = -wd3;
|
||||
|
||||
/* Block 4, UPZERO */
|
||||
wd1 = (d == 0) ? 0 : 128;
|
||||
s->band[band].sg[0] = d >> 15;
|
||||
for (i = 1; i < 7; i++)
|
||||
{
|
||||
s->band[band].sg[i] = s->band[band].d[i] >> 15;
|
||||
wd2 = (s->band[band].sg[i] == s->band[band].sg[0]) ? wd1 : -wd1;
|
||||
wd3 = (s->band[band].b[i]*32640) >> 15;
|
||||
s->band[band].bp[i] = saturate(wd2 + wd3);
|
||||
}
|
||||
|
||||
/* Block 4, DELAYA */
|
||||
for (i = 6; i > 0; i--)
|
||||
{
|
||||
s->band[band].d[i] = s->band[band].d[i - 1];
|
||||
s->band[band].b[i] = s->band[band].bp[i];
|
||||
}
|
||||
|
||||
for (i = 2; i > 0; i--)
|
||||
{
|
||||
s->band[band].r[i] = s->band[band].r[i - 1];
|
||||
s->band[band].p[i] = s->band[band].p[i - 1];
|
||||
s->band[band].a[i] = s->band[band].ap[i];
|
||||
}
|
||||
|
||||
/* Block 4, FILTEP */
|
||||
wd1 = saturate(s->band[band].r[1] + s->band[band].r[1]);
|
||||
wd1 = (s->band[band].a[1]*wd1) >> 15;
|
||||
wd2 = saturate(s->band[band].r[2] + s->band[band].r[2]);
|
||||
wd2 = (s->band[band].a[2]*wd2) >> 15;
|
||||
s->band[band].sp = saturate(wd1 + wd2);
|
||||
|
||||
/* Block 4, FILTEZ */
|
||||
s->band[band].sz = 0;
|
||||
for (i = 6; i > 0; i--)
|
||||
{
|
||||
wd1 = saturate(s->band[band].d[i] + s->band[band].d[i]);
|
||||
s->band[band].sz += (s->band[band].b[i]*wd1) >> 15;
|
||||
}
|
||||
s->band[band].sz = saturate(s->band[band].sz);
|
||||
|
||||
/* Block 4, PREDIC */
|
||||
s->band[band].s = saturate(s->band[band].sp + s->band[band].sz);
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
G722EncoderState* WebRtc_g722_encode_init(G722EncoderState* s,
|
||||
int rate,
|
||||
int options) {
|
||||
if (s == NULL)
|
||||
{
|
||||
if ((s = (G722EncoderState *) malloc(sizeof(*s))) == NULL)
|
||||
return NULL;
|
||||
}
|
||||
memset(s, 0, sizeof(*s));
|
||||
if (rate == 48000)
|
||||
s->bits_per_sample = 6;
|
||||
else if (rate == 56000)
|
||||
s->bits_per_sample = 7;
|
||||
else
|
||||
s->bits_per_sample = 8;
|
||||
if ((options & G722_SAMPLE_RATE_8000))
|
||||
s->eight_k = TRUE;
|
||||
if ((options & G722_PACKED) && s->bits_per_sample != 8)
|
||||
s->packed = TRUE;
|
||||
else
|
||||
s->packed = FALSE;
|
||||
s->band[0].det = 32;
|
||||
s->band[1].det = 8;
|
||||
return s;
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int WebRtc_g722_encode_release(G722EncoderState *s)
|
||||
{
|
||||
free(s);
|
||||
return 0;
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
/* WebRtc, tlegrand:
|
||||
* Only define the following if bit-exactness with reference implementation
|
||||
* is needed. Will only have any effect if input signal is saturated.
|
||||
*/
|
||||
//#define RUN_LIKE_REFERENCE_G722
|
||||
#ifdef RUN_LIKE_REFERENCE_G722
|
||||
int16_t limitValues (int16_t rl)
|
||||
{
|
||||
|
||||
int16_t yl;
|
||||
|
||||
yl = (rl > 16383) ? 16383 : ((rl < -16384) ? -16384 : rl);
|
||||
|
||||
return (yl);
|
||||
}
|
||||
#endif
|
||||
|
||||
int WebRtc_g722_encode(G722EncoderState *s, uint8_t g722_data[],
|
||||
const int16_t amp[], int len)
|
||||
{
|
||||
static const int q6[32] =
|
||||
{
|
||||
0, 35, 72, 110, 150, 190, 233, 276,
|
||||
323, 370, 422, 473, 530, 587, 650, 714,
|
||||
786, 858, 940, 1023, 1121, 1219, 1339, 1458,
|
||||
1612, 1765, 1980, 2195, 2557, 2919, 0, 0
|
||||
};
|
||||
static const int iln[32] =
|
||||
{
|
||||
0, 63, 62, 31, 30, 29, 28, 27,
|
||||
26, 25, 24, 23, 22, 21, 20, 19,
|
||||
18, 17, 16, 15, 14, 13, 12, 11,
|
||||
10, 9, 8, 7, 6, 5, 4, 0
|
||||
};
|
||||
static const int ilp[32] =
|
||||
{
|
||||
0, 61, 60, 59, 58, 57, 56, 55,
|
||||
54, 53, 52, 51, 50, 49, 48, 47,
|
||||
46, 45, 44, 43, 42, 41, 40, 39,
|
||||
38, 37, 36, 35, 34, 33, 32, 0
|
||||
};
|
||||
static const int wl[8] =
|
||||
{
|
||||
-60, -30, 58, 172, 334, 538, 1198, 3042
|
||||
};
|
||||
static const int rl42[16] =
|
||||
{
|
||||
0, 7, 6, 5, 4, 3, 2, 1, 7, 6, 5, 4, 3, 2, 1, 0
|
||||
};
|
||||
static const int ilb[32] =
|
||||
{
|
||||
2048, 2093, 2139, 2186, 2233, 2282, 2332,
|
||||
2383, 2435, 2489, 2543, 2599, 2656, 2714,
|
||||
2774, 2834, 2896, 2960, 3025, 3091, 3158,
|
||||
3228, 3298, 3371, 3444, 3520, 3597, 3676,
|
||||
3756, 3838, 3922, 4008
|
||||
};
|
||||
static const int qm4[16] =
|
||||
{
|
||||
0, -20456, -12896, -8968,
|
||||
-6288, -4240, -2584, -1200,
|
||||
20456, 12896, 8968, 6288,
|
||||
4240, 2584, 1200, 0
|
||||
};
|
||||
static const int qm2[4] =
|
||||
{
|
||||
-7408, -1616, 7408, 1616
|
||||
};
|
||||
static const int qmf_coeffs[12] =
|
||||
{
|
||||
3, -11, 12, 32, -210, 951, 3876, -805, 362, -156, 53, -11,
|
||||
};
|
||||
static const int ihn[3] = {0, 1, 0};
|
||||
static const int ihp[3] = {0, 3, 2};
|
||||
static const int wh[3] = {0, -214, 798};
|
||||
static const int rh2[4] = {2, 1, 2, 1};
|
||||
|
||||
int dlow;
|
||||
int dhigh;
|
||||
int el;
|
||||
int wd;
|
||||
int wd1;
|
||||
int ril;
|
||||
int wd2;
|
||||
int il4;
|
||||
int ih2;
|
||||
int wd3;
|
||||
int eh;
|
||||
int mih;
|
||||
int i;
|
||||
int j;
|
||||
/* Low and high band PCM from the QMF */
|
||||
int xlow;
|
||||
int xhigh;
|
||||
int g722_bytes;
|
||||
/* Even and odd tap accumulators */
|
||||
int sumeven;
|
||||
int sumodd;
|
||||
int ihigh;
|
||||
int ilow;
|
||||
int code;
|
||||
|
||||
g722_bytes = 0;
|
||||
xhigh = 0;
|
||||
for (j = 0; j < len; )
|
||||
{
|
||||
if (s->itu_test_mode)
|
||||
{
|
||||
xlow =
|
||||
xhigh = amp[j++] >> 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (s->eight_k)
|
||||
{
|
||||
/* We shift by 1 to allow for the 15 bit input to the G.722 algorithm. */
|
||||
xlow = amp[j++] >> 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Apply the transmit QMF */
|
||||
/* Shuffle the buffer down */
|
||||
for (i = 0; i < 22; i++)
|
||||
s->x[i] = s->x[i + 2];
|
||||
s->x[22] = amp[j++];
|
||||
s->x[23] = amp[j++];
|
||||
|
||||
/* Discard every other QMF output */
|
||||
sumeven = 0;
|
||||
sumodd = 0;
|
||||
for (i = 0; i < 12; i++)
|
||||
{
|
||||
sumodd += s->x[2*i]*qmf_coeffs[i];
|
||||
sumeven += s->x[2*i + 1]*qmf_coeffs[11 - i];
|
||||
}
|
||||
/* We shift by 12 to allow for the QMF filters (DC gain = 4096), plus 1
|
||||
to allow for us summing two filters, plus 1 to allow for the 15 bit
|
||||
input to the G.722 algorithm. */
|
||||
xlow = (sumeven + sumodd) >> 14;
|
||||
xhigh = (sumeven - sumodd) >> 14;
|
||||
|
||||
#ifdef RUN_LIKE_REFERENCE_G722
|
||||
/* The following lines are only used to verify bit-exactness
|
||||
* with reference implementation of G.722. Higher precision
|
||||
* is achieved without limiting the values.
|
||||
*/
|
||||
xlow = limitValues(xlow);
|
||||
xhigh = limitValues(xhigh);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
/* Block 1L, SUBTRA */
|
||||
el = saturate(xlow - s->band[0].s);
|
||||
|
||||
/* Block 1L, QUANTL */
|
||||
wd = (el >= 0) ? el : -(el + 1);
|
||||
|
||||
for (i = 1; i < 30; i++)
|
||||
{
|
||||
wd1 = (q6[i]*s->band[0].det) >> 12;
|
||||
if (wd < wd1)
|
||||
break;
|
||||
}
|
||||
ilow = (el < 0) ? iln[i] : ilp[i];
|
||||
|
||||
/* Block 2L, INVQAL */
|
||||
ril = ilow >> 2;
|
||||
wd2 = qm4[ril];
|
||||
dlow = (s->band[0].det*wd2) >> 15;
|
||||
|
||||
/* Block 3L, LOGSCL */
|
||||
il4 = rl42[ril];
|
||||
wd = (s->band[0].nb*127) >> 7;
|
||||
s->band[0].nb = wd + wl[il4];
|
||||
if (s->band[0].nb < 0)
|
||||
s->band[0].nb = 0;
|
||||
else if (s->band[0].nb > 18432)
|
||||
s->band[0].nb = 18432;
|
||||
|
||||
/* Block 3L, SCALEL */
|
||||
wd1 = (s->band[0].nb >> 6) & 31;
|
||||
wd2 = 8 - (s->band[0].nb >> 11);
|
||||
wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2);
|
||||
s->band[0].det = wd3 << 2;
|
||||
|
||||
block4(s, 0, dlow);
|
||||
|
||||
if (s->eight_k)
|
||||
{
|
||||
/* Just leave the high bits as zero */
|
||||
code = (0xC0 | ilow) >> (8 - s->bits_per_sample);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Block 1H, SUBTRA */
|
||||
eh = saturate(xhigh - s->band[1].s);
|
||||
|
||||
/* Block 1H, QUANTH */
|
||||
wd = (eh >= 0) ? eh : -(eh + 1);
|
||||
wd1 = (564*s->band[1].det) >> 12;
|
||||
mih = (wd >= wd1) ? 2 : 1;
|
||||
ihigh = (eh < 0) ? ihn[mih] : ihp[mih];
|
||||
|
||||
/* Block 2H, INVQAH */
|
||||
wd2 = qm2[ihigh];
|
||||
dhigh = (s->band[1].det*wd2) >> 15;
|
||||
|
||||
/* Block 3H, LOGSCH */
|
||||
ih2 = rh2[ihigh];
|
||||
wd = (s->band[1].nb*127) >> 7;
|
||||
s->band[1].nb = wd + wh[ih2];
|
||||
if (s->band[1].nb < 0)
|
||||
s->band[1].nb = 0;
|
||||
else if (s->band[1].nb > 22528)
|
||||
s->band[1].nb = 22528;
|
||||
|
||||
/* Block 3H, SCALEH */
|
||||
wd1 = (s->band[1].nb >> 6) & 31;
|
||||
wd2 = 10 - (s->band[1].nb >> 11);
|
||||
wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2);
|
||||
s->band[1].det = wd3 << 2;
|
||||
|
||||
block4(s, 1, dhigh);
|
||||
code = ((ihigh << 6) | ilow) >> (8 - s->bits_per_sample);
|
||||
}
|
||||
|
||||
if (s->packed)
|
||||
{
|
||||
/* Pack the code bits */
|
||||
s->out_buffer |= (code << s->out_bits);
|
||||
s->out_bits += s->bits_per_sample;
|
||||
if (s->out_bits >= 8)
|
||||
{
|
||||
g722_data[g722_bytes++] = (uint8_t) (s->out_buffer & 0xFF);
|
||||
s->out_bits -= 8;
|
||||
s->out_buffer >>= 8;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
g722_data[g722_bytes++] = (uint8_t) code;
|
||||
}
|
||||
}
|
||||
return g722_bytes;
|
||||
}
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
/*- End of file ------------------------------------------------------------*/
|
||||
|
|
@ -0,0 +1,114 @@
|
|||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "g722_enc_dec.h"
|
||||
#include "g722_interface.h"
|
||||
#include "typedefs.h"
|
||||
|
||||
int16_t WebRtcG722_CreateEncoder(G722EncInst **G722enc_inst)
|
||||
{
|
||||
*G722enc_inst=(G722EncInst*)malloc(sizeof(G722EncoderState));
|
||||
if (*G722enc_inst!=NULL) {
|
||||
return(0);
|
||||
} else {
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_EncoderInit(G722EncInst *G722enc_inst)
|
||||
{
|
||||
// Create and/or reset the G.722 encoder
|
||||
// Bitrate 64 kbps and wideband mode (2)
|
||||
G722enc_inst = (G722EncInst *) WebRtc_g722_encode_init(
|
||||
(G722EncoderState*) G722enc_inst, 64000, 2);
|
||||
if (G722enc_inst == NULL) {
|
||||
return -1;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_FreeEncoder(G722EncInst *G722enc_inst)
|
||||
{
|
||||
// Free encoder memory
|
||||
return WebRtc_g722_encode_release((G722EncoderState*) G722enc_inst);
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_Encode(G722EncInst *G722enc_inst,
|
||||
const int16_t* speechIn,
|
||||
int16_t len,
|
||||
uint8_t* encoded)
|
||||
{
|
||||
unsigned char *codechar = (unsigned char*) encoded;
|
||||
// Encode the input speech vector
|
||||
return WebRtc_g722_encode((G722EncoderState*) G722enc_inst,
|
||||
codechar, speechIn, len);
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_CreateDecoder(G722DecInst **G722dec_inst)
|
||||
{
|
||||
*G722dec_inst=(G722DecInst*)malloc(sizeof(G722DecoderState));
|
||||
if (*G722dec_inst!=NULL) {
|
||||
return(0);
|
||||
} else {
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_DecoderInit(G722DecInst *G722dec_inst)
|
||||
{
|
||||
// Create and/or reset the G.722 decoder
|
||||
// Bitrate 64 kbps and wideband mode (2)
|
||||
G722dec_inst = (G722DecInst *) WebRtc_g722_decode_init(
|
||||
(G722DecoderState*) G722dec_inst, 64000, 2);
|
||||
if (G722dec_inst == NULL) {
|
||||
return -1;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_FreeDecoder(G722DecInst *G722dec_inst)
|
||||
{
|
||||
// Free encoder memory
|
||||
return WebRtc_g722_decode_release((G722DecoderState*) G722dec_inst);
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
|
||||
int16_t *encoded,
|
||||
int16_t len,
|
||||
int16_t *decoded,
|
||||
int16_t *speechType)
|
||||
{
|
||||
// Decode the G.722 encoder stream
|
||||
*speechType=G722_WEBRTC_SPEECH;
|
||||
return WebRtc_g722_decode((G722DecoderState*) G722dec_inst,
|
||||
decoded, (uint8_t*) encoded, len);
|
||||
}
|
||||
|
||||
int16_t WebRtcG722_Version(char *versionStr, short len)
|
||||
{
|
||||
// Get version string
|
||||
char version[30] = "2.0.0\n";
|
||||
if (strlen(version) < (unsigned int)len)
|
||||
{
|
||||
strcpy(versionStr, version);
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,190 @@
|
|||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef MODULES_AUDIO_CODING_CODECS_G722_MAIN_INTERFACE_G722_INTERFACE_H_
|
||||
#define MODULES_AUDIO_CODING_CODECS_G722_MAIN_INTERFACE_G722_INTERFACE_H_
|
||||
|
||||
#include "typedefs.h"
|
||||
|
||||
/*
|
||||
* Solution to support multiple instances
|
||||
*/
|
||||
|
||||
typedef struct WebRtcG722EncInst G722EncInst;
|
||||
typedef struct WebRtcG722DecInst G722DecInst;
|
||||
|
||||
/*
|
||||
* Comfort noise constants
|
||||
*/
|
||||
|
||||
#define G722_WEBRTC_SPEECH 1
|
||||
#define G722_WEBRTC_CNG 2
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_CreateEncoder(...)
|
||||
*
|
||||
* Create memory used for G722 encoder
|
||||
*
|
||||
* Input:
|
||||
* - G722enc_inst : G722 instance for encoder
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int16_t WebRtcG722_CreateEncoder(G722EncInst **G722enc_inst);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_EncoderInit(...)
|
||||
*
|
||||
* This function initializes a G722 instance
|
||||
*
|
||||
* Input:
|
||||
* - G722enc_inst : G722 instance, i.e. the user that should receive
|
||||
* be initialized
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_EncoderInit(G722EncInst *G722enc_inst);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_FreeEncoder(...)
|
||||
*
|
||||
* Free the memory used for G722 encoder
|
||||
*
|
||||
* Input:
|
||||
* - G722enc_inst : G722 instance for encoder
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int16_t WebRtcG722_FreeEncoder(G722EncInst *G722enc_inst);
|
||||
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_Encode(...)
|
||||
*
|
||||
* This function encodes G722 encoded data.
|
||||
*
|
||||
* Input:
|
||||
* - G722enc_inst : G722 instance, i.e. the user that should encode
|
||||
* a packet
|
||||
* - speechIn : Input speech vector
|
||||
* - len : Samples in speechIn
|
||||
*
|
||||
* Output:
|
||||
* - encoded : The encoded data vector
|
||||
*
|
||||
* Return value : >0 - Length (in bytes) of coded data
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_Encode(G722EncInst* G722enc_inst,
|
||||
const int16_t* speechIn,
|
||||
int16_t len,
|
||||
uint8_t* encoded);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_CreateDecoder(...)
|
||||
*
|
||||
* Create memory used for G722 encoder
|
||||
*
|
||||
* Input:
|
||||
* - G722dec_inst : G722 instance for decoder
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
int16_t WebRtcG722_CreateDecoder(G722DecInst **G722dec_inst);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_DecoderInit(...)
|
||||
*
|
||||
* This function initializes a G729 instance
|
||||
*
|
||||
* Input:
|
||||
* - G729_decinst_t : G729 instance, i.e. the user that should receive
|
||||
* be initialized
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_DecoderInit(G722DecInst *G722dec_inst);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_FreeDecoder(...)
|
||||
*
|
||||
* Free the memory used for G722 decoder
|
||||
*
|
||||
* Input:
|
||||
* - G722dec_inst : G722 instance for decoder
|
||||
*
|
||||
* Return value : 0 - Ok
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_FreeDecoder(G722DecInst *G722dec_inst);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_Decode(...)
|
||||
*
|
||||
* This function decodes a packet with G729 frame(s). Output speech length
|
||||
* will be a multiple of 80 samples (80*frames/packet).
|
||||
*
|
||||
* Input:
|
||||
* - G722dec_inst : G722 instance, i.e. the user that should decode
|
||||
* a packet
|
||||
* - encoded : Encoded G722 frame(s)
|
||||
* - len : Bytes in encoded vector
|
||||
*
|
||||
* Output:
|
||||
* - decoded : The decoded vector
|
||||
* - speechType : 1 normal, 2 CNG (Since G722 does not have its own
|
||||
* DTX/CNG scheme it should always return 1)
|
||||
*
|
||||
* Return value : >0 - Samples in decoded vector
|
||||
* -1 - Error
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
|
||||
int16_t *encoded,
|
||||
int16_t len,
|
||||
int16_t *decoded,
|
||||
int16_t *speechType);
|
||||
|
||||
/****************************************************************************
|
||||
* WebRtcG722_Version(...)
|
||||
*
|
||||
* Get a string with the current version of the codec
|
||||
*/
|
||||
|
||||
int16_t WebRtcG722_Version(char *versionStr, short len);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#endif /* MODULES_AUDIO_CODING_CODECS_G722_MAIN_INTERFACE_G722_INTERFACE_H_ */
|
||||
|
|
@ -34,6 +34,7 @@ const TokenDict SDPParser::s_payloads[] = {
|
|||
{ "lpc10", 7 },
|
||||
{ "slin", 11 },
|
||||
{ "g726", 2 },
|
||||
{ "g722/16000", 9 },
|
||||
{ "g722", 9 },
|
||||
{ "g723", 4 },
|
||||
{ "g728", 15 },
|
||||
|
|
|
|||
|
|
@ -174,6 +174,10 @@ ifneq (@HAVE_ISAC@,no)
|
|||
PROGS := $(PROGS) isaccodec.yate
|
||||
endif
|
||||
|
||||
ifneq (@HAVE_G722WR@,no)
|
||||
PROGS := $(PROGS) g722webrtc.yate
|
||||
endif
|
||||
|
||||
ifneq (@HAVE_SPEEX@,no)
|
||||
PROGS := $(PROGS) speexcodec.yate
|
||||
endif
|
||||
|
|
@ -384,6 +388,10 @@ isaccodec.yate: ../libs/miniwebrtc/libminiwebrtc.a
|
|||
isaccodec.yate: LOCALFLAGS = @ISAC_INC@ -I@top_srcdir@/libs/miniwebrtc/audio/common/processing -I@top_srcdir@/libs/miniwebrtc
|
||||
isaccodec.yate: LOCALLIBS = -L../libs/miniwebrtc -lminiwebrtc
|
||||
|
||||
g722webrtc.yate: ../libs/miniwebrtc/libminiwebrtc.a
|
||||
g722webrtc.yate: LOCALFLAGS = @G722WR_INC@ -I@top_srcdir@/libs/miniwebrtc/audio/common/processing -I@top_srcdir@/libs/miniwebrtc
|
||||
g722webrtc.yate: LOCALLIBS = -L../libs/miniwebrtc -lminiwebrtc
|
||||
|
||||
gsmcodec.yate: EXTERNFLAGS = @GSM_INC@
|
||||
gsmcodec.yate: EXTERNLIBS = @GSM_LIB@
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,292 @@
|
|||
/**
|
||||
* g722webrtc.cpp
|
||||
* This file is part of the YATE Project http://YATE.null.ro
|
||||
*
|
||||
* G.722 codec using library based on WebRTC project.
|
||||
*
|
||||
* Yet Another Telephony Engine - a fully featured software PBX and IVR
|
||||
* Copyright (C) 2019 Null Team
|
||||
*
|
||||
* This software is distributed under multiple licenses;
|
||||
* see the COPYING file in the main directory for licensing
|
||||
* information for this specific distribution.
|
||||
*
|
||||
* This use of this software may be subject to additional restrictions.
|
||||
* See the LEGAL file in the main directory for details.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
*
|
||||
* Copyright (c) 2011, The WebRTC project authors. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are
|
||||
* met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* * Neither the name of Google nor the names of its contributors may
|
||||
* be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <yatephone.h>
|
||||
|
||||
extern "C" {
|
||||
#include "signal_processing_library.h"
|
||||
#include "g722_interface.h"
|
||||
}
|
||||
| ||||