1b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* 2b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * SpanDSP - a series of DSP components for telephony 3b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 4b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * g722_encode.c - The ITU G.722 codec, encode part. 5b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 6b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Written by Steve Underwood <steveu@coppice.org> 7b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 8b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Copyright (C) 2005 Steve Underwood 9b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 10b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * All rights reserved. 11b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 12b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Despite my general liking of the GPL, I place my own contributions 13b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * to this code in the public domain for the benefit of all mankind - 14b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * even the slimy ones who might try to proprietize my work and use it 15b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * to my detriment. 16b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 17b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Based on a single channel 64kbps only G.722 codec which is: 18b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ***** Copyright (c) CMU 1993 ***** 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Computer Science, Speech Group 21b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Chengxiang Lu and Alex Hauptmann 22b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 23b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * $Id: g722_encode.c,v 1.14 2006/07/07 16:37:49 steveu Exp $ 24b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * 25b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Modifications for WebRtc, 2011/04/28, by tlegrand: 26b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * -Removed usage of inttypes.h and tgmath.h 27b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * -Changed to use WebRtc types 28b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * -Added option to run encoder bitexact with ITU-T reference implementation 29b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 30b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 31b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*! \file */ 32b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 33b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifdef HAVE_CONFIG_H 34b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include <config.h> 35b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif 36b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 3769370488385c14d73e6ae8a3d5001c42884f9275henrike@webrtc.org#include <memory.h> 38a11402cdbf99a12d58421d5b446982e8d30c40caandresp@webrtc.org#include <stdio.h> 39b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include <stdlib.h> 40b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 41b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include "g722_enc_dec.h" 42a11402cdbf99a12d58421d5b446982e8d30c40caandresp@webrtc.org#include "webrtc/typedefs.h" 43b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 44b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#if !defined(FALSE) 45b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#define FALSE 0 46b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif 47b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#if !defined(TRUE) 48b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#define TRUE (!FALSE) 49b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif 50b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 51fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.orgstatic __inline int16_t saturate(int32_t amp) 52b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 53fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t amp16; 54b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 55b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Hopefully this is optimised for the common case - not clipping */ 56fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org amp16 = (int16_t) amp; 57b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (amp == amp16) 58b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return amp16; 59b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (amp > WEBRTC_INT16_MAX) 60b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return WEBRTC_INT16_MAX; 61b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return WEBRTC_INT16_MIN; 62b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 63b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of function --------------------------------------------------------*/ 64b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 65b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgstatic void block4(g722_encode_state_t *s, int band, int d) 66b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 67b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd1; 68b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd2; 69b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd3; 70b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int i; 71b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 72b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, RECONS */ 73b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].d[0] = d; 74b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].r[0] = saturate(s->band[band].s + d); 75b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 76b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, PARREC */ 77b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].p[0] = saturate(s->band[band].sz + d); 78b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 79b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, UPPOL2 */ 80b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 0; i < 3; i++) 81b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sg[i] = s->band[band].p[i] >> 15; 82b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = saturate(s->band[band].a[1] << 2); 83b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 84b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = (s->band[band].sg[0] == s->band[band].sg[1]) ? -wd1 : wd1; 85b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (wd2 > 32767) 86b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = 32767; 87b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = (wd2 >> 7) + ((s->band[band].sg[0] == s->band[band].sg[2]) ? 128 : -128); 88b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 += (s->band[band].a[2]*32512) >> 15; 89b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (wd3 > 12288) 90b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = 12288; 91b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else if (wd3 < -12288) 92b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = -12288; 93b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].ap[2] = wd3; 94b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 95b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, UPPOL1 */ 96b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sg[0] = s->band[band].p[0] >> 15; 97b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sg[1] = s->band[band].p[1] >> 15; 98b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (s->band[band].sg[0] == s->band[band].sg[1]) ? 192 : -192; 99b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = (s->band[band].a[1]*32640) >> 15; 100b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 101b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].ap[1] = saturate(wd1 + wd2); 102b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = saturate(15360 - s->band[band].ap[2]); 103b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->band[band].ap[1] > wd3) 104b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].ap[1] = wd3; 105b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else if (s->band[band].ap[1] < -wd3) 106b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].ap[1] = -wd3; 107b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 108b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, UPZERO */ 109b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (d == 0) ? 0 : 128; 110b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sg[0] = d >> 15; 111b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 1; i < 7; i++) 112b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 113b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sg[i] = s->band[band].d[i] >> 15; 114b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = (s->band[band].sg[i] == s->band[band].sg[0]) ? wd1 : -wd1; 115b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = (s->band[band].b[i]*32640) >> 15; 116b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].bp[i] = saturate(wd2 + wd3); 117b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 118b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 119b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, DELAYA */ 120b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 6; i > 0; i--) 121b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 122b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].d[i] = s->band[band].d[i - 1]; 123b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].b[i] = s->band[band].bp[i]; 124b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 125b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 126b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 2; i > 0; i--) 127b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 128b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].r[i] = s->band[band].r[i - 1]; 129b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].p[i] = s->band[band].p[i - 1]; 130b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].a[i] = s->band[band].ap[i]; 131b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 132b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 133b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, FILTEP */ 134b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = saturate(s->band[band].r[1] + s->band[band].r[1]); 135b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (s->band[band].a[1]*wd1) >> 15; 136b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = saturate(s->band[band].r[2] + s->band[band].r[2]); 137b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = (s->band[band].a[2]*wd2) >> 15; 138b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sp = saturate(wd1 + wd2); 139b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 140b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, FILTEZ */ 141b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sz = 0; 142b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 6; i > 0; i--) 143b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 144b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = saturate(s->band[band].d[i] + s->band[band].d[i]); 145b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sz += (s->band[band].b[i]*wd1) >> 15; 146b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 147b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].sz = saturate(s->band[band].sz); 148b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 149b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 4, PREDIC */ 150b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[band].s = saturate(s->band[band].sp + s->band[band].sz); 151b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 152b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of function --------------------------------------------------------*/ 153b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 154b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgg722_encode_state_t *WebRtc_g722_encode_init(g722_encode_state_t *s, 155b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int rate, int options) 156b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 157b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s == NULL) 158b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 159b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if ((s = (g722_encode_state_t *) malloc(sizeof(*s))) == NULL) 160b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return NULL; 161b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 162b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org memset(s, 0, sizeof(*s)); 163b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (rate == 48000) 164b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->bits_per_sample = 6; 165b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else if (rate == 56000) 166b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->bits_per_sample = 7; 167b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 168b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->bits_per_sample = 8; 169b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if ((options & G722_SAMPLE_RATE_8000)) 170b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->eight_k = TRUE; 171b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if ((options & G722_PACKED) && s->bits_per_sample != 8) 172b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->packed = TRUE; 173b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 174b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->packed = FALSE; 175b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[0].det = 32; 176b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[1].det = 8; 177b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return s; 178b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 179b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of function --------------------------------------------------------*/ 180b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 181b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orgint WebRtc_g722_encode_release(g722_encode_state_t *s) 182b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 183b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org free(s); 184b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return 0; 185b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 186b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of function --------------------------------------------------------*/ 187b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 188b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/* WebRtc, tlegrand: 189b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * Only define the following if bit-exactness with reference implementation 190b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * is needed. Will only have any effect if input signal is saturated. 191b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 192b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org//#define RUN_LIKE_REFERENCE_G722 193b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifdef RUN_LIKE_REFERENCE_G722 194fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.orgint16_t limitValues (int16_t rl) 195b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 196b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 197fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org int16_t yl; 198b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 199b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org yl = (rl > 16383) ? 16383 : ((rl < -16384) ? -16384 : rl); 200b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 201b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return (yl); 202b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 203b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif 204b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 205fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.orgint WebRtc_g722_encode(g722_encode_state_t *s, uint8_t g722_data[], 206fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org const int16_t amp[], int len) 207b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org{ 208b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int q6[32] = 209b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 210b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 0, 35, 72, 110, 150, 190, 233, 276, 211b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 323, 370, 422, 473, 530, 587, 650, 714, 212b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 786, 858, 940, 1023, 1121, 1219, 1339, 1458, 213b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 1612, 1765, 1980, 2195, 2557, 2919, 0, 0 214b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 215b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int iln[32] = 216b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 217b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 0, 63, 62, 31, 30, 29, 28, 27, 218b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 26, 25, 24, 23, 22, 21, 20, 19, 219b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 18, 17, 16, 15, 14, 13, 12, 11, 220b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 10, 9, 8, 7, 6, 5, 4, 0 221b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 222b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int ilp[32] = 223b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 224b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 0, 61, 60, 59, 58, 57, 56, 55, 225b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 54, 53, 52, 51, 50, 49, 48, 47, 226b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 46, 45, 44, 43, 42, 41, 40, 39, 227b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 38, 37, 36, 35, 34, 33, 32, 0 228b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 229b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int wl[8] = 230b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 231b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org -60, -30, 58, 172, 334, 538, 1198, 3042 232b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 233b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int rl42[16] = 234b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 235b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 0, 7, 6, 5, 4, 3, 2, 1, 7, 6, 5, 4, 3, 2, 1, 0 236b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 237b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int ilb[32] = 238b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 239b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 2048, 2093, 2139, 2186, 2233, 2282, 2332, 240b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 2383, 2435, 2489, 2543, 2599, 2656, 2714, 241b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 2774, 2834, 2896, 2960, 3025, 3091, 3158, 242b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 3228, 3298, 3371, 3444, 3520, 3597, 3676, 243b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 3756, 3838, 3922, 4008 244b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 245b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int qm4[16] = 246b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 247b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 0, -20456, -12896, -8968, 248b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org -6288, -4240, -2584, -1200, 249b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 20456, 12896, 8968, 6288, 250b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 4240, 2584, 1200, 0 251b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 252b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int qm2[4] = 253b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 254b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org -7408, -1616, 7408, 1616 255b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 256b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int qmf_coeffs[12] = 257b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 258b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 3, -11, 12, 32, -210, 951, 3876, -805, 362, -156, 53, -11, 259b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org }; 260b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int ihn[3] = {0, 1, 0}; 261b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int ihp[3] = {0, 3, 2}; 262b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int wh[3] = {0, -214, 798}; 263b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static const int rh2[4] = {2, 1, 2, 1}; 264b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 265b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int dlow; 266b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int dhigh; 267b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int el; 268b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd; 269b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd1; 270b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int ril; 271b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd2; 272b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int il4; 273b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int ih2; 274b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int wd3; 275b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int eh; 276b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int mih; 277b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int i; 278b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int j; 279b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Low and high band PCM from the QMF */ 280b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int xlow; 281b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int xhigh; 282b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int g722_bytes; 283b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Even and odd tap accumulators */ 284b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int sumeven; 285b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int sumodd; 286b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int ihigh; 287b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int ilow; 288b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org int code; 289b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 290b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org g722_bytes = 0; 291b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xhigh = 0; 292b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (j = 0; j < len; ) 293b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 294b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->itu_test_mode) 295b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 296b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xlow = 297b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xhigh = amp[j++] >> 1; 298b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 299b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 300b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 301b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->eight_k) 302b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 303b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* We shift by 1 to allow for the 15 bit input to the G.722 algorithm. */ 304b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xlow = amp[j++] >> 1; 305b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 306b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 307b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 308b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Apply the transmit QMF */ 309b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Shuffle the buffer down */ 310b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 0; i < 22; i++) 311b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->x[i] = s->x[i + 2]; 312b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->x[22] = amp[j++]; 313b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->x[23] = amp[j++]; 314b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 315b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Discard every other QMF output */ 316b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org sumeven = 0; 317b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org sumodd = 0; 318b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 0; i < 12; i++) 319b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 320b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org sumodd += s->x[2*i]*qmf_coeffs[i]; 321b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org sumeven += s->x[2*i + 1]*qmf_coeffs[11 - i]; 322b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 323b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* We shift by 12 to allow for the QMF filters (DC gain = 4096), plus 1 324b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org to allow for us summing two filters, plus 1 to allow for the 15 bit 325b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org input to the G.722 algorithm. */ 326b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xlow = (sumeven + sumodd) >> 14; 327b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xhigh = (sumeven - sumodd) >> 14; 328b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 329b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifdef RUN_LIKE_REFERENCE_G722 330b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* The following lines are only used to verify bit-exactness 331b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * with reference implementation of G.722. Higher precision 332b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org * is achieved without limiting the values. 333b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org */ 334b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xlow = limitValues(xlow); 335b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org xhigh = limitValues(xhigh); 336b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif 337b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 338b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 339b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 1L, SUBTRA */ 340b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org el = saturate(xlow - s->band[0].s); 341b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 342b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 1L, QUANTL */ 343b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd = (el >= 0) ? el : -(el + 1); 344b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 345b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org for (i = 1; i < 30; i++) 346b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 347b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (q6[i]*s->band[0].det) >> 12; 348b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (wd < wd1) 349b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org break; 350b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 351b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ilow = (el < 0) ? iln[i] : ilp[i]; 352b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 353b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 2L, INVQAL */ 354b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ril = ilow >> 2; 355b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = qm4[ril]; 356b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org dlow = (s->band[0].det*wd2) >> 15; 357b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 358b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 3L, LOGSCL */ 359b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org il4 = rl42[ril]; 360b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd = (s->band[0].nb*127) >> 7; 361b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[0].nb = wd + wl[il4]; 362b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->band[0].nb < 0) 363b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[0].nb = 0; 364b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else if (s->band[0].nb > 18432) 365b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[0].nb = 18432; 366b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 367b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 3L, SCALEL */ 368b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (s->band[0].nb >> 6) & 31; 369b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = 8 - (s->band[0].nb >> 11); 370b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2); 371b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[0].det = wd3 << 2; 372b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 373b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org block4(s, 0, dlow); 374b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 375b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->eight_k) 376b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 377b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Just leave the high bits as zero */ 378b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org code = (0xC0 | ilow) >> (8 - s->bits_per_sample); 379b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 380b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 381b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 382b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 1H, SUBTRA */ 383b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org eh = saturate(xhigh - s->band[1].s); 384b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 385b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 1H, QUANTH */ 386b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd = (eh >= 0) ? eh : -(eh + 1); 387b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (564*s->band[1].det) >> 12; 388b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org mih = (wd >= wd1) ? 2 : 1; 389b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ihigh = (eh < 0) ? ihn[mih] : ihp[mih]; 390b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 391b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 2H, INVQAH */ 392b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = qm2[ihigh]; 393b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org dhigh = (s->band[1].det*wd2) >> 15; 394b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 395b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 3H, LOGSCH */ 396b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org ih2 = rh2[ihigh]; 397b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd = (s->band[1].nb*127) >> 7; 398b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[1].nb = wd + wh[ih2]; 399b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->band[1].nb < 0) 400b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[1].nb = 0; 401b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else if (s->band[1].nb > 22528) 402b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[1].nb = 22528; 403b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 404b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Block 3H, SCALEH */ 405b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd1 = (s->band[1].nb >> 6) & 31; 406b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd2 = 10 - (s->band[1].nb >> 11); 407b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org wd3 = (wd2 < 0) ? (ilb[wd1] << -wd2) : (ilb[wd1] >> wd2); 408b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->band[1].det = wd3 << 2; 409b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 410b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org block4(s, 1, dhigh); 411b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org code = ((ihigh << 6) | ilow) >> (8 - s->bits_per_sample); 412b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 413b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 414b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->packed) 415b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 416b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org /* Pack the code bits */ 417b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->out_buffer |= (code << s->out_bits); 418b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->out_bits += s->bits_per_sample; 419b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org if (s->out_bits >= 8) 420b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 421fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org g722_data[g722_bytes++] = (uint8_t) (s->out_buffer & 0xFF); 422b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->out_bits -= 8; 423b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org s->out_buffer >>= 8; 424b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 425b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 426b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org else 427b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org { 428fbda0fcf2f9e82c82bcaac138f44d4e5144f6e0dpbos@webrtc.org g722_data[g722_bytes++] = (uint8_t) code; 429b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 430b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org } 431b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return g722_bytes; 432b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 433b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of function --------------------------------------------------------*/ 434b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org/*- End of file ------------------------------------------------------------*/ 435