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/*
* Copyright (c) 2012 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 "webrtc/modules/audio_coding/main/acm2/acm_g7221c.h"
#ifdef WEBRTC_CODEC_G722_1C
// NOTE! G.722.1C is not included in the open-source package. The following
// interface file is needed:
#include "webrtc/modules/audio_coding/main/codecs/g7221c/interface/g7221c_interface.h"
#include "webrtc/modules/audio_coding/main/acm2/acm_codec_database.h"
#include "webrtc/modules/audio_coding/main/acm2/acm_common_defs.h"
#include "webrtc/system_wrappers/interface/trace.h"
// The API in the header file should match the one below.
//
// int16_t WebRtcG7221C_CreateEnc24(G722_1C_24_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_CreateEnc32(G722_1C_32_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_CreateEnc48(G722_1C_48_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_CreateDec24(G722_1C_24_decinst_t_** dec_inst);
// int16_t WebRtcG7221C_CreateDec32(G722_1C_32_decinst_t_** dec_inst);
// int16_t WebRtcG7221C_CreateDec48(G722_1C_48_decinst_t_** dec_inst);
//
// int16_t WebRtcG7221C_FreeEnc24(G722_1C_24_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_FreeEnc32(G722_1C_32_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_FreeEnc48(G722_1C_48_encinst_t_** enc_inst);
// int16_t WebRtcG7221C_FreeDec24(G722_1C_24_decinst_t_** dec_inst);
// int16_t WebRtcG7221C_FreeDec32(G722_1C_32_decinst_t_** dec_inst);
// int16_t WebRtcG7221C_FreeDec48(G722_1C_48_decinst_t_** dec_inst);
//
// int16_t WebRtcG7221C_EncoderInit24(G722_1C_24_encinst_t_* enc_inst);
// int16_t WebRtcG7221C_EncoderInit32(G722_1C_32_encinst_t_* enc_inst);
// int16_t WebRtcG7221C_EncoderInit48(G722_1C_48_encinst_t_* enc_inst);
// int16_t WebRtcG7221C_DecoderInit24(G722_1C_24_decinst_t_* dec_inst);
// int16_t WebRtcG7221C_DecoderInit32(G722_1C_32_decinst_t_* dec_inst);
// int16_t WebRtcG7221C_DecoderInit48(G722_1C_48_decinst_t_* dec_inst);
//
// int16_t WebRtcG7221C_Encode24(G722_1C_24_encinst_t_* enc_inst,
// int16_t* input,
// int16_t len,
// int16_t* output);
// int16_t WebRtcG7221C_Encode32(G722_1C_32_encinst_t_* enc_inst,
// int16_t* input,
// int16_t len,
// int16_t* output);
// int16_t WebRtcG7221C_Encode48(G722_1C_48_encinst_t_* enc_inst,
// int16_t* input,
// int16_t len,
// int16_t* output);
//
// int16_t WebRtcG7221C_Decode24(G722_1C_24_decinst_t_* dec_inst,
// int16_t* bitstream,
// int16_t len,
// int16_t* output);
// int16_t WebRtcG7221C_Decode32(G722_1C_32_decinst_t_* dec_inst,
// int16_t* bitstream,
// int16_t len,
// int16_t* output);
// int16_t WebRtcG7221C_Decode48(G722_1C_48_decinst_t_* dec_inst,
// int16_t* bitstream,
// int16_t len,
// int16_t* output);
//
// int16_t WebRtcG7221C_DecodePlc24(G722_1C_24_decinst_t_* dec_inst,
// int16_t* output,
// int16_t nr_lost_frames);
// int16_t WebRtcG7221C_DecodePlc32(G722_1C_32_decinst_t_* dec_inst,
// int16_t* output,
// int16_t nr_lost_frames);
// int16_t WebRtcG7221C_DecodePlc48(G722_1C_48_decinst_t_* dec_inst,
// int16_t* output,
// int16_t nr_lost_frames);
#endif
namespace webrtc {
namespace acm2 {
#ifndef WEBRTC_CODEC_G722_1C
ACMG722_1C::ACMG722_1C(int16_t /* codec_id */)
: operational_rate_(-1),
encoder_inst_ptr_(NULL),
encoder_inst_ptr_right_(NULL),
encoder_inst24_ptr_(NULL),
encoder_inst24_ptr_right_(NULL),
encoder_inst32_ptr_(NULL),
encoder_inst32_ptr_right_(NULL),
encoder_inst48_ptr_(NULL),
encoder_inst48_ptr_right_(NULL) {
return;
}
ACMG722_1C::~ACMG722_1C() { return; }
int16_t ACMG722_1C::InternalEncode(uint8_t* /* bitstream */,
int16_t* /* bitstream_len_byte */) {
return -1;
}
int16_t ACMG722_1C::InternalInitEncoder(
WebRtcACMCodecParams* /* codec_params */) {
return -1;
}
ACMGenericCodec* ACMG722_1C::CreateInstance(void) { return NULL; }
int16_t ACMG722_1C::InternalCreateEncoder() { return -1; }
void ACMG722_1C::DestructEncoderSafe() { return; }
#else //===================== Actual Implementation =======================
ACMG722_1C::ACMG722_1C(int16_t codec_id)
: encoder_inst_ptr_(NULL),
encoder_inst_ptr_right_(NULL),
encoder_inst24_ptr_(NULL),
encoder_inst24_ptr_right_(NULL),
encoder_inst32_ptr_(NULL),
encoder_inst32_ptr_right_(NULL),
encoder_inst48_ptr_(NULL),
encoder_inst48_ptr_right_(NULL) {
codec_id_ = codec_id;
if (codec_id_ == ACMCodecDB::kG722_1C_24) {
operational_rate_ = 24000;
} else if (codec_id_ == ACMCodecDB::kG722_1C_32) {
operational_rate_ = 32000;
} else if (codec_id_ == ACMCodecDB::kG722_1C_48) {
operational_rate_ = 48000;
} else {
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_,
"Wrong codec id for G722_1c.");
operational_rate_ = -1;
}
return;
}
ACMG722_1C::~ACMG722_1C() {
if (encoder_inst_ptr_ != NULL) {
delete encoder_inst_ptr_;
encoder_inst_ptr_ = NULL;
}
if (encoder_inst_ptr_right_ != NULL) {
delete encoder_inst_ptr_right_;
encoder_inst_ptr_right_ = NULL;
}
switch (operational_rate_) {
case 24000: {
encoder_inst24_ptr_ = NULL;
encoder_inst24_ptr_right_ = NULL;
break;
}
case 32000: {
encoder_inst32_ptr_ = NULL;
encoder_inst32_ptr_right_ = NULL;
break;
}
case 48000: {
encoder_inst48_ptr_ = NULL;
encoder_inst48_ptr_right_ = NULL;
break;
}
default: {
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_,
"Wrong rate for G722_1c.");
break;
}
}
return;
}
int16_t ACMG722_1C::InternalEncode(uint8_t* bitstream,
int16_t* bitstream_len_byte) {
int16_t left_channel[640];
int16_t right_channel[640];
int16_t len_in_bytes;
int16_t out_bits[240];
// If stereo, split input signal in left and right channel before encoding
if (num_channels_ == 2) {
for (int i = 0, j = 0; i < frame_len_smpl_ * 2; i += 2, j++) {
left_channel[j] = in_audio_[in_audio_ix_read_ + i];
right_channel[j] = in_audio_[in_audio_ix_read_ + i + 1];
}
} else {
memcpy(left_channel, &in_audio_[in_audio_ix_read_], 640);
}
switch (operational_rate_) {
case 24000: {
len_in_bytes = WebRtcG7221C_Encode24(encoder_inst24_ptr_, left_channel,
640, &out_bits[0]);
if (num_channels_ == 2) {
len_in_bytes += WebRtcG7221C_Encode24(encoder_inst24_ptr_right_,
right_channel, 640,
&out_bits[len_in_bytes / 2]);
}
break;
}
case 32000: {
len_in_bytes = WebRtcG7221C_Encode32(encoder_inst32_ptr_, left_channel,
640, &out_bits[0]);
if (num_channels_ == 2) {
len_in_bytes += WebRtcG7221C_Encode32(encoder_inst32_ptr_right_,
right_channel, 640,
&out_bits[len_in_bytes / 2]);
}
break;
}
case 48000: {
len_in_bytes = WebRtcG7221C_Encode48(encoder_inst48_ptr_, left_channel,
640, &out_bits[0]);
if (num_channels_ == 2) {
len_in_bytes += WebRtcG7221C_Encode48(encoder_inst48_ptr_right_,
right_channel, 640,
&out_bits[len_in_bytes / 2]);
}
break;
}
default: {
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_,
"InternalEncode: Wrong rate for G722_1c.");
return -1;
}
}
memcpy(bitstream, out_bits, len_in_bytes);
*bitstream_len_byte = len_in_bytes;
// increment the read index this tell the caller that how far
// we have gone forward in reading the audio buffer
in_audio_ix_read_ += 640 * num_channels_;
return *bitstream_len_byte;
}
int16_t ACMG722_1C::InternalInitEncoder(WebRtcACMCodecParams* codec_params) {
int16_t ret;
switch (operational_rate_) {
case 24000: {
ret = WebRtcG7221C_EncoderInit24(encoder_inst24_ptr_right_);
if (ret < 0) {
return ret;
}
return WebRtcG7221C_EncoderInit24(encoder_inst24_ptr_);
}
case 32000: {
ret = WebRtcG7221C_EncoderInit32(encoder_inst32_ptr_right_);
if (ret < 0) {
return ret;
}
return WebRtcG7221C_EncoderInit32(encoder_inst32_ptr_);
}
case 48000: {
ret = WebRtcG7221C_EncoderInit48(encoder_inst48_ptr_right_);
if (ret < 0) {
return ret;
}
return WebRtcG7221C_EncoderInit48(encoder_inst48_ptr_);
}
default: {
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_,
"InternalInitEncode: Wrong rate for G722_1c.");
return -1;
}
}
}
ACMGenericCodec* ACMG722_1C::CreateInstance(void) { return NULL; }
int16_t ACMG722_1C::InternalCreateEncoder() {
if ((encoder_inst_ptr_ == NULL) || (encoder_inst_ptr_right_ == NULL)) {
return -1;
}
switch (operational_rate_) {
case 24000: {
WebRtcG7221C_CreateEnc24(&encoder_inst24_ptr_);
WebRtcG7221C_CreateEnc24(&encoder_inst24_ptr_right_);
break;
}
case 32000: {
WebRtcG7221C_CreateEnc32(&encoder_inst32_ptr_);
WebRtcG7221C_CreateEnc32(&encoder_inst32_ptr_right_);
break;
}
case 48000: {
WebRtcG7221C_CreateEnc48(&encoder_inst48_ptr_);
WebRtcG7221C_CreateEnc48(&encoder_inst48_ptr_right_);
break;
}
default: {
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_,
"InternalCreateEncoder: Wrong rate for G722_1c.");
return -1;
}
}
return 0;
}
void ACMG722_1C::DestructEncoderSafe() {
encoder_exist_ = false;
encoder_initialized_ = false;
if (encoder_inst_ptr_ != NULL) {
delete encoder_inst_ptr_;
encoder_inst_ptr_ = NULL;
}
if (encoder_inst_ptr_right_ != NULL) {
delete encoder_inst_ptr_right_;
encoder_inst_ptr_right_ = NULL;
}
encoder_inst24_ptr_ = NULL;
encoder_inst32_ptr_ = NULL;
encoder_inst48_ptr_ = NULL;
}
#endif
} // namespace acm2
} // namespace webrtc
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