mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-19 14:37:32 +00:00
337 lines
11 KiB
C++
337 lines
11 KiB
C++
/*
|
|
* 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; }
|
|
|
|
void ACMG722_1C::InternalDestructEncoderInst(void* /* ptr_inst */) { 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;
|
|
}
|
|
|
|
void ACMG722_1C::InternalDestructEncoderInst(void* ptr_inst) {
|
|
if (ptr_inst != NULL) {
|
|
delete ptr_inst;
|
|
}
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
|
|
} // namespace acm2
|
|
|
|
} // namespace webrtc
|