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/*
* Copyright (c) 2015 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 WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_RENT_A_CODEC_H_
#define WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_RENT_A_CODEC_H_
#include <stddef.h>
#include "webrtc/base/array_view.h"
#include "webrtc/base/maybe.h"
#include "webrtc/typedefs.h"
namespace webrtc {
struct CodecInst;
namespace acm2 {
class RentACodec {
public:
enum class CodecId {
#if defined(WEBRTC_CODEC_ISAC) || defined(WEBRTC_CODEC_ISACFX)
kISAC,
#endif
#ifdef WEBRTC_CODEC_ISAC
kISACSWB,
#endif
// Mono
kPCM16B,
kPCM16Bwb,
kPCM16Bswb32kHz,
// Stereo
kPCM16B_2ch,
kPCM16Bwb_2ch,
kPCM16Bswb32kHz_2ch,
// Mono
kPCMU,
kPCMA,
// Stereo
kPCMU_2ch,
kPCMA_2ch,
#ifdef WEBRTC_CODEC_ILBC
kILBC,
#endif
#ifdef WEBRTC_CODEC_G722
kG722, // Mono
kG722_2ch, // Stereo
#endif
#ifdef WEBRTC_CODEC_OPUS
kOpus, // Mono and stereo
#endif
kCNNB,
kCNWB,
kCNSWB,
#ifdef ENABLE_48000_HZ
kCNFB,
#endif
kAVT,
#ifdef WEBRTC_CODEC_RED
kRED,
#endif
kNumCodecs, // Implementation detail. Don't use.
// Set unsupported codecs to -1.
#if !defined(WEBRTC_CODEC_ISAC) && !defined(WEBRTC_CODEC_ISACFX)
kISAC = -1,
#endif
#ifndef WEBRTC_CODEC_ISAC
kISACSWB = -1,
#endif
// 48 kHz not supported, always set to -1.
kPCM16Bswb48kHz = -1,
#ifndef WEBRTC_CODEC_ILBC
kILBC = -1,
#endif
#ifndef WEBRTC_CODEC_G722
kG722 = -1, // Mono
kG722_2ch = -1, // Stereo
#endif
#ifndef WEBRTC_CODEC_OPUS
kOpus = -1, // Mono and stereo
#endif
#ifndef WEBRTC_CODEC_RED
kRED = -1,
#endif
#ifndef ENABLE_48000_HZ
kCNFB = -1,
#endif
kNone = -1
};
enum class NetEqDecoder {
kDecoderPCMu,
kDecoderPCMa,
kDecoderPCMu_2ch,
kDecoderPCMa_2ch,
kDecoderILBC,
kDecoderISAC,
kDecoderISACswb,
kDecoderPCM16B,
kDecoderPCM16Bwb,
kDecoderPCM16Bswb32kHz,
kDecoderPCM16Bswb48kHz,
kDecoderPCM16B_2ch,
kDecoderPCM16Bwb_2ch,
kDecoderPCM16Bswb32kHz_2ch,
kDecoderPCM16Bswb48kHz_2ch,
kDecoderPCM16B_5ch,
kDecoderG722,
kDecoderG722_2ch,
kDecoderRED,
kDecoderAVT,
kDecoderCNGnb,
kDecoderCNGwb,
kDecoderCNGswb32kHz,
kDecoderCNGswb48kHz,
kDecoderArbitrary,
kDecoderOpus,
kDecoderOpus_2ch,
};
static inline size_t NumberOfCodecs() {
return static_cast<size_t>(CodecId::kNumCodecs);
}
static inline rtc::Maybe<int> CodecIndexFromId(CodecId codec_id) {
const int i = static_cast<int>(codec_id);
return i < static_cast<int>(NumberOfCodecs()) ? i : rtc::Maybe<int>();
}
static inline rtc::Maybe<CodecId> CodecIdFromIndex(int codec_index) {
return static_cast<size_t>(codec_index) < NumberOfCodecs()
? static_cast<RentACodec::CodecId>(codec_index)
: rtc::Maybe<RentACodec::CodecId>();
}
static rtc::Maybe<CodecId> CodecIdByParams(const char* payload_name,
int sampling_freq_hz,
int channels);
static rtc::Maybe<CodecInst> CodecInstById(CodecId codec_id);
static rtc::Maybe<CodecInst> CodecInstByParams(const char* payload_name,
int sampling_freq_hz,
int channels);
static bool IsCodecValid(const CodecInst& codec_inst);
static rtc::ArrayView<const CodecInst> Database();
static rtc::Maybe<NetEqDecoder> NetEqDecoderFromCodecId(CodecId codec_id,
int num_channels);
};
} // namespace acm2
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_RENT_A_CODEC_H_
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