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media / base / audio_codecs.h [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_AUDIO_CODECS_H_
#define MEDIA_BASE_AUDIO_CODECS_H_
#include <string>
#include <string_view>
#include "media/base/media_export.h"
#include "media/media_buildflags.h"
namespace media {
enum class AudioCodec {
// These values are histogrammed over time; do not change their ordinal
// values. When deleting a codec replace it with a dummy value; when adding a
// codec, do so at the bottom before kMaxValue, and update the value of
// kMaxValue to equal the new codec.
kUnknown = 0,
kAAC = 1,
kMP3 = 2,
kPCM = 3,
kVorbis = 4,
kFLAC = 5,
kAMR_NB = 6,
kAMR_WB = 7,
kPCM_MULAW = 8,
kGSM_MS = 9,
kPCM_S16BE = 10,
kPCM_S24BE = 11,
kOpus = 12,
kEAC3 = 13,
kPCM_ALAW = 14,
kALAC = 15,
kAC3 = 16,
kMpegHAudio = 17,
kDTS = 18,
kDTSXP2 = 19,
kDTSE = 20,
kAC4 = 21,
kIAMF = 22,
// DO NOT ADD RANDOM AUDIO CODECS!
//
// The only acceptable time to add a new codec is if there is production code
// that uses said codec in the same CL.
// Must always be equal to the largest entry ever logged.
kMaxValue = kIAMF,
};
enum class AudioCodecProfile {
// These values are histogrammed over time; do not change their ordinal
// values. When deleting a profile replace it with a dummy value; when adding
// a profile, do so at the bottom before kMaxValue, and update the value of
// kMaxValue to equal the new codec.
kUnknown = 0,
kXHE_AAC = 1,
kIAMF_SIMPLE = 2,
kIAMF_BASE = 3,
kMaxValue = kIAMF_BASE,
};
std::string MEDIA_EXPORT GetCodecName(AudioCodec codec);
std::string MEDIA_EXPORT GetProfileName(AudioCodecProfile profile);
MEDIA_EXPORT std::ostream& operator<<(std::ostream& os,
const AudioCodec& codec);
MEDIA_EXPORT AudioCodec StringToAudioCodec(const std::string& codec_id);
#if BUILDFLAG(ENABLE_PLATFORM_AC4_AUDIO)
MEDIA_EXPORT bool ParseDolbyAc4CodecId(const std::string& codec_id,
uint8_t* bitstream_version,
uint8_t* presentation_version,
uint8_t* presentation_level);
#endif // BUILDFLAG(ENABLE_PLATFORM_AC4_AUDIO)
#if BUILDFLAG(ENABLE_PLATFORM_IAMF_AUDIO)
MEDIA_EXPORT bool ParseIamfCodecId(std::string_view codec_id,
uint8_t* primary_profilec,
uint8_t* additional_profilec);
#endif // BUILDFLAG(ENABLE_PLATFORM_IAMF_AUDIO)
} // namespace media
#endif // MEDIA_BASE_AUDIO_CODECS_H_