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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <system/audio.h>
#include <sys/types.h>
namespace android {
// ----------------------------------------------------------------------------
// Definitions for audio_policy.conf file parsing
// ----------------------------------------------------------------------------
struct StringToEnum {
const char *name;
uint32_t value;
};
#define STRING_TO_ENUM(string) { #string, string }
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#endif
const StringToEnum sDeviceNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_LINE),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_SPDIF),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_FM),
STRING_TO_ENUM(AUDIO_DEVICE_OUT_AUX_LINE),
STRING_TO_ENUM(AUDIO_DEVICE_IN_AMBIENT),
STRING_TO_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
STRING_TO_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
STRING_TO_ENUM(AUDIO_DEVICE_IN_HDMI),
STRING_TO_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
STRING_TO_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
STRING_TO_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
STRING_TO_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
STRING_TO_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
STRING_TO_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
STRING_TO_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
STRING_TO_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
STRING_TO_ENUM(AUDIO_DEVICE_IN_LINE),
STRING_TO_ENUM(AUDIO_DEVICE_IN_SPDIF),
STRING_TO_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
STRING_TO_ENUM(AUDIO_DEVICE_IN_LOOPBACK),
};
const StringToEnum sOutputFlagNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_FAST),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
};
const StringToEnum sInputFlagNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_INPUT_FLAG_FAST),
STRING_TO_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
};
const StringToEnum sFormatNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_FORMAT_PCM_16_BIT),
STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_BIT),
STRING_TO_ENUM(AUDIO_FORMAT_PCM_32_BIT),
STRING_TO_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
STRING_TO_ENUM(AUDIO_FORMAT_PCM_FLOAT),
STRING_TO_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
STRING_TO_ENUM(AUDIO_FORMAT_MP3),
STRING_TO_ENUM(AUDIO_FORMAT_AAC),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_MAIN),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_LC),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_SSR),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_LTP),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V1),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_SCALABLE),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_ERLC),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_LD),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_HE_V2),
STRING_TO_ENUM(AUDIO_FORMAT_AAC_ELD),
STRING_TO_ENUM(AUDIO_FORMAT_VORBIS),
STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V1),
STRING_TO_ENUM(AUDIO_FORMAT_HE_AAC_V2),
STRING_TO_ENUM(AUDIO_FORMAT_OPUS),
STRING_TO_ENUM(AUDIO_FORMAT_AC3),
STRING_TO_ENUM(AUDIO_FORMAT_E_AC3),
};
const StringToEnum sOutChannelsNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_MONO),
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_STEREO),
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_QUAD),
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
};
const StringToEnum sInChannelsNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_CHANNEL_IN_MONO),
STRING_TO_ENUM(AUDIO_CHANNEL_IN_STEREO),
STRING_TO_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
};
const StringToEnum sGainModeNameToEnumTable[] = {
STRING_TO_ENUM(AUDIO_GAIN_MODE_JOINT),
STRING_TO_ENUM(AUDIO_GAIN_MODE_CHANNELS),
STRING_TO_ENUM(AUDIO_GAIN_MODE_RAMP),
};
class ConfigParsingUtils
{
public:
static uint32_t stringToEnum(const struct StringToEnum *table,
size_t size,
const char *name);
static const char *enumToString(const struct StringToEnum *table,
size_t size,
uint32_t value);
static bool stringToBool(const char *value);
static uint32_t parseOutputFlagNames(char *name);
static uint32_t parseInputFlagNames(char *name);
static audio_devices_t parseDeviceNames(char *name);
};
}; // namespace android
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