【Android Audio】dumpsys media.audio_policy分析【不定期更新文章】
dumpsys media.audio_policy
- 1、mEngine->getPhoneState()
- 2、所有强制设备输出的状态显示（Engine::setForceUse函数所设置）
- 3、(mTtsOutputAvailable/mMasterMono/mConfig.getSource())
- 4、所有可用输出设备（mAvailableOutputDevices）【DeviceVector】
-
- 4.1、mId
- 4.2、mTagName
- 4.3、mDeviceTypeAddr【AudioDeviceTypeAddr】
- 4.4、mEncapsulationModes、mEncapsulationMetadataTypes
- 4.5、mGains【AudioGains】、mProfiles【AudioProfileVector】
- 5、展示当前平台所有可用的输入设备(mAvailableInputDevices)
- 6、所有的Module(mHwModulesAll)【HwModuleCollection】
-
- 6.1、mName, mHandle, mHalVersion
- 6.2、mOutputProfiles【OutputProfileCollection】
-
- 6.2.1、mProfiles【AudioProfileVector】
- 6.2.2、mFlags、maxOpenCount、curOpenCount、maxActiveCount、curActiveCount
- 6.2.3、mGains【AudioGains】
- 6.2.4、mSupportedDevices【DeviceVector】
- 6.3、mInputProfiles【InputProfileCollection】
- 6.4、Declared devices (mDeclaredDevices)【DeviceVector】
- 6.5、Dynamic devices (mDynamicDevices)【DeviceVector】
- 6.6、mRoutes【AudioRouteVector】
-
- 6.6.1、mType【audio_route_type_t 】
- 6.6.2、mSink【PolicyAudioPort】
- 6.6.3、mSources【PolicyAudioPortVector 】
- 7、所有的SwAudioOutputDescriptor (mOutputs)
- 8、所有的AudioInputDescriptor (mInputs)
- 9、所有的音效EffectDescriptor (mEffects)
- 10、所有AudioPatch (mAudioPatches)
- 11、所有AudioPolicyMix (mPolicyMixes)
- 12、所有SourceClientDescriptor (mAudioSources.dump)
- 13、(mAllowedCapturePolicies)
- 14、Engine (mEngine->dump)
命令：
dumpsys media.audio_policy
AudioPolicyManager: 0xf1e5a000
Command Thread: 0xf1ff3300
Supported System Usages:
AudioCommandThread 0xf1ff3300 Dump
- Commands:
Command Time Wait pParam
Last Command
01 014581.648 0 0xf19e5440
AudioPolicyManager Dump: 0xf1e5a000
Primary Output: 13
1、mEngine->getPhoneState()
Phone state: AUDIO_MODE_NORMAL
2、所有强制设备输出的状态显示（Engine::setForceUse函数所设置）
Force use for communications: 0
Force use for media: 0
Force use for record: 0
Force use for dock: 8
Force use for system: 0
Force use for HDMI system audio: 12
Force use for encoded surround output: 0
Force use for vibrate ringing: 0
Google code地址
3、(mTtsOutputAvailable/mMasterMono/mConfig.getSource())
TTS output not available
Master mono: off
Config source: /vendor/etc/audio_policy_configuration.xml
4、所有可用输出设备（mAvailableOutputDevices）【DeviceVector】
mAvailableOutputDevices为DeviceVector类型，其包含了多个sp
class DeviceDescriptor : public DeviceDescriptorBase,
public PolicyAudioPort, public PolicyAudioPortConfig {
...
std::string mTagName; // Unique human readable identifier for a device port found in conf file.
FormatVector mEncodedFormats;
audio_format_t mCurrentEncodedFormat;
};
class DeviceDescriptorBase : public AudioPort, public AudioPortConfig {...};
class AudioPort : public virtual RefBase, public virtual Parcelable {
...
AudioGains mGains; // gain controllers
std::string mName;
audio_port_type_t mType;
audio_port_role_t mRole;
AudioProfileVector mProfiles; // AudioProfiles supported by this port (format, Rates, Channels)
};
class PolicyAudioPort : public virtual RefBase, private HandleGenerator<audio_port_handle_t> {
...
uint32_t mFlags; // attribute flags mask (e.g primary output, direct output...).
sp<HwModule> mModule; // audio HW module exposing this I/O stream
AudioRouteVector mRoutes; // Routes involving this port
};
4.1、mId
- id: 2
4.2、mTagName
tagName="Speaker"
- tag name: Speaker
4.3、mDeviceTypeAddr【AudioDeviceTypeAddr】
mDeviceTypeAddr.mType
- type: AUDIO_DEVICE_OUT_SPEAKER
4.4、mEncapsulationModes、mEncapsulationMetadataTypes
- supported encapsulation modes: 0
- supported encapsulation metadata types: 0
4.5、mGains【AudioGains】、mProfiles【AudioProfileVector】
mGains对应的xml配置为
<devicePort tagName="Speaker" role="sink" type="AUDIO_DEVICE_OUT_SPEAKER">
<gains>
<gain name="gain_1" mode="AUDIO_GAIN_MODE_JOINT"
minValueMB="-10000"
maxValueMB="0"
defaultValueMB="-6000"
stepValueMB="100"/>
</gains>
</devicePort>
mProfiles对应xml配置
AudioPort::dump(dst, spaces, verbose);
- Available output devices:
Device 1:
- id: 2
- tag name: Speaker
- type: AUDIO_DEVICE_OUT_SPEAKER
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - Profiles:
Profile 0:[dynamic format][dynamic channels][dynamic rates]
- gains:
Gain 1:
- mode: 00000001
- channel_mask: 00000000
- min_value: -10000 mB
- max_value: 0 mB
- default_value: -6000 mB
- step_value: 100 mB
- min_ramp_ms: 0 ms
- max_ramp_ms: 0 ms
5、展示当前平台所有可用的输入设备(mAvailableInputDevices)
- Available input devices:
Device 1:
- id: 46
- tag name: USB-Audio - USB Audio Device
- type: AUDIO_DEVICE_IN_USB_HEADSET
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - address: card=1;device=0;
- name: USB-Audio - USB Audio Device
- Profiles:
Profile 0:[dynamic format]
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:44100, 48000
- channel masks:0x000c, 0x0010, 0x80000001
Device 2:
- id: 12
- tag name: HDMI In
- type: AUDIO_DEVICE_IN_AUX_DIGITAL|AUDIO_DEVICE_IN_HDMI
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - Profiles:
Profile 0:[dynamic format][dynamic channels][dynamic rates]
Profile 1:
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
- channel masks:0x000c, 0x0010
- gains:
Gain 1:
- mode: 00000001
- channel_mask: 00000000
- min_value: -10000 mB
- max_value: 0 mB
- default_value: -6000 mB
- step_value: 100 mB
- min_ramp_ms: 0 ms
- max_ramp_ms: 0 ms
Device 3:
- id: 17
- tag name: Built-In Mic
- type: AUDIO_DEVICE_IN_BUILTIN_MIC
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - address: top
- Profiles:
Profile 0:
- format: AUDIO_FORMAT_PCM_32_BIT
- sampling rates:8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
- channel masks:0x000c, 0x0010, 0x0030
Profile 1:
- format: AUDIO_FORMAT_PCM_32_BIT
- sampling rates:16000
- channel masks:0x000c, 0x0010
6、所有的Module(mHwModulesAll)【HwModuleCollection】
mHwModulesAll为HwModuleCollection类型，其包含了多个sp
所有xml中配置的module模块 contains all modules declared in the config
/vendor/etc/audio_policy_configuration.xml
a2dp_audio_policy_configuration.xml
usb_audio_policy_configuration.xml
r_submix_audio_policy_configuration.xml
hearing_aid_audio_policy_configuration.xml
HW Modules dump:
以Module 1 primary为例，其他module相同
class HwModule : public RefBase {
const String8 mName; // base name of the audio HW module (primary, a2dp ...)
audio_module_handle_t mHandle;
OutputProfileCollection mOutputProfiles; // output profiles exposed by this module
InputProfileCollection mInputProfiles; // input profiles exposed by this module
uint32_t mHalVersion; // audio HAL API version
DeviceVector mDeclaredDevices; // devices declared in audio_policy configuration file.
DeviceVector mDynamicDevices; /**< devices that can be added/removed at runtime (e.g. rsbumix)*/
AudioRouteVector mRoutes;
PolicyAudioPortVector mPorts;
};
void HwModule::dump(String8 *dst) const
6.1、mName, mHandle, mHalVersion
- HW Module 1:
- name: primary (mName)
- handle: 10 (mHandle)
- version: 3.0 (mHalVersion)
6.2、mOutputProfiles【OutputProfileCollection】
mOutputProfiles为OutputProfileCollection类型，其包含了多个sp
- outputs:
这里以HDMI OUT设备获取profile为例，HDMI OUT当前支持了compress offload，direct output，mmap_no_irq_out_dynamic 3种典型类别的profile。
class IOProfile : public AudioPort, public PolicyAudioPort {
...
// Maximum number of input or output streams that can be simultaneously opened for this profile.
// By convention 0 means no limit. To respect legacy behavior, initialized to 1 for output
// profiles and 0 for input profiles
uint32_t maxOpenCount;
// Number of streams currently opened for this profile.
uint32_t curOpenCount;
// Maximum number of input or output streams that can be simultaneously active for this profile.
// By convention 0 means no limit. To respect legacy behavior, initialized to 0 for output
// profiles and 1 for input profiles
uint32_t maxActiveCount;
// Number of streams currently active for this profile. This is not the number of active clients
// (AudioTrack or AudioRecord) but the number of active HAL streams.
uint32_t curActiveCount;
DeviceVector mSupportedDevices; // supported devices: this input/output can be routed from/to
};
class AudioPort : public virtual RefBase, public virtual Parcelable {
...
AudioGains mGains; // gain controllers
std::string mName;
audio_port_type_t mType;
audio_port_role_t mRole;
AudioProfileVector mProfiles; // AudioProfiles supported by this port (format, Rates, Channels)
};
class PolicyAudioPort : public virtual RefBase, private HandleGenerator<audio_port_handle_t> {
...
uint32_t mFlags; // attribute flags mask (e.g primary output, direct output...).
sp<HwModule> mModule; // audio HW module exposing this I/O stream
AudioRouteVector mRoutes; // Routes involving this port
};
void IOProfile::dump(String8 *dst) const
{
std::string portStr;
AudioPort::dump(&portStr, 4);--------------------------------------------> AudioPort::dump
}
- 一个IOProfile对应一个output [x]:，同时对应audio_policy_configuration.xml中一个MixPort定义
void AudioPort::dump(std::string *dst, int spaces, bool verbose) const {
if (!mName.empty()) {
dst->append(base::StringPrintf("%*s- name: %s\n", spaces, "", mName.c_str()));
}
if (verbose) {
std::string profilesStr;
mProfiles.dump(&profilesStr, spaces); --------------------------------------> AudioProfileVector::dump
dst->append(profilesStr);
if (mGains.size() != 0) {
dst->append(base::StringPrintf("%*s- gains:\n", spaces, ""));
for (size_t i = 0; i < mGains.size(); i++) {
std::string gainStr;
mGains[i]->dump(&gainStr, spaces + 2, i);
dst->append(gainStr);
...
6.2.1、mProfiles【AudioProfileVector】
- 一个IOProfile可能支持多个profile（mProfiles）定义，也就是包含多个AudioProfile实例。每个AudioProfile对应一条Profile x：
void AudioProfileVector::dump(std::string *dst, int spaces) const
{
dst->append(base::StringPrintf("%*s- Profiles:\n", spaces, ""));
for (size_t i = 0; i < size(); i++) {
dst->append(base::StringPrintf("%*sProfile %zu:", spaces + 4, "", i));
std::string profileStr;
at(i)->dump(&profileStr, spaces + 8); ----------------------------------------> AudioProfile::dump
dst->append(profileStr);
}
}
void AudioProfile::dump(std::string *dst, int spaces) const
class AudioProfile final : public RefBase, public Parcelable
{
...
std::string mName;
audio_format_t mFormat; // The format for an audio profile should only be set when initialized.
ChannelMaskSet mChannelMasks;
SampleRateSet mSamplingRates;
bool mIsDynamicFormat = false;
bool mIsDynamicChannels = false;
bool mIsDynamicRate = false;
};
- 一个AudioProfile对应一个Profile [x]:.
- 如果是audio_policy_configuration.xml定义了MixPort的profile，则对应该文件中的一条profile字段定义;
dumpsys中显示：
output 3:
- name: compress offload
- Profiles:
Profile 0:
- format: AUDIO_FORMAT_AC3
- sampling rates:32000, 44100, 48000
- channel masks:0x0001, 0x0003, 0x0007, 0x000f, 0x0033, 0x0037, 0x003f, 0x0103, 0x0107
Profile 1:
- format: AUDIO_FORMAT_E_AC3
- sampling rates:16000, 22050, 24000, 32000, 44100, 48000
- channel masks:0x0001, 0x0003, 0x0007, 0x000f, 0x0033, 0x0037, 0x003f, 0x0103, 0x0107, 0x063f
Profile 2:
- format: AUDIO_FORMAT_E_AC3_JOC
- sampling rates:16000, 22050, 24000, 32000, 44100, 48000
- channel masks:0x0001, 0x0003, 0x0007, 0x000f, 0x0033, 0x0037, 0x003f, 0x0103, 0x0107, 0x063f
Profile 3:
...
audio_policy_configuration.xml中静态的定义了MixPort的profile：
<mixPort name="compress offload" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD">
<profile name="ac3 raw" format="AUDIO_FORMAT_AC3"
samplingRates="32000,44100,48000"
channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_TRI,AUDIO_CHANNEL_OUT_TRI_BACK,AUDIO_CHANNEL_OUT_3POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_SURROUND,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1"/>
<profile name="eac3 raw" format="AUDIO_FORMAT_E_AC3"
samplingRates="16000,22050,24000,32000,44100,48000"
channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_TRI,AUDIO_CHANNEL_OUT_TRI_BACK,AUDIO_CHANNEL_OUT_3POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_SURROUND,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
<profile name="eac3-joc raw" format="AUDIO_FORMAT_E_AC3_JOC"
samplingRates="16000,22050,24000,32000,44100,48000"
channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_TRI,AUDIO_CHANNEL_OUT_TRI_BACK,AUDIO_CHANNEL_OUT_3POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_SURROUND,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
<profile name="dts raw" format="AUDIO_FORMAT_DTS"
samplingRates="22050,24000,32000,44100,48000,88200,96000,192000"
channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_TRI,AUDIO_CHANNEL_OUT_QUAD_BACK,AUDIO_CHANNEL_OUT_QUAD_SIDE,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
<profile name="dtshd raw" format="AUDIO_FORMAT_DTS_HD"
samplingRates="22050,24000,32000,44100,48000,88200,96000,192000"
channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_TRI,AUDIO_CHANNEL_OUT_QUAD_BACK,AUDIO_CHANNEL_OUT_QUAD_SIDE,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
<profile name="iec raw" format="AUDIO_FORMAT_IEC61937"
samplingRates="8000,11025,16000,22050,24000,32000,44100,48000,128000,176400,192000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
</mixPort>
- 如果没有定义MixPort的profile，则通过getParameters获取对应设备所支持的能力级生成多条profile字段；
其中会显示 [dynamic format][dynamic channels][dynamic rates]
dumpsys中显示：
output 5:
- name: direct output
- Profiles:
Profile 0:[dynamic format][dynamic channels][dynamic rates]
- this: 0xf4e213f0
Profile 1:[dynamic format][dynamic channels][dynamic rates]
- this: 0xf4e120d0
- format: AUDIO_FORMAT_PCM_16_BIT
Profile 2:[dynamic format]
- this: 0xf4e10e60
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:32000, 44100, 48000, 88200, 96000, 176400, 192000
- channel masks:0x0003
audio_policy_configuration.xml中没有定义MixPort的profile：
<mixPort name="direct output" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT">
<profile name=""/>
</mixPort>
- 如果只定义了format、sampling rates、channel masks 3个其中某一个/两个，则只通过getParameters获取没有定义的属性，然后生成多条profile字段；其中会显示 [dynamic channels]。
dumpsys中显示：
output 7:
- name: mmap_no_irq_out_dynamic
- Profiles:
Profile 0:[dynamic channels]
- this: 0xf4e20e00
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:48000
- channel masks:0x0003
audio_policy_configuration.xml中只定义了MixPort的format和samplingRates属性，没有定义channelMasks：
<mixPort name="mmap_no_irq_out_dynamic" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_MMAP_NOIRQ">
<profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
samplingRates="48000"/>
</mixPort>
6.2.2、mFlags、maxOpenCount、curOpenCount、maxActiveCount、curActiveCount
output 3:
- name: compress offload
...
- flags: 0x0011 (AUDIO_OUTPUT_FLAG_DIRECT|AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
- maxOpenCount: 1 - curOpenCount: 0
- maxActiveCount: 1 - curActiveCount: 0
6.2.3、mGains【AudioGains】
当前没有在xml配置每个IOProfile的gain。
6.2.4、mSupportedDevices【DeviceVector】
output 3:
- name: compress offload
...
- Supported devices:
Device 1:
- tag name: BT SCO
- type: AUDIO_DEVICE_OUT_BLUETOOTH_SCO
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0
Device 2:
- tag name: BT A2DP Speaker
- type: AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0
Device 3:
- tag name: BT A2DP Headphones
- type: AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0
...
6.3、mInputProfiles【InputProfileCollection】
跟mOutputProfiles一样，InputProfileCollection和OutputProfileCollection都是同一类型。
typedef Vector<sp<IOProfile> > InputProfileCollection;
typedef Vector<sp<IOProfile> > OutputProfileCollection;
- inputs:
input 0:
- name: primary input
- Profiles:
Profile 0:
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
- channel masks:0x000c, 0x0010
- flags: 0x0000 (AUDIO_INPUT_FLAG_NONE)
- Supported devices:
Device 1:
- id: 63
- tag name: 小米小钢炮蓝牙音箱
- type: AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_IN_ALL_SCO
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - address: 74:A3:4A:1E:DD:99
- name: 小米小钢炮蓝牙音箱
Device 2:
- id: 11
- tag name: Spdif In
- type: AUDIO_DEVICE_IN_SPDIF
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0
......
- maxOpenCount: 1 - curOpenCount: 0
- maxActiveCount: 1 - curActiveCount: 0
input 1:
- name: echo reference
- Profiles:
Profile 0:
- format: AUDIO_FORMAT_PCM_32_BIT
- sampling rates:48000
- channel masks:0x000c, 0x0010
- flags: 0x0000 (AUDIO_INPUT_FLAG_NONE)
- maxOpenCount: 1 - curOpenCount: 0
- maxActiveCount: 1 - curActiveCount: 0
6.4、Declared devices (mDeclaredDevices)【DeviceVector】
当前xml中声明的devicePort
- Declared devices:
Device 1:
- id: 2
- tag name: Speaker
- type: AUDIO_DEVICE_OUT_SPEAKER
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - Profiles:
Profile 0:[dynamic format][dynamic channels][dynamic rates]
- gains:
Gain 1:
- mode: 00000001
- channel_mask: 00000000
- min_value: -10000 mB
- max_value: 0 mB
- default_value: -6000 mB
- step_value: 100 mB
- min_ramp_ms: 0 ms
- max_ramp_ms: 0 ms
.............
Device 19:
- tag name: BLE-In
- type: AUDIO_DEVICE_IN_BLUETOOTH_BLE
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - Profiles:
Profile 0:
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:16000
- channel masks:0x0010
- Dynamic devices:
Device 1:
- id: 54
- tag name: 小米小钢炮蓝牙音箱
- type: AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET
- supported encapsulation modes: 0 - supported encapsulation metadata types: 0 - address: 74:A3:4A:1E:DD:99
- name: 小米小钢炮蓝牙音箱
- Profiles:
Profile 0:
- format: AUDIO_FORMAT_PCM_16_BIT
- sampling rates:8000, 16000
- channel masks:0x0001
...
6.5、Dynamic devices (mDynamicDevices)【DeviceVector】
当前没有接入动态设备。(e.g. rsbumix)
6.6、mRoutes【AudioRouteVector】
对应xml中的“
<routes>
<route type="mix" sink="HDMI Out"
sources="primary output,tunnel pcm,direct output,Tuner,mmap_no_irq_out,compress offload,tunnel compress offload,tunnel direct output"/>
<route type="mix" sink="Speaker"
sources="primary output,tunnel pcm,direct pcm,BT SCO Headset Mic,Tuner,mmap_no_irq_out,compress offload,tunnel compress offload"/>
<route type="mix" sink="BT SCO"
...
</routes>
。
class AudioRoute : public virtual RefBase {
...
PolicyAudioPortVector mSources;
sp<PolicyAudioPort> mSink;
audio_route_type_t mType;
};
6.6.1、mType【audio_route_type_t 】
xml中定义
type="mix"
- Type: Mix
6.6.2、mSink【PolicyAudioPort】
xml中定义
sink="HDMI Out"
- Sink: HDMI Out
6.6.3、mSources【PolicyAudioPortVector 】
mSources其包含了多个sp
xml中定义
sources="primary output,tunnel pcm,direct output,Tuner,mmap_no_irq_out,compress offload,tunnel compress offload,tunnel direct output"/>
- Sources:
primary output
tunnel pcm
direct output
Tuner
mmap_no_irq_out_dynamic
compress offload
tunnel compress offload
tunnel direct output
output 0, output 1, output 2…
input 0, input 1, input 2…
xml中配置的一个mixPort对应一个output或者input
xml中role配置为source的为output，role配置为sink的为input（请看中间MIX部分）
7、所有的SwAudioOutputDescriptor (mOutputs)
Outputs dump:
- Output 13 dump:
Latency: 64
Flags 00000002
ID: 1
Sampling rate: 48000
Format: 00000001
Channels: 00000003
Devices: {type:0x2,@:}
Global active count: 0
Product Strategy id: 19 - ActivityCount: 0, StopTime: 14566175183444,
Volume Activities id: 1 - ActivityCount: 0, StopTime: 0, , Volume: -35.400, MuteCount: 00
Volume Activities id: 2 - ActivityCount: 0, StopTime: 0, , Volume: -4.800, MuteCount: 00
Volume Activities id: 4 - ActivityCount: 0, StopTime: 0, , Volume: -19.312, MuteCount: 00
Volume Activities id: 5 - ActivityCount: 0, StopTime: 0, , Volume: -18.938, MuteCount: 00
Volume Activities id: 6 - ActivityCount: 0, StopTime: 34133122973, , Volume: -36.000, MuteCount: 00
Volume Activities id: 7 - ActivityCount: 0, StopTime: 0, , Volume: -21.600, MuteCount: 00
Volume Activities id: 8 - ActivityCount: 0, StopTime: 0, , Volume: 0.000, MuteCount: 00
Volume Activities id: 9 - ActivityCount: 0, StopTime: 0, , Volume: 0.000, MuteCount: 00
Volume Activities id: 10 - ActivityCount: 0, StopTime: 0, , Volume: -8.700, MuteCount: 00
Volume Activities id: 11 - ActivityCount: 0, StopTime: 14566175183444, , Volume: -6.000, MuteCount: 00
Volume Activities id: 12 - ActivityCount: 0, StopTime: 0, , Volume: 0.000, MuteCount: 01
Volume Activities id: 13 - ActivityCount: 0, StopTime: 0, , Volume: -11.879, MuteCount: 00
Volume Activities id: 20 - ActivityCount: 0, StopTime: 0, , Volume: -35.500, MuteCount: 00
Volume Activities id: 23 - ActivityCount: 0, StopTime: 0, , Volume: 0.000, MuteCount: 00
AudioTrack Clients:
Client 1:
- Port Id: 31 Session Id: 17 UID: 1000
- Format: 00000001 Sampling rate: 48000 Channels: 00000003
- Attributes: { Content type: AUDIO_CONTENT_TYPE_SONIFICATION Usage: AUDIO_USAGE_ASSISTANCE_SONIFICATION Source: AUDIO_SOURCE_DEFAULT Flags: 0xc00 Tags: }
- Preferred Device Id: 00000000
- State: Inactive
- Stream: 1 flags: 00000004
- Refcount: 0
- DAP Primary Mix: 0x0
- DAP Secondary Outputs:
Client 2:
- Port Id: 33 Session Id: 49 UID: 1000
- Format: 00000001 Sampling rate: 48000 Channels: 00000003
- Attributes: { Content type: AUDIO_CONTENT_TYPE_SONIFICATION Usage: AUDIO_USAGE_ASSISTANCE_SONIFICATION Source: AUDIO_SOURCE_DEFAULT Flags: 0xc00 Tags: }
- Preferred Device Id: 00000000
- State: Inactive
- Stream: 1 flags: 00000004
- Refcount: 0
- DAP Primary Mix: 0x0
- DAP Secondary Outputs:
Client 3:
- Port Id: 34 Session Id: 57 UID: 1000
- Format: 00000001 Sampling rate: 48000 Channels: 00000003
- Attributes: { Content type: AUDIO_CONTENT_TYPE_SONIFICATION Usage: AUDIO_USAGE_ASSISTANCE_SONIFICATION Source: AUDIO_SOURCE_DEFAULT Flags: 0xc00 Tags: }
- Preferred Device Id: 00000000
- State: Inactive
- Stream: 1 flags: 00000004
- Refcount: 0
- DAP Primary Mix: 0x0
- DAP Secondary Outputs:
8、所有的AudioInputDescriptor (mInputs)
Inputs dump:
- Input 102 dump:
ID: 126
Sampling rate: 48000
Format: 1
Channels: 0000000c
Devices type:0x82000000,@:card=1;device=0;
Effects:
AudioRecord Clients:
Client 1:
- Port Id: 127 Session Id: 369 UID: 10071
- Format: 00000005 Sampling rate: 48000 Channels: 0000000c
- Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_UNKNOWN Source: AUDIO_SOURCE_VOICE_RECOGNITION Flags: 0x0 Tags: }
- Preferred Device Id: 00000000
- State: Active
- Source: 6 flags: 00000000
Effects:
9、所有的音效EffectDescriptor (mEffects)
Total Effects CPU: 70.000000 MIPS, Total Effects memory: 350 KB, Max memory used: 350 KB
Effects:
- Effect 11:
ID: 11
I/O: 13
Music Effect: yes
Session: 0
Name: True Surround HD
Enabled
Active
- Effect 19:
ID: 19
I/O: 13
Music Effect: yes
Session: 0
Name: Virtualsurround
Enabled
Active
- Effect 27:
ID: 27
I/O: 13
Music Effect: yes
Session: 0
Name: TrebleBass
Enabled
Active
- Effect 35:
ID: 35
I/O: 13
Music Effect: yes
Session: 0
Name: Hpeq
Enabled
Active
- Effect 43:
ID: 43
I/O: 13
Music Effect: yes
Session: 0
Name: DBX
Enabled
Active
- Effect 51:
ID: 51
I/O: 13
Music Effect: yes
Session: 0
Name: Balance
Enabled
Active
- Effect 59:
ID: 59
I/O: 13
Music Effect: yes
Session: 0
Name: Avl
Enabled
Active
10、所有AudioPatch (mAudioPatches)
Audio Patches:
Patch 1: owner uid 1041, handle 66, af handle 44
[src 1] Device ID 12 AUDIO_DEVICE_IN_AUX_DIGITAL|AUDIO_DEVICE_IN_HDMI
[sink 1] Device ID 48 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP
Patch 2: owner uid 1041, handle 76, af handle 52
[src 1] Mix ID 1 I/O handle 13
[sink 1] Device ID 48 AUDIO_DEVICE_OUT_BLUETOOTH_A2DP
Patch 3: owner uid 1041, handle 128, af handle 116
[src 1] Device ID 88 AUDIO_DEVICE_IN_USB_HEADSET
[sink 1] Mix ID 126 I/O handle 102
11、所有AudioPolicyMix (mPolicyMixes)
Audio Policy Mix:
12、所有SourceClientDescriptor (mAudioSources.dump)
Audio sources:
13、(mAllowedCapturePolicies)
AllowedCapturePolicies:
14、Engine (mEngine->dump)
Policy Engine dump:
Product Strategies dump:
-STRATEGY_PHONE (id: 14)
Selected Device: {type:AUDIO_DEVICE_OUT_BLUETOOTH_A2DP, @:74:A3:4A:1E:DD:99}
Group: 13 stream: AUDIO_STREAM_VOICE_CALL
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_VOICE_COMMUNICATION Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
Group: 3 stream: AUDIO_STREAM_BLUETOOTH_SCO
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_UNKNOWN Source: AUDIO_SOURCE_DEFAULT Flags: 0x4 Tags: }
-STRATEGY_SONIFICATION (id: 15)
Selected Device: {type:AUDIO_DEVICE_OUT_SPEAKER , AUDIO_DEVICE_OUT_BLUETOOTH_A2DP, @:74:A3:4A:1E:DD:99}
Group: 10 stream: AUDIO_STREAM_RING
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
Group: 2 stream: AUDIO_STREAM_ALARM
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_ALARM Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
............
Preferred devices per product strategy dump:
Volume Groups dump:
-AUDIO_STREAM_ACCESSIBILITY (id: 1)
Volume Curves Streams/Attributes, Curve points Streams for device category (index, attenuation in millibel)
Streams: AUDIO_STREAM_ACCESSIBILITY(10)
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
DEVICE_CATEGORY_HEADSET : { ( 0, -5800), ( 20, -4000), ( 60, -1700), (100, 0) }
DEVICE_CATEGORY_SPEAKER : { ( 0, -5800), ( 20, -4000), ( 60, -1700), (100, 0) }
DEVICE_CATEGORY_EARPIECE : { ( 0, -5800), ( 20, -4000), ( 60, -1700), (100, 0) }
DEVICE_CATEGORY_EXT_MEDIA : { ( 0, -5800), ( 20, -4000), ( 60, -1700), (100, 0) }
Can be muted Index Min Index Max Index Cur [device : index]...
true 01 15 0002 : 05, 0004 : 02, 0008 : 02, 0080 : 15, 0400 : 05, 40000 : 06, 4000000 : 04, 40000000 : 05,
-AUDIO_STREAM_ALARM (id: 2)
Volume Curves Streams/Attributes, Curve points Streams for device category (index, attenuation in millibel)
Streams: AUDIO_STREAM_ALARM(4)
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_ALARM Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
DEVICE_CATEGORY_HEADSET : { ( 0, -4950), ( 33, -3350), ( 66, -1700), (100, 0) }
DEVICE_CATEGORY_SPEAKER : { ( 0, -2970), ( 33, -2010), ( 66, -1020), (100, 0) }
DEVICE_CATEGORY_EARPIECE : { ( 0, -4950), ( 33, -3350), ( 66, -1700), (100, 0) }
DEVICE_CATEGORY_EXT_MEDIA : { ( 0, -5800), ( 20, -4000), ( 60, -2100), (100, -1000) }
Can be muted Index Min Index Max Index Cur [device : index]...
true 01 07 0002 : 06, 0400 : 06, 40000000 : 06,
-AUDIO_STREAM_BLUETOOTH_SCO (id: 3)
Volume Curves Streams/Attributes, Curve points Streams for device category (index, attenuation in millibel)
Streams: AUDIO_STREAM_BLUETOOTH_SCO(6)
Attributes: { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_UNKNOWN Source: AUDIO_SOURCE_DEFAULT Flags: 0x4 Tags: }
DEVICE_CATEGORY_HEADSET : { ( 0, -4200), ( 33, -2800), ( 66, -1400), (100, 0) }
DEVICE_CATEGORY_SPEAKER : { ( 0, -2400), ( 33, -1600), ( 66, -800), (100, 0) }
DEVICE_CATEGORY_EARPIECE : { ( 0, -4200), ( 33, -2800), ( 66, -1400), (100, 0) }
DEVICE_CATEGORY_EXT_MEDIA : { ( 1, -5800), ( 20, -4000), ( 60, -1700), (100, 0) }
Can be muted Index Min Index Max Index Cur [device : index]...
true 00 15 0002 : 07, 0080 : 15, 0400 : 07, 40000000 : 07,
............
-AUDIO_STREAM_age: AUDIO_USAGE_CALL_ASSISTANT Source: AUDIO_SOURCE_DEFAULT Flags: 0x0 Tags: }
DEVICE_CATEGORY_HEADSET : { ( 0, 0), (100, 0) }
DEVICE_CATEGORY_SPEAKER : { ( 0, 0), (100, 0) }
DEVICE_CATEGORY_EARPIEog:
Package manager errors: 0
- uid= 1000cconsole:/ #