<
?xml version="1.0" encoding="UTF-8" standalone="yes"
?>
<!-- Copyright (c) 2016-2017, 2019, 2021 The Linux Foundation. All rights reserved
Not a Contribution.
-->
<!-- Copyright (C) 2015 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use th
is 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
d
istributed under the License
is d
istributed on an "AS
IS" BAS
IS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License
for the specific language governing perm
issions and
limitations under the License.
-->
<audioPolicyConfiguration version="7.0"
xmlns:xi="http://www.w3.org/2001/XInclude">
<!-- version section contains a “version” tag in the
form “major.minor” e.g version=”1.0” -->
<!-- Global configuration Decalaration -->
<globalConfiguration speaker_drc_enabled="true"/>
<!-- Modules section:
There is one section per audio HW module present on the plat
form.
Each module section will contains two mandatory tags
for audio HAL “halVersion” and “name”.
The module names are the same as in current .conf file:
“primary”, “A2DP”, “remote_submix”, “USB”
Each module will contain the following sections:
“devicePorts”: a l
ist of device descriptors
for all input and output devices accessible via th
is
module.
Th
is contains both permanently attached devices and removable devices.
“mixPorts”: l
isting all output and input streams exposed by the audio HAL
“routes”: l
ist of possible connections between input and output devices or between stream and
devices.
"route":
is defined by an attribute:
-"type": <mux|mix> means all sources are mutual exclusive (mux) or can be mixed (mix)
-"sink": the sink involved in th
is route
-"sources": all the sources than can be connected to the sink via v
is route
“attachedDevices”: permanently attached devices.
The attachedDevices section
is a l
ist of devices names. The names correspond to device names
defined in <devicePorts> section.
“defaultOutputDevice”: device to be used by default when no policy rule applies
-->
<modules>
<module name="primary" halVersion="2.0">
<attachedDevices>
<item>Speaker</item>
<item>Speaker Safe</item>
<item>Earpiece</item>
<item>Telephony Tx</item>
<item>Built-In Mic</item>
<item>Built-In Back Mic</item>
<item>Telephony Rx</item>
</attachedDevices>
<defaultOutputDevice>Speaker</defaultOutputDevice>
<mixPorts>
<mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY AUDIO_OUTPUT_FLAG_FAST">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="raw" role="source" flags="AUDIO_OUTPUT_FLAG_RAW AUDIO_OUTPUT_FLAG_FAST">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="hifi_playback" role="source" />
<mixPort name="deep_buffer" role="source"
flags="AUDIO_OUTPUT_FLAG_DEEP_BUFFER">
<profile name=""
format="AUDIO_
FORMAT_PCM_24_BIT_PACKED"
samplingRates="44100 48000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="compressed_offload" role="source"
flags="AUDIO_OUTPUT_FLAG_DIRECT AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD AUDIO_OUTPUT_FLAG_NON_BLOCKING AUDIO_OUTPUT_FLAG_GAPLESS_OFFLOAD">
<profile name=""
format="AUDIO_
FORMAT_MP3"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
<profile name=""
format="AUDIO_
FORMAT_AAC_LC"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000 64000 88200 96000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
<profile name=""
format="AUDIO_
FORMAT_AAC_HE_V1"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000 64000 88200 96000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
<profile name=""
format="AUDIO_
FORMAT_AAC_HE_V2"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO AUDIO_CHANNEL_OUT_MONO"/>
</mixPort>
<mixPort name="voice_tx" role="source">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 16000 48000" channelMasks="AUDIO_CHANNEL_OUT_MONO AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="mmap_no_irq_out" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT AUDIO_OUTPUT_FLAG_MMAP_NOIRQ">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="voip_rx" role="source"
flags="AUDIO_OUTPUT_FLAG_VOIP_RX">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 16000 32000 48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="incall_music_uplink" role="source"
flags="AUDIO_OUTPUT_FLAG_INCALL_MUSIC">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 16000 48000"
channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
<mixPort name="primary input" role="sink">
<profile name=""
format="AUDIO_
FORMAT_PCM_8_24_BIT"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO AUDIO_CHANNEL_IN_FRONT_BACK AUDIO_CHANNEL_INDEX_MASK_3"/>
</mixPort>
<mixPort name="fast input" role="sink" flags="AUDIO_INPUT_FLAG_FAST">
<profile name=""
format="AUDIO_
FORMAT_PCM_8_24_BIT"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO AUDIO_CHANNEL_IN_FRONT_BACK AUDIO_CHANNEL_INDEX_MASK_3"/>
</mixPort>
<mixPort name="hifi_input" role="sink" />
<mixPort name="voice_rx" role="sink">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 16000 48000" channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO"/>
</mixPort>
<mixPort name="mmap_no_irq_in" role="sink" flags="AUDIO_INPUT_FLAG_MMAP_NOIRQ">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO AUDIO_CHANNEL_IN_FRONT_BACK AUDIO_CHANNEL_INDEX_MASK_3"/>
</mixPort>
<mixPort name="voip_tx" role="sink"
flags="AUDIO_INPUT_FLAG_VOIP_TX">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="8000 16000 32000 48000" channelMasks="AUDIO_CHANNEL_IN_MONO"/>
</mixPort>
</mixPorts>
<devicePorts>
<devicePort tagName="Earpiece" type="AUDIO_DEVICE_OUT_EARPIECE" role="sink">
</devicePort>
<devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
</devicePort>
<devicePort tagName="Speaker Safe" type="AUDIO_DEVICE_OUT_SPEAKER_SAFE" role="sink">
</devicePort>
<devicePort tagName="BT SCO" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO" role="sink">
</devicePort>
<devicePort tagName="BT SCO Headset" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET" role="sink">
</devicePort>
<devicePort tagName="BT SCO Car
Kit" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CAR
KIT" role="sink">
</devicePort>
<devicePort tagName="Telephony Tx" type="AUDIO_DEVICE_OUT_TELEPHONY_TX" role="sink">
</devicePort>
<devicePort tagName="USB Device Out" type="AUDIO_DEVICE_OUT_USB_DEVICE" role="sink">
</devicePort>
<devicePort tagName="USB Headset Out" type="AUDIO_DEVICE_OUT_USB_HEADSET" role="sink">
</devicePort>
<devicePort tagName="BT A2DP Out" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP" role="sink"
encoded
Formats="AUDIO_
FORMAT_LDAC AUDIO_
FORMAT_APTX AUDIO_
FORMAT_APTX_HD AUDIO_
FORMAT_AAC AUDIO_
FORMAT_SBC">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100 48000 88200 96000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</devicePort>
<devicePort tagName="BT A2DP Headphones" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES" role="sink"
encoded
Formats="AUDIO_
FORMAT_LDAC AUDIO_
FORMAT_APTX AUDIO_
FORMAT_APTX_HD AUDIO_
FORMAT_AAC AUDIO_
FORMAT_SBC">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100 48000 88200 96000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</devicePort>
<devicePort tagName="BT A2DP Speaker" type="AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER" role="sink"
encoded
Formats="AUDIO_
FORMAT_LDAC AUDIO_
FORMAT_APTX AUDIO_
FORMAT_APTX_HD AUDIO_
FORMAT_AAC AUDIO_
FORMAT_SBC">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100 48000 88200 96000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</devicePort>
<devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
</devicePort>
<devicePort tagName="Built-In Back Mic" type="AUDIO_DEVICE_IN_BACK_MIC" role="source">
</devicePort>
<devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET" role="source">
</devicePort>
<devicePort tagName="Telephony Rx" type="AUDIO_DEVICE_IN_TELEPHONY_RX" role="source">
</devicePort>
<!-- TODO: Enable multi-channel recording -->
<devicePort tagName="USB Device In" type="AUDIO_DEVICE_IN_USB_DEVICE" role="source">
</devicePort>
<devicePort tagName="USB Headset In" type="AUDIO_DEVICE_IN_USB_HEADSET" role="source">
</devicePort>
</devicePorts>
<routes>
<route type="mix" sink="Earpiece"
sources="primary output,raw,deep_buffer,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Speaker"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Speaker Safe"
sources="primary output,raw,deep_buffer,compressed_offload,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="BT SCO"
sources="primary output,raw,deep_buffer,voip_rx"/>
<route type="mix" sink="BT SCO Headset"
sources="primary output,raw,deep_buffer,voip_rx"/>
<route type="mix" sink="BT SCO Car
Kit"
sources="primary output,raw,deep_buffer,voip_rx"/>
<route type="mix" sink="USB Device Out"
sources="primary output,raw,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="USB Headset Out"
sources="primary output,raw,deep_buffer,compressed_offload,hifi_playback,mmap_no_irq_out,voip_rx"/>
<route type="mix" sink="Telephony Tx"
sources="voice_tx,incall_music_uplink"/>
<route type="mix" sink="primary input"
sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>
<route type="mix" sink="fast input"
sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>
<route type="mix" sink="voice_rx"
sources="Telephony Rx"/>
<route type="mix" sink="hifi_input" sources="USB Device In,USB Headset In" />
<route type="mix" sink="mmap_no_irq_in"
sources="Built-In Mic,Built-In Back Mic,USB Device In,USB Headset In"/>
<route type="mix" sink="voip_tx"
sources="Built-In Mic,Built-In Back Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>
<route type="mix" sink="BT A2DP Out"
sources="primary output,deep_buffer,compressed_offload,voip_rx"/>
<route type="mix" sink="BT A2DP Headphones"
sources="primary output,deep_buffer,compressed_offload,voip_rx"/>
<route type="mix" sink="BT A2DP Speaker"
sources="primary output,deep_buffer,compressed_offload,voip_rx"/>
</routes>
</module>
<!-- A2DP Input Audio HAL -->
<module name="a2dp" halVersion="2.0">
<mixPorts>
<mixPort name="a2dp input" role="sink">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100 48000"
channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO"/>
</mixPort>
</mixPorts>
<devicePorts>
<devicePort tagName="BT A2DP In" type="AUDIO_DEVICE_IN_BLUETOOTH_A2DP" role="source">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100 48000"
channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO"/>
</devicePort>
</devicePorts>
<routes>
<route type="mix" sink="a2dp input"
sources="BT A2DP In"/>
</routes>
</module>
<!-- Usb Audio HAL -->
<module name="usb" halVersion="2.0">
<mixPorts>
<mixPort name="usb_accessory output" role="source">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</mixPort>
</mixPorts>
<devicePorts>
<devicePort tagName="USB Host Out" type="AUDIO_DEVICE_OUT_USB_ACCESSORY" role="sink">
<profile name=""
format="AUDIO_
FORMAT_PCM_16_BIT"
samplingRates="44100" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
</devicePort>
</devicePorts>
<routes>
<route type="mix" sink="USB Host Out"
sources="usb_accessory output"/>
</routes>
</module>
<!-- Remote Submix Audio HAL -->
<xi:include href="r_submix_audio_policy_configuration.
xml"/>
</modules>
<!-- End of Modules section -->
<!-- Volume section -->
<xi:include href="audio_policy_volumes.
xml"/>
<xi:include href="default_volume_tables.
xml"/>
<!-- End of Volume section -->
</audioPolicyConfiguration>
以上是完整文件，路径：/vendor/etc/audio_policy_configuration.
xml
一加13 Coloros15，安卓版本15，已ROOT，修改该文件，绕过安卓音频SRC实现系统全局自适应采样率（Dynamic sampling rates）、自适应位深（Bit_perfect）（保持音频文件原始位深，16bit文件不升级位深）、禁用升频和重采样，关闭所有音频音效（effect）以及影响音频质量无损输出的一切音频处理，最大程度上抑制并降低音频抖动（jitter）(最大化优化时钟管理和同步)、最大程度抑制并降低音频失真和噪声以及电源纹波和噪声，以输出和输入最干净无污染最高质量的HIFI无损原始音频信号直出，并且输出修改过的完整文件（不要片段）
XML软件与应用开发
本文介绍了多种可用或正在开发中的XML软件，包括SAX等工具。文中还提到了一些成熟的转换及应用开发引擎如Balise、Omnimark等具备XML能力，并提供了API。更多XML相关软件详情请访问XML网页。
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