rk3568 音频配置文件 audio_policy_configuration.xml

在修改rk3568音频配置文件时，怎么修改都不正常， 这坑了我好久，逐步去看解释文件。原来配置文件不在framework目录下，是在device/rockchip/common/audio_policy_configuration.xml里。在这里可以更改各种配置，我这里改成四通道输入。配置如下：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!-- Copyright (C) 2016 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.
-->

<audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
    <globalConfiguration speaker_drc_enabled="true"/>

    <modules>
        <module name="primary" halVersion="2.0">
            <attachedDevices>
                <item>Speaker</item>
                <item>Built-In Mic</item>
                <item>HDMIIn</item>
            </attachedDevices>
            <defaultOutputDevice>Speaker</defaultOutputDevice>
            <mixPorts>
                <mixPort name="primary output" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY">
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="44100,48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                </mixPort>
                <mixPort name="spdif_passthrough" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT">
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="32000,44100,48000"
                             channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                    <profile name="" format="AUDIO_FORMAT_IEC61937"
                             samplingRates="32000,44100,48000"
                             channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                </mixPort>
                <mixPort name="hdmi" role="source" flags="AUDIO_OUTPUT_FLAG_DIRECT">
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="32000,44100,48000,96000,176400,192000"
                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
                    <profile name="" format="AUDIO_FORMAT_IEC61937"
                             samplingRates="32000,44100,48000,96000,176400,192000"
                             channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
                    <profile name=""/>
                </mixPort>
                <mixPort name="primary input" role="sink">
                    <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_QUAD"/>       <!--  增加 AUDIO_CHANNEL_IN_QUAD -->
                </mixPort>
            </mixPorts>
            <devicePorts>
                <devicePort tagName="Speaker" type="AUDIO_DEVICE_OUT_SPEAKER" role="sink">
                </devicePort>
                <devicePort tagName="Wired Headset" type="AUDIO_DEVICE_OUT_WIRED_HEADSET" role="sink">
                </devicePort>
                <devicePort tagName="Wired Headphones" type="AUDIO_DEVICE_OUT_WIRED_HEADPHONE" 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_CARKIT" role="sink">
                </devicePort>
                <devicePort tagName="HDMI Out" type="AUDIO_DEVICE_OUT_AUX_DIGITAL" role="sink">
                </devicePort>
                <devicePort tagName="SPDIF Out" type="AUDIO_DEVICE_OUT_SPDIF" role="sink">
                </devicePort>

                <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
                </devicePort>
                <devicePort tagName="Wired Headset Mic" type="AUDIO_DEVICE_IN_WIRED_HEADSET" role="source">
                </devicePort>
                <devicePort tagName="BT SCO Headset Mic" type="AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET" role="source">
                </devicePort>
                <devicePort tagName="HDMIIn" type="AUDIO_DEVICE_IN_HDMI" role="source">
                </devicePort>
            </devicePorts>
            <routes>
                <route type="mix" sink="Speaker"
                       sources="primary output"/>
                <route type="mix" sink="Wired Headset"
                       sources="primary output"/>
                <route type="mix" sink="Wired Headphones"
                       sources="primary output"/>
                <route type="mix" sink="BT SCO"
                       sources="primary output"/>
                <route type="mix" sink="BT SCO Headset"
                       sources="primary output"/>
                <route type="mix" sink="BT SCO Car Kit"
                       sources="primary output"/>
                <route type="mix" sink="HDMI Out"
                       sources="primary output,hdmi"/>
                <route type="mix" sink="SPDIF Out"
                       sources="primary output,spdif_passthrough"/>

                <route type="mix" sink="primary input"
                       sources="Built-In Mic,Wired Headset Mic,BT SCO Headset Mic,HDMIIn"/>
            </routes>
        </module>

        <!-- A2dp Audio HAL -->
        <xi:include href="a2dp_audio_policy_configuration.xml"/>

        <!-- Usb Audio HAL -->
        <xi:include href="usb_audio_policy_configuration.xml"/>

        <!-- Remote Submix Audio HAL -->
        <xi:include href="r_submix_audio_policy_configuration.xml"/>

    </modules>

    <!-- Volume section -->
    <xi:include href="audio_policy_volumes_drc.xml"/>
    <xi:include href="default_volume_tables.xml"/>

</audioPolicyConfiguration>