AudioInputDescriptor.cpp revision 98cc191247388132b6fd8a4ecd07abd6e4c5a0ed 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "APM::AudioInputDescriptor"
18//#define LOG_NDEBUG 0
19
20#include "AudioInputDescriptor.h"
21#include "IOProfile.h"
22#include "AudioGain.h"
23#include "HwModule.h"
24#include <media/AudioPolicy.h>
25
26namespace android {
27
28AudioInputDescriptor::AudioInputDescriptor(const sp<IOProfile>& profile)
29    : mId(0), mIoHandle(0),
30      mDevice(AUDIO_DEVICE_NONE), mPolicyMix(NULL), mPatchHandle(0), mRefCount(0),
31      mInputSource(AUDIO_SOURCE_DEFAULT), mProfile(profile), mIsSoundTrigger(false)
32{
33    if (profile != NULL) {
34        mSamplingRate = profile->pickSamplingRate();
35        mFormat = profile->pickFormat();
36        mChannelMask = profile->pickChannelMask();
37        if (profile->mGains.size() > 0) {
38            profile->mGains[0]->getDefaultConfig(&mGain);
39        }
40    }
41}
42
43void AudioInputDescriptor::setIoHandle(audio_io_handle_t ioHandle)
44{
45    mId = AudioPort::getNextUniqueId();
46    mIoHandle = ioHandle;
47}
48
49void AudioInputDescriptor::toAudioPortConfig(
50                                                   struct audio_port_config *dstConfig,
51                                                   const struct audio_port_config *srcConfig) const
52{
53    ALOG_ASSERT(mProfile != 0,
54                "toAudioPortConfig() called on input with null profile %d", mIoHandle);
55    dstConfig->config_mask = AUDIO_PORT_CONFIG_SAMPLE_RATE|AUDIO_PORT_CONFIG_CHANNEL_MASK|
56                            AUDIO_PORT_CONFIG_FORMAT|AUDIO_PORT_CONFIG_GAIN;
57    if (srcConfig != NULL) {
58        dstConfig->config_mask |= srcConfig->config_mask;
59    }
60
61    AudioPortConfig::toAudioPortConfig(dstConfig, srcConfig);
62
63    dstConfig->id = mId;
64    dstConfig->role = AUDIO_PORT_ROLE_SINK;
65    dstConfig->type = AUDIO_PORT_TYPE_MIX;
66    dstConfig->ext.mix.hw_module = mProfile->mModule->mHandle;
67    dstConfig->ext.mix.handle = mIoHandle;
68    dstConfig->ext.mix.usecase.source = mInputSource;
69}
70
71void AudioInputDescriptor::toAudioPort(
72                                                    struct audio_port *port) const
73{
74    ALOG_ASSERT(mProfile != 0, "toAudioPort() called on input with null profile %d", mIoHandle);
75
76    mProfile->toAudioPort(port);
77    port->id = mId;
78    toAudioPortConfig(&port->active_config);
79    port->ext.mix.hw_module = mProfile->mModule->mHandle;
80    port->ext.mix.handle = mIoHandle;
81    port->ext.mix.latency_class = AUDIO_LATENCY_NORMAL;
82}
83
84status_t AudioInputDescriptor::dump(int fd)
85{
86    const size_t SIZE = 256;
87    char buffer[SIZE];
88    String8 result;
89
90    snprintf(buffer, SIZE, " ID: %d\n", mId);
91    result.append(buffer);
92    snprintf(buffer, SIZE, " Sampling rate: %d\n", mSamplingRate);
93    result.append(buffer);
94    snprintf(buffer, SIZE, " Format: %d\n", mFormat);
95    result.append(buffer);
96    snprintf(buffer, SIZE, " Channels: %08x\n", mChannelMask);
97    result.append(buffer);
98    snprintf(buffer, SIZE, " Devices %08x\n", mDevice);
99    result.append(buffer);
100    snprintf(buffer, SIZE, " Ref Count %d\n", mRefCount);
101    result.append(buffer);
102    snprintf(buffer, SIZE, " Open Ref Count %d\n", mOpenRefCount);
103    result.append(buffer);
104
105    write(fd, result.string(), result.size());
106
107    return NO_ERROR;
108}
109
110}; //namespace android
111